diff --git a/htdocs/Libs/Codemirror/brace-fold.js b/htdocs/Libs/Codemirror/brace-fold.js
new file mode 100644
index 0000000..654d1fb
--- /dev/null
+++ b/htdocs/Libs/Codemirror/brace-fold.js
@@ -0,0 +1,105 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("fold", "brace", function(cm, start) {
+  var line = start.line, lineText = cm.getLine(line);
+  var tokenType;
+
+  function findOpening(openCh) {
+    for (var at = start.ch, pass = 0;;) {
+      var found = at <= 0 ? -1 : lineText.lastIndexOf(openCh, at - 1);
+      if (found == -1) {
+        if (pass == 1) break;
+        pass = 1;
+        at = lineText.length;
+        continue;
+      }
+      if (pass == 1 && found < start.ch) break;
+      tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1));
+      if (!/^(comment|string)/.test(tokenType)) return found + 1;
+      at = found - 1;
+    }
+  }
+
+  var startToken = "{", endToken = "}", startCh = findOpening("{");
+  if (startCh == null) {
+    startToken = "[", endToken = "]";
+    startCh = findOpening("[");
+  }
+
+  if (startCh == null) return;
+  var count = 1, lastLine = cm.lastLine(), end, endCh;
+  outer: for (var i = line; i <= lastLine; ++i) {
+    var text = cm.getLine(i), pos = i == line ? startCh : 0;
+    for (;;) {
+      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == tokenType) {
+        if (pos == nextOpen) ++count;
+        else if (!--count) { end = i; endCh = pos; break outer; }
+      }
+      ++pos;
+    }
+  }
+  if (end == null || line == end) return;
+  return {from: CodeMirror.Pos(line, startCh),
+          to: CodeMirror.Pos(end, endCh)};
+});
+
+CodeMirror.registerHelper("fold", "import", function(cm, start) {
+  function hasImport(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type != "keyword" || start.string != "import") return null;
+    // Now find closing semicolon, return its position
+    for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {
+      var text = cm.getLine(i), semi = text.indexOf(";");
+      if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};
+    }
+  }
+
+  var startLine = start.line, has = hasImport(startLine), prev;
+  if (!has || hasImport(startLine - 1) || ((prev = hasImport(startLine - 2)) && prev.end.line == startLine - 1))
+    return null;
+  for (var end = has.end;;) {
+    var next = hasImport(end.line + 1);
+    if (next == null) break;
+    end = next.end;
+  }
+  return {from: cm.clipPos(CodeMirror.Pos(startLine, has.startCh + 1)), to: end};
+});
+
+CodeMirror.registerHelper("fold", "include", function(cm, start) {
+  function hasInclude(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;
+  }
+
+  var startLine = start.line, has = hasInclude(startLine);
+  if (has == null || hasInclude(startLine - 1) != null) return null;
+  for (var end = startLine;;) {
+    var next = hasInclude(end + 1);
+    if (next == null) break;
+    ++end;
+  }
+  return {from: CodeMirror.Pos(startLine, has + 1),
+          to: cm.clipPos(CodeMirror.Pos(end))};
+});
+
+});
diff --git a/htdocs/Libs/Codemirror/closebrackets.js b/htdocs/Libs/Codemirror/closebrackets.js
new file mode 100644
index 0000000..4415c39
--- /dev/null
+++ b/htdocs/Libs/Codemirror/closebrackets.js
@@ -0,0 +1,191 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var defaults = {
+    pairs: "()[]{}''\"\"",
+    closeBefore: ")]}'\":;>",
+    triples: "",
+    explode: "[]{}"
+  };
+
+  var Pos = CodeMirror.Pos;
+
+  CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.removeKeyMap(keyMap);
+      cm.state.closeBrackets = null;
+    }
+    if (val) {
+      ensureBound(getOption(val, "pairs"))
+      cm.state.closeBrackets = val;
+      cm.addKeyMap(keyMap);
+    }
+  });
+
+  function getOption(conf, name) {
+    if (name == "pairs" && typeof conf == "string") return conf;
+    if (typeof conf == "object" && conf[name] != null) return conf[name];
+    return defaults[name];
+  }
+
+  var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
+  function ensureBound(chars) {
+    for (var i = 0; i < chars.length; i++) {
+      var ch = chars.charAt(i), key = "'" + ch + "'"
+      if (!keyMap[key]) keyMap[key] = handler(ch)
+    }
+  }
+  ensureBound(defaults.pairs + "`")
+
+  function handler(ch) {
+    return function(cm) { return handleChar(cm, ch); };
+  }
+
+  function getConfig(cm) {
+    var deflt = cm.state.closeBrackets;
+    if (!deflt || deflt.override) return deflt;
+    var mode = cm.getModeAt(cm.getCursor());
+    return mode.closeBrackets || deflt;
+  }
+
+  function handleBackspace(cm) {
+    var conf = getConfig(cm);
+    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var pairs = getOption(conf, "pairs");
+    var ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var around = charsAround(cm, ranges[i].head);
+      if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
+    }
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var cur = ranges[i].head;
+      cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
+    }
+  }
+
+  function handleEnter(cm) {
+    var conf = getConfig(cm);
+    var explode = conf && getOption(conf, "explode");
+    if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var around = charsAround(cm, ranges[i].head);
+      if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
+    }
+    cm.operation(function() {
+      var linesep = cm.lineSeparator() || "\n";
+      cm.replaceSelection(linesep + linesep, null);
+      cm.execCommand("goCharLeft");
+      ranges = cm.listSelections();
+      for (var i = 0; i < ranges.length; i++) {
+        var line = ranges[i].head.line;
+        cm.indentLine(line, null, true);
+        cm.indentLine(line + 1, null, true);
+      }
+    });
+  }
+
+  function contractSelection(sel) {
+    var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
+    return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
+            head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
+  }
+
+  function handleChar(cm, ch) {
+    var conf = getConfig(cm);
+    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var pairs = getOption(conf, "pairs");
+    var pos = pairs.indexOf(ch);
+    if (pos == -1) return CodeMirror.Pass;
+
+    var closeBefore = getOption(conf,"closeBefore");
+
+    var triples = getOption(conf, "triples");
+
+    var identical = pairs.charAt(pos + 1) == ch;
+    var ranges = cm.listSelections();
+    var opening = pos % 2 == 0;
+
+    var type;
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i], cur = range.head, curType;
+      var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
+      if (opening && !range.empty()) {
+        curType = "surround";
+      } else if ((identical || !opening) && next == ch) {
+        if (identical && stringStartsAfter(cm, cur))
+          curType = "both";
+        else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
+          curType = "skipThree";
+        else
+          curType = "skip";
+      } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
+                 cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) {
+        if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass;
+        curType = "addFour";
+      } else if (identical) {
+        var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
+        if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
+        else return CodeMirror.Pass;
+      } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
+        curType = "both";
+      } else {
+        return CodeMirror.Pass;
+      }
+      if (!type) type = curType;
+      else if (type != curType) return CodeMirror.Pass;
+    }
+
+    var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
+    var right = pos % 2 ? ch : pairs.charAt(pos + 1);
+    cm.operation(function() {
+      if (type == "skip") {
+        cm.execCommand("goCharRight");
+      } else if (type == "skipThree") {
+        for (var i = 0; i < 3; i++)
+          cm.execCommand("goCharRight");
+      } else if (type == "surround") {
+        var sels = cm.getSelections();
+        for (var i = 0; i < sels.length; i++)
+          sels[i] = left + sels[i] + right;
+        cm.replaceSelections(sels, "around");
+        sels = cm.listSelections().slice();
+        for (var i = 0; i < sels.length; i++)
+          sels[i] = contractSelection(sels[i]);
+        cm.setSelections(sels);
+      } else if (type == "both") {
+        cm.replaceSelection(left + right, null);
+        cm.triggerElectric(left + right);
+        cm.execCommand("goCharLeft");
+      } else if (type == "addFour") {
+        cm.replaceSelection(left + left + left + left, "before");
+        cm.execCommand("goCharRight");
+      }
+    });
+  }
+
+  function charsAround(cm, pos) {
+    var str = cm.getRange(Pos(pos.line, pos.ch - 1),
+                          Pos(pos.line, pos.ch + 1));
+    return str.length == 2 ? str : null;
+  }
+
+  function stringStartsAfter(cm, pos) {
+    var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
+    return /\bstring/.test(token.type) && token.start == pos.ch &&
+      (pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos)))
+  }
+});
diff --git a/htdocs/Libs/Codemirror/closetag.js b/htdocs/Libs/Codemirror/closetag.js
new file mode 100644
index 0000000..7c22a50
--- /dev/null
+++ b/htdocs/Libs/Codemirror/closetag.js
@@ -0,0 +1,185 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+/**
+ * Tag-closer extension for CodeMirror.
+ *
+ * This extension adds an "autoCloseTags" option that can be set to
+ * either true to get the default behavior, or an object to further
+ * configure its behavior.
+ *
+ * These are supported options:
+ *
+ * `whenClosing` (default true)
+ *   Whether to autoclose when the '/' of a closing tag is typed.
+ * `whenOpening` (default true)
+ *   Whether to autoclose the tag when the final '>' of an opening
+ *   tag is typed.
+ * `dontCloseTags` (default is empty tags for HTML, none for XML)
+ *   An array of tag names that should not be autoclosed.
+ * `indentTags` (default is block tags for HTML, none for XML)
+ *   An array of tag names that should, when opened, cause a
+ *   blank line to be added inside the tag, and the blank line and
+ *   closing line to be indented.
+ * `emptyTags` (default is none)
+ *   An array of XML tag names that should be autoclosed with '/>'.
+ *
+ * See demos/closetag.html for a usage example.
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../fold/xml-fold"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  CodeMirror.defineOption("autoCloseTags", false, function(cm, val, old) {
+    if (old != CodeMirror.Init && old)
+      cm.removeKeyMap("autoCloseTags");
+    if (!val) return;
+    var map = {name: "autoCloseTags"};
+    if (typeof val != "object" || val.whenClosing !== false)
+      map["'/'"] = function(cm) { return autoCloseSlash(cm); };
+    if (typeof val != "object" || val.whenOpening !== false)
+      map["'>'"] = function(cm) { return autoCloseGT(cm); };
+    cm.addKeyMap(map);
+  });
+
+  var htmlDontClose = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param",
+                       "source", "track", "wbr"];
+  var htmlIndent = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4",
+                    "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];
+
+  function autoCloseGT(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    var ranges = cm.listSelections(), replacements = [];
+    var opt = cm.getOption("autoCloseTags");
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+      var tagInfo = inner.mode.xmlCurrentTag && inner.mode.xmlCurrentTag(state)
+      var tagName = tagInfo && tagInfo.name
+      if (!tagName) return CodeMirror.Pass
+
+      var html = inner.mode.configuration == "html";
+      var dontCloseTags = (typeof opt == "object" && opt.dontCloseTags) || (html && htmlDontClose);
+      var indentTags = (typeof opt == "object" && opt.indentTags) || (html && htmlIndent);
+
+      if (tok.end > pos.ch) tagName = tagName.slice(0, tagName.length - tok.end + pos.ch);
+      var lowerTagName = tagName.toLowerCase();
+      // Don't process the '>' at the end of an end-tag or self-closing tag
+      if (!tagName ||
+          tok.type == "string" && (tok.end != pos.ch || !/[\"\']/.test(tok.string.charAt(tok.string.length - 1)) || tok.string.length == 1) ||
+          tok.type == "tag" && tagInfo.close ||
+          tok.string.indexOf("/") == (pos.ch - tok.start - 1) || // match something like <someTagName />
+          dontCloseTags && indexOf(dontCloseTags, lowerTagName) > -1 ||
+          closingTagExists(cm, inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state) || [], tagName, pos, true))
+        return CodeMirror.Pass;
+
+      var emptyTags = typeof opt == "object" && opt.emptyTags;
+      if (emptyTags && indexOf(emptyTags, tagName) > -1) {
+        replacements[i] = { text: "/>", newPos: CodeMirror.Pos(pos.line, pos.ch + 2) };
+        continue;
+      }
+
+      var indent = indentTags && indexOf(indentTags, lowerTagName) > -1;
+      replacements[i] = {indent: indent,
+                         text: ">" + (indent ? "\n\n" : "") + "</" + tagName + ">",
+                         newPos: indent ? CodeMirror.Pos(pos.line + 1, 0) : CodeMirror.Pos(pos.line, pos.ch + 1)};
+    }
+
+    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnAutoClose);
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var info = replacements[i];
+      cm.replaceRange(info.text, ranges[i].head, ranges[i].anchor, "+insert");
+      var sel = cm.listSelections().slice(0);
+      sel[i] = {head: info.newPos, anchor: info.newPos};
+      cm.setSelections(sel);
+      if (!dontIndentOnAutoClose && info.indent) {
+        cm.indentLine(info.newPos.line, null, true);
+        cm.indentLine(info.newPos.line + 1, null, true);
+      }
+    }
+  }
+
+  function autoCloseCurrent(cm, typingSlash) {
+    var ranges = cm.listSelections(), replacements = [];
+    var head = typingSlash ? "/" : "</";
+    var opt = cm.getOption("autoCloseTags");
+    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnSlash);
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+      if (typingSlash && (tok.type == "string" || tok.string.charAt(0) != "<" ||
+                          tok.start != pos.ch - 1))
+        return CodeMirror.Pass;
+      // Kludge to get around the fact that we are not in XML mode
+      // when completing in JS/CSS snippet in htmlmixed mode. Does not
+      // work for other XML embedded languages (there is no general
+      // way to go from a mixed mode to its current XML state).
+      var replacement, mixed = inner.mode.name != "xml" && cm.getMode().name == "htmlmixed"
+      if (mixed && inner.mode.name == "javascript") {
+        replacement = head + "script";
+      } else if (mixed && inner.mode.name == "css") {
+        replacement = head + "style";
+      } else {
+        var context = inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state)
+        var top = context.length ? context[context.length - 1] : ""
+        if (!context || (context.length && closingTagExists(cm, context, top, pos)))
+          return CodeMirror.Pass;
+        replacement = head + top
+      }
+      if (cm.getLine(pos.line).charAt(tok.end) != ">") replacement += ">";
+      replacements[i] = replacement;
+    }
+    cm.replaceSelections(replacements);
+    ranges = cm.listSelections();
+    if (!dontIndentOnAutoClose) {
+        for (var i = 0; i < ranges.length; i++)
+            if (i == ranges.length - 1 || ranges[i].head.line < ranges[i + 1].head.line)
+                cm.indentLine(ranges[i].head.line);
+    }
+  }
+
+  function autoCloseSlash(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    return autoCloseCurrent(cm, true);
+  }
+
+  CodeMirror.commands.closeTag = function(cm) { return autoCloseCurrent(cm); };
+
+  function indexOf(collection, elt) {
+    if (collection.indexOf) return collection.indexOf(elt);
+    for (var i = 0, e = collection.length; i < e; ++i)
+      if (collection[i] == elt) return i;
+    return -1;
+  }
+
+  // If xml-fold is loaded, we use its functionality to try and verify
+  // whether a given tag is actually unclosed.
+  function closingTagExists(cm, context, tagName, pos, newTag) {
+    if (!CodeMirror.scanForClosingTag) return false;
+    var end = Math.min(cm.lastLine() + 1, pos.line + 500);
+    var nextClose = CodeMirror.scanForClosingTag(cm, pos, null, end);
+    if (!nextClose || nextClose.tag != tagName) return false;
+    // If the immediate wrapping context contains onCx instances of
+    // the same tag, a closing tag only exists if there are at least
+    // that many closing tags of that type following.
+    var onCx = newTag ? 1 : 0
+    for (var i = context.length - 1; i >= 0; i--) {
+      if (context[i] == tagName) ++onCx
+      else break
+    }
+    pos = nextClose.to;
+    for (var i = 1; i < onCx; i++) {
+      var next = CodeMirror.scanForClosingTag(cm, pos, null, end);
+      if (!next || next.tag != tagName) return false;
+      pos = next.to;
+    }
+    return true;
+  }
+});
diff --git a/htdocs/Libs/Codemirror/codemirror.css b/htdocs/Libs/Codemirror/codemirror.css
index 49ec873..f1aa66d 100644
--- a/htdocs/Libs/Codemirror/codemirror.css
+++ b/htdocs/Libs/Codemirror/codemirror.css
@@ -5,6 +5,7 @@
   font-family: monospace;
   height: 300px;
   color: black;
+  direction: ltr;
 }
 
 /* PADDING */
@@ -12,7 +13,8 @@
 .CodeMirror-lines {
   padding: 4px 0; /* Vertical padding around content */
 }
-.CodeMirror pre {
+.CodeMirror pre.CodeMirror-line,
+.CodeMirror pre.CodeMirror-line-like {
   padding: 0 4px; /* Horizontal padding of content */
 }
 
@@ -52,13 +54,18 @@
 }
 .cm-fat-cursor .CodeMirror-cursor {
   width: auto;
-  border: 0;
+  border: 0 !important;
   background: #7e7;
 }
 .cm-fat-cursor div.CodeMirror-cursors {
   z-index: 1;
 }
-
+.cm-fat-cursor-mark {
+  background-color: rgba(20, 255, 20, 0.5);
+  -webkit-animation: blink 1.06s steps(1) infinite;
+  -moz-animation: blink 1.06s steps(1) infinite;
+  animation: blink 1.06s steps(1) infinite;
+}
 .cm-animate-fat-cursor {
   width: auto;
   border: 0;
@@ -88,8 +95,14 @@
 
 .cm-tab { display: inline-block; text-decoration: inherit; }
 
+.CodeMirror-rulers {
+  position: absolute;
+  left: 0; right: 0; top: -50px; bottom: 0;
+  overflow: hidden;
+}
 .CodeMirror-ruler {
   border-left: 1px solid #ccc;
+  top: 0; bottom: 0;
   position: absolute;
 }
 
@@ -113,7 +126,7 @@
 .cm-s-default .cm-property,
 .cm-s-default .cm-operator {}
 .cm-s-default .cm-variable-2 {color: #05a;}
-.cm-s-default .cm-variable-3 {color: #085;}
+.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
 .cm-s-default .cm-comment {color: #a50;}
 .cm-s-default .cm-string {color: #a11;}
 .cm-s-default .cm-string-2 {color: #f50;}
@@ -133,8 +146,8 @@
 
 /* Default styles for common addons */
 
-div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
-div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
 .CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
 .CodeMirror-activeline-background {background: #e8f2ff;}
 
@@ -151,26 +164,27 @@
 
 .CodeMirror-scroll {
   overflow: scroll !important; /* Things will break if this is overridden */
-  /* 30px is the magic margin used to hide the element's real scrollbars */
+  /* 50px is the magic margin used to hide the element's real scrollbars */
   /* See overflow: hidden in .CodeMirror */
-  margin-bottom: -30px; margin-right: -30px;
-  padding-bottom: 30px;
+  margin-bottom: -50px; margin-right: -50px;
+  padding-bottom: 50px;
   height: 100%;
   outline: none; /* Prevent dragging from highlighting the element */
   position: relative;
 }
 .CodeMirror-sizer {
   position: relative;
-  border-right: 30px solid transparent;
+  border-right: 50px solid transparent;
 }
 
 /* The fake, visible scrollbars. Used to force redraw during scrolling
-   before actuall scrolling happens, thus preventing shaking and
+   before actual scrolling happens, thus preventing shaking and
    flickering artifacts. */
 .CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
   position: absolute;
   z-index: 6;
   display: none;
+  outline: none;
 }
 .CodeMirror-vscrollbar {
   right: 0; top: 0;
@@ -191,16 +205,15 @@
 
 .CodeMirror-gutters {
   position: absolute; left: 0; top: 0;
+  min-height: 100%;
   z-index: 3;
 }
 .CodeMirror-gutter {
   white-space: normal;
   height: 100%;
   display: inline-block;
-  margin-bottom: -30px;
-  /* Hack to make IE7 behave */
-  *zoom:1;
-  *display:inline;
+  vertical-align: top;
+  margin-bottom: -50px;
 }
 .CodeMirror-gutter-wrapper {
   position: absolute;
@@ -218,17 +231,15 @@
   cursor: default;
   z-index: 4;
 }
-.CodeMirror-gutter-wrapper {
-  -webkit-user-select: none;
-  -moz-user-select: none;
-  user-select: none;
-}
+.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
+.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
 
 .CodeMirror-lines {
   cursor: text;
   min-height: 1px; /* prevents collapsing before first draw */
 }
-.CodeMirror pre {
+.CodeMirror pre.CodeMirror-line,
+.CodeMirror pre.CodeMirror-line-like {
   /* Reset some styles that the rest of the page might have set */
   -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
   border-width: 0;
@@ -244,8 +255,11 @@
   position: relative;
   overflow: visible;
   -webkit-tap-highlight-color: transparent;
+  -webkit-font-variant-ligatures: contextual;
+  font-variant-ligatures: contextual;
 }
-.CodeMirror-wrap pre {
+.CodeMirror-wrap pre.CodeMirror-line,
+.CodeMirror-wrap pre.CodeMirror-line-like {
   word-wrap: break-word;
   white-space: pre-wrap;
   word-break: normal;
@@ -260,11 +274,13 @@
 .CodeMirror-linewidget {
   position: relative;
   z-index: 2;
-  overflow: auto;
+  padding: 0.1px; /* Force widget margins to stay inside of the container */
 }
 
 .CodeMirror-widget {}
 
+.CodeMirror-rtl pre { direction: rtl; }
+
 .CodeMirror-code {
   outline: none;
 }
@@ -287,7 +303,10 @@
   visibility: hidden;
 }
 
-.CodeMirror-cursor { position: absolute; }
+.CodeMirror-cursor {
+  position: absolute;
+  pointer-events: none;
+}
 .CodeMirror-measure pre { position: static; }
 
 div.CodeMirror-cursors {
@@ -310,13 +329,10 @@
 .CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
 
 .cm-searching {
-  background: #ffa;
-  background: rgba(255, 255, 0, .4);
+  background-color: #ffa;
+  background-color: rgba(255, 255, 0, .4);
 }
 
-/* IE7 hack to prevent it from returning funny offsetTops on the spans */
-.CodeMirror span { *vertical-align: text-bottom; }
-
 /* Used to force a border model for a node */
 .cm-force-border { padding-right: .1px; }
 
diff --git a/htdocs/Libs/Codemirror/codemirror.custom.js b/htdocs/Libs/Codemirror/codemirror.custom.js
deleted file mode 100644
index 59ec31c..0000000
--- a/htdocs/Libs/Codemirror/codemirror.custom.js
+++ /dev/null
@@ -1,9544 +0,0 @@
-/* CodeMirror - Minified & Bundled
-   Generated on 2015. 08. 31. with http://codemirror.net/doc/compress.html
-   Version: HEAD
-
-   CodeMirror Library:
-   - codemirror.js
-   Modes:
-   - css.js
-   - htmlmixed.js
-   - javascript.js
-   - perl.js
-   - python.js
-   - shell.js
-   - xml.js
-   Add-ons:
-   - active-line.js
-   - brace-fold.js
-   - closebrackets.js
-   - closetag.js
-   - foldcode.js
-   - foldgutter.js
-   - indent-fold.js
-   - match-highlighter.js
-   - matchbrackets.js
-   - matchtags.js
-   - search.js
-   - xml-fold.js
- */
- 
-! function (a) {
-    if ("object" == typeof exports && "object" == typeof module) module.exports = a();
-    else {
-        if ("function" == typeof define && define.amd) return define([], a);
-        this.CodeMirror = a()
-    }
-}(function () {
-    "use strict";
-
-    function v(a, b) {
-        if (!(this instanceof v)) return new v(a, b);
-        this.options = b = b ? hg(b) : {}, hg(Ad, b, !1), I(b);
-        var c = b.value;
-        "string" == typeof c && (c = new af(c, b.mode, null, b.lineSeparator)), this.doc = c;
-        var g = new v.inputStyles[b.inputStyle](this),
-            h = this.display = new w(a, c, g);
-        h.wrapper.CodeMirror = this, E(this), C(this), b.lineWrapping && (this.display.wrapper.className += " CodeMirror-wrap"), b.autofocus && !n && h.input.focus(), M(this), this.state = {
-            keyMaps: [],
-            overlays: [],
-            modeGen: 0,
-            overwrite: !1,
-            delayingBlurEvent: !1,
-            focused: !1,
-            suppressEdits: !1,
-            pasteIncoming: !1,
-            cutIncoming: !1,
-            selectingText: !1,
-            draggingText: !1,
-            highlight: new Yf,
-            keySeq: null,
-            specialChars: null
-        };
-        var i = this;
-        d && 11 > e && setTimeout(function () {
-            i.display.input.reset(!0)
-        }, 20), pc(this), Bg(), Vb(this), this.curOp.forceUpdate = !0, ef(this, c), b.autofocus && !n || i.hasFocus() ? setTimeout(ig(Zc, this), 20) : $c(this);
-        for (var j in Bd) Bd.hasOwnProperty(j) && Bd[j](this, b[j], Dd);
-        R(this), b.finishInit && b.finishInit(this);
-        for (var k = 0; k < Hd.length; ++k) Hd[k](this);
-        Xb(this), f && b.lineWrapping && "optimizelegibility" == getComputedStyle(h.lineDiv)
-            .textRendering && (h.lineDiv.style.textRendering = "auto")
-    }
-
-    function w(b, c, g) {
-        var h = this;
-        this.input = g, h.scrollbarFiller = pg("div", null, "CodeMirror-scrollbar-filler"), h.scrollbarFiller.setAttribute("cm-not-content", "true"), h.gutterFiller = pg("div", null, "CodeMirror-gutter-filler"), h.gutterFiller.setAttribute("cm-not-content", "true"), h.lineDiv = pg("div", null, "CodeMirror-code"), h.selectionDiv = pg("div", null, null, "position: relative; z-index: 1"), h.cursorDiv = pg("div", null, "CodeMirror-cursors"), h.measure = pg("div", null, "CodeMirror-measure"), h.lineMeasure = pg("div", null, "CodeMirror-measure"), h.lineSpace = pg("div", [h.measure, h.lineMeasure, h.selectionDiv, h.cursorDiv, h.lineDiv], null, "position: relative; outline: none"), h.mover = pg("div", [pg("div", [h.lineSpace], "CodeMirror-lines")], null, "position: relative"), h.sizer = pg("div", [h.mover], "CodeMirror-sizer"), h.sizerWidth = null, h.heightForcer = pg("div", null, null, "position: absolute; height: " + Tf + "px; width: 1px;"), h.gutters = pg("div", null, "CodeMirror-gutters"), h.lineGutter = null, h.scroller = pg("div", [h.sizer, h.heightForcer, h.gutters], "CodeMirror-scroll"), h.scroller.setAttribute("tabIndex", "-1"), h.wrapper = pg("div", [h.scrollbarFiller, h.gutterFiller, h.scroller], "CodeMirror"), d && 8 > e && (h.gutters.style.zIndex = -1, h.scroller.style.paddingRight = 0), f || a && n || (h.scroller.draggable = !0), b && (b.appendChild ? b.appendChild(h.wrapper) : b(h.wrapper)), h.viewFrom = h.viewTo = c.first, h.reportedViewFrom = h.reportedViewTo = c.first, h.view = [], h.renderedView = null, h.externalMeasured = null, h.viewOffset = 0, h.lastWrapHeight = h.lastWrapWidth = 0, h.updateLineNumbers = null, h.nativeBarWidth = h.barHeight = h.barWidth = 0, h.scrollbarsClipped = !1, h.lineNumWidth = h.lineNumInnerWidth = h.lineNumChars = null, h.alignWidgets = !1, h.cachedCharWidth = h.cachedTextHeight = h.cachedPaddingH = null, h.maxLine = null, h.maxLineLength = 0, h.maxLineChanged = !1, h.wheelDX = h.wheelDY = h.wheelStartX = h.wheelStartY = null, h.shift = !1, h.selForContextMenu = null, h.activeTouch = null, g.init(h)
-    }
-
-    function x(a) {
-        a.doc.mode = v.getMode(a.options, a.doc.modeOption), y(a)
-    }
-
-    function y(a) {
-        a.doc.iter(function (a) {
-            a.stateAfter && (a.stateAfter = null), a.styles && (a.styles = null)
-        }), a.doc.frontier = a.doc.first, ib(a, 100), a.state.modeGen++, a.curOp && ic(a)
-    }
-
-    function z(a) {
-        a.options.lineWrapping ? (xg(a.display.wrapper, "CodeMirror-wrap"), a.display.sizer.style.minWidth = "", a.display.sizerWidth = null) : (wg(a.display.wrapper, "CodeMirror-wrap"), H(a)), B(a), ic(a), Fb(a), setTimeout(function () {
-            N(a)
-        }, 100)
-    }
-
-    function A(a) {
-        var b = Rb(a.display),
-            c = a.options.lineWrapping,
-            d = c && Math.max(5, a.display.scroller.clientWidth / Sb(a.display) - 3);
-        return function (e) {
-            if (we(a.doc, e)) return 0;
-            var f = 0;
-            if (e.widgets)
-                for (var g = 0; g < e.widgets.length; g++) e.widgets[g].height && (f += e.widgets[g].height);
-            return c ? f + (Math.ceil(e.text.length / d) || 1) * b : f + b
-        }
-    }
-
-    function B(a) {
-        var b = a.doc,
-            c = A(a);
-        b.iter(function (a) {
-            var b = c(a);
-            b != a.height && jf(a, b)
-        })
-    }
-
-    function C(a) {
-        a.display.wrapper.className = a.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + a.options.theme.replace(/(^|\s)\s*/g, " cm-s-"), Fb(a)
-    }
-
-    function D(a) {
-        E(a), ic(a), setTimeout(function () {
-            Q(a)
-        }, 20)
-    }
-
-    function E(a) {
-        var b = a.display.gutters,
-            c = a.options.gutters;
-        rg(b);
-        for (var d = 0; d < c.length; ++d) {
-            var e = c[d],
-                f = b.appendChild(pg("div", null, "CodeMirror-gutter " + e));
-            "CodeMirror-linenumbers" == e && (a.display.lineGutter = f, f.style.width = (a.display.lineNumWidth || 1) + "px")
-        }
-        b.style.display = d ? "" : "none", F(a)
-    }
-
-    function F(a) {
-        var b = a.display.gutters.offsetWidth;
-        a.display.sizer.style.marginLeft = b + "px"
-    }
-
-    function G(a) {
-        if (0 == a.height) return 0;
-        for (var c, b = a.text.length, d = a; c = pe(d);) {
-            var e = c.find(0, !0);
-            d = e.from.line, b += e.from.ch - e.to.ch
-        }
-        for (d = a; c = qe(d);) {
-            var e = c.find(0, !0);
-            b -= d.text.length - e.from.ch, d = e.to.line, b += d.text.length - e.to.ch
-        }
-        return b
-    }
-
-    function H(a) {
-        var b = a.display,
-            c = a.doc;
-        b.maxLine = ff(c, c.first), b.maxLineLength = G(b.maxLine), b.maxLineChanged = !0, c.iter(function (a) {
-            var c = G(a);
-            c > b.maxLineLength && (b.maxLineLength = c, b.maxLine = a)
-        })
-    }
-
-    function I(a) {
-        var b = dg(a.gutters, "CodeMirror-linenumbers"); - 1 == b && a.lineNumbers ? a.gutters = a.gutters.concat(["CodeMirror-linenumbers"]) : b > -1 && !a.lineNumbers && (a.gutters = a.gutters.slice(0), a.gutters.splice(b, 1))
-    }
-
-    function J(a) {
-        var b = a.display,
-            c = b.gutters.offsetWidth,
-            d = Math.round(a.doc.height + nb(a.display));
-        return {
-            clientHeight: b.scroller.clientHeight,
-            viewHeight: b.wrapper.clientHeight,
-            scrollWidth: b.scroller.scrollWidth,
-            clientWidth: b.scroller.clientWidth,
-            viewWidth: b.wrapper.clientWidth,
-            barLeft: a.options.fixedGutter ? c : 0,
-            docHeight: d,
-            scrollHeight: d + pb(a) + b.barHeight,
-            nativeBarWidth: b.nativeBarWidth,
-            gutterWidth: c
-        }
-    }
-
-    function K(a, b, c) {
-        this.cm = c;
-        var f = this.vert = pg("div", [pg("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"),
-            g = this.horiz = pg("div", [pg("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
-        a(f), a(g), Jf(f, "scroll", function () {
-            f.clientHeight && b(f.scrollTop, "vertical")
-        }), Jf(g, "scroll", function () {
-            g.clientWidth && b(g.scrollLeft, "horizontal")
-        }), this.checkedOverlay = !1, d && 8 > e && (this.horiz.style.minHeight = this.vert.style.minWidth = "18px")
-    }
-
-    function L() {}
-
-    function M(a) {
-        a.display.scrollbars && (a.display.scrollbars.clear(), a.display.scrollbars.addClass && wg(a.display.wrapper, a.display.scrollbars.addClass)), a.display.scrollbars = new v.scrollbarModel[a.options.scrollbarStyle](function (b) {
-            a.display.wrapper.insertBefore(b, a.display.scrollbarFiller), Jf(b, "mousedown", function () {
-                a.state.focused && setTimeout(function () {
-                    a.display.input.focus()
-                }, 0)
-            }), b.setAttribute("cm-not-content", "true")
-        }, function (b, c) {
-            "horizontal" == c ? Ic(a, b) : Hc(a, b)
-        }, a), a.display.scrollbars.addClass && xg(a.display.wrapper, a.display.scrollbars.addClass)
-    }
-
-    function N(a, b) {
-        b || (b = J(a));
-        var c = a.display.barWidth,
-            d = a.display.barHeight;
-        O(a, b);
-        for (var e = 0; 4 > e && c != a.display.barWidth || d != a.display.barHeight; e++) c != a.display.barWidth && a.options.lineWrapping && $(a), O(a, J(a)), c = a.display.barWidth, d = a.display.barHeight
-    }
-
-    function O(a, b) {
-        var c = a.display,
-            d = c.scrollbars.update(b);
-        c.sizer.style.paddingRight = (c.barWidth = d.right) + "px", c.sizer.style.paddingBottom = (c.barHeight = d.bottom) + "px", d.right && d.bottom ? (c.scrollbarFiller.style.display = "block", c.scrollbarFiller.style.height = d.bottom + "px", c.scrollbarFiller.style.width = d.right + "px") : c.scrollbarFiller.style.display = "", d.bottom && a.options.coverGutterNextToScrollbar && a.options.fixedGutter ? (c.gutterFiller.style.display = "block", c.gutterFiller.style.height = d.bottom + "px", c.gutterFiller.style.width = b.gutterWidth + "px") : c.gutterFiller.style.display = ""
-    }
-
-    function P(a, b, c) {
-        var d = c && null != c.top ? Math.max(0, c.top) : a.scroller.scrollTop;
-        d = Math.floor(d - mb(a));
-        var e = c && null != c.bottom ? c.bottom : d + a.wrapper.clientHeight,
-            f = lf(b, d),
-            g = lf(b, e);
-        if (c && c.ensure) {
-            var h = c.ensure.from.line,
-                i = c.ensure.to.line;
-            f > h ? (f = h, g = lf(b, mf(ff(b, h)) + a.wrapper.clientHeight)) : Math.min(i, b.lastLine()) >= g && (f = lf(b, mf(ff(b, i)) - a.wrapper.clientHeight), g = i)
-        }
-        return {
-            from: f,
-            to: Math.max(g, f + 1)
-        }
-    }
-
-    function Q(a) {
-        var b = a.display,
-            c = b.view;
-        if (b.alignWidgets || b.gutters.firstChild && a.options.fixedGutter) {
-            for (var d = T(b) - b.scroller.scrollLeft + a.doc.scrollLeft, e = b.gutters.offsetWidth, f = d + "px", g = 0; g < c.length; g++)
-                if (!c[g].hidden) {
-                    a.options.fixedGutter && c[g].gutter && (c[g].gutter.style.left = f);
-                    var h = c[g].alignable;
-                    if (h)
-                        for (var i = 0; i < h.length; i++) h[i].style.left = f
-                }
-            a.options.fixedGutter && (b.gutters.style.left = d + e + "px")
-        }
-    }
-
-    function R(a) {
-        if (!a.options.lineNumbers) return !1;
-        var b = a.doc,
-            c = S(a.options, b.first + b.size - 1),
-            d = a.display;
-        if (c.length != d.lineNumChars) {
-            var e = d.measure.appendChild(pg("div", [pg("div", c)], "CodeMirror-linenumber CodeMirror-gutter-elt")),
-                f = e.firstChild.offsetWidth,
-                g = e.offsetWidth - f;
-            return d.lineGutter.style.width = "", d.lineNumInnerWidth = Math.max(f, d.lineGutter.offsetWidth - g) + 1, d.lineNumWidth = d.lineNumInnerWidth + g, d.lineNumChars = d.lineNumInnerWidth ? c.length : -1, d.lineGutter.style.width = d.lineNumWidth + "px", F(a), !0
-        }
-        return !1
-    }
-
-    function S(a, b) {
-        return String(a.lineNumberFormatter(b + a.firstLineNumber))
-    }
-
-    function T(a) {
-        return a.scroller.getBoundingClientRect()
-            .left - a.sizer.getBoundingClientRect()
-            .left
-    }
-
-    function U(a, b, c) {
-        var d = a.display;
-        this.viewport = b, this.visible = P(d, a.doc, b), this.editorIsHidden = !d.wrapper.offsetWidth, this.wrapperHeight = d.wrapper.clientHeight, this.wrapperWidth = d.wrapper.clientWidth, this.oldDisplayWidth = qb(a), this.force = c, this.dims = aa(a), this.events = []
-    }
-
-    function V(a) {
-        var b = a.display;
-        !b.scrollbarsClipped && b.scroller.offsetWidth && (b.nativeBarWidth = b.scroller.offsetWidth - b.scroller.clientWidth, b.heightForcer.style.height = pb(a) + "px", b.sizer.style.marginBottom = -b.nativeBarWidth + "px", b.sizer.style.borderRightWidth = pb(a) + "px", b.scrollbarsClipped = !0)
-    }
-
-    function W(a, b) {
-        var c = a.display,
-            d = a.doc;
-        if (b.editorIsHidden) return kc(a), !1;
-        if (!b.force && b.visible.from >= c.viewFrom && b.visible.to <= c.viewTo && (null == c.updateLineNumbers || c.updateLineNumbers >= c.viewTo) && c.renderedView == c.view && 0 == oc(a)) return !1;
-        R(a) && (kc(a), b.dims = aa(a));
-        var e = d.first + d.size,
-            f = Math.max(b.visible.from - a.options.viewportMargin, d.first),
-            g = Math.min(e, b.visible.to + a.options.viewportMargin);
-        c.viewFrom < f && f - c.viewFrom < 20 && (f = Math.max(d.first, c.viewFrom)), c.viewTo > g && c.viewTo - g < 20 && (g = Math.min(e, c.viewTo)), u && (f = ue(a.doc, f), g = ve(a.doc, g));
-        var h = f != c.viewFrom || g != c.viewTo || c.lastWrapHeight != b.wrapperHeight || c.lastWrapWidth != b.wrapperWidth;
-        nc(a, f, g), c.viewOffset = mf(ff(a.doc, c.viewFrom)), a.display.mover.style.top = c.viewOffset + "px";
-        var i = oc(a);
-        if (!h && 0 == i && !b.force && c.renderedView == c.view && (null == c.updateLineNumbers || c.updateLineNumbers >= c.viewTo)) return !1;
-        var j = ug();
-        return i > 4 && (c.lineDiv.style.display = "none"), ba(a, c.updateLineNumbers, b.dims), i > 4 && (c.lineDiv.style.display = ""), c.renderedView = c.view, j && ug() != j && j.offsetHeight && j.focus(), rg(c.cursorDiv), rg(c.selectionDiv), c.gutters.style.height = c.sizer.style.minHeight = 0, h && (c.lastWrapHeight = b.wrapperHeight, c.lastWrapWidth = b.wrapperWidth, ib(a, 400)), c.updateLineNumbers = null, !0
-    }
-
-    function X(a, b) {
-        for (var c = b.viewport, d = !0;
-            (d && a.options.lineWrapping && b.oldDisplayWidth != qb(a) || (c && null != c.top && (c = {
-                top: Math.min(a.doc.height + nb(a.display) - rb(a), c.top)
-            }), b.visible = P(a.display, a.doc, c), !(b.visible.from >= a.display.viewFrom && b.visible.to <= a.display.viewTo))) && W(a, b); d = !1) {
-            $(a);
-            var e = J(a);
-            db(a), Z(a, e), N(a, e)
-        }
-        b.signal(a, "update", a), (a.display.viewFrom != a.display.reportedViewFrom || a.display.viewTo != a.display.reportedViewTo) && (b.signal(a, "viewportChange", a, a.display.viewFrom, a.display.viewTo), a.display.reportedViewFrom = a.display.viewFrom, a.display.reportedViewTo = a.display.viewTo)
-    }
-
-    function Y(a, b) {
-        var c = new U(a, b);
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-            $(a), X(a, c);
-            var d = J(a);
-            db(a), Z(a, d), N(a, d), c.finish()
-        }
-    }
-
-    function Z(a, b) {
-        a.display.sizer.style.minHeight = b.docHeight + "px";
-        var c = b.docHeight + a.display.barHeight;
-        a.display.heightForcer.style.top = c + "px", a.display.gutters.style.height = Math.max(c + pb(a), b.clientHeight) + "px"
-    }
-
-    function $(a) {
-        for (var b = a.display, c = b.lineDiv.offsetTop, f = 0; f < b.view.length; f++) {
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-                } else {
-                    var j = g.node.getBoundingClientRect();
-                    h = j.bottom - j.top
-                }
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-                    for (var l = 0; l < g.rest.length; l++) _(g.rest[l])
-            }
-        }
-    }
-
-    function _(a) {
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-            for (var b = 0; b < a.widgets.length; ++b) a.widgets[b].height = a.widgets[b].node.offsetHeight
-    }
-
-    function aa(a) {
-        for (var b = a.display, c = {}, d = {}, e = b.gutters.clientLeft, f = b.gutters.firstChild, g = 0; f; f = f.nextSibling, ++g) c[a.options.gutters[g]] = f.offsetLeft + f.clientLeft + e, d[a.options.gutters[g]] = f.clientWidth;
-        return {
-            fixedPos: T(b),
-            gutterTotalWidth: b.gutters.offsetWidth,
-            gutterLeft: c,
-            gutterWidth: d,
-            wrapperWidth: b.wrapper.clientWidth
-        }
-    }
-
-    function ba(a, b, c) {
-        function i(b) {
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-            return f && o && a.display.currentWheelTarget == b ? b.style.display = "none" : b.parentNode.removeChild(b), c
-        }
-        for (var d = a.display, e = a.options.lineNumbers, g = d.lineDiv, h = g.firstChild, j = d.view, k = d.viewFrom, l = 0; l < j.length; l++) {
-            var m = j[l];
-            if (m.hidden);
-            else if (m.node && m.node.parentNode == g) {
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-                var p = e && null != b && k >= b && m.lineNumber;
-                m.changes && (dg(m.changes, "gutter") > -1 && (p = !1), ca(a, m, k, c)), p && (rg(m.lineNumber), m.lineNumber.appendChild(document.createTextNode(S(a.options, k)))), h = m.node.nextSibling
-            } else {
-                var n = ka(a, m, k, c);
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-            }
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-
-    function ca(a, b, c, d) {
-        for (var e = 0; e < b.changes.length; e++) {
-            var f = b.changes[e];
-            "text" == f ? ga(a, b) : "gutter" == f ? ia(a, b, c, d) : "class" == f ? ha(b) : "widget" == f && ja(a, b, d)
-        }
-        b.changes = null
-    }
-
-    function da(a) {
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-    }
-
-    function ea(a) {
-        var b = a.bgClass ? a.bgClass + " " + (a.line.bgClass || "") : a.line.bgClass;
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-        else if (b) {
-            var c = da(a);
-            a.background = c.insertBefore(pg("div", null, b), c.firstChild)
-        }
-    }
-
-    function fa(a, b) {
-        var c = a.display.externalMeasured;
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-    }
-
-    function ga(a, b) {
-        var c = b.text.className,
-            d = fa(a, b);
-        b.text == b.node && (b.node = d.pre), b.text.parentNode.replaceChild(d.pre, b.text), b.text = d.pre, d.bgClass != b.bgClass || d.textClass != b.textClass ? (b.bgClass = d.bgClass, b.textClass = d.textClass, ha(b)) : c && (b.text.className = c)
-    }
-
-    function ha(a) {
-        ea(a), a.line.wrapClass ? da(a)
-            .className = a.line.wrapClass : a.node != a.text && (a.node.className = "");
-        var b = a.textClass ? a.textClass + " " + (a.line.textClass || "") : a.line.textClass;
-        a.text.className = b || ""
-    }
-
-    function ia(a, b, c, d) {
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-            var e = da(b);
-            b.gutterBackground = pg("div", null, "CodeMirror-gutter-background " + b.line.gutterClass, "left: " + (a.options.fixedGutter ? d.fixedPos : -d.gutterTotalWidth) + "px; width: " + d.gutterTotalWidth + "px"), e.insertBefore(b.gutterBackground, b.text)
-        }
-        var f = b.line.gutterMarkers;
-        if (a.options.lineNumbers || f) {
-            var e = da(b),
-                g = b.gutter = pg("div", null, "CodeMirror-gutter-wrapper", "left: " + (a.options.fixedGutter ? d.fixedPos : -d.gutterTotalWidth) + "px");
-            if (a.display.input.setUneditable(g), e.insertBefore(g, b.text), b.line.gutterClass && (g.className += " " + b.line.gutterClass), !a.options.lineNumbers || f && f["CodeMirror-linenumbers"] || (b.lineNumber = g.appendChild(pg("div", S(a.options, c), "CodeMirror-linenumber CodeMirror-gutter-elt", "left: " + d.gutterLeft["CodeMirror-linenumbers"] + "px; width: " + a.display.lineNumInnerWidth + "px"))), f)
-                for (var h = 0; h < a.options.gutters.length; ++h) {
-                    var i = a.options.gutters[h],
-                        j = f.hasOwnProperty(i) && f[i];
-                    j && g.appendChild(pg("div", [j], "CodeMirror-gutter-elt", "left: " + d.gutterLeft[i] + "px; width: " + d.gutterWidth[i] + "px"))
-                }
-        }
-    }
-
-    function ja(a, b, c) {
-        b.alignable && (b.alignable = null);
-        for (var e, d = b.node.firstChild; d; d = e) {
-            var e = d.nextSibling;
-            "CodeMirror-linewidget" == d.className && b.node.removeChild(d)
-        }
-        la(a, b, c)
-    }
-
-    function ka(a, b, c, d) {
-        var e = fa(a, b);
-        return b.text = b.node = e.pre, e.bgClass && (b.bgClass = e.bgClass), e.textClass && (b.textClass = e.textClass), ha(b), ia(a, b, c, d), la(a, b, d), b.node
-    }
-
-    function la(a, b, c) {
-        if (ma(a, b.line, b, c, !0), b.rest)
-            for (var d = 0; d < b.rest.length; d++) ma(a, b.rest[d], b, c, !1)
-    }
-
-    function ma(a, b, c, d, e) {
-        if (b.widgets)
-            for (var f = da(c), g = 0, h = b.widgets; g < h.length; ++g) {
-                var i = h[g],
-                    j = pg("div", [i.node], "CodeMirror-linewidget");
-                i.handleMouseEvents || j.setAttribute("cm-ignore-events", "true"), na(i, j, c, d), a.display.input.setUneditable(j), e && i.above ? f.insertBefore(j, c.gutter || c.text) : f.appendChild(j), Nf(i, "redraw")
-            }
-    }
-
-    function na(a, b, c, d) {
-        if (a.noHScroll) {
-            (c.alignable || (c.alignable = []))
-            .push(b);
-            var e = d.wrapperWidth;
-            b.style.left = d.fixedPos + "px", a.coverGutter || (e -= d.gutterTotalWidth, b.style.paddingLeft = d.gutterTotalWidth + "px"), b.style.width = e + "px"
-        }
-        a.coverGutter && (b.style.zIndex = 5, b.style.position = "relative", a.noHScroll || (b.style.marginLeft = -d.gutterTotalWidth + "px"))
-    }
-
-    function qa(a) {
-        return oa(a.line, a.ch)
-    }
-
-    function ra(a, b) {
-        return pa(a, b) < 0 ? b : a
-    }
-
-    function sa(a, b) {
-        return pa(a, b) < 0 ? a : b
-    }
-
-    function ta(a) {
-        a.state.focused || (a.display.input.focus(), Zc(a))
-    }
-
-    function ua(a) {
-        return a.options.readOnly || a.doc.cantEdit
-    }
-
-    function wa(a, b, c, d, e) {
-        var f = a.doc;
-        a.display.shift = !1, d || (d = f.sel);
-        var g = a.state.pasteIncoming || "paste" == e,
-            h = f.splitLines(b),
-            i = null;
-        if (g && d.ranges.length > 1)
-            if (va && va.join("\n") == b) {
-                if (d.ranges.length % va.length == 0) {
-                    i = [];
-                    for (var j = 0; j < va.length; j++) i.push(f.splitLines(va[j]))
-                }
-            } else h.length == d.ranges.length && (i = eg(h, function (a) {
-                return [a]
-            }));
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-            var k = d.ranges[j],
-                l = k.from(),
-                m = k.to();
-            k.empty() && (c && c > 0 ? l = oa(l.line, l.ch - c) : a.state.overwrite && !g && (m = oa(m.line, Math.min(ff(f, m.line)
-                .text.length, m.ch + bg(h)
-                .length))));
-            var n = a.curOp.updateInput,
-                o = {
-                    from: l,
-                    to: m,
-                    text: i ? i[j % i.length] : h,
-                    origin: e || (g ? "paste" : a.state.cutIncoming ? "cut" : "+input")
-                };
-            hd(a.doc, o), Nf(a, "inputRead", a, o)
-        }
-        b && !g && ya(a, b), td(a), a.curOp.updateInput = n, a.curOp.typing = !0, a.state.pasteIncoming = a.state.cutIncoming = !1
-    }
-
-    function xa(a, b) {
-        var c = a.clipboardData && a.clipboardData.getData("text/plain");
-        return c ? (a.preventDefault(), ua(b) || b.options.disableInput || cc(b, function () {
-            wa(b, c, 0, null, "paste")
-        }), !0) : void 0
-    }
-
-    function ya(a, b) {
-        if (a.options.electricChars && a.options.smartIndent)
-            for (var c = a.doc.sel, d = c.ranges.length - 1; d >= 0; d--) {
-                var e = c.ranges[d];
-                if (!(e.head.ch > 100 || d && c.ranges[d - 1].head.line == e.head.line)) {
-                    var f = a.getModeAt(e.head),
-                        g = !1;
-                    if (f.electricChars) {
-                        for (var h = 0; h < f.electricChars.length; h++)
-                            if (b.indexOf(f.electricChars.charAt(h)) > -1) {
-                                g = vd(a, e.head.line, "smart");
-                                break
-                            }
-                    } else f.electricInput && f.electricInput.test(ff(a.doc, e.head.line)
-                        .text.slice(0, e.head.ch)) && (g = vd(a, e.head.line, "smart"));
-                    g && Nf(a, "electricInput", a, e.head.line)
-                }
-            }
-    }
-
-    function za(a) {
-        for (var b = [], c = [], d = 0; d < a.doc.sel.ranges.length; d++) {
-            var e = a.doc.sel.ranges[d].head.line,
-                f = {
-                    anchor: oa(e, 0),
-                    head: oa(e + 1, 0)
-                };
-            c.push(f), b.push(a.getRange(f.anchor, f.head))
-        }
-        return {
-            text: b,
-            ranges: c
-        }
-    }
-
-    function Aa(a) {
-        a.setAttribute("autocorrect", "off"), a.setAttribute("autocapitalize", "off"), a.setAttribute("spellcheck", "false")
-    }
-
-    function Ba(a) {
-        this.cm = a, this.prevInput = "", this.pollingFast = !1, this.polling = new Yf, this.inaccurateSelection = !1, this.hasSelection = !1, this.composing = null
-    }
-
-    function Ca() {
-        var a = pg("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none"),
-            b = pg("div", [a], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
-        return f ? a.style.width = "1000px" : a.setAttribute("wrap", "off"), m && (a.style.border = "1px solid black"), Aa(a), b
-    }
-
-    function Da(a) {
-        this.cm = a, this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null, this.polling = new Yf, this.gracePeriod = !1
-    }
-
-    function Ea(a, b) {
-        var c = wb(a, b.line);
-        if (!c || c.hidden) return null;
-        var d = ff(a.doc, b.line),
-            e = tb(c, d, b.line),
-            f = nf(d),
-            g = "left";
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-            var h = Yg(f, b.ch);
-            g = h % 2 ? "right" : "left"
-        }
-        var i = Ab(e.map, b.ch, g);
-        return i.offset = "right" == i.collapse ? i.end : i.start, i
-    }
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-    function Fa(a, b) {
-        return b && (a.bad = !0), a
-    }
-
-    function Ga(a, b, c) {
-        var d;
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-            if (d = a.display.lineDiv.childNodes[c], !d) return Fa(a.clipPos(oa(a.display.viewTo - 1)), !0);
-            b = null, c = 0
-        } else
-            for (d = b;; d = d.parentNode) {
-                if (!d || d == a.display.lineDiv) return null;
-                if (d.parentNode && d.parentNode == a.display.lineDiv) break
-            }
-        for (var e = 0; e < a.display.view.length; e++) {
-            var f = a.display.view[e];
-            if (f.node == d) return Ha(f, b, c)
-        }
-    }
-
-    function Ha(a, b, c) {
-        function k(b, c, d) {
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-                for (var f = 0 > e ? i.map : j[e], g = 0; g < f.length; g += 3) {
-                    var h = f[g + 2];
-                    if (h == b || h == c) {
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-                    }
-                }
-        }
-        var d = a.text.firstChild,
-            e = !1;
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-            var f = a.rest ? bg(a.rest) : a.line;
-            return Fa(oa(kf(f), f.text.length), e)
-        }
-        var g = 3 == b.nodeType ? b : null,
-            h = b;
-        for (g || 1 != b.childNodes.length || 3 != b.firstChild.nodeType || (g = b.firstChild, c && (c = g.nodeValue.length)); h.parentNode != d;) h = h.parentNode;
-        var i = a.measure,
-            j = i.maps,
-            l = k(g, h, c);
-        if (l) return Fa(l, e);
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-            if (l = k(m, m.firstChild, 0)) return Fa(oa(l.line, l.ch - n), e);
-            n += m.textContent.length
-        }
-        for (var o = h.previousSibling, n = c; o; o = o.previousSibling) {
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-        }
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-            return function (b) {
-                return b.id == a
-            }
-        }
-
-        function j(b) {
-            if (1 == b.nodeType) {
-                var c = b.getAttribute("cm-text");
-                if (null != c) return "" == c && (c = b.textContent.replace(/\u200b/g, "")), void(f += c);
-                var l, k = b.getAttribute("cm-marker");
-                if (k) {
-                    var m = a.findMarks(oa(d, 0), oa(e + 1, 0), i(+k));
-                    return void(m.length && (l = m[0].find()) && (f += gf(a.doc, l.from, l.to)
-                        .join(h)))
-                }
-                if ("false" == b.getAttribute("contenteditable")) return;
-                for (var n = 0; n < b.childNodes.length; n++) j(b.childNodes[n]);
-                /^(pre|div|p)$/i.test(b.nodeName) && (g = !0)
-            } else if (3 == b.nodeType) {
-                var o = b.nodeValue;
-                if (!o) return;
-                g && (f += h, g = !1), f += o
-            }
-        }
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-        return f
-    }
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-    }
-
-    function Ka(a, b) {
-        this.anchor = a, this.head = b
-    }
-
-    function La(a, b) {
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-        }
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-
-    function Ma(a, b) {
-        return new Ja([new Ka(a, b || a)], 0)
-    }
-
-    function Na(a, b) {
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-
-    function Oa(a, b) {
-        if (b.line < a.first) return oa(a.first, 0);
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-            .text.length) : Pa(b, ff(a, b.line)
-            .text.length)
-    }
-
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-    }
-
-    function Qa(a, b) {
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-    }
-
-    function Ra(a, b) {
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-        return c
-    }
-
-    function Sa(a, b, c, d) {
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-            }
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-        }
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-    }
-
-    function Ta(a, b, c, d) {
-        Za(a, new Ja([Sa(a, a.sel.primary(), b, c)], 0), d)
-    }
-
-    function Ua(a, b, c) {
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-        Za(a, f, c)
-    }
-
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-        e[b] = c, Za(a, La(e, a.sel.primIndex), d)
-    }
-
-    function Wa(a, b, c, d) {
-        Za(a, Ma(b, c), d)
-    }
-
-    function Xa(a, b) {
-        var c = {
-            ranges: b.ranges,
-            update: function (b) {
-                this.ranges = [];
-                for (var c = 0; c < b.length; c++) this.ranges[c] = new Ka(Oa(a, b[c].anchor), Oa(a, b[c].head))
-            }
-        };
-        return Lf(a, "beforeSelectionChange", a, c), a.cm && Lf(a.cm, "beforeSelectionChange", a.cm, c), c.ranges != b.ranges ? La(c.ranges, c.ranges.length - 1) : b
-    }
-
-    function Ya(a, b, c) {
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-    }
-
-    function Za(a, b, c) {
-        $a(a, b, c), uf(a, a.sel, a.cm ? a.cm.curOp.id : NaN, c)
-    }
-
-    function $a(a, b, c) {
-        (Rf(a, "beforeSelectionChange") || a.cm && Rf(a.cm, "beforeSelectionChange")) && (b = Xa(a, b));
-        var d = c && c.bias || (pa(b.primary()
-            .head, a.sel.primary()
-            .head) < 0 ? -1 : 1);
-        _a(a, bb(a, b, d, !0)), c && c.scroll === !1 || !a.cm || td(a.cm)
-    }
-
-    function _a(a, b) {
-        b.equals(a.sel) || (a.sel = b, a.cm && (a.cm.curOp.updateInput = a.cm.curOp.selectionChanged = !0, Qf(a.cm)), Nf(a, "cursorActivity", a))
-    }
-
-    function ab(a) {
-        _a(a, bb(a, a.sel, null, !1), Vf)
-    }
-
-    function bb(a, b, c, d) {
-        for (var e, f = 0; f < b.ranges.length; f++) {
-            var g = b.ranges[f],
-                h = cb(a, g.anchor, c, d),
-                i = cb(a, g.head, c, d);
-            (e || h != g.anchor || i != g.head) && (e || (e = b.ranges.slice(0, f)), e[f] = new Ka(h, i))
-        }
-        return e ? La(e, b.primIndex) : b
-    }
-
-    function cb(a, b, c, d) {
-        var e = !1,
-            f = b,
-            g = c || 1;
-        a.cantEdit = !1;
-        a: for (;;) {
-            var h = ff(a, f.line);
-            if (h.markedSpans)
-                for (var i = 0; i < h.markedSpans.length; ++i) {
-                    var j = h.markedSpans[i],
-                        k = j.marker;
-                    if ((null == j.from || (k.inclusiveLeft ? j.from <= f.ch : j.from < f.ch)) && (null == j.to || (k.inclusiveRight ? j.to >= f.ch : j.to > f.ch))) {
-                        if (d && (Lf(k, "beforeCursorEnter"), k.explicitlyCleared)) {
-                            if (h.markedSpans) {
-                                --i;
-                                continue
-                            }
-                            break
-                        }
-                        if (!k.atomic) continue;
-                        var l = k.find(0 > g ? -1 : 1);
-                        if (0 == pa(l, f) && (l.ch += g, l.ch < 0 ? l = l.line > a.first ? Oa(a, oa(l.line - 1)) : null : l.ch > h.text.length && (l = l.line < a.first + a.size - 1 ? oa(l.line + 1, 0) : null), !l)) {
-                            if (e) return d ? (a.cantEdit = !0, oa(a.first, 0)) : cb(a, b, c, !0);
-                            e = !0, l = b, g = -g
-                        }
-                        f = l;
-                        continue a
-                    }
-                }
-            return f
-        }
-    }
-
-    function db(a) {
-        a.display.input.showSelection(a.display.input.prepareSelection())
-    }
-
-    function eb(a, b) {
-        for (var c = a.doc, d = {}, e = d.cursors = document.createDocumentFragment(), f = d.selection = document.createDocumentFragment(), g = 0; g < c.sel.ranges.length; g++)
-            if (b !== !1 || g != c.sel.primIndex) {
-                var h = c.sel.ranges[g],
-                    i = h.empty();
-                (i || a.options.showCursorWhenSelecting) && fb(a, h.head, e), i || gb(a, h, f)
-            }
-        return d
-    }
-
-    function fb(a, b, c) {
-        var d = Lb(a, b, "div", null, null, !a.options.singleCursorHeightPerLine),
-            e = c.appendChild(pg("div", "\xa0", "CodeMirror-cursor"));
-        if (e.style.left = d.left + "px", e.style.top = d.top + "px", e.style.height = Math.max(0, d.bottom - d.top) * a.options.cursorHeight + "px", d.other) {
-            var f = c.appendChild(pg("div", "\xa0", "CodeMirror-cursor CodeMirror-secondarycursor"));
-            f.style.display = "", f.style.left = d.other.left + "px", f.style.top = d.other.top + "px", f.style.height = .85 * (d.other.bottom - d.other.top) + "px"
-        }
-    }
-
-    function gb(a, b, c) {
-        function j(a, b, c, d) {
-            0 > b && (b = 0), b = Math.round(b), d = Math.round(d), f.appendChild(pg("div", null, "CodeMirror-selected", "position: absolute; left: " + a + "px; top: " + b + "px; width: " + (null == c ? i - a : c) + "px; height: " + (d - b) + "px"))
-        }
-
-        function k(b, c, d) {
-            function m(c, d) {
-                return Kb(a, oa(b, c), "div", f, d)
-            }
-            var k, l, f = ff(e, b),
-                g = f.text.length;
-            return Og(nf(f), c || 0, null == d ? g : d, function (a, b, e) {
-                var n, o, p, f = m(a, "left");
-                if (a == b) n = f, o = p = f.left;
-                else {
-                    if (n = m(b - 1, "right"), "rtl" == e) {
-                        var q = f;
-                        f = n, n = q
-                    }
-                    o = f.left, p = n.right
-                }
-                null == c && 0 == a && (o = h), n.top - f.top > 3 && (j(o, f.top, null, f.bottom), o = h, f.bottom < n.top && j(o, f.bottom, null, n.top)), null == d && b == g && (p = i), (!k || f.top < k.top || f.top == k.top && f.left < k.left) && (k = f), (!l || n.bottom > l.bottom || n.bottom == l.bottom && n.right > l.right) && (l = n), h + 1 > o && (o = h), j(o, n.top, p - o, n.bottom)
-            }), {
-                start: k,
-                end: l
-            }
-        }
-        var d = a.display,
-            e = a.doc,
-            f = document.createDocumentFragment(),
-            g = ob(a.display),
-            h = g.left,
-            i = Math.max(d.sizerWidth, qb(a) - d.sizer.offsetLeft) - g.right,
-            l = b.from(),
-            m = b.to();
-        if (l.line == m.line) k(l.line, l.ch, m.ch);
-        else {
-            var n = ff(e, l.line),
-                o = ff(e, m.line),
-                p = se(n) == se(o),
-                q = k(l.line, l.ch, p ? n.text.length + 1 : null)
-                .end,
-                r = k(m.line, p ? 0 : null, m.ch)
-                .start;
-            p && (q.top < r.top - 2 ? (j(q.right, q.top, null, q.bottom), j(h, r.top, r.left, r.bottom)) : j(q.right, q.top, r.left - q.right, q.bottom)), q.bottom < r.top && j(h, q.bottom, null, r.top)
-        }
-        c.appendChild(f)
-    }
-
-    function hb(a) {
-        if (a.state.focused) {
-            var b = a.display;
-            clearInterval(b.blinker);
-            var c = !0;
-            b.cursorDiv.style.visibility = "", a.options.cursorBlinkRate > 0 ? b.blinker = setInterval(function () {
-                b.cursorDiv.style.visibility = (c = !c) ? "" : "hidden"
-            }, a.options.cursorBlinkRate) : a.options.cursorBlinkRate < 0 && (b.cursorDiv.style.visibility = "hidden")
-        }
-    }
-
-    function ib(a, b) {
-        a.doc.mode.startState && a.doc.frontier < a.display.viewTo && a.state.highlight.set(b, ig(jb, a))
-    }
-
-    function jb(a) {
-        var b = a.doc;
-        if (b.frontier < b.first && (b.frontier = b.first), !(b.frontier >= a.display.viewTo)) {
-            var c = +new Date + a.options.workTime,
-                d = Jd(b.mode, lb(a, b.frontier)),
-                e = [];
-            b.iter(b.frontier, Math.min(b.first + b.size, a.display.viewTo + 500), function (f) {
-                if (b.frontier >= a.display.viewFrom) {
-                    var g = f.styles,
-                        h = f.text.length > a.options.maxHighlightLength,
-                        i = Ke(a, f, h ? Jd(b.mode, d) : d, !0);
-                    f.styles = i.styles;
-                    var j = f.styleClasses,
-                        k = i.classes;
-                    k ? f.styleClasses = k : j && (f.styleClasses = null);
-                    for (var l = !g || g.length != f.styles.length || j != k && (!j || !k || j.bgClass != k.bgClass || j.textClass != k.textClass), m = 0; !l && m < g.length; ++m) l = g[m] != f.styles[m];
-                    l && e.push(b.frontier), f.stateAfter = h ? d : Jd(b.mode, d)
-                } else f.text.length <= a.options.maxHighlightLength && Me(a, f.text, d), f.stateAfter = b.frontier % 5 == 0 ? Jd(b.mode, d) : null;
-                return ++b.frontier, +new Date > c ? (ib(a, a.options.workDelay), !0) : void 0
-            }), e.length && cc(a, function () {
-                for (var b = 0; b < e.length; b++) jc(a, e[b], "text")
-            })
-        }
-    }
-
-    function kb(a, b, c) {
-        for (var d, e, f = a.doc, g = c ? -1 : b - (a.doc.mode.innerMode ? 1e3 : 100), h = b; h > g; --h) {
-            if (h <= f.first) return f.first;
-            var i = ff(f, h - 1);
-            if (i.stateAfter && (!c || h <= f.frontier)) return h;
-            var j = Zf(i.text, null, a.options.tabSize);
-            (null == e || d > j) && (e = h - 1, d = j)
-        }
-        return e
-    }
-
-    function lb(a, b, c) {
-        var d = a.doc,
-            e = a.display;
-        if (!d.mode.startState) return !0;
-        var f = kb(a, b, c),
-            g = f > d.first && ff(d, f - 1)
-            .stateAfter;
-        return g = g ? Jd(d.mode, g) : Kd(d.mode), d.iter(f, b, function (c) {
-            Me(a, c.text, g);
-            var h = f == b - 1 || f % 5 == 0 || f >= e.viewFrom && f < e.viewTo;
-            c.stateAfter = h ? Jd(d.mode, g) : null, ++f
-        }), c && (d.frontier = f), g
-    }
-
-    function mb(a) {
-        return a.lineSpace.offsetTop
-    }
-
-    function nb(a) {
-        return a.mover.offsetHeight - a.lineSpace.offsetHeight
-    }
-
-    function ob(a) {
-        if (a.cachedPaddingH) return a.cachedPaddingH;
-        var b = sg(a.measure, pg("pre", "x")),
-            c = window.getComputedStyle ? window.getComputedStyle(b, null) : b.currentStyle, // why the null: http://bugs.jquery.com/ticket/8635
-            d = {
-                left: parseInt(c.paddingLeft),
-                right: parseInt(c.paddingRight)
-            };
-        return isNaN(d.left) || isNaN(d.right) || (a.cachedPaddingH = d), d
-    }
-
-    function pb(a) {
-        return Tf - a.display.nativeBarWidth
-    }
-
-    function qb(a) {
-        return a.display.scroller.clientWidth - pb(a) - a.display.barWidth
-    }
-
-    function rb(a) {
-        return a.display.scroller.clientHeight - pb(a) - a.display.barHeight
-    }
-
-    function sb(a, b, c) {
-        var d = a.options.lineWrapping,
-            e = d && qb(a);
-        if (!b.measure.heights || d && b.measure.width != e) {
-            var f = b.measure.heights = [];
-            if (d) {
-                b.measure.width = e;
-                for (var g = b.text.firstChild.getClientRects(), h = 0; h < g.length - 1; h++) {
-                    var i = g[h],
-                        j = g[h + 1];
-                    Math.abs(i.bottom - j.bottom) > 2 && f.push((i.bottom + j.top) / 2 - c.top)
-                }
-            }
-            f.push(c.bottom - c.top)
-        }
-    }
-
-    function tb(a, b, c) {
-        if (a.line == b) return {
-            map: a.measure.map,
-            cache: a.measure.cache
-        };
-        for (var d = 0; d < a.rest.length; d++)
-            if (a.rest[d] == b) return {
-                map: a.measure.maps[d],
-                cache: a.measure.caches[d]
-            };
-        for (var d = 0; d < a.rest.length; d++)
-            if (kf(a.rest[d]) > c) return {
-                map: a.measure.maps[d],
-                cache: a.measure.caches[d],
-                before: !0
-            }
-    }
-
-    function ub(a, b) {
-        b = se(b);
-        var c = kf(b),
-            d = a.display.externalMeasured = new gc(a.doc, b, c);
-        d.lineN = c;
-        var e = d.built = Qe(a, d);
-        return d.text = e.pre, sg(a.display.lineMeasure, e.pre), d
-    }
-
-    function vb(a, b, c, d) {
-        return yb(a, xb(a, b), c, d)
-    }
-
-    function wb(a, b) {
-        if (b >= a.display.viewFrom && b < a.display.viewTo) return a.display.view[lc(a, b)];
-        var c = a.display.externalMeasured;
-        return c && b >= c.lineN && b < c.lineN + c.size ? c : void 0
-    }
-
-    function xb(a, b) {
-        var c = kf(b),
-            d = wb(a, c);
-        d && !d.text ? d = null : d && d.changes && (ca(a, d, c, aa(a)), a.curOp.forceUpdate = !0), d || (d = ub(a, b));
-        var e = tb(d, b, c);
-        return {
-            line: b,
-            view: d,
-            rect: null,
-            map: e.map,
-            cache: e.cache,
-            before: e.before,
-            hasHeights: !1
-        }
-    }
-
-    function yb(a, b, c, d, e) {
-        b.before && (c = -1);
-        var g, f = c + (d || "");
-        return b.cache.hasOwnProperty(f) ? g = b.cache[f] : (b.rect || (b.rect = b.view.text.getBoundingClientRect()), b.hasHeights || (sb(a, b.view, b.rect), b.hasHeights = !0), g = Bb(a, b, c, d), g.bogus || (b.cache[f] = g)), {
-            left: g.left,
-            right: g.right,
-            top: e ? g.rtop : g.top,
-            bottom: e ? g.rbottom : g.bottom
-        }
-    }
-
-    function Ab(a, b, c) {
-        for (var d, e, f, g, h = 0; h < a.length; h += 3) {
-            var i = a[h],
-                j = a[h + 1];
-            if (i > b ? (e = 0, f = 1, g = "left") : j > b ? (e = b - i, f = e + 1) : (h == a.length - 3 || b == j && a[h + 3] > b) && (f = j - i, e = f - 1, b >= j && (g = "right")), null != e) {
-                if (d = a[h + 2], i == j && c == (d.insertLeft ? "left" : "right") && (g = c), "left" == c && 0 == e)
-                    for (; h && a[h - 2] == a[h - 3] && a[h - 1].insertLeft;) d = a[(h -= 3) + 2], g = "left";
-                if ("right" == c && e == j - i)
-                    for (; h < a.length - 3 && a[h + 3] == a[h + 4] && !a[h + 5].insertLeft;) d = a[(h += 3) + 2], g = "right";
-                break
-            }
-        }
-        return {
-            node: d,
-            start: e,
-            end: f,
-            collapse: g,
-            coverStart: i,
-            coverEnd: j
-        }
-    }
-
-    function Bb(a, b, c, f) {
-        var l, g = Ab(b.map, c, f),
-            h = g.node,
-            i = g.start,
-            j = g.end,
-            k = g.collapse;
-        if (3 == h.nodeType) {
-            for (var m = 0; 4 > m; m++) {
-                for (; i && og(b.line.text.charAt(g.coverStart + i));) --i;
-                for (; g.coverStart + j < g.coverEnd && og(b.line.text.charAt(g.coverStart + j));) ++j;
-                if (d && 9 > e && 0 == i && j == g.coverEnd - g.coverStart) l = h.parentNode.getBoundingClientRect();
-                else if (d && a.options.lineWrapping) {
-                    var n = qg(h, i, j).getClientRects();
-                    l = n.length ? n["right" == f ? n.length - 1 : 0] : zb
-                } else if (oldff) { // customization here
-                    var w = jQuery(".CodeMirror-line SPAN", b.view.node).get(0);
-                    if (w) {
-                        l = w.getClientRects()[0];
-                    } else {
-                        l = zb;
-                    }
-                } else {
-                    l = qg(h, i, j).getBoundingClientRect() || zb;
-                }
-                if (l.left || l.right || 0 == i) break;
-                j = i, i -= 1, k = "right"
-            }
-            d && 11 > e && (l = Cb(a.display.measure, l))
-        } else {
-            i > 0 && (k = f = "right");
-            var n;
-            l = a.options.lineWrapping && (n = h.getClientRects())
-                .length > 1 ? n["right" == f ? n.length - 1 : 0] : h.getBoundingClientRect()
-        }
-        if (d && 9 > e && !i && (!l || !l.left && !l.right)) {
-            var o = h.parentNode.getClientRects()[0];
-            l = o ? {
-                left: o.left,
-                right: o.left + Sb(a.display),
-                top: o.top,
-                bottom: o.bottom
-            } : zb
-        }
-        for (var p = l.top - b.rect.top, q = l.bottom - b.rect.top, r = (p + q) / 2, s = b.view.measure.heights, m = 0; m < s.length - 1 && !(r < s[m]); m++);
-        var t = m ? s[m - 1] : 0,
-            u = s[m],
-            v = {
-                left: ("right" == k ? l.right : l.left) - b.rect.left,
-                right: ("left" == k ? l.left : l.right) - b.rect.left,
-                top: t,
-                bottom: u
-            };
-        return l.left || l.right || (v.bogus = !0), a.options.singleCursorHeightPerLine || (v.rtop = p, v.rbottom = q), v
-    }
-
-    function Cb(a, b) {
-        if (!window.screen || null == screen.logicalXDPI || screen.logicalXDPI == screen.deviceXDPI || !Mg(a)) return b;
-        var c = screen.logicalXDPI / screen.deviceXDPI,
-            d = screen.logicalYDPI / screen.deviceYDPI;
-        return {
-            left: b.left * c,
-            right: b.right * c,
-            top: b.top * d,
-            bottom: b.bottom * d
-        }
-    }
-
-    function Db(a) {
-        if (a.measure && (a.measure.cache = {}, a.measure.heights = null, a.rest))
-            for (var b = 0; b < a.rest.length; b++) a.measure.caches[b] = {}
-    }
-
-    function Eb(a) {
-        a.display.externalMeasure = null, rg(a.display.lineMeasure);
-        for (var b = 0; b < a.display.view.length; b++) Db(a.display.view[b])
-    }
-
-    function Fb(a) {
-        Eb(a), a.display.cachedCharWidth = a.display.cachedTextHeight = a.display.cachedPaddingH = null, a.options.lineWrapping || (a.display.maxLineChanged = !0), a.display.lineNumChars = null
-    }
-
-    function Gb() {
-        return window.pageXOffset || (document.documentElement || document.body)
-            .scrollLeft
-    }
-
-    function Hb() {
-        return window.pageYOffset || (document.documentElement || document.body)
-            .scrollTop
-    }
-
-    function Ib(a, b, c, d) {
-        if (b.widgets)
-            for (var e = 0; e < b.widgets.length; ++e)
-                if (b.widgets[e].above) {
-                    var f = Ae(b.widgets[e]);
-                    c.top += f, c.bottom += f
-                }
-        if ("line" == d) return c;
-        d || (d = "local");
-        var g = mf(b);
-        if ("local" == d ? g += mb(a.display) : g -= a.display.viewOffset, "page" == d || "window" == d) {
-            var h = a.display.lineSpace.getBoundingClientRect();
-            g += h.top + ("window" == d ? 0 : Hb());
-            var i = h.left + ("window" == d ? 0 : Gb());
-            c.left += i, c.right += i
-        }
-        return c.top += g, c.bottom += g, c
-    }
-
-    function Jb(a, b, c) {
-        if ("div" == c) return b;
-        var d = b.left,
-            e = b.top;
-        if ("page" == c) d -= Gb(), e -= Hb();
-        else if ("local" == c || !c) {
-            var f = a.display.sizer.getBoundingClientRect();
-            d += f.left, e += f.top
-        }
-        var g = a.display.lineSpace.getBoundingClientRect();
-        return {
-            left: d - g.left,
-            top: e - g.top
-        }
-    }
-
-    function Kb(a, b, c, d, e) {
-        return d || (d = ff(a.doc, b.line)), Ib(a, d, vb(a, d, b.ch, e), c)
-    }
-
-    function Lb(a, b, c, d, e, f) {
-        function g(b, g) {
-            var h = yb(a, e, b, g ? "right" : "left", f);
-            return g ? h.left = h.right : h.right = h.left, Ib(a, d, h, c)
-        }
-
-        function h(a, b) {
-            var c = i[b],
-                d = c.level % 2;
-            return a == Pg(c) && b && c.level < i[b - 1].level ? (c = i[--b], a = Qg(c) - (c.level % 2 ? 0 : 1), d = !0) : a == Qg(c) && b < i.length - 1 && c.level < i[b + 1].level && (c = i[++b], a = Pg(c) - c.level % 2, d = !1), d && a == c.to && a > c.from ? g(a - 1) : g(a, d)
-        }
-        d = d || ff(a.doc, b.line), e || (e = xb(a, d));
-        var i = nf(d),
-            j = b.ch;
-        if (!i) return g(j);
-        var k = Yg(i, j),
-            l = h(j, k);
-        return null != Xg && (l.other = h(j, Xg)), l
-    }
-
-    function Mb(a, b) {
-        var c = 0,
-            b = Oa(a.doc, b);
-        a.options.lineWrapping || (c = Sb(a.display) * b.ch);
-        var d = ff(a.doc, b.line),
-            e = mf(d) + mb(a.display);
-        return {
-            left: c,
-            right: c,
-            top: e,
-            bottom: e + d.height
-        }
-    }
-
-    function Nb(a, b, c, d) {
-        var e = oa(a, b);
-        return e.xRel = d, c && (e.outside = !0), e
-    }
-
-    function Ob(a, b, c) {
-        var d = a.doc;
-        if (c += a.display.viewOffset, 0 > c) return Nb(d.first, 0, !0, -1);
-        var e = lf(d, c),
-            f = d.first + d.size - 1;
-        if (e > f) return Nb(d.first + d.size - 1, ff(d, f)
-            .text.length, !0, 1);
-        0 > b && (b = 0);
-        for (var g = ff(d, e);;) {
-            var h = Pb(a, g, e, b, c),
-                i = qe(g),
-                j = i && i.find(0, !0);
-            if (!i || !(h.ch > j.from.ch || h.ch == j.from.ch && h.xRel > 0)) return h;
-            e = kf(g = j.to.line)
-        }
-    }
-
-    function Pb(a, b, c, d, e) {
-        function j(d) {
-            var e = Lb(a, oa(c, d), "line", b, i);
-            return g = !0, f > e.bottom ? e.left - h : f < e.top ? e.left + h : (g = !1, e.left)
-        }
-        var f = e - mf(b),
-            g = !1,
-            h = 2 * a.display.wrapper.clientWidth,
-            i = xb(a, b),
-            k = nf(b),
-            l = b.text.length,
-            m = Rg(b),
-            n = Sg(b),
-            o = j(m),
-            p = g,
-            q = j(n),
-            r = g;
-        if (d > q) return Nb(c, n, r, 1);
-        for (;;) {
-            if (k ? n == m || n == $g(b, m, 1) : 1 >= n - m) {
-                for (var s = o > d || q - d >= d - o ? m : n, t = d - (s == m ? o : q); og(b.text.charAt(s));) ++s;
-                var u = Nb(c, s, s == m ? p : r, -1 > t ? -1 : t > 1 ? 1 : 0);
-                return u
-            }
-            var v = Math.ceil(l / 2),
-                w = m + v;
-            if (k) {
-                w = m;
-                for (var x = 0; v > x; ++x) w = $g(b, w, 1)
-            }
-            var y = j(w);
-            y > d ? (n = w, q = y, (r = g) && (q += 1e3), l = v) : (m = w, o = y, p = g, l -= v)
-        }
-    }
-
-    function Rb(a) {
-        if (null != a.cachedTextHeight) return a.cachedTextHeight;
-        if (null == Qb) {
-            Qb = pg("pre");
-            for (var b = 0; 49 > b; ++b) Qb.appendChild(document.createTextNode("x")), Qb.appendChild(pg("br"));
-            Qb.appendChild(document.createTextNode("x"))
-        }
-        sg(a.measure, Qb);
-        var c = Qb.offsetHeight / 50;
-        return c > 3 && (a.cachedTextHeight = c), rg(a.measure), c || 1
-    }
-
-    function Sb(a) {
-        if (null != a.cachedCharWidth) return a.cachedCharWidth;
-        var b = pg("span", "xxxxxxxxxx"),
-            c = pg("pre", [b]);
-        sg(a.measure, c);
-        var d = b.getBoundingClientRect(),
-            e = (d.right - d.left) / 10;
-        return e > 2 && (a.cachedCharWidth = e), e || 10
-    }
-
-    function Vb(a) {
-        a.curOp = {
-            cm: a,
-            viewChanged: !1,
-            startHeight: a.doc.height,
-            forceUpdate: !1,
-            updateInput: null,
-            typing: !1,
-            changeObjs: null,
-            cursorActivityHandlers: null,
-            cursorActivityCalled: 0,
-            selectionChanged: !1,
-            updateMaxLine: !1,
-            scrollLeft: null,
-            scrollTop: null,
-            scrollToPos: null,
-            focus: !1,
-            id: ++Ub
-        }, Tb ? Tb.ops.push(a.curOp) : a.curOp.ownsGroup = Tb = {
-            ops: [a.curOp],
-            delayedCallbacks: []
-        }
-    }
-
-    function Wb(a) {
-        var b = a.delayedCallbacks,
-            c = 0;
-        do {
-            for (; c < b.length; c++) b[c].call(null);
-            for (var d = 0; d < a.ops.length; d++) {
-                var e = a.ops[d];
-                if (e.cursorActivityHandlers)
-                    for (; e.cursorActivityCalled < e.cursorActivityHandlers.length;) e.cursorActivityHandlers[e.cursorActivityCalled++].call(null, e.cm)
-            }
-        } while (c < b.length)
-    }
-
-    function Xb(a) {
-        var b = a.curOp,
-            c = b.ownsGroup;
-        if (c) try {
-            Wb(c)
-        } finally {
-            Tb = null;
-            for (var d = 0; d < c.ops.length; d++) c.ops[d].cm.curOp = null;
-            Yb(c)
-        }
-    }
-
-    function Yb(a) {
-        for (var b = a.ops, c = 0; c < b.length; c++) Zb(b[c]);
-        for (var c = 0; c < b.length; c++) $b(b[c]);
-        for (var c = 0; c < b.length; c++) _b(b[c]);
-        for (var c = 0; c < b.length; c++) ac(b[c]);
-        for (var c = 0; c < b.length; c++) bc(b[c])
-    }
-
-    function Zb(a) {
-        var b = a.cm,
-            c = b.display;
-        V(b), a.updateMaxLine && H(b), a.mustUpdate = a.viewChanged || a.forceUpdate || null != a.scrollTop || a.scrollToPos && (a.scrollToPos.from.line < c.viewFrom || a.scrollToPos.to.line >= c.viewTo) || c.maxLineChanged && b.options.lineWrapping, a.update = a.mustUpdate && new U(b, a.mustUpdate && {
-            top: a.scrollTop,
-            ensure: a.scrollToPos
-        }, a.forceUpdate)
-    }
-
-    function $b(a) {
-        a.updatedDisplay = a.mustUpdate && W(a.cm, a.update)
-    }
-
-    function _b(a) {
-        var b = a.cm,
-            c = b.display;
-        a.updatedDisplay && $(b), a.barMeasure = J(b), c.maxLineChanged && !b.options.lineWrapping && (a.adjustWidthTo = vb(b, c.maxLine, c.maxLine.text.length)
-            .left + 3, b.display.sizerWidth = a.adjustWidthTo, a.barMeasure.scrollWidth = Math.max(c.scroller.clientWidth, c.sizer.offsetLeft + a.adjustWidthTo + pb(b) + b.display.barWidth), a.maxScrollLeft = Math.max(0, c.sizer.offsetLeft + a.adjustWidthTo - qb(b))), (a.updatedDisplay || a.selectionChanged) && (a.preparedSelection = c.input.prepareSelection())
-    }
-
-    function ac(a) {
-        var b = a.cm;
-        null != a.adjustWidthTo && (b.display.sizer.style.minWidth = a.adjustWidthTo + "px", a.maxScrollLeft < b.doc.scrollLeft && Ic(b, Math.min(b.display.scroller.scrollLeft, a.maxScrollLeft), !0), b.display.maxLineChanged = !1), a.preparedSelection && b.display.input.showSelection(a.preparedSelection), a.updatedDisplay && Z(b, a.barMeasure), (a.updatedDisplay || a.startHeight != b.doc.height) && N(b, a.barMeasure), a.selectionChanged && hb(b), b.state.focused && a.updateInput && b.display.input.reset(a.typing), a.focus && a.focus == ug() && ta(a.cm)
-    }
-
-    function bc(a) {
-        var b = a.cm,
-            c = b.display,
-            d = b.doc;
-        if (a.updatedDisplay && X(b, a.update), null == c.wheelStartX || null == a.scrollTop && null == a.scrollLeft && !a.scrollToPos || (c.wheelStartX = c.wheelStartY = null), null == a.scrollTop || c.scroller.scrollTop == a.scrollTop && !a.forceScroll || (d.scrollTop = Math.max(0, Math.min(c.scroller.scrollHeight - c.scroller.clientHeight, a.scrollTop)), c.scrollbars.setScrollTop(d.scrollTop), c.scroller.scrollTop = d.scrollTop), null == a.scrollLeft || c.scroller.scrollLeft == a.scrollLeft && !a.forceScroll || (d.scrollLeft = Math.max(0, Math.min(c.scroller.scrollWidth - qb(b), a.scrollLeft)), c.scrollbars.setScrollLeft(d.scrollLeft), c.scroller.scrollLeft = d.scrollLeft, Q(b)), a.scrollToPos) {
-            var e = pd(b, Oa(d, a.scrollToPos.from), Oa(d, a.scrollToPos.to), a.scrollToPos.margin);
-            a.scrollToPos.isCursor && b.state.focused && od(b, e)
-        }
-        var f = a.maybeHiddenMarkers,
-            g = a.maybeUnhiddenMarkers;
-        if (f)
-            for (var h = 0; h < f.length; ++h) f[h].lines.length || Lf(f[h], "hide");
-        if (g)
-            for (var h = 0; h < g.length; ++h) g[h].lines.length && Lf(g[h], "unhide");
-        c.wrapper.offsetHeight && (d.scrollTop = b.display.scroller.scrollTop), a.changeObjs && Lf(b, "changes", b, a.changeObjs), a.update && a.update.finish()
-    }
-
-    function cc(a, b) {
-        if (a.curOp) return b();
-        Vb(a);
-        try {
-            return b()
-        } finally {
-            Xb(a)
-        }
-    }
-
-    function dc(a, b) {
-        return function () {
-            if (a.curOp) return b.apply(a, arguments);
-            Vb(a);
-            try {
-                return b.apply(a, arguments)
-            } finally {
-                Xb(a)
-            }
-        }
-    }
-
-    function ec(a) {
-        return function () {
-            if (this.curOp) return a.apply(this, arguments);
-            Vb(this);
-            try {
-                return a.apply(this, arguments)
-            } finally {
-                Xb(this)
-            }
-        }
-    }
-
-    function fc(a) {
-        return function () {
-            var b = this.cm;
-            if (!b || b.curOp) return a.apply(this, arguments);
-            Vb(b);
-            try {
-                return a.apply(this, arguments)
-            } finally {
-                Xb(b)
-            }
-        }
-    }
-
-    function gc(a, b, c) {
-        this.line = b, this.rest = te(b), this.size = this.rest ? kf(bg(this.rest)) - c + 1 : 1, this.node = this.text = null, this.hidden = we(a, b)
-    }
-
-    function hc(a, b, c) {
-        for (var e, d = [], f = b; c > f; f = e) {
-            var g = new gc(a.doc, ff(a.doc, f), f);
-            e = f + g.size, d.push(g)
-        }
-        return d
-    }
-
-    function ic(a, b, c, d) {
-        null == b && (b = a.doc.first), null == c && (c = a.doc.first + a.doc.size), d || (d = 0);
-        var e = a.display;
-        if (d && c < e.viewTo && (null == e.updateLineNumbers || e.updateLineNumbers > b) && (e.updateLineNumbers = b), a.curOp.viewChanged = !0, b >= e.viewTo) u && ue(a.doc, b) < e.viewTo && kc(a);
-        else if (c <= e.viewFrom) u && ve(a.doc, c + d) > e.viewFrom ? kc(a) : (e.viewFrom += d, e.viewTo += d);
-        else if (b <= e.viewFrom && c >= e.viewTo) kc(a);
-        else if (b <= e.viewFrom) {
-            var f = mc(a, c, c + d, 1);
-            f ? (e.view = e.view.slice(f.index), e.viewFrom = f.lineN, e.viewTo += d) : kc(a)
-        } else if (c >= e.viewTo) {
-            var f = mc(a, b, b, -1);
-            f ? (e.view = e.view.slice(0, f.index), e.viewTo = f.lineN) : kc(a)
-        } else {
-            var g = mc(a, b, b, -1),
-                h = mc(a, c, c + d, 1);
-            g && h ? (e.view = e.view.slice(0, g.index)
-                .concat(hc(a, g.lineN, h.lineN))
-                .concat(e.view.slice(h.index)), e.viewTo += d) : kc(a)
-        }
-        var i = e.externalMeasured;
-        i && (c < i.lineN ? i.lineN += d : b < i.lineN + i.size && (e.externalMeasured = null))
-    }
-
-    function jc(a, b, c) {
-        a.curOp.viewChanged = !0;
-        var d = a.display,
-            e = a.display.externalMeasured;
-        if (e && b >= e.lineN && b < e.lineN + e.size && (d.externalMeasured = null), !(b < d.viewFrom || b >= d.viewTo)) {
-            var f = d.view[lc(a, b)];
-            if (null != f.node) {
-                var g = f.changes || (f.changes = []); - 1 == dg(g, c) && g.push(c)
-            }
-        }
-    }
-
-    function kc(a) {
-        a.display.viewFrom = a.display.viewTo = a.doc.first, a.display.view = [], a.display.viewOffset = 0
-    }
-
-    function lc(a, b) {
-        if (b >= a.display.viewTo) return null;
-        if (b -= a.display.viewFrom, 0 > b) return null;
-        for (var c = a.display.view, d = 0; d < c.length; d++)
-            if (b -= c[d].size, 0 > b) return d
-    }
-
-    function mc(a, b, c, d) {
-        var f, e = lc(a, b),
-            g = a.display.view;
-        if (!u || c == a.doc.first + a.doc.size) return {
-            index: e,
-            lineN: c
-        };
-        for (var h = 0, i = a.display.viewFrom; e > h; h++) i += g[h].size;
-        if (i != b) {
-            if (d > 0) {
-                if (e == g.length - 1) return null;
-                f = i + g[e].size - b, e++
-            } else f = i - b;
-            b += f, c += f
-        }
-        for (; ue(a.doc, c) != c;) {
-            if (e == (0 > d ? 0 : g.length - 1)) return null;
-            c += d * g[e - (0 > d ? 1 : 0)].size, e += d
-        }
-        return {
-            index: e,
-            lineN: c
-        }
-    }
-
-    function nc(a, b, c) {
-        var d = a.display,
-            e = d.view;
-        0 == e.length || b >= d.viewTo || c <= d.viewFrom ? (d.view = hc(a, b, c), d.viewFrom = b) : (d.viewFrom > b ? d.view = hc(a, b, d.viewFrom)
-            .concat(d.view) : d.viewFrom < b && (d.view = d.view.slice(lc(a, b))), d.viewFrom = b, d.viewTo < c ? d.view = d.view.concat(hc(a, d.viewTo, c)) : d.viewTo > c && (d.view = d.view.slice(0, lc(a, c)))), d.viewTo = c
-    }
-
-    function oc(a) {
-        for (var b = a.display.view, c = 0, d = 0; d < b.length; d++) {
-            var e = b[d];
-            e.hidden || e.node && !e.changes || ++c
-        }
-        return c
-    }
-
-    function pc(a) {
-        function g() {
-            b.activeTouch && (c = setTimeout(function () {
-                b.activeTouch = null
-            }, 1e3), f = b.activeTouch, f.end = +new Date)
-        }
-
-        function h(a) {
-            if (1 != a.touches.length) return !1;
-            var b = a.touches[0];
-            return b.radiusX <= 1 && b.radiusY <= 1
-        }
-
-        function i(a, b) {
-            if (null == b.left) return !0;
-            var c = b.left - a.left,
-                d = b.top - a.top;
-            return c * c + d * d > 400
-        }
-        var b = a.display;
-        Jf(b.scroller, "mousedown", dc(a, uc)), d && 11 > e ? Jf(b.scroller, "dblclick", dc(a, function (b) {
-            if (!Pf(a, b)) {
-                var c = tc(a, b);
-                if (c && !Bc(a, b) && !sc(a.display, b)) {
-                    Df(b);
-                    var d = a.findWordAt(c);
-                    Ta(a.doc, d.anchor, d.head)
-                }
-            }
-        })) : Jf(b.scroller, "dblclick", function (b) {
-            Pf(a, b) || Df(b)
-        }), s || Jf(b.scroller, "contextmenu", function (b) {
-            _c(a, b)
-        });
-        var c, f = {
-            end: 0
-        };
-        Jf(b.scroller, "touchstart", function (a) {
-            if (!h(a)) {
-                clearTimeout(c);
-                var d = +new Date;
-                b.activeTouch = {
-                    start: d,
-                    moved: !1,
-                    prev: d - f.end <= 300 ? f : null
-                }, 1 == a.touches.length && (b.activeTouch.left = a.touches[0].pageX, b.activeTouch.top = a.touches[0].pageY)
-            }
-        }), Jf(b.scroller, "touchmove", function () {
-            b.activeTouch && (b.activeTouch.moved = !0)
-        }), Jf(b.scroller, "touchend", function (c) {
-            var d = b.activeTouch;
-            if (d && !sc(b, c) && null != d.left && !d.moved && new Date - d.start < 300) {
-                var f, e = a.coordsChar(b.activeTouch, "page");
-                f = !d.prev || i(d, d.prev) ? new Ka(e, e) : !d.prev.prev || i(d, d.prev.prev) ? a.findWordAt(e) : new Ka(oa(e.line, 0), Oa(a.doc, oa(e.line + 1, 0))), a.setSelection(f.anchor, f.head), a.focus(), Df(c)
-            }
-            g()
-        }), Jf(b.scroller, "touchcancel", g), Jf(b.scroller, "scroll", function () {
-            b.scroller.clientHeight && (Hc(a, b.scroller.scrollTop), Ic(a, b.scroller.scrollLeft, !0), Lf(a, "scroll", a))
-        }), Jf(b.scroller, "mousewheel", function (b) {
-            Mc(a, b)
-        }), Jf(b.scroller, "DOMMouseScroll", function (b) {
-            Mc(a, b)
-        }), Jf(b.wrapper, "scroll", function () {
-            b.wrapper.scrollTop = b.wrapper.scrollLeft = 0
-        }), b.dragFunctions = {
-            enter: function (b) {
-                Pf(a, b) || Gf(b)
-            },
-            over: function (b) {
-                Pf(a, b) || (Fc(a, b), Gf(b))
-            },
-            start: function (b) {
-                Ec(a, b)
-            },
-            drop: dc(a, Dc),
-            leave: function () {
-                Gc(a)
-            }
-        };
-        var j = b.input.getField();
-        Jf(j, "keyup", function (b) {
-            Wc.call(a, b)
-        }), Jf(j, "keydown", dc(a, Uc)), Jf(j, "keypress", dc(a, Xc)), Jf(j, "focus", ig(Zc, a)), Jf(j, "blur", ig($c, a))
-    }
-
-    function qc(a, b, c) {
-        var d = c && c != v.Init;
-        if (!b != !d) {
-            var e = a.display.dragFunctions,
-                f = b ? Jf : Kf;
-            f(a.display.scroller, "dragstart", e.start), f(a.display.scroller, "dragenter", e.enter), f(a.display.scroller, "dragover", e.over), f(a.display.scroller, "dragleave", e.leave), f(a.display.scroller, "drop", e.drop)
-        }
-    }
-
-    function rc(a) {
-        var b = a.display;
-        (b.lastWrapHeight != b.wrapper.clientHeight || b.lastWrapWidth != b.wrapper.clientWidth) && (b.cachedCharWidth = b.cachedTextHeight = b.cachedPaddingH = null, b.scrollbarsClipped = !1, a.setSize())
-    }
-
-    function sc(a, b) {
-        for (var c = Hf(b); c != a.wrapper; c = c.parentNode)
-            if (!c || 1 == c.nodeType && "true" == c.getAttribute("cm-ignore-events") || c.parentNode == a.sizer && c != a.mover) return !0
-    }
-
-    function tc(a, b, c, d) {
-        var e = a.display;
-        if (!c && "true" == Hf(b)
-            .getAttribute("cm-not-content")) return null;
-        var f, g, h = e.lineSpace.getBoundingClientRect();
-        try {
-            f = b.clientX - h.left, g = b.clientY - h.top
-        } catch (b) {
-            return null
-        }
-        var j, i = Ob(a, f, g);
-        if (d && 1 == i.xRel && (j = ff(a.doc, i.line)
-                .text)
-            .length == i.ch) {
-            var k = Zf(j, j.length, a.options.tabSize) - j.length;
-            i = oa(i.line, Math.max(0, Math.round((f - ob(a.display)
-                .left) / Sb(a.display)) - k))
-        }
-        return i
-    }
-
-    function uc(a) {
-        var b = this,
-            c = b.display;
-        if (!(c.activeTouch && c.input.supportsTouch() || Pf(b, a))) {
-            if (c.shift = a.shiftKey, sc(c, a)) return void(f || (c.scroller.draggable = !1, setTimeout(function () {
-                c.scroller.draggable = !0
-            }, 100)));
-            if (!Bc(b, a)) {
-                var d = tc(b, a);
-                switch (window.focus(), If(a)) {
-                case 1:
-                    b.state.selectingText ? b.state.selectingText(a) : d ? xc(b, a, d) : Hf(a) == c.scroller && Df(a);
-                    break;
-                case 2:
-                    f && (b.state.lastMiddleDown = +new Date), d && Ta(b.doc, d), setTimeout(function () {
-                        c.input.focus()
-                    }, 20), Df(a);
-                    break;
-                case 3:
-                    s ? _c(b, a) : Yc(b)
-                }
-            }
-        }
-    }
-
-    function xc(a, b, c) {
-        d ? setTimeout(ig(ta, a), 0) : a.curOp.focus = ug();
-        var f, e = +new Date;
-        wc && wc.time > e - 400 && 0 == pa(wc.pos, c) ? f = "triple" : vc && vc.time > e - 400 && 0 == pa(vc.pos, c) ? (f = "double", wc = {
-            time: e,
-            pos: c
-        }) : (f = "single", vc = {
-            time: e,
-            pos: c
-        });
-        var i, g = a.doc.sel,
-            h = o ? b.metaKey : b.ctrlKey;
-        a.options.dragDrop && Dg && !ua(a) && "single" == f && (i = g.contains(c)) > -1 && (pa((i = g.ranges[i])
-            .from(), c) < 0 || c.xRel > 0) && (pa(i.to(), c) > 0 || c.xRel < 0) ? yc(a, b, c, h) : zc(a, b, c, f, h)
-    }
-
-    function yc(a, b, c, g) {
-        var h = a.display,
-            i = +new Date,
-            j = dc(a, function (k) {
-                f && (h.scroller.draggable = !1), a.state.draggingText = !1, Kf(document, "mouseup", j), Kf(h.scroller, "drop", j), Math.abs(b.clientX - k.clientX) + Math.abs(b.clientY - k.clientY) < 10 && (Df(k), !g && +new Date - 200 < i && Ta(a.doc, c), f || d && 9 == e ? setTimeout(function () {
-                    document.body.focus(), h.input.focus()
-                }, 20) : h.input.focus())
-            });
-        f && (h.scroller.draggable = !0), a.state.draggingText = j, h.scroller.dragDrop && h.scroller.dragDrop(), Jf(document, "mouseup", j), Jf(h.scroller, "drop", j)
-    }
-
-    function zc(a, b, c, d, e) {
-        function o(b) {
-            if (0 != pa(n, b))
-                if (n = b, "rect" == d) {
-                    for (var e = [], f = a.options.tabSize, k = Zf(ff(g, c.line)
-                            .text, c.ch, f), l = Zf(ff(g, b.line)
-                            .text, b.ch, f), m = Math.min(k, l), o = Math.max(k, l), p = Math.min(c.line, b.line), q = Math.min(a.lastLine(), Math.max(c.line, b.line)); q >= p; p++) {
-                        var r = ff(g, p)
-                            .text,
-                            s = $f(r, m, f);
-                        m == o ? e.push(new Ka(oa(p, s), oa(p, s))) : r.length > s && e.push(new Ka(oa(p, s), oa(p, $f(r, o, f))))
-                    }
-                    e.length || e.push(new Ka(c, c)), Za(g, La(j.ranges.slice(0, i)
-                        .concat(e), i), {
-                        origin: "*mouse",
-                        scroll: !1
-                    }), a.scrollIntoView(b)
-                } else {
-                    var t = h,
-                        u = t.anchor,
-                        v = b;
-                    if ("single" != d) {
-                        if ("double" == d) var w = a.findWordAt(b);
-                        else var w = new Ka(oa(b.line, 0), Oa(g, oa(b.line + 1, 0)));
-                        pa(w.anchor, u) > 0 ? (v = w.head, u = sa(t.from(), w.anchor)) : (v = w.anchor, u = ra(t.to(), w.head))
-                    }
-                    var e = j.ranges.slice(0);
-                    e[i] = new Ka(Oa(g, u), v), Za(g, La(e, i), Wf)
-                }
-        }
-
-        function r(b) {
-            var c = ++q,
-                e = tc(a, b, !0, "rect" == d);
-            if (e)
-                if (0 != pa(e, n)) {
-                    a.curOp.focus = ug(), o(e);
-                    var h = P(f, g);
-                    (e.line >= h.to || e.line < h.from) && setTimeout(dc(a, function () {
-                        q == c && r(b)
-                    }), 150)
-                } else {
-                    var i = b.clientY < p.top ? -20 : b.clientY > p.bottom ? 20 : 0;
-                    i && setTimeout(dc(a, function () {
-                        q == c && (f.scroller.scrollTop += i, r(b))
-                    }), 50)
-                }
-        }
-
-        function s(b) {
-            a.state.selectingText = !1, q = 1 / 0, Df(b), f.input.focus(), Kf(document, "mousemove", t), Kf(document, "mouseup", u), g.history.lastSelOrigin = null
-        }
-        var f = a.display,
-            g = a.doc;
-        Df(b);
-        var h, i, j = g.sel,
-            k = j.ranges;
-        if (e && !b.shiftKey ? (i = g.sel.contains(c), h = i > -1 ? k[i] : new Ka(c, c)) : (h = g.sel.primary(), i = g.sel.primIndex), b.altKey) d = "rect", e || (h = new Ka(c, c)), c = tc(a, b, !0, !0), i = -1;
-        else if ("double" == d) {
-            var l = a.findWordAt(c);
-            h = a.display.shift || g.extend ? Sa(g, h, l.anchor, l.head) : l
-        } else if ("triple" == d) {
-            var m = new Ka(oa(c.line, 0), Oa(g, oa(c.line + 1, 0)));
-            h = a.display.shift || g.extend ? Sa(g, h, m.anchor, m.head) : m
-        } else h = Sa(g, h, c);
-        e ? -1 == i ? (i = k.length, Za(g, La(k.concat([h]), i), {
-            scroll: !1,
-            origin: "*mouse"
-        })) : k.length > 1 && k[i].empty() && "single" == d && !b.shiftKey ? (Za(g, La(k.slice(0, i)
-            .concat(k.slice(i + 1)), 0), {
-            scroll: !1,
-            origin: "*mouse"
-        }), j = g.sel) : Va(g, i, h, Wf) : (i = 0, Za(g, new Ja([h], 0), Wf), j = g.sel);
-        var n = c,
-            p = f.wrapper.getBoundingClientRect(),
-            q = 0,
-            t = dc(a, function (a) {
-                If(a) ? r(a) : s(a)
-            }),
-            u = dc(a, s);
-        a.state.selectingText = u, Jf(document, "mousemove", t), Jf(document, "mouseup", u)
-    }
-
-    function Ac(a, b, c, d, e) {
-        try {
-            var f = b.clientX,
-                g = b.clientY
-        } catch (b) {
-            return !1
-        }
-        if (f >= Math.floor(a.display.gutters.getBoundingClientRect()
-                .right)) return !1;
-        d && Df(b);
-        var h = a.display,
-            i = h.lineDiv.getBoundingClientRect();
-        if (g > i.bottom || !Rf(a, c)) return Ff(b);
-        g -= i.top - h.viewOffset;
-        for (var j = 0; j < a.options.gutters.length; ++j) {
-            var k = h.gutters.childNodes[j];
-            if (k && k.getBoundingClientRect()
-                .right >= f) {
-                var l = lf(a.doc, g),
-                    m = a.options.gutters[j];
-                return e(a, c, a, l, m, b), Ff(b)
-            }
-        }
-    }
-
-    function Bc(a, b) {
-        return Ac(a, b, "gutterClick", !0, Nf)
-    }
-
-    function Dc(a) {
-        var b = this;
-        if (Gc(b), !Pf(b, a) && !sc(b.display, a)) {
-            Df(a), d && (Cc = +new Date);
-            var c = tc(b, a, !0),
-                e = a.dataTransfer.files;
-            if (c && !ua(b))
-                if (e && e.length && window.FileReader && window.File)
-                    for (var f = e.length, g = Array(f), h = 0, i = function (a, d) {
-                            var e = new FileReader;
-                            e.onload = dc(b, function () {
-                                if (g[d] = e.result, ++h == f) {
-                                    c = Oa(b.doc, c);
-                                    var a = {
-                                        from: c,
-                                        to: c,
-                                        text: b.doc.splitLines(g.join(b.doc.lineSeparator())),
-                                        origin: "paste"
-                                    };
-                                    hd(b.doc, a), Ya(b.doc, Ma(c, bd(a)))
-                                }
-                            }), e.readAsText(a)
-                        }, j = 0; f > j; ++j) i(e[j], j);
-                else {
-                    if (b.state.draggingText && b.doc.sel.contains(c) > -1) return b.state.draggingText(a), void setTimeout(function () {
-                        b.display.input.focus()
-                    }, 20);
-                    try {
-                        var g = a.dataTransfer.getData("Text");
-                        if (g) {
-                            if (b.state.draggingText && !(o ? a.altKey : a.ctrlKey)) var k = b.listSelections();
-                            if ($a(b.doc, Ma(c, c)), k)
-                                for (var j = 0; j < k.length; ++j) nd(b.doc, "", k[j].anchor, k[j].head, "drag");
-                            b.replaceSelection(g, "around", "paste"), b.display.input.focus()
-                        }
-                    } catch (a) {}
-                }
-        }
-    }
-
-    function Ec(a, b) {
-        if (d && (!a.state.draggingText || +new Date - Cc < 100)) return void Gf(b);
-        if (!Pf(a, b) && !sc(a.display, b) && (b.dataTransfer.setData("Text", a.getSelection()), b.dataTransfer.setDragImage && !j)) {
-            var c = pg("img", null, null, "position: fixed; left: 0; top: 0;");
-            c.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==", i && (c.width = c.height = 1, a.display.wrapper.appendChild(c), c._top = c.offsetTop), b.dataTransfer.setDragImage(c, 0, 0), i && c.parentNode.removeChild(c)
-        }
-    }
-
-    function Fc(a, b) {
-        var c = tc(a, b);
-        if (c) {
-            var d = document.createDocumentFragment();
-            fb(a, c, d), a.display.dragCursor || (a.display.dragCursor = pg("div", null, "CodeMirror-cursors CodeMirror-dragcursors"), a.display.lineSpace.insertBefore(a.display.dragCursor, a.display.cursorDiv)), sg(a.display.dragCursor, d)
-        }
-    }
-
-    function Gc(a) {
-        a.display.dragCursor && (a.display.lineSpace.removeChild(a.display.dragCursor), a.display.dragCursor = null)
-    }
-
-    function Hc(b, c) {
-        Math.abs(b.doc.scrollTop - c) < 2 || (b.doc.scrollTop = c, a || Y(b, {
-            top: c
-        }), b.display.scroller.scrollTop != c && (b.display.scroller.scrollTop = c), b.display.scrollbars.setScrollTop(c), a && Y(b), ib(b, 100))
-    }
-
-    function Ic(a, b, c) {
-        (c ? b == a.doc.scrollLeft : Math.abs(a.doc.scrollLeft - b) < 2) || (b = Math.min(b, a.display.scroller.scrollWidth - a.display.scroller.clientWidth), a.doc.scrollLeft = b, Q(a), a.display.scroller.scrollLeft != b && (a.display.scroller.scrollLeft = b), a.display.scrollbars.setScrollLeft(b))
-    }
-
-    function Mc(b, c) {
-        var d = Lc(c),
-            e = d.x,
-            g = d.y,
-            h = b.display,
-            j = h.scroller;
-        if (e && j.scrollWidth > j.clientWidth || g && j.scrollHeight > j.clientHeight) {
-            if (g && o && f) a: for (var k = c.target, l = h.view; k != j; k = k.parentNode)
-                for (var m = 0; m < l.length; m++)
-                    if (l[m].node == k) {
-                        b.display.currentWheelTarget = k;
-                        break a
-                    }
-            if (e && !a && !i && null != Kc) return g && Hc(b, Math.max(0, Math.min(j.scrollTop + g * Kc, j.scrollHeight - j.clientHeight))), Ic(b, Math.max(0, Math.min(j.scrollLeft + e * Kc, j.scrollWidth - j.clientWidth))), Df(c), void(h.wheelStartX = null);
-            if (g && null != Kc) {
-                var n = g * Kc,
-                    p = b.doc.scrollTop,
-                    q = p + h.wrapper.clientHeight;
-                0 > n ? p = Math.max(0, p + n - 50) : q = Math.min(b.doc.height, q + n + 50), Y(b, {
-                    top: p,
-                    bottom: q
-                })
-            }
-            20 > Jc && (null == h.wheelStartX ? (h.wheelStartX = j.scrollLeft, h.wheelStartY = j.scrollTop, h.wheelDX = e, h.wheelDY = g, setTimeout(function () {
-                if (null != h.wheelStartX) {
-                    var a = j.scrollLeft - h.wheelStartX,
-                        b = j.scrollTop - h.wheelStartY,
-                        c = b && h.wheelDY && b / h.wheelDY || a && h.wheelDX && a / h.wheelDX;
-                    h.wheelStartX = h.wheelStartY = null, c && (Kc = (Kc * Jc + c) / (Jc + 1), ++Jc)
-                }
-            }, 200)) : (h.wheelDX += e, h.wheelDY += g))
-        }
-    }
-
-    function Nc(a, b, c) {
-        if ("string" == typeof b && (b = Ld[b], !b)) return !1;
-        a.display.input.ensurePolled();
-        var d = a.display.shift,
-            e = !1;
-        try {
-            ua(a) && (a.state.suppressEdits = !0), c && (a.display.shift = !1), e = b(a) != Uf
-        } finally {
-            a.display.shift = d, a.state.suppressEdits = !1
-        }
-        return e
-    }
-
-    function Oc(a, b, c) {
-        for (var d = 0; d < a.state.keyMaps.length; d++) {
-            var e = Od(b, a.state.keyMaps[d], c, a);
-            if (e) return e
-        }
-        return a.options.extraKeys && Od(b, a.options.extraKeys, c, a) || Od(b, a.options.keyMap, c, a)
-    }
-
-    function Qc(a, b, c, d) {
-        var e = a.state.keySeq;
-        if (e) {
-            if (Pd(b)) return "handled";
-            Pc.set(50, function () {
-                a.state.keySeq == e && (a.state.keySeq = null, a.display.input.reset())
-            }), b = e + " " + b
-        }
-        var f = Oc(a, b, d);
-        return "multi" == f && (a.state.keySeq = b), "handled" == f && Nf(a, "keyHandled", a, b, c), ("handled" == f || "multi" == f) && (Df(c), hb(a)), e && !f && /\'$/.test(b) ? (Df(c), !0) : !!f
-    }
-
-    function Rc(a, b) {
-        var c = Qd(b, !0);
-        return c ? b.shiftKey && !a.state.keySeq ? Qc(a, "Shift-" + c, b, function (b) {
-            return Nc(a, b, !0)
-        }) || Qc(a, c, b, function (b) {
-            return ("string" == typeof b ? /^go[A-Z]/.test(b) : b.motion) ? Nc(a, b) : void 0
-        }) : Qc(a, c, b, function (b) {
-            return Nc(a, b)
-        }) : !1
-    }
-
-    function Sc(a, b, c) {
-        return Qc(a, "'" + c + "'", b, function (b) {
-            return Nc(a, b, !0)
-        })
-    }
-
-    function Uc(a) {
-        var b = this;
-        if (b.curOp.focus = ug(), !Pf(b, a)) {
-            d && 11 > e && 27 == a.keyCode && (a.returnValue = !1);
-            var c = a.keyCode;
-            b.display.shift = 16 == c || a.shiftKey;
-            var f = Rc(b, a);
-            i && (Tc = f ? c : null, !f && 88 == c && !Kg && (o ? a.metaKey : a.ctrlKey) && b.replaceSelection("", null, "cut")), 18 != c || /\bCodeMirror-crosshair\b/.test(b.display.lineDiv.className) || Vc(b)
-        }
-    }
-
-    function Vc(a) {
-        function c(a) {
-            18 != a.keyCode && a.altKey || (wg(b, "CodeMirror-crosshair"), Kf(document, "keyup", c), Kf(document, "mouseover", c))
-        }
-        var b = a.display.lineDiv;
-        xg(b, "CodeMirror-crosshair"), Jf(document, "keyup", c), Jf(document, "mouseover", c)
-    }
-
-    function Wc(a) {
-        16 == a.keyCode && (this.doc.sel.shift = !1), Pf(this, a)
-    }
-
-    function Xc(a) {
-        var b = this;
-        if (!(sc(b.display, a) || Pf(b, a) || a.ctrlKey && !a.altKey || o && a.metaKey)) {
-            var c = a.keyCode,
-                d = a.charCode;
-            if (i && c == Tc) return Tc = null, void Df(a);
-            if (!i || a.which && !(a.which < 10) || !Rc(b, a)) {
-                var e = String.fromCharCode(null == d ? c : d);
-                Sc(b, a, e) || b.display.input.onKeyPress(a)
-            }
-        }
-    }
-
-    function Yc(a) {
-        a.state.delayingBlurEvent = !0, setTimeout(function () {
-            a.state.delayingBlurEvent && (a.state.delayingBlurEvent = !1, $c(a))
-        }, 100)
-    }
-
-    function Zc(a) {
-        a.state.delayingBlurEvent && (a.state.delayingBlurEvent = !1), "nocursor" != a.options.readOnly && (a.state.focused || (Lf(a, "focus", a), a.state.focused = !0, xg(a.display.wrapper, "CodeMirror-focused"), a.curOp || a.display.selForContextMenu == a.doc.sel || (a.display.input.reset(), f && setTimeout(function () {
-            a.display.input.reset(!0)
-        }, 20)), a.display.input.receivedFocus()), hb(a))
-    }
-
-    function $c(a) {
-        a.state.delayingBlurEvent || (a.state.focused && (Lf(a, "blur", a), a.state.focused = !1, wg(a.display.wrapper, "CodeMirror-focused")), clearInterval(a.display.blinker), setTimeout(function () {
-            a.state.focused || (a.display.shift = !1)
-        }, 150))
-    }
-
-    function _c(a, b) {
-        sc(a.display, b) || ad(a, b) || a.display.input.onContextMenu(b)
-    }
-
-    function ad(a, b) {
-        return Rf(a, "gutterContextMenu") ? Ac(a, b, "gutterContextMenu", !1, Lf) : !1
-    }
-
-    function cd(a, b) {
-        if (pa(a, b.from) < 0) return a;
-        if (pa(a, b.to) <= 0) return bd(b);
-        var c = a.line + b.text.length - (b.to.line - b.from.line) - 1,
-            d = a.ch;
-        return a.line == b.to.line && (d += bd(b)
-            .ch - b.to.ch), oa(c, d)
-    }
-
-    function dd(a, b) {
-        for (var c = [], d = 0; d < a.sel.ranges.length; d++) {
-            var e = a.sel.ranges[d];
-            c.push(new Ka(cd(e.anchor, b), cd(e.head, b)))
-        }
-        return La(c, a.sel.primIndex)
-    }
-
-    function ed(a, b, c) {
-        return a.line == b.line ? oa(c.line, a.ch - b.ch + c.ch) : oa(c.line + (a.line - b.line), a.ch)
-    }
-
-    function fd(a, b, c) {
-        for (var d = [], e = oa(a.first, 0), f = e, g = 0; g < b.length; g++) {
-            var h = b[g],
-                i = ed(h.from, e, f),
-                j = ed(bd(h), e, f);
-            if (e = h.to, f = j, "around" == c) {
-                var k = a.sel.ranges[g],
-                    l = pa(k.head, k.anchor) < 0;
-                d[g] = new Ka(l ? j : i, l ? i : j)
-            } else d[g] = new Ka(i, i)
-        }
-        return new Ja(d, a.sel.primIndex)
-    }
-
-    function gd(a, b, c) {
-        var d = {
-            canceled: !1,
-            from: b.from,
-            to: b.to,
-            text: b.text,
-            origin: b.origin,
-            cancel: function () {
-                this.canceled = !0
-            }
-        };
-        return c && (d.update = function (b, c, d, e) {
-            b && (this.from = Oa(a, b)), c && (this.to = Oa(a, c)), d && (this.text = d), void 0 !== e && (this.origin = e)
-        }), Lf(a, "beforeChange", a, d), a.cm && Lf(a.cm, "beforeChange", a.cm, d), d.canceled ? null : {
-            from: d.from,
-            to: d.to,
-            text: d.text,
-            origin: d.origin
-        }
-    }
-
-    function hd(a, b, c) {
-        if (a.cm) {
-            if (!a.cm.curOp) return dc(a.cm, hd)(a, b, c);
-            if (a.cm.state.suppressEdits) return
-        }
-        if (!(Rf(a, "beforeChange") || a.cm && Rf(a.cm, "beforeChange")) || (b = gd(a, b, !0))) {
-            var d = t && !c && ie(a, b.from, b.to);
-            if (d)
-                for (var e = d.length - 1; e >= 0; --e) id(a, {
-                    from: d[e].from,
-                    to: d[e].to,
-                    text: e ? [""] : b.text
-                });
-            else id(a, b)
-        }
-    }
-
-    function id(a, b) {
-        if (1 != b.text.length || "" != b.text[0] || 0 != pa(b.from, b.to)) {
-            var c = dd(a, b);
-            sf(a, b, c, a.cm ? a.cm.curOp.id : NaN), ld(a, b, c, fe(a, b));
-            var d = [];
-            df(a, function (a, c) {
-                c || -1 != dg(d, a.history) || (Cf(a.history, b), d.push(a.history)), ld(a, b, null, fe(a, b))
-            })
-        }
-    }
-
-    function jd(a, b, c) {
-        if (!a.cm || !a.cm.state.suppressEdits) {
-            for (var e, d = a.history, f = a.sel, g = "undo" == b ? d.done : d.undone, h = "undo" == b ? d.undone : d.done, i = 0; i < g.length && (e = g[i], c ? !e.ranges || e.equals(a.sel) : e.ranges); i++);
-            if (i != g.length) {
-                for (d.lastOrigin = d.lastSelOrigin = null; e = g.pop(), e.ranges;) {
-                    if (vf(e, h), c && !e.equals(a.sel)) return void Za(a, e, {
-                        clearRedo: !1
-                    });
-                    f = e
-                }
-                var j = [];
-                vf(f, h), h.push({
-                    changes: j,
-                    generation: d.generation
-                }), d.generation = e.generation || ++d.maxGeneration;
-                for (var k = Rf(a, "beforeChange") || a.cm && Rf(a.cm, "beforeChange"), i = e.changes.length - 1; i >= 0; --i) {
-                    var l = e.changes[i];
-                    if (l.origin = b, k && !gd(a, l, !1)) return void(g.length = 0);
-                    j.push(pf(a, l));
-                    var m = i ? dd(a, l) : bg(g);
-                    ld(a, l, m, he(a, l)), !i && a.cm && a.cm.scrollIntoView({
-                        from: l.from,
-                        to: bd(l)
-                    });
-                    var n = [];
-                    df(a, function (a, b) {
-                        b || -1 != dg(n, a.history) || (Cf(a.history, l), n.push(a.history)), ld(a, l, null, he(a, l))
-                    })
-                }
-            }
-        }
-    }
-
-    function kd(a, b) {
-        if (0 != b && (a.first += b, a.sel = new Ja(eg(a.sel.ranges, function (a) {
-                return new Ka(oa(a.anchor.line + b, a.anchor.ch), oa(a.head.line + b, a.head.ch))
-            }), a.sel.primIndex), a.cm)) {
-            ic(a.cm, a.first, a.first - b, b);
-            for (var c = a.cm.display, d = c.viewFrom; d < c.viewTo; d++) jc(a.cm, d, "gutter")
-        }
-    }
-
-    function ld(a, b, c, d) {
-        if (a.cm && !a.cm.curOp) return dc(a.cm, ld)(a, b, c, d);
-        if (b.to.line < a.first) return void kd(a, b.text.length - 1 - (b.to.line - b.from.line));
-        if (!(b.from.line > a.lastLine())) {
-            if (b.from.line < a.first) {
-                var e = b.text.length - 1 - (a.first - b.from.line);
-                kd(a, e), b = {
-                    from: oa(a.first, 0),
-                    to: oa(b.to.line + e, b.to.ch),
-                    text: [bg(b.text)],
-                    origin: b.origin
-                }
-            }
-            var f = a.lastLine();
-            b.to.line > f && (b = {
-                from: b.from,
-                to: oa(f, ff(a, f)
-                    .text.length),
-                text: [b.text[0]],
-                origin: b.origin
-            }), b.removed = gf(a, b.from, b.to), c || (c = dd(a, b)), a.cm ? md(a.cm, b, d) : Ye(a, b, d), $a(a, c, Vf)
-        }
-    }
-
-    function md(a, b, c) {
-        var d = a.doc,
-            e = a.display,
-            f = b.from,
-            g = b.to,
-            h = !1,
-            i = f.line;
-        a.options.lineWrapping || (i = kf(se(ff(d, f.line))), d.iter(i, g.line + 1, function (a) {
-            return a == e.maxLine ? (h = !0, !0) : void 0
-        })), d.sel.contains(b.from, b.to) > -1 && Qf(a), Ye(d, b, c, A(a)), a.options.lineWrapping || (d.iter(i, f.line + b.text.length, function (a) {
-            var b = G(a);
-            b > e.maxLineLength && (e.maxLine = a, e.maxLineLength = b, e.maxLineChanged = !0, h = !1)
-        }), h && (a.curOp.updateMaxLine = !0)), d.frontier = Math.min(d.frontier, f.line), ib(a, 400);
-        var j = b.text.length - (g.line - f.line) - 1;
-        b.full ? ic(a) : f.line != g.line || 1 != b.text.length || Xe(a.doc, b) ? ic(a, f.line, g.line + 1, j) : jc(a, f.line, "text");
-        var k = Rf(a, "changes"),
-            l = Rf(a, "change");
-        if (l || k) {
-            var m = {
-                from: f,
-                to: g,
-                text: b.text,
-                removed: b.removed,
-                origin: b.origin
-            };
-            l && Nf(a, "change", a, m), k && (a.curOp.changeObjs || (a.curOp.changeObjs = []))
-                .push(m)
-        }
-        a.display.selForContextMenu = null
-    }
-
-    function nd(a, b, c, d, e) {
-        if (d || (d = c), pa(d, c) < 0) {
-            var f = d;
-            d = c, c = f
-        }
-        "string" == typeof b && (b = a.splitLines(b)), hd(a, {
-            from: c,
-            to: d,
-            text: b,
-            origin: e
-        })
-    }
-
-    function od(a, b) {
-        if (!Pf(a, "scrollCursorIntoView")) {
-            var c = a.display,
-                d = c.sizer.getBoundingClientRect(),
-                e = null;
-            if (b.top + d.top < 0 ? e = !0 : b.bottom + d.top > (window.innerHeight || document.documentElement.clientHeight) && (e = !1), null != e && !l) {
-                var f = pg("div", "\u200b", null, "position: absolute; top: " + (b.top - c.viewOffset - mb(a.display)) + "px; height: " + (b.bottom - b.top + pb(a) + c.barHeight) + "px; left: " + b.left + "px; width: 2px;");
-                a.display.lineSpace.appendChild(f), f.scrollIntoView(e), a.display.lineSpace.removeChild(f)
-            }
-        }
-    }
-
-    function pd(a, b, c, d) {
-        null == d && (d = 0);
-        for (var e = 0; 5 > e; e++) {
-            var f = !1,
-                g = Lb(a, b),
-                h = c && c != b ? Lb(a, c) : g,
-                i = rd(a, Math.min(g.left, h.left), Math.min(g.top, h.top) - d, Math.max(g.left, h.left), Math.max(g.bottom, h.bottom) + d),
-                j = a.doc.scrollTop,
-                k = a.doc.scrollLeft;
-            if (null != i.scrollTop && (Hc(a, i.scrollTop), Math.abs(a.doc.scrollTop - j) > 1 && (f = !0)), null != i.scrollLeft && (Ic(a, i.scrollLeft), Math.abs(a.doc.scrollLeft - k) > 1 && (f = !0)), !f) break
-        }
-        return g
-    }
-
-    function qd(a, b, c, d, e) {
-        var f = rd(a, b, c, d, e);
-        null != f.scrollTop && Hc(a, f.scrollTop), null != f.scrollLeft && Ic(a, f.scrollLeft)
-    }
-
-    function rd(a, b, c, d, e) {
-        var f = a.display,
-            g = Rb(a.display);
-        0 > c && (c = 0);
-        var h = a.curOp && null != a.curOp.scrollTop ? a.curOp.scrollTop : f.scroller.scrollTop,
-            i = rb(a),
-            j = {};
-        e - c > i && (e = c + i);
-        var k = a.doc.height + nb(f),
-            l = g > c,
-            m = e > k - g;
-        if (h > c) j.scrollTop = l ? 0 : c;
-        else if (e > h + i) {
-            var n = Math.min(c, (m ? k : e) - i);
-            n != h && (j.scrollTop = n)
-        }
-        var o = a.curOp && null != a.curOp.scrollLeft ? a.curOp.scrollLeft : f.scroller.scrollLeft,
-            p = qb(a) - (a.options.fixedGutter ? f.gutters.offsetWidth : 0),
-            q = d - b > p;
-        return q && (d = b + p), 10 > b ? j.scrollLeft = 0 : o > b ? j.scrollLeft = Math.max(0, b - (q ? 0 : 10)) : d > p + o - 3 && (j.scrollLeft = d + (q ? 0 : 10) - p), j
-    }
-
-    function sd(a, b, c) {
-        (null != b || null != c) && ud(a), null != b && (a.curOp.scrollLeft = (null == a.curOp.scrollLeft ? a.doc.scrollLeft : a.curOp.scrollLeft) + b), null != c && (a.curOp.scrollTop = (null == a.curOp.scrollTop ? a.doc.scrollTop : a.curOp.scrollTop) + c)
-    }
-
-    function td(a) {
-        ud(a);
-        var b = a.getCursor(),
-            c = b,
-            d = b;
-        a.options.lineWrapping || (c = b.ch ? oa(b.line, b.ch - 1) : b, d = oa(b.line, b.ch + 1)), a.curOp.scrollToPos = {
-            from: c,
-            to: d,
-            margin: a.options.cursorScrollMargin,
-            isCursor: !0
-        }
-    }
-
-    function ud(a) {
-        var b = a.curOp.scrollToPos;
-        if (b) {
-            a.curOp.scrollToPos = null;
-            var c = Mb(a, b.from),
-                d = Mb(a, b.to),
-                e = rd(a, Math.min(c.left, d.left), Math.min(c.top, d.top) - b.margin, Math.max(c.right, d.right), Math.max(c.bottom, d.bottom) + b.margin);
-            a.scrollTo(e.scrollLeft, e.scrollTop)
-        }
-    }
-
-    function vd(a, b, c, d) {
-        var f, e = a.doc;
-        null == c && (c = "add"), "smart" == c && (e.mode.indent ? f = lb(a, b) : c = "prev");
-        var g = a.options.tabSize,
-            h = ff(e, b),
-            i = Zf(h.text, null, g);
-        h.stateAfter && (h.stateAfter = null);
-        var k, j = h.text.match(/^\s*/)[0];
-        if (d || /\S/.test(h.text)) {
-            if ("smart" == c && (k = e.mode.indent(f, h.text.slice(j.length), h.text), k == Uf || k > 150)) {
-                if (!d) return;
-                c = "prev"
-            }
-        } else k = 0, c = "not";
-        "prev" == c ? k = b > e.first ? Zf(ff(e, b - 1)
-            .text, null, g) : 0 : "add" == c ? k = i + a.options.indentUnit : "subtract" == c ? k = i - a.options.indentUnit : "number" == typeof c && (k = i + c), k = Math.max(0, k);
-        var l = "",
-            m = 0;
-        if (a.options.indentWithTabs)
-            for (var n = Math.floor(k / g); n; --n) m += g, l += "	";
-        if (k > m && (l += ag(k - m)), l != j) return nd(e, l, oa(b, 0), oa(b, j.length), "+input"), h.stateAfter = null, !0;
-        for (var n = 0; n < e.sel.ranges.length; n++) {
-            var o = e.sel.ranges[n];
-            if (o.head.line == b && o.head.ch < j.length) {
-                var m = oa(b, j.length);
-                Va(e, n, new Ka(m, m));
-                break
-            }
-        }
-    }
-
-    function wd(a, b, c, d) {
-        var e = b,
-            f = b;
-        return "number" == typeof b ? f = ff(a, Na(a, b)) : e = kf(b), null == e ? null : (d(f, e) && a.cm && jc(a.cm, e, c), f)
-    }
-
-    function xd(a, b) {
-        for (var c = a.doc.sel.ranges, d = [], e = 0; e < c.length; e++) {
-            for (var f = b(c[e]); d.length && pa(f.from, bg(d)
-                    .to) <= 0;) {
-                var g = d.pop();
-                if (pa(g.from, f.from) < 0) {
-                    f.from = g.from;
-                    break
-                }
-            }
-            d.push(f)
-        }
-        cc(a, function () {
-            for (var b = d.length - 1; b >= 0; b--) nd(a.doc, "", d[b].from, d[b].to, "+delete");
-            td(a)
-        })
-    }
-
-    function yd(a, b, c, d, e) {
-        function k() {
-            var b = f + c;
-            return b < a.first || b >= a.first + a.size ? j = !1 : (f = b, i = ff(a, b))
-        }
-
-        function l(a) {
-            var b = (e ? $g : _g)(i, g, c, !0);
-            if (null == b) {
-                if (a || !k()) return j = !1;
-                g = e ? (0 > c ? Sg : Rg)(i) : 0 > c ? i.text.length : 0
-            } else g = b;
-            return !0
-        }
-        var f = b.line,
-            g = b.ch,
-            h = c,
-            i = ff(a, f),
-            j = !0;
-        if ("char" == d) l();
-        else if ("column" == d) l(!0);
-        else if ("word" == d || "group" == d)
-            for (var m = null, n = "group" == d, o = a.cm && a.cm.getHelper(b, "wordChars"), p = !0; !(0 > c) || l(!p); p = !1) {
-                var q = i.text.charAt(g) || "\n",
-                    r = lg(q, o) ? "w" : n && "\n" == q ? "n" : !n || /\s/.test(q) ? null : "p";
-                if (!n || p || r || (r = "s"), m && m != r) {
-                    0 > c && (c = 1, l());
-                    break
-                }
-                if (r && (m = r), c > 0 && !l(!p)) break
-            }
-        var s = cb(a, oa(f, g), h, !0);
-        return j || (s.hitSide = !0), s
-    }
-
-    function zd(a, b, c, d) {
-        var g, e = a.doc,
-            f = b.left;
-        if ("page" == d) {
-            var h = Math.min(a.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
-            g = b.top + c * (h - (0 > c ? 1.5 : .5) * Rb(a.display))
-        } else "line" == d && (g = c > 0 ? b.bottom + 3 : b.top - 3);
-        for (;;) {
-            var i = Ob(a, f, g);
-            if (!i.outside) break;
-            if (0 > c ? 0 >= g : g >= e.height) {
-                i.hitSide = !0;
-                break
-            }
-            g += 5 * c
-        }
-        return i
-    }
-
-    function Cd(a, b, c, d) {
-        v.defaults[a] = b, c && (Bd[a] = d ? function (a, b, d) {
-            d != Dd && c(a, b, d)
-        } : c)
-    }
-
-    function Nd(a) {
-        for (var c, d, e, f, b = a.split(/-(?!$)/), a = b[b.length - 1], g = 0; g < b.length - 1; g++) {
-            var h = b[g];
-            if (/^(cmd|meta|m)$/i.test(h)) f = !0;
-            else if (/^a(lt)?$/i.test(h)) c = !0;
-            else if (/^(c|ctrl|control)$/i.test(h)) d = !0;
-            else {
-                if (!/^s(hift)$/i.test(h)) throw new Error("Unrecognized modifier name: " + h);
-                e = !0
-            }
-        }
-        return c && (a = "Alt-" + a), d && (a = "Ctrl-" + a), f && (a = "Cmd-" + a), e && (a = "Shift-" + a), a
-    }
-
-    function Rd(a) {
-        return "string" == typeof a ? Md[a] : a
-    }
-
-    function Vd(a, b, c, d, e) {
-        if (d && d.shared) return Xd(a, b, c, d, e);
-        if (a.cm && !a.cm.curOp) return dc(a.cm, Vd)(a, b, c, d, e);
-        var f = new Ud(a, e),
-            g = pa(b, c);
-        if (d && hg(d, f, !1), g > 0 || 0 == g && f.clearWhenEmpty !== !1) return f;
-        if (f.replacedWith && (f.collapsed = !0, f.widgetNode = pg("span", [f.replacedWith], "CodeMirror-widget"), d.handleMouseEvents || f.widgetNode.setAttribute("cm-ignore-events", "true"), d.insertLeft && (f.widgetNode.insertLeft = !0)), f.collapsed) {
-            if (re(a, b.line, b, c, f) || b.line != c.line && re(a, c.line, b, c, f)) throw new Error("Inserting collapsed marker partially overlapping an existing one");
-            u = !0
-        }
-        f.addToHistory && sf(a, {
-            from: b,
-            to: c,
-            origin: "markText"
-        }, a.sel, NaN);
-        var j, h = b.line,
-            i = a.cm;
-        if (a.iter(h, c.line + 1, function (a) {
-                i && f.collapsed && !i.options.lineWrapping && se(a) == i.display.maxLine && (j = !0), f.collapsed && h != b.line && jf(a, 0), ce(a, new _d(f, h == b.line ? b.ch : null, h == c.line ? c.ch : null)), ++h
-            }), f.collapsed && a.iter(b.line, c.line + 1, function (b) {
-                we(a, b) && jf(b, 0)
-            }), f.clearOnEnter && Jf(f, "beforeCursorEnter", function () {
-                f.clear()
-            }), f.readOnly && (t = !0, (a.history.done.length || a.history.undone.length) && a.clearHistory()), f.collapsed && (f.id = ++Td, f.atomic = !0), i) {
-            if (j && (i.curOp.updateMaxLine = !0), f.collapsed) ic(i, b.line, c.line + 1);
-            else if (f.className || f.title || f.startStyle || f.endStyle || f.css)
-                for (var k = b.line; k <= c.line; k++) jc(i, k, "text");
-            f.atomic && ab(i.doc), Nf(i, "markerAdded", i, f)
-        }
-        return f
-    }
-
-    function Xd(a, b, c, d, e) {
-        d = hg(d), d.shared = !1;
-        var f = [Vd(a, b, c, d, e)],
-            g = f[0],
-            h = d.widgetNode;
-        return df(a, function (a) {
-            h && (d.widgetNode = h.cloneNode(!0)), f.push(Vd(a, Oa(a, b), Oa(a, c), d, e));
-            for (var i = 0; i < a.linked.length; ++i)
-                if (a.linked[i].isParent) return;
-            g = bg(f)
-        }), new Wd(f, g)
-    }
-
-    function Yd(a) {
-        return a.findMarks(oa(a.first, 0), a.clipPos(oa(a.lastLine())), function (a) {
-            return a.parent
-        })
-    }
-
-    function Zd(a, b) {
-        for (var c = 0; c < b.length; c++) {
-            var d = b[c],
-                e = d.find(),
-                f = a.clipPos(e.from),
-                g = a.clipPos(e.to);
-            if (pa(f, g)) {
-                var h = Vd(a, f, g, d.primary, d.primary.type);
-                d.markers.push(h), h.parent = d
-            }
-        }
-    }
-
-    function $d(a) {
-        for (var b = 0; b < a.length; b++) {
-            var c = a[b],
-                d = [c.primary.doc];
-            df(c.primary.doc, function (a) {
-                d.push(a)
-            });
-            for (var e = 0; e < c.markers.length; e++) {
-                var f = c.markers[e]; - 1 == dg(d, f.doc) && (f.parent = null, c.markers.splice(e--, 1))
-            }
-        }
-    }
-
-    function _d(a, b, c) {
-        this.marker = a, this.from = b, this.to = c
-    }
-
-    function ae(a, b) {
-        if (a)
-            for (var c = 0; c < a.length; ++c) {
-                var d = a[c];
-                if (d.marker == b) return d
-            }
-    }
-
-    function be(a, b) {
-        for (var c, d = 0; d < a.length; ++d) a[d] != b && (c || (c = []))
-            .push(a[d]);
-        return c
-    }
-
-    function ce(a, b) {
-        a.markedSpans = a.markedSpans ? a.markedSpans.concat([b]) : [b], b.marker.attachLine(a)
-    }
-
-    function de(a, b, c) {
-        if (a)
-            for (var e, d = 0; d < a.length; ++d) {
-                var f = a[d],
-                    g = f.marker,
-                    h = null == f.from || (g.inclusiveLeft ? f.from <= b : f.from < b);
-                if (h || f.from == b && "bookmark" == g.type && (!c || !f.marker.insertLeft)) {
-                    var i = null == f.to || (g.inclusiveRight ? f.to >= b : f.to > b);
-                    (e || (e = []))
-                    .push(new _d(g, f.from, i ? null : f.to))
-                }
-            }
-        return e
-    }
-
-    function ee(a, b, c) {
-        if (a)
-            for (var e, d = 0; d < a.length; ++d) {
-                var f = a[d],
-                    g = f.marker,
-                    h = null == f.to || (g.inclusiveRight ? f.to >= b : f.to > b);
-                if (h || f.from == b && "bookmark" == g.type && (!c || f.marker.insertLeft)) {
-                    var i = null == f.from || (g.inclusiveLeft ? f.from <= b : f.from < b);
-                    (e || (e = []))
-                    .push(new _d(g, i ? null : f.from - b, null == f.to ? null : f.to - b))
-                }
-            }
-        return e
-    }
-
-    function fe(a, b) {
-        if (b.full) return null;
-        var c = Qa(a, b.from.line) && ff(a, b.from.line)
-            .markedSpans,
-            d = Qa(a, b.to.line) && ff(a, b.to.line)
-            .markedSpans;
-        if (!c && !d) return null;
-        var e = b.from.ch,
-            f = b.to.ch,
-            g = 0 == pa(b.from, b.to),
-            h = de(c, e, g),
-            i = ee(d, f, g),
-            j = 1 == b.text.length,
-            k = bg(b.text)
-            .length + (j ? e : 0);
-        if (h)
-            for (var l = 0; l < h.length; ++l) {
-                var m = h[l];
-                if (null == m.to) {
-                    var n = ae(i, m.marker);
-                    n ? j && (m.to = null == n.to ? null : n.to + k) : m.to = e
-                }
-            }
-        if (i)
-            for (var l = 0; l < i.length; ++l) {
-                var m = i[l];
-                if (null != m.to && (m.to += k), null == m.from) {
-                    var n = ae(h, m.marker);
-                    n || (m.from = k, j && (h || (h = []))
-                        .push(m))
-                } else m.from += k, j && (h || (h = []))
-                    .push(m)
-            }
-        h && (h = ge(h)), i && i != h && (i = ge(i));
-        var o = [h];
-        if (!j) {
-            var q, p = b.text.length - 2;
-            if (p > 0 && h)
-                for (var l = 0; l < h.length; ++l) null == h[l].to && (q || (q = []))
-                    .push(new _d(h[l].marker, null, null));
-            for (var l = 0; p > l; ++l) o.push(q);
-            o.push(i)
-        }
-        return o
-    }
-
-    function ge(a) {
-        for (var b = 0; b < a.length; ++b) {
-            var c = a[b];
-            null != c.from && c.from == c.to && c.marker.clearWhenEmpty !== !1 && a.splice(b--, 1)
-        }
-        return a.length ? a : null
-    }
-
-    function he(a, b) {
-        var c = yf(a, b),
-            d = fe(a, b);
-        if (!c) return d;
-        if (!d) return c;
-        for (var e = 0; e < c.length; ++e) {
-            var f = c[e],
-                g = d[e];
-            if (f && g) a: for (var h = 0; h < g.length; ++h) {
-                for (var i = g[h], j = 0; j < f.length; ++j)
-                    if (f[j].marker == i.marker) continue a;
-                f.push(i)
-            } else g && (c[e] = g)
-        }
-        return c
-    }
-
-    function ie(a, b, c) {
-        var d = null;
-        if (a.iter(b.line, c.line + 1, function (a) {
-                if (a.markedSpans)
-                    for (var b = 0; b < a.markedSpans.length; ++b) {
-                        var c = a.markedSpans[b].marker;
-                        !c.readOnly || d && -1 != dg(d, c) || (d || (d = []))
-                            .push(c)
-                    }
-            }), !d) return null;
-        for (var e = [{
-                from: b,
-                to: c
-            }], f = 0; f < d.length; ++f)
-            for (var g = d[f], h = g.find(0), i = 0; i < e.length; ++i) {
-                var j = e[i];
-                if (!(pa(j.to, h.from) < 0 || pa(j.from, h.to) > 0)) {
-                    var k = [i, 1],
-                        l = pa(j.from, h.from),
-                        m = pa(j.to, h.to);
-                    (0 > l || !g.inclusiveLeft && !l) && k.push({
-                        from: j.from,
-                        to: h.from
-                    }), (m > 0 || !g.inclusiveRight && !m) && k.push({
-                        from: h.to,
-                        to: j.to
-                    }), e.splice.apply(e, k), i += k.length - 1
-                }
-            }
-        return e
-    }
-
-    function je(a) {
-        var b = a.markedSpans;
-        if (b) {
-            for (var c = 0; c < b.length; ++c) b[c].marker.detachLine(a);
-            a.markedSpans = null
-        }
-    }
-
-    function ke(a, b) {
-        if (b) {
-            for (var c = 0; c < b.length; ++c) b[c].marker.attachLine(a);
-            a.markedSpans = b
-        }
-    }
-
-    function le(a) {
-        return a.inclusiveLeft ? -1 : 0
-    }
-
-    function me(a) {
-        return a.inclusiveRight ? 1 : 0
-    }
-
-    function ne(a, b) {
-        var c = a.lines.length - b.lines.length;
-        if (0 != c) return c;
-        var d = a.find(),
-            e = b.find(),
-            f = pa(d.from, e.from) || le(a) - le(b);
-        if (f) return -f;
-        var g = pa(d.to, e.to) || me(a) - me(b);
-        return g ? g : b.id - a.id
-    }
-
-    function oe(a, b) {
-        var d, c = u && a.markedSpans;
-        if (c)
-            for (var e, f = 0; f < c.length; ++f) e = c[f], e.marker.collapsed && null == (b ? e.from : e.to) && (!d || ne(d, e.marker) < 0) && (d = e.marker);
-        return d
-    }
-
-    function pe(a) {
-        return oe(a, !0)
-    }
-
-    function qe(a) {
-        return oe(a, !1)
-    }
-
-    function re(a, b, c, d, e) {
-        var f = ff(a, b),
-            g = u && f.markedSpans;
-        if (g)
-            for (var h = 0; h < g.length; ++h) {
-                var i = g[h];
-                if (i.marker.collapsed) {
-                    var j = i.marker.find(0),
-                        k = pa(j.from, c) || le(i.marker) - le(e),
-                        l = pa(j.to, d) || me(i.marker) - me(e);
-                    if (!(k >= 0 && 0 >= l || 0 >= k && l >= 0) && (0 >= k && (pa(j.to, c) > 0 || i.marker.inclusiveRight && e.inclusiveLeft) || k >= 0 && (pa(j.from, d) < 0 || i.marker.inclusiveLeft && e.inclusiveRight))) return !0
-                }
-            }
-    }
-
-    function se(a) {
-        for (var b; b = pe(a);) a = b.find(-1, !0)
-            .line;
-        return a
-    }
-
-    function te(a) {
-        for (var b, c; b = qe(a);) a = b.find(1, !0)
-            .line, (c || (c = []))
-            .push(a);
-        return c
-    }
-
-    function ue(a, b) {
-        var c = ff(a, b),
-            d = se(c);
-        return c == d ? b : kf(d)
-    }
-
-    function ve(a, b) {
-        if (b > a.lastLine()) return b;
-        var d, c = ff(a, b);
-        if (!we(a, c)) return b;
-        for (; d = qe(c);) c = d.find(1, !0)
-            .line;
-        return kf(c) + 1
-    }
-
-    function we(a, b) {
-        var c = u && b.markedSpans;
-        if (c)
-            for (var d, e = 0; e < c.length; ++e)
-                if (d = c[e], d.marker.collapsed) {
-                    if (null == d.from) return !0;
-                    if (!d.marker.widgetNode && 0 == d.from && d.marker.inclusiveLeft && xe(a, b, d)) return !0
-                }
-    }
-
-    function xe(a, b, c) {
-        if (null == c.to) {
-            var d = c.marker.find(1, !0);
-            return xe(a, d.line, ae(d.line.markedSpans, c.marker))
-        }
-        if (c.marker.inclusiveRight && c.to == b.text.length) return !0;
-        for (var e, f = 0; f < b.markedSpans.length; ++f)
-            if (e = b.markedSpans[f], e.marker.collapsed && !e.marker.widgetNode && e.from == c.to && (null == e.to || e.to != c.from) && (e.marker.inclusiveLeft || c.marker.inclusiveRight) && xe(a, b, e)) return !0
-    }
-
-    function ze(a, b, c) {
-        mf(b) < (a.curOp && a.curOp.scrollTop || a.doc.scrollTop) && sd(a, null, c)
-    }
-
-    function Ae(a) {
-        if (null != a.height) return a.height;
-        var b = a.doc.cm;
-        if (!b) return 0;
-        if (!tg(document.body, a.node)) {
-            var c = "position: relative;";
-            a.coverGutter && (c += "margin-left: -" + b.display.gutters.offsetWidth + "px;"), a.noHScroll && (c += "width: " + b.display.wrapper.clientWidth + "px;"), sg(b.display.measure, pg("div", [a.node], null, c))
-        }
-        return a.height = a.node.offsetHeight
-    }
-
-    function Be(a, b, c, d) {
-        var e = new ye(a, c, d),
-            f = a.cm;
-        return f && e.noHScroll && (f.display.alignWidgets = !0), wd(a, b, "widget", function (b) {
-            var c = b.widgets || (b.widgets = []);
-            if (null == e.insertAt ? c.push(e) : c.splice(Math.min(c.length - 1, Math.max(0, e.insertAt)), 0, e), e.line = b, f && !we(a, b)) {
-                var d = mf(b) < a.scrollTop;
-                jf(b, b.height + Ae(e)), d && sd(f, null, e.height), f.curOp.forceUpdate = !0
-            }
-            return !0
-        }), e
-    }
-
-    function De(a, b, c, d) {
-        a.text = b, a.stateAfter && (a.stateAfter = null), a.styles && (a.styles = null), null != a.order && (a.order = null), je(a), ke(a, c);
-        var e = d ? d(a) : 1;
-        e != a.height && jf(a, e)
-    }
-
-    function Ee(a) {
-        a.parent = null, je(a)
-    }
-
-    function Fe(a, b) {
-        if (a)
-            for (;;) {
-                var c = a.match(/(?:^|\s+)line-(background-)?(\S+)/);
-                if (!c) break;
-                a = a.slice(0, c.index) + a.slice(c.index + c[0].length);
-                var d = c[1] ? "bgClass" : "textClass";
-                null == b[d] ? b[d] = c[2] : new RegExp("(?:^|s)" + c[2] + "(?:$|s)")
-                    .test(b[d]) || (b[d] += " " + c[2])
-            }
-        return a
-    }
-
-    function Ge(a, b) {
-        if (a.blankLine) return a.blankLine(b);
-        if (a.innerMode) {
-            var c = v.innerMode(a, b);
-            return c.mode.blankLine ? c.mode.blankLine(c.state) : void 0
-        }
-    }
-
-    function He(a, b, c, d) {
-        for (var e = 0; 10 > e; e++) {
-            d && (d[0] = v.innerMode(a, c)
-                .mode);
-            var f = a.token(b, c);
-            if (b.pos > b.start) return f
-        }
-        throw new Error("Mode " + a.name + " failed to advance stream.")
-    }
-
-    function Ie(a, b, c, d) {
-        function e(a) {
-            return {
-                start: k.start,
-                end: k.pos,
-                string: k.current(),
-                type: h || null,
-                state: a ? Jd(f.mode, j) : j
-            }
-        }
-        var h, f = a.doc,
-            g = f.mode;
-        b = Oa(f, b);
-        var l, i = ff(f, b.line),
-            j = lb(a, b.line, c),
-            k = new Sd(i.text, a.options.tabSize);
-        for (d && (l = []);
-            (d || k.pos < b.ch) && !k.eol();) k.start = k.pos, h = He(g, k, j), d && l.push(e(!0));
-        return d ? l : e()
-    }
-
-    function Je(a, b, c, d, e, f, g) {
-        var h = c.flattenSpans;
-        null == h && (h = a.options.flattenSpans);
-        var l, i = 0,
-            j = null,
-            k = new Sd(b, a.options.tabSize),
-            m = a.options.addModeClass && [null];
-        for ("" == b && Fe(Ge(c, d), f); !k.eol();) {
-            if (k.pos > a.options.maxHighlightLength ? (h = !1, g && Me(a, b, d, k.pos), k.pos = b.length, l = null) : l = Fe(He(c, k, d, m), f), m) {
-                var n = m[0].name;
-                n && (l = "m-" + (l ? n + " " + l : n))
-            }
-            if (!h || j != l) {
-                for (; i < k.start;) i = Math.min(k.start, i + 5e4), e(i, j);
-                j = l
-            }
-            k.start = k.pos
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-            var o = Math.min(k.pos, i + 5e4);
-            e(o, j), i = o
-        }
-    }
-
-    function Ke(a, b, c, d) {
-        var e = [a.state.modeGen],
-            f = {};
-        Je(a, b.text, a.doc.mode, c, function (a, b) {
-            e.push(a, b)
-        }, f, d);
-        for (var g = 0; g < a.state.overlays.length; ++g) {
-            var h = a.state.overlays[g],
-                i = 1,
-                j = 0;
-            Je(a, b.text, h.mode, !0, function (a, b) {
-                for (var c = i; a > j;) {
-                    var d = e[i];
-                    d > a && e.splice(i, 1, a, e[i + 1], d), i += 2, j = Math.min(a, d)
-                }
-                if (b)
-                    if (h.opaque) e.splice(c, i - c, a, "cm-overlay " + b), i = c + 2;
-                    else
-                        for (; i > c; c += 2) {
-                            var f = e[c + 1];
-                            e[c + 1] = (f ? f + " " : "") + "cm-overlay " + b
-                        }
-            }, f)
-        }
-        return {
-            styles: e,
-            classes: f.bgClass || f.textClass ? f : null
-        }
-    }
-
-    function Le(a, b, c) {
-        if (!b.styles || b.styles[0] != a.state.modeGen) {
-            var d = lb(a, kf(b)),
-                e = Ke(a, b, b.text.length > a.options.maxHighlightLength ? Jd(a.doc.mode, d) : d);
-            b.stateAfter = d, b.styles = e.styles, e.classes ? b.styleClasses = e.classes : b.styleClasses && (b.styleClasses = null), c === a.doc.frontier && a.doc.frontier++
-        }
-        return b.styles
-    }
-
-    function Me(a, b, c, d) {
-        var e = a.doc.mode,
-            f = new Sd(b, a.options.tabSize);
-        for (f.start = f.pos = d || 0, "" == b && Ge(e, c); !f.eol();) He(e, f, c), f.start = f.pos
-    }
-
-    function Pe(a, b) {
-        if (!a || /^\s*$/.test(a)) return null;
-        var c = b.addModeClass ? Oe : Ne;
-        return c[a] || (c[a] = a.replace(/\S+/g, "cm-$&"))
-    }
-
-    function Qe(a, b) {
-        var c = pg("span", null, null, f ? "padding-right: .1px" : null),
-            e = {
-                pre: pg("pre", [c], "CodeMirror-line"),
-                content: c,
-                col: 0,
-                pos: 0,
-                cm: a,
-                splitSpaces: (d || f) && a.getOption("lineWrapping")
-            };
-        b.measure = {};
-        for (var g = 0; g <= (b.rest ? b.rest.length : 0); g++) {
-            var i, h = g ? b.rest[g - 1] : b.line;
-            e.pos = 0, e.addToken = Se, Hg(a.display.measure) && (i = nf(h)) && (e.addToken = Ue(e.addToken, i)), e.map = [];
-            var j = b != a.display.externalMeasured && kf(h);
-            We(h, e, Le(a, h, j)), h.styleClasses && (h.styleClasses.bgClass && (e.bgClass = yg(h.styleClasses.bgClass, e.bgClass || "")), h.styleClasses.textClass && (e.textClass = yg(h.styleClasses.textClass, e.textClass || ""))), 0 == e.map.length && e.map.push(0, 0, e.content.appendChild(Fg(a.display.measure))), 0 == g ? (b.measure.map = e.map, b.measure.cache = {}) : ((b.measure.maps || (b.measure.maps = []))
-                .push(e.map), (b.measure.caches || (b.measure.caches = []))
-                .push({}))
-        }
-        return f && /\bcm-tab\b/.test(e.content.lastChild.className) && (e.content.className = "cm-tab-wrap-hack"), Lf(a, "renderLine", a, b.line, e.pre), e.pre.className && (e.textClass = yg(e.pre.className, e.textClass || "")), e
-    }
-
-    function Re(a) {
-        var b = pg("span", "\u2022", "cm-invalidchar");
-        return b.title = "\\u" + a.charCodeAt(0)
-            .toString(16), b.setAttribute("aria-label", b.title), b
-    }
-
-    function Se(a, b, c, f, g, h, i) {
-        if (b) {
-            var j = a.splitSpaces ? b.replace(/ {3,}/g, Te) : b,
-                k = a.cm.state.specialChars,
-                l = !1;
-            if (k.test(b))
-                for (var m = document.createDocumentFragment(), n = 0;;) {
-                    k.lastIndex = n;
-                    var o = k.exec(b),
-                        p = o ? o.index - n : b.length - n;
-                    if (p) {
-                        var q = document.createTextNode(j.slice(n, n + p));
-                        d && 9 > e ? m.appendChild(pg("span", [q])) : m.appendChild(q), a.map.push(a.pos, a.pos + p, q), a.col += p, a.pos += p
-                    }
-                    if (!o) break;
-                    if (n += p + 1, "	" == o[0]) {
-                        var r = a.cm.options.tabSize,
-                            s = r - a.col % r,
-                            q = m.appendChild(pg("span", ag(s), "cm-tab"));
-                        q.setAttribute("role", "presentation"), q.setAttribute("cm-text", "	"), a.col += s
-                    } else if ("\r" == o[0] || "\n" == o[0]) {
-                        var q = m.appendChild(pg("span", "\r" == o[0] ? "\u240d" : "\u2424", "cm-invalidchar"));
-                        q.setAttribute("cm-text", o[0]), a.col += 1
-                    } else {
-                        var q = a.cm.options.specialCharPlaceholder(o[0]);
-                        q.setAttribute("cm-text", o[0]), d && 9 > e ? m.appendChild(pg("span", [q])) : m.appendChild(q), a.col += 1
-                    }
-                    a.map.push(a.pos, a.pos + 1, q), a.pos++
-                } else {
-                    a.col += b.length;
-                    var m = document.createTextNode(j);
-                    a.map.push(a.pos, a.pos + b.length, m), d && 9 > e && (l = !0), a.pos += b.length
-                }
-            if (c || f || g || l || i) {
-                var t = c || "";
-                f && (t += f), g && (t += g);
-                var u = pg("span", [m], t, i);
-                return h && (u.title = h), a.content.appendChild(u)
-            }
-            a.content.appendChild(m)
-        }
-    }
-
-    function Te(a) {
-        for (var b = " ", c = 0; c < a.length - 2; ++c) b += c % 2 ? " " : "\xa0";
-        return b += " "
-    }
-
-    function Ue(a, b) {
-        return function (c, d, e, f, g, h, i) {
-            e = e ? e + " cm-force-border" : "cm-force-border";
-            for (var j = c.pos, k = j + d.length;;) {
-                for (var l = 0; l < b.length; l++) {
-                    var m = b[l];
-                    if (m.to > j && m.from <= j) break
-                }
-                if (m.to >= k) return a(c, d, e, f, g, h, i);
-                a(c, d.slice(0, m.to - j), e, f, null, h, i), f = null, d = d.slice(m.to - j), j = m.to
-            }
-        }
-    }
-
-    function Ve(a, b, c, d) {
-        var e = !d && c.widgetNode;
-        e && a.map.push(a.pos, a.pos + b, e), !d && a.cm.display.input.needsContentAttribute && (e || (e = a.content.appendChild(document.createElement("span"))), e.setAttribute("cm-marker", c.id)), e && (a.cm.display.input.setUneditable(e), a.content.appendChild(e)), a.pos += b
-    }
-
-    function We(a, b, c) {
-        var d = a.markedSpans,
-            e = a.text,
-            f = 0;
-        if (d)
-            for (var k, l, n, o, p, q, r, h = e.length, i = 0, g = 1, j = "", m = 0;;) {
-                if (m == i) {
-                    n = o = p = q = l = "", r = null, m = 1 / 0;
-                    for (var s = [], t = 0; t < d.length; ++t) {
-                        var u = d[t],
-                            v = u.marker;
-                        "bookmark" == v.type && u.from == i && v.widgetNode ? s.push(v) : u.from <= i && (null == u.to || u.to > i || v.collapsed && u.to == i && u.from == i) ? (null != u.to && u.to != i && m > u.to && (m = u.to, o = ""), v.className && (n += " " + v.className), v.css && (l = v.css), v.startStyle && u.from == i && (p += " " + v.startStyle), v.endStyle && u.to == m && (o += " " + v.endStyle), v.title && !q && (q = v.title), v.collapsed && (!r || ne(r.marker, v) < 0) && (r = u)) : u.from > i && m > u.from && (m = u.from)
-                    }
-                    if (r && (r.from || 0) == i) {
-                        if (Ve(b, (null == r.to ? h + 1 : r.to) - i, r.marker, null == r.from), null == r.to) return;
-                        r.to == i && (r = !1)
-                    }
-                    if (!r && s.length)
-                        for (var t = 0; t < s.length; ++t) Ve(b, 0, s[t])
-                }
-                if (i >= h) break;
-                for (var w = Math.min(h, m);;) {
-                    if (j) {
-                        var x = i + j.length;
-                        if (!r) {
-                            var y = x > w ? j.slice(0, w - i) : j;
-                            b.addToken(b, y, k ? k + n : n, p, i + y.length == m ? o : "", q, l)
-                        }
-                        if (x >= w) {
-                            j = j.slice(w - i), i = w;
-                            break
-                        }
-                        i = x, p = ""
-                    }
-                    j = e.slice(f, f = c[g++]), k = Pe(c[g++], b.cm.options)
-                }
-            } else
-                for (var g = 1; g < c.length; g += 2) b.addToken(b, e.slice(f, f = c[g]), Pe(c[g + 1], b.cm.options))
-    }
-
-    function Xe(a, b) {
-        return 0 == b.from.ch && 0 == b.to.ch && "" == bg(b.text) && (!a.cm || a.cm.options.wholeLineUpdateBefore)
-    }
-
-    function Ye(a, b, c, d) {
-        function e(a) {
-            return c ? c[a] : null
-        }
-
-        function f(a, c, e) {
-            De(a, c, e, d), Nf(a, "change", a, b)
-        }
-
-        function g(a, b) {
-            for (var c = a, f = []; b > c; ++c) f.push(new Ce(j[c], e(c), d));
-            return f
-        }
-        var h = b.from,
-            i = b.to,
-            j = b.text,
-            k = ff(a, h.line),
-            l = ff(a, i.line),
-            m = bg(j),
-            n = e(j.length - 1),
-            o = i.line - h.line;
-        if (b.full) a.insert(0, g(0, j.length)), a.remove(j.length, a.size - j.length);
-        else if (Xe(a, b)) {
-            var p = g(0, j.length - 1);
-            f(l, l.text, n), o && a.remove(h.line, o), p.length && a.insert(h.line, p)
-        } else if (k == l)
-            if (1 == j.length) f(k, k.text.slice(0, h.ch) + m + k.text.slice(i.ch), n);
-            else {
-                var p = g(1, j.length - 1);
-                p.push(new Ce(m + k.text.slice(i.ch), n, d)), f(k, k.text.slice(0, h.ch) + j[0], e(0)), a.insert(h.line + 1, p)
-            } else if (1 == j.length) f(k, k.text.slice(0, h.ch) + j[0] + l.text.slice(i.ch), e(0)), a.remove(h.line + 1, o);
-        else {
-            f(k, k.text.slice(0, h.ch) + j[0], e(0)), f(l, m + l.text.slice(i.ch), n);
-            var p = g(1, j.length - 1);
-            o > 1 && a.remove(h.line + 1, o - 1), a.insert(h.line + 1, p)
-        }
-        Nf(a, "change", a, b)
-    }
-
-    function Ze(a) {
-        this.lines = a, this.parent = null;
-        for (var b = 0, c = 0; b < a.length; ++b) a[b].parent = this, c += a[b].height;
-        this.height = c
-    }
-
-    function $e(a) {
-        this.children = a;
-        for (var b = 0, c = 0, d = 0; d < a.length; ++d) {
-            var e = a[d];
-            b += e.chunkSize(), c += e.height, e.parent = this
-        }
-        this.size = b, this.height = c, this.parent = null
-    }
-
-    function df(a, b, c) {
-        function d(a, e, f) {
-            if (a.linked)
-                for (var g = 0; g < a.linked.length; ++g) {
-                    var h = a.linked[g];
-                    if (h.doc != e) {
-                        var i = f && h.sharedHist;
-                        (!c || i) && (b(h.doc, i), d(h.doc, a, i))
-                    }
-                }
-        }
-        d(a, null, !0)
-    }
-
-    function ef(a, b) {
-        if (b.cm) throw new Error("This document is already in use.");
-        a.doc = b, b.cm = a, B(a), x(a), a.options.lineWrapping || H(a), a.options.mode = b.modeOption, ic(a)
-    }
-
-    function ff(a, b) {
-        if (b -= a.first, 0 > b || b >= a.size) throw new Error("There is no line " + (b + a.first) + " in the document.");
-        for (var c = a; !c.lines;)
-            for (var d = 0;; ++d) {
-                var e = c.children[d],
-                    f = e.chunkSize();
-                if (f > b) {
-                    c = e;
-                    break
-                }
-                b -= f
-            }
-        return c.lines[b]
-    }
-
-    function gf(a, b, c) {
-        var d = [],
-            e = b.line;
-        return a.iter(b.line, c.line + 1, function (a) {
-            var f = a.text;
-            e == c.line && (f = f.slice(0, c.ch)), e == b.line && (f = f.slice(b.ch)), d.push(f), ++e
-        }), d
-    }
-
-    function hf(a, b, c) {
-        var d = [];
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-            d.push(a.text)
-        }), d
-    }
-
-    function jf(a, b) {
-        var c = b - a.height;
-        if (c)
-            for (var d = a; d; d = d.parent) d.height += c
-    }
-
-    function kf(a) {
-        if (null == a.parent) return null;
-        for (var b = a.parent, c = dg(b.lines, a), d = b.parent; d; b = d, d = d.parent)
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-        return c + b.first
-    }
-
-    function lf(a, b) {
-        var c = a.first;
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-                var e = a.children[d],
-                    f = e.height;
-                if (f > b) {
-                    a = e;
-                    continue a
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-                b -= f, c += e.chunkSize()
-            }
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-        for (var d = 0; d < a.lines.length; ++d) {
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-                h = g.height;
-            if (h > b) break;
-            b -= h
-        }
-        return c + d
-    }
-
-    function mf(a) {
-        a = se(a);
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-            var e = c.lines[d];
-            if (e == a) break;
-            b += e.height
-        }
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-                var g = f.children[d];
-                if (g == c) break;
-                b += g.height
-            }
-        return b
-    }
-
-    function nf(a) {
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-    }
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-    function of(a) {
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-    }
-
-    function pf(a, b) {
-        var c = {
-            from: qa(b.from),
-            to: bd(b),
-            text: gf(a, b.from, b.to)
-        };
-        return wf(a, c, b.from.line, b.to.line + 1), df(a, function (a) {
-            wf(a, c, b.from.line, b.to.line + 1)
-        }, !0), c
-    }
-
-    function qf(a) {
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-            var b = bg(a);
-            if (!b.ranges) break;
-            a.pop()
-        }
-    }
-
-    function rf(a, b) {
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-            .ranges ? bg(a.done) : a.done.length > 1 && !a.done[a.done.length - 2].ranges ? (a.done.pop(), bg(a.done)) : void 0
-    }
-
-    function sf(a, b, c, d) {
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-        e.undone.length = 0;
-        var g, f = +new Date;
-        if ((e.lastOp == d || e.lastOrigin == b.origin && b.origin && ("+" == b.origin.charAt(0) && a.cm && e.lastModTime > f - a.cm.options.historyEventDelay || "*" == b.origin.charAt(0))) && (g = rf(e, e.lastOp == d))) {
-            var h = bg(g.changes);
-            0 == pa(b.from, b.to) && 0 == pa(b.from, h.to) ? h.to = bd(b) : g.changes.push(pf(a, b))
-        } else {
-            var i = bg(e.done);
-            for (i && i.ranges || vf(a.sel, e.done), g = {
-                    changes: [pf(a, b)],
-                    generation: e.generation
-                }, e.done.push(g); e.done.length > e.undoDepth;) e.done.shift(), e.done[0].ranges || e.done.shift()
-        }
-        e.done.push(c), e.generation = ++e.maxGeneration, e.lastModTime = e.lastSelTime = f, e.lastOp = e.lastSelOp = d, e.lastOrigin = e.lastSelOrigin = b.origin, h || Lf(a, "historyAdded")
-    }
-
-    function tf(a, b, c, d) {
-        var e = b.charAt(0);
-        return "*" == e || "+" == e && c.ranges.length == d.ranges.length && c.somethingSelected() == d.somethingSelected() && new Date - a.history.lastSelTime <= (a.cm ? a.cm.options.historyEventDelay : 500)
-    }
-
-    function uf(a, b, c, d) {
-        var e = a.history,
-            f = d && d.origin;
-        c == e.lastSelOp || f && e.lastSelOrigin == f && (e.lastModTime == e.lastSelTime && e.lastOrigin == f || tf(a, f, bg(e.done), b)) ? e.done[e.done.length - 1] = b : vf(b, e.done), e.lastSelTime = +new Date, e.lastSelOrigin = f, e.lastSelOp = c, d && d.clearRedo !== !1 && qf(e.undone)
-    }
-
-    function vf(a, b) {
-        var c = bg(b);
-        c && c.ranges && c.equals(a) || b.push(a)
-    }
-
-    function wf(a, b, c, d) {
-        var e = b["spans_" + a.id],
-            f = 0;
-        a.iter(Math.max(a.first, c), Math.min(a.first + a.size, d), function (c) {
-            c.markedSpans && ((e || (e = b["spans_" + a.id] = {}))[f] = c.markedSpans), ++f
-        })
-    }
-
-    function xf(a) {
-        if (!a) return null;
-        for (var c, b = 0; b < a.length; ++b) a[b].marker.explicitlyCleared ? c || (c = a.slice(0, b)) : c && c.push(a[b]);
-        return c ? c.length ? c : null : a
-    }
-
-    function yf(a, b) {
-        var c = b["spans_" + a.id];
-        if (!c) return null;
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-        return e
-    }
-
-    function zf(a, b, c) {
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-            var f = a[d];
-            if (f.ranges) e.push(c ? Ja.prototype.deepCopy.call(f) : f);
-            else {
-                var g = f.changes,
-                    h = [];
-                e.push({
-                    changes: h
-                });
-                for (var i = 0; i < g.length; ++i) {
-                    var k, j = g[i];
-                    if (h.push({
-                            from: j.from,
-                            to: j.to,
-                            text: j.text
-                        }), b)
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-                }
-            }
-        }
-        return e
-    }
-
-    function Af(a, b, c, d) {
-        c < a.line ? a.line += d : b < a.line && (a.line = b, a.ch = 0)
-    }
-
-    function Bf(a, b, c, d) {
-        for (var e = 0; e < a.length; ++e) {
-            var f = a[e],
-                g = !0;
-            if (f.ranges) {
-                f.copied || (f = a[e] = f.deepCopy(), f.copied = !0);
-                for (var h = 0; h < f.ranges.length; h++) Af(f.ranges[h].anchor, b, c, d), Af(f.ranges[h].head, b, c, d)
-            } else {
-                for (var h = 0; h < f.changes.length; ++h) {
-                    var i = f.changes[h];
-                    if (c < i.from.line) i.from = oa(i.from.line + d, i.from.ch), i.to = oa(i.to.line + d, i.to.ch);
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-                        g = !1;
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-                    }
-                }
-                g || (a.splice(0, e + 1), e = 0)
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-        }
-    }
-
-    function Cf(a, b) {
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-    }
-
-    function Ff(a) {
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-    }
-
-    function Hf(a) {
-        return a.target || a.srcElement
-    }
-
-    function If(a) {
-        var b = a.which;
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-    }
-
-    function Nf(a, b) {
-        function f(a) {
-            return function () {
-                a.apply(null, d)
-            }
-        }
-        var c = a._handlers && a._handlers[b];
-        if (c) {
-            var e, d = Array.prototype.slice.call(arguments, 2);
-            Tb ? e = Tb.delayedCallbacks : Mf ? e = Mf : (e = Mf = [], setTimeout(Of, 0));
-            for (var g = 0; g < c.length; ++g) e.push(f(c[g]))
-        }
-    }
-
-    function Of() {
-        var a = Mf;
-        Mf = null;
-        for (var b = 0; b < a.length; ++b) a[b]()
-    }
-
-    function Pf(a, b, c) {
-        return "string" == typeof b && (b = {
-            type: b,
-            preventDefault: function () {
-                this.defaultPrevented = !0
-            }
-        }), Lf(a, c || b.type, a, b), Ff(b) || b.codemirrorIgnore
-    }
-
-    function Qf(a) {
-        var b = a._handlers && a._handlers.cursorActivity;
-        if (b)
-            for (var c = a.curOp.cursorActivityHandlers || (a.curOp.cursorActivityHandlers = []), d = 0; d < b.length; ++d) - 1 == dg(c, b[d]) && c.push(b[d])
-    }
-
-    function Rf(a, b) {
-        var c = a._handlers && a._handlers[b];
-        return c && c.length > 0
-    }
-
-    function Sf(a) {
-        a.prototype.on = function (a, b) {
-            Jf(this, a, b)
-        }, a.prototype.off = function (a, b) {
-            Kf(this, a, b)
-        }
-    }
-
-    function Yf() {
-        this.id = null
-    }
-
-    function ag(a) {
-        for (; _f.length <= a;) _f.push(bg(_f) + " ");
-        return _f[a]
-    }
-
-    function bg(a) {
-        return a[a.length - 1]
-    }
-
-    function dg(a, b) {
-        for (var c = 0; c < a.length; ++c)
-            if (a[c] == b) return c;
-        return -1
-    }
-
-    function eg(a, b) {
-        for (var c = [], d = 0; d < a.length; d++) c[d] = b(a[d], d);
-        return c
-    }
-
-    function fg() {}
-
-    function gg(a, b) {
-        var c;
-        return Object.create ? c = Object.create(a) : (fg.prototype = a, c = new fg), b && hg(b, c), c
-    }
-
-    function hg(a, b, c) {
-        b || (b = {});
-        for (var d in a) !a.hasOwnProperty(d) || c === !1 && b.hasOwnProperty(d) || (b[d] = a[d]);
-        return b
-    }
-
-    function ig(a) {
-        var b = Array.prototype.slice.call(arguments, 1);
-        return function () {
-            return a.apply(null, b)
-        }
-    }
-
-    function lg(a, b) {
-        return b ? b.source.indexOf("\\w") > -1 && kg(a) ? !0 : b.test(a) : kg(a)
-    }
-
-    function mg(a) {
-        for (var b in a)
-            if (a.hasOwnProperty(b) && a[b]) return !1;
-        return !0
-    }
-
-    function og(a) {
-        return a.charCodeAt(0) >= 768 && ng.test(a)
-    }
-
-    function pg(a, b, c, d) {
-        var e = document.createElement(a);
-        if (c && (e.className = c), d && (e.style.cssText = d), "string" == typeof b) e.appendChild(document.createTextNode(b));
-        else if (b)
-            for (var f = 0; f < b.length; ++f) e.appendChild(b[f]);
-        return e
-    }
-
-    function rg(a) {
-        for (var b = a.childNodes.length; b > 0; --b) a.removeChild(a.firstChild);
-        return a
-    }
-
-    function sg(a, b) {
-        return rg(a)
-            .appendChild(b)
-    }
-
-    function ug() {
-        for (var a = document.activeElement; a && a.root && a.root.activeElement;) a = a.root.activeElement;
-        return a
-    }
-
-    function vg(a) {
-        return new RegExp("(^|\\s)" + a + "(?:$|\\s)\\s*")
-    }
-
-    function yg(a, b) {
-        for (var c = a.split(" "), d = 0; d < c.length; d++) c[d] && !vg(c[d])
-            .test(b) && (b += " " + c[d]);
-        return b
-    }
-
-    function zg(a) {
-        if (document.body.getElementsByClassName)
-            for (var b = document.body.getElementsByClassName("CodeMirror"), c = 0; c < b.length; c++) {
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-                d && a(d)
-            }
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-    function Bg() {
-        Ag || (Cg(), Ag = !0)
-    }
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-    function Cg() {
-        var a;
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-            }, 100))
-        }), Jf(window, "blur", function () {
-            zg($c)
-        })
-    }
-
-    function Fg(a) {
-        if (null == Eg) {
-            var b = pg("span", "\u200b");
-            sg(a, pg("span", [b, document.createTextNode("x")])), 0 != a.firstChild.offsetHeight && (Eg = b.offsetWidth <= 1 && b.offsetHeight > 2 && !(d && 8 > e))
-        }
-        var c = Eg ? pg("span", "\u200b") : pg("span", "\xa0", null, "display: inline-block; width: 1px; margin-right: -1px");
-        return c.setAttribute("cm-text", ""), c
-    }
-
-    function Hg(a) {
-        if (oldff) return false;
-        if (null != Gg) return Gg;
-        var b = sg(a, document.createTextNode("A\u062eA")),
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-            .getBoundingClientRect();
-        if (!c || c.left == c.right) return !1;
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-        return Gg = d.right - c.right < 3
-    }
-
-    function Mg(a) {
-        if (null != Lg) return Lg;
-        var b = sg(a, pg("span", "x")),
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-            .getBoundingClientRect();
-        return Lg = Math.abs(c.left - d.left) > 1
-    }
-
-    function Og(a, b, c, d) {
-        if (!a) return d(b, c, "ltr");
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-            var g = a[f];
-            (g.from < c && g.to > b || b == c && g.to == b) && (d(Math.max(g.from, b), Math.min(g.to, c), 1 == g.level ? "rtl" : "ltr"), e = !0)
-        }
-        e || d(b, c, "ltr")
-    }
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-    }
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-    function Qg(a) {
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-    }
-
-    function Rg(a) {
-        var b = nf(a);
-        return b ? Pg(b[0]) : 0
-    }
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-    function Sg(a) {
-        var b = nf(a);
-        return b ? Qg(bg(b)) : a.text.length
-    }
-
-    function Tg(a, b) {
-        var c = ff(a.doc, b),
-            d = se(c);
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-        var e = nf(d),
-            f = e ? e[0].level % 2 ? Sg(d) : Rg(d) : 0;
-        return oa(b, f)
-    }
-
-    function Ug(a, b) {
-        for (var c, d = ff(a.doc, b); c = qe(d);) d = c.find(1, !0)
-            .line, b = null;
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-            f = e ? e[0].level % 2 ? Rg(d) : Sg(d) : d.text.length;
-        return oa(null == b ? kf(d) : b, f)
-    }
-
-    function Vg(a, b) {
-        var c = Tg(a, b.line),
-            d = ff(a.doc, c.line),
-            e = nf(d);
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-            var f = Math.max(0, d.text.search(/\S/)),
-                g = b.line == c.line && b.ch <= f && b.ch;
-            return oa(c.line, g ? 0 : f)
-        }
-        return c
-    }
-
-    function Wg(a, b, c) {
-        var d = a[0].level;
-        return b == d ? !0 : c == d ? !1 : c > b
-    }
-
-    function Yg(a, b) {
-        Xg = null;
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-            var e = a[c];
-            if (e.from < b && e.to > b) return c;
-            if (e.from == b || e.to == b) {
-                if (null != d) return Wg(a, e.level, a[d].level) ? (e.from != e.to && (Xg = d), c) : (e.from != e.to && (Xg = c), d);
-                d = c
-            }
-        }
-        return d
-    }
-
-    function Zg(a, b, c, d) {
-        if (!d) return b + c;
-        do b += c; while (b > 0 && og(a.text.charAt(b)));
-        return b
-    }
-
-    function $g(a, b, c, d) {
-        var e = nf(a);
-        if (!e) return _g(a, b, c, d);
-        for (var f = Yg(e, b), g = e[f], h = Zg(a, b, g.level % 2 ? -c : c, d);;) {
-            if (h > g.from && h < g.to) return h;
-            if (h == g.from || h == g.to) return Yg(e, h) == f ? h : (g = e[f += c], c > 0 == g.level % 2 ? g.to : g.from);
-            if (g = e[f += c], !g) return null;
-            h = c > 0 == g.level % 2 ? Zg(a, g.to, -1, d) : Zg(a, g.from, 1, d)
-        }
-    }
-
-    function _g(a, b, c, d) {
-        var e = b + c;
-        if (d)
-            for (; e > 0 && og(a.text.charAt(e));) e += c;
-        return 0 > e || e > a.text.length ? null : e
-    }
-    var a = /gecko\/\d/i.test(navigator.userAgent),
-        b = /MSIE \d/.test(navigator.userAgent),
-        c = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent),
-        d = b || c,
-        e = d && (b ? document.documentMode || 6 : c[1]),
-        f = /WebKit\//.test(navigator.userAgent),
-        g = f && /Qt\/\d+\.\d+/.test(navigator.userAgent),
-        h = /Chrome\//.test(navigator.userAgent),
-        i = /Opera\//.test(navigator.userAgent),
-        j = /Apple Computer/.test(navigator.vendor),
-        k = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent),
-        l = /PhantomJS/.test(navigator.userAgent),
-        m = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent),
-        n = m || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent),
-        o = m || /Mac/.test(navigator.platform),
-        p = /win/i.test(navigator.platform),
-        q = i && navigator.userAgent.match(/Version\/(\d*\.\d*)/),
-        oldff = /Firefox\/([1-3])\./i.test(navigator.userAgent);
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-    var r = o && (g || i && (null == q || 12.11 > q)),
-        s = a || d && e >= 9,
-        t = !1,
-        u = !1;
-    K.prototype = hg({
-        update: function (a) {
-            var b = a.scrollWidth > a.clientWidth + 1,
-                c = a.scrollHeight > a.clientHeight + 1,
-                d = a.nativeBarWidth;
-            if (c) {
-                this.vert.style.display = "block", this.vert.style.bottom = b ? d + "px" : "0";
-                var e = a.viewHeight - (b ? d : 0);
-                this.vert.firstChild.style.height = Math.max(0, a.scrollHeight - a.clientHeight + e) + "px"
-            } else this.vert.style.display = "", this.vert.firstChild.style.height = "0";
-            if (b) {
-                this.horiz.style.display = "block", this.horiz.style.right = c ? d + "px" : "0", this.horiz.style.left = a.barLeft + "px";
-                var f = a.viewWidth - a.barLeft - (c ? d : 0);
-                this.horiz.firstChild.style.width = a.scrollWidth - a.clientWidth + f + "px"
-            } else this.horiz.style.display = "", this.horiz.firstChild.style.width = "0";
-            return !this.checkedOverlay && a.clientHeight > 0 && (0 == d && this.overlayHack(), this.checkedOverlay = !0), {
-                right: c ? d : 0,
-                bottom: b ? d : 0
-            }
-        },
-        setScrollLeft: function (a) {
-            this.horiz.scrollLeft != a && (this.horiz.scrollLeft = a)
-        },
-        setScrollTop: function (a) {
-            this.vert.scrollTop != a && (this.vert.scrollTop = a)
-        },
-        overlayHack: function () {
-            var a = o && !k ? "12px" : "18px";
-            this.horiz.style.minHeight = this.vert.style.minWidth = a;
-            var b = this,
-                c = function (a) {
-                    Hf(a) != b.vert && Hf(a) != b.horiz && dc(b.cm, uc)(a)
-                };
-            Jf(this.vert, "mousedown", c), Jf(this.horiz, "mousedown", c)
-        },
-        clear: function () {
-            var a = this.horiz.parentNode;
-            a.removeChild(this.horiz), a.removeChild(this.vert)
-        }
-    }, K.prototype), L.prototype = hg({
-        update: function () {
-            return {
-                bottom: 0,
-                right: 0
-            }
-        },
-        setScrollLeft: function () {},
-        setScrollTop: function () {},
-        clear: function () {}
-    }, L.prototype), v.scrollbarModel = {
-        "native": K,
-        "null": L
-    }, U.prototype.signal = function (a, b) {
-        Rf(a, b) && this.events.push(arguments)
-    }, U.prototype.finish = function () {
-        for (var a = 0; a < this.events.length; a++) Lf.apply(null, this.events[a])
-    };
-    var oa = v.Pos = function (a, b) {
-            return this instanceof oa ? (this.line = a, void(this.ch = b)) : new oa(a, b)
-        },
-        pa = v.cmpPos = function (a, b) {
-            return a.line - b.line || a.ch - b.ch
-        },
-        va = null;
-    Ba.prototype = hg({
-        init: function (a) {
-            function h(a) {
-                if (c.somethingSelected()) va = c.getSelections(), b.inaccurateSelection && (b.prevInput = "", b.inaccurateSelection = !1, g.value = va.join("\n"), cg(g));
-                else {
-                    if (!c.options.lineWiseCopyCut) return;
-                    var d = za(c);
-                    va = d.text, "cut" == a.type ? c.setSelections(d.ranges, null, Vf) : (b.prevInput = "", g.value = d.text.join("\n"), cg(g))
-                }
-                "cut" == a.type && (c.state.cutIncoming = !0)
-            }
-            var b = this,
-                c = this.cm,
-                f = this.wrapper = Ca(),
-                g = this.textarea = f.firstChild;
-            a.wrapper.insertBefore(f, a.wrapper.firstChild), m && (g.style.width = "0px"), Jf(g, "input", function () {
-                d && e >= 9 && b.hasSelection && (b.hasSelection = null), b.poll()
-            }), Jf(g, "paste", function (a) {
-                return xa(a, c) ? !0 : (c.state.pasteIncoming = !0, void b.fastPoll())
-            }), Jf(g, "cut", h), Jf(g, "copy", h), Jf(a.scroller, "paste", function (d) {
-                sc(a, d) || (c.state.pasteIncoming = !0, b.focus())
-            }), Jf(a.lineSpace, "selectstart", function (b) {
-                sc(a, b) || Df(b)
-            }), Jf(g, "compositionstart", function () {
-                var a = c.getCursor("from");
-                b.composing = {
-                    start: a,
-                    range: c.markText(a, c.getCursor("to"), {
-                        className: "CodeMirror-composing"
-                    })
-                }
-            }), Jf(g, "compositionend", function () {
-                b.composing && (b.poll(), b.composing.range.clear(), b.composing = null)
-            })
-        },
-        prepareSelection: function () {
-            var a = this.cm,
-                b = a.display,
-                c = a.doc,
-                d = eb(a);
-            if (a.options.moveInputWithCursor) {
-                var e = Lb(a, c.sel.primary()
-                        .head, "div"),
-                    f = b.wrapper.getBoundingClientRect(),
-                    g = b.lineDiv.getBoundingClientRect();
-                d.teTop = Math.max(0, Math.min(b.wrapper.clientHeight - 10, e.top + g.top - f.top)), d.teLeft = Math.max(0, Math.min(b.wrapper.clientWidth - 10, e.left + g.left - f.left))
-            }
-            return d
-        },
-        showSelection: function (a) {
-            var b = this.cm,
-                c = b.display;
-            sg(c.cursorDiv, a.cursors), sg(c.selectionDiv, a.selection), null != a.teTop && (this.wrapper.style.top = a.teTop + "px", this.wrapper.style.left = a.teLeft + "px")
-        },
-        reset: function (a) {
-            if (!this.contextMenuPending) {
-                var b, c, f = this.cm,
-                    g = f.doc;
-                if (f.somethingSelected()) {
-                    this.prevInput = "";
-                    var h = g.sel.primary();
-                    b = Kg && (h.to()
-                        .line - h.from()
-                        .line > 100 || (c = f.getSelection())
-                        .length > 1e3);
-                    var i = b ? "-" : c || f.getSelection();
-                    this.textarea.value = i, f.state.focused && cg(this.textarea), d && e >= 9 && (this.hasSelection = i)
-                } else a || (this.prevInput = this.textarea.value = "", d && e >= 9 && (this.hasSelection = null));
-                this.inaccurateSelection = b
-            }
-        },
-        getField: function () {
-            return this.textarea
-        },
-        supportsTouch: function () {
-            return !1
-        },
-        focus: function () {
-            if ("nocursor" != this.cm.options.readOnly && (!n || ug() != this.textarea)) try {
-                this.textarea.focus()
-            } catch (a) {}
-        },
-        blur: function () {
-            this.textarea.blur()
-        },
-        resetPosition: function () {
-            this.wrapper.style.top = this.wrapper.style.left = 0
-        },
-        receivedFocus: function () {
-            this.slowPoll()
-        },
-        slowPoll: function () {
-            var a = this;
-            a.pollingFast || a.polling.set(this.cm.options.pollInterval, function () {
-                a.poll(), a.cm.state.focused && a.slowPoll()
-            })
-        },
-        fastPoll: function () {
-            function c() {
-                var d = b.poll();
-                d || a ? (b.pollingFast = !1, b.slowPoll()) : (a = !0, b.polling.set(60, c))
-            }
-            var a = !1,
-                b = this;
-            b.pollingFast = !0, b.polling.set(20, c)
-        },
-        poll: function () {
-            var a = this.cm,
-                b = this.textarea,
-                c = this.prevInput;
-            if (this.contextMenuPending || !a.state.focused || Jg(b) && !c && !this.composing || ua(a) || a.options.disableInput || a.state.keySeq) return !1;
-            var f = b.value;
-            if (f == c && !a.somethingSelected()) return !1;
-            if (d && e >= 9 && this.hasSelection === f || o && /[\uf700-\uf7ff]/.test(f)) return a.display.input.reset(), !1;
-            if (a.doc.sel == a.display.selForContextMenu) {
-                var g = f.charCodeAt(0);
-                if (8203 != g || c || (c = "\u200b"), 8666 == g) return this.reset(), this.cm.execCommand("undo")
-            }
-            for (var h = 0, i = Math.min(c.length, f.length); i > h && c.charCodeAt(h) == f.charCodeAt(h);) ++h;
-            var j = this;
-            return cc(a, function () {
-                wa(a, f.slice(h), c.length - h, null, j.composing ? "*compose" : null), f.length > 1e3 || f.indexOf("\n") > -1 ? b.value = j.prevInput = "" : j.prevInput = f, j.composing && (j.composing.range.clear(), j.composing.range = a.markText(j.composing.start, a.getCursor("to"), {
-                    className: "CodeMirror-composing"
-                }))
-            }), !0
-        },
-        ensurePolled: function () {
-            this.pollingFast && this.poll() && (this.pollingFast = !1)
-        },
-        onKeyPress: function () {
-            d && e >= 9 && (this.hasSelection = null), this.fastPoll()
-        },
-        onContextMenu: function (a) {
-            function o() {
-                if (null != h.selectionStart) {
-                    var a = c.somethingSelected(),
-                        d = "\u200b" + (a ? h.value : "");
-                    h.value = "\u21da", h.value = d, b.prevInput = a ? "" : "\u200b", h.selectionStart = 1, h.selectionEnd = d.length, g.selForContextMenu = c.doc.sel
-                }
-            }
-
-            function p() {
-                if (b.contextMenuPending = !1, b.wrapper.style.position = "relative", h.style.cssText = m, d && 9 > e && g.scrollbars.setScrollTop(g.scroller.scrollTop = k), null != h.selectionStart) {
-                    (!d || d && 9 > e) && o();
-                    var a = 0,
-                        f = function () {
-                            g.selForContextMenu == c.doc.sel && 0 == h.selectionStart && h.selectionEnd > 0 && "\u200b" == b.prevInput ? dc(c, Ld.selectAll)(c) : a++ < 10 ? g.detectingSelectAll = setTimeout(f, 500) : g.input.reset()
-                        };
-                    g.detectingSelectAll = setTimeout(f, 200)
-                }
-            }
-            var b = this,
-                c = b.cm,
-                g = c.display,
-                h = b.textarea,
-                j = tc(c, a),
-                k = g.scroller.scrollTop;
-            if (j && !i) {
-                var l = c.options.resetSelectionOnContextMenu;
-                l && -1 == c.doc.sel.contains(j) && dc(c, Za)(c.doc, Ma(j), Vf);
-                var m = h.style.cssText;
-                if (b.wrapper.style.position = "absolute", h.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (a.clientY - 5) + "px; left: " + (a.clientX - 5) + "px; z-index: 1000; background: " + (d ? "rgba(255, 255, 255, .05)" : "transparent") + "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);", f) var n = window.scrollY;
-                if (g.input.focus(), f && window.scrollTo(null, n), g.input.reset(), c.somethingSelected() || (h.value = b.prevInput = " "), b.contextMenuPending = !0, g.selForContextMenu = c.doc.sel, clearTimeout(g.detectingSelectAll), d && e >= 9 && o(), s) {
-                    Gf(a);
-                    var q = function () {
-                        Kf(window, "mouseup", q), setTimeout(p, 20)
-                    };
-                    Jf(window, "mouseup", q)
-                } else setTimeout(p, 50)
-            }
-        },
-        setUneditable: fg,
-        needsContentAttribute: !1
-    }, Ba.prototype), Da.prototype = hg({
-        init: function (a) {
-            function e(a) {
-                if (c.somethingSelected()) va = c.getSelections(), "cut" == a.type && c.replaceSelection("", null, "cut");
-                else {
-                    if (!c.options.lineWiseCopyCut) return;
-                    var b = za(c);
-                    va = b.text, "cut" == a.type && c.operation(function () {
-                        c.setSelections(b.ranges, 0, Vf), c.replaceSelection("", null, "cut")
-                    })
-                }
-                if (a.clipboardData && !m) a.preventDefault(), a.clipboardData.clearData(), a.clipboardData.setData("text/plain", va.join("\n"));
-                else {
-                    var d = Ca(),
-                        e = d.firstChild;
-                    c.display.lineSpace.insertBefore(d, c.display.lineSpace.firstChild), e.value = va.join("\n");
-                    var f = document.activeElement;
-                    cg(e), setTimeout(function () {
-                        c.display.lineSpace.removeChild(d), f.focus()
-                    }, 50)
-                }
-            }
-            var b = this,
-                c = b.cm,
-                d = b.div = a.lineDiv;
-            d.contentEditable = "true", Aa(d), Jf(d, "paste", function (a) {
-                xa(a, c)
-            }), Jf(d, "compositionstart", function (a) {
-                var d = a.data;
-                if (b.composing = {
-                        sel: c.doc.sel,
-                        data: d,
-                        startData: d
-                    }, d) {
-                    var e = c.doc.sel.primary(),
-                        f = c.getLine(e.head.line),
-                        g = f.indexOf(d, Math.max(0, e.head.ch - d.length));
-                    g > -1 && g <= e.head.ch && (b.composing.sel = Ma(oa(e.head.line, g), oa(e.head.line, g + d.length)))
-                }
-            }), Jf(d, "compositionupdate", function (a) {
-                b.composing.data = a.data
-            }), Jf(d, "compositionend", function (a) {
-                var c = b.composing;
-                c && (a.data == c.startData || /\u200b/.test(a.data) || (c.data = a.data), setTimeout(function () {
-                    c.handled || b.applyComposition(c), b.composing == c && (b.composing = null)
-                }, 50))
-            }), Jf(d, "touchstart", function () {
-                b.forceCompositionEnd()
-            }), Jf(d, "input", function () {
-                b.composing || b.pollContent() || cc(b.cm, function () {
-                    ic(c)
-                })
-            }), Jf(d, "copy", e), Jf(d, "cut", e)
-        },
-        prepareSelection: function () {
-            var a = eb(this.cm, !1);
-            return a.focus = this.cm.state.focused, a
-        },
-        showSelection: function (a) {
-            a && this.cm.display.view.length && (a.focus && this.showPrimarySelection(), this.showMultipleSelections(a))
-        },
-        showPrimarySelection: function () {
-            var b = window.getSelection(),
-                c = this.cm.doc.sel.primary(),
-                d = Ga(this.cm, b.anchorNode, b.anchorOffset),
-                e = Ga(this.cm, b.focusNode, b.focusOffset);
-            if (!d || d.bad || !e || e.bad || 0 != pa(sa(d, e), c.from()) || 0 != pa(ra(d, e), c.to())) {
-                var f = Ea(this.cm, c.from()),
-                    g = Ea(this.cm, c.to());
-                if (f || g) {
-                    var h = this.cm.display.view,
-                        i = b.rangeCount && b.getRangeAt(0);
-                    if (f) {
-                        if (!g) {
-                            var j = h[h.length - 1].measure,
-                                k = j.maps ? j.maps[j.maps.length - 1] : j.map;
-                            g = {
-                                node: k[k.length - 1],
-                                offset: k[k.length - 2] - k[k.length - 3]
-                            }
-                        }
-                    } else f = {
-                        node: h[0].measure.map[2],
-                        offset: 0
-                    };
-                    try {
-                        var l = qg(f.node, f.offset, g.offset, g.node)
-                    } catch (m) {}
-                    l && (b.removeAllRanges(), b.addRange(l), i && null == b.anchorNode ? b.addRange(i) : a && this.startGracePeriod()), this.rememberSelection()
-                }
-            }
-        },
-        startGracePeriod: function () {
-            var a = this;
-            clearTimeout(this.gracePeriod), this.gracePeriod = setTimeout(function () {
-                a.gracePeriod = !1, a.selectionChanged() && a.cm.operation(function () {
-                    a.cm.curOp.selectionChanged = !0
-                })
-            }, 20)
-        },
-        showMultipleSelections: function (a) {
-            sg(this.cm.display.cursorDiv, a.cursors), sg(this.cm.display.selectionDiv, a.selection)
-        },
-        rememberSelection: function () {
-            var a = window.getSelection();
-            this.lastAnchorNode = a.anchorNode, this.lastAnchorOffset = a.anchorOffset, this.lastFocusNode = a.focusNode, this.lastFocusOffset = a.focusOffset
-        },
-        selectionInEditor: function () {
-            var a = window.getSelection();
-            if (!a.rangeCount) return !1;
-            var b = a.getRangeAt(0)
-                .commonAncestorContainer;
-            return tg(this.div, b)
-        },
-        focus: function () {
-            "nocursor" != this.cm.options.readOnly && this.div.focus()
-        },
-        blur: function () {
-            this.div.blur()
-        },
-        getField: function () {
-            return this.div
-        },
-        supportsTouch: function () {
-            return !0
-        },
-        receivedFocus: function () {
-            function b() {
-                a.cm.state.focused && (a.pollSelection(), a.polling.set(a.cm.options.pollInterval, b))
-            }
-            var a = this;
-            this.selectionInEditor() ? this.pollSelection() : cc(this.cm, function () {
-                a.cm.curOp.selectionChanged = !0
-            }), this.polling.set(this.cm.options.pollInterval, b)
-        },
-        selectionChanged: function () {
-            var a = window.getSelection();
-            return a.anchorNode != this.lastAnchorNode || a.anchorOffset != this.lastAnchorOffset || a.focusNode != this.lastFocusNode || a.focusOffset != this.lastFocusOffset
-        },
-        pollSelection: function () {
-            if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
-                var a = window.getSelection(),
-                    b = this.cm;
-                this.rememberSelection();
-                var c = Ga(b, a.anchorNode, a.anchorOffset),
-                    d = Ga(b, a.focusNode, a.focusOffset);
-                c && d && cc(b, function () {
-                    Za(b.doc, Ma(c, d), Vf), (c.bad || d.bad) && (b.curOp.selectionChanged = !0)
-                })
-            }
-        },
-        pollContent: function () {
-            var a = this.cm,
-                b = a.display,
-                c = a.doc.sel.primary(),
-                d = c.from(),
-                e = c.to();
-            if (d.line < b.viewFrom || e.line > b.viewTo - 1) return !1;
-            var f;
-            if (d.line == b.viewFrom || 0 == (f = lc(a, d.line))) var g = kf(b.view[0].line),
-                h = b.view[0].node;
-            else var g = kf(b.view[f].line),
-                h = b.view[f - 1].node.nextSibling;
-            var i = lc(a, e.line);
-            if (i == b.view.length - 1) var j = b.viewTo - 1,
-                k = b.lineDiv.lastChild;
-            else var j = kf(b.view[i + 1].line) - 1,
-                k = b.view[i + 1].node.previousSibling;
-            for (var l = a.doc.splitLines(Ia(a, h, k, g, j)), m = gf(a.doc, oa(g, 0), oa(j, ff(a.doc, j)
-                    .text.length)); l.length > 1 && m.length > 1;)
-                if (bg(l) == bg(m)) l.pop(), m.pop(), j--;
-                else {
-                    if (l[0] != m[0]) break;
-                    l.shift(), m.shift(), g++
-                }
-            for (var n = 0, o = 0, p = l[0], q = m[0], r = Math.min(p.length, q.length); r > n && p.charCodeAt(n) == q.charCodeAt(n);) ++n;
-            for (var s = bg(l), t = bg(m), u = Math.min(s.length - (1 == l.length ? n : 0), t.length - (1 == m.length ? n : 0)); u > o && s.charCodeAt(s.length - o - 1) == t.charCodeAt(t.length - o - 1);) ++o;
-            l[l.length - 1] = s.slice(0, s.length - o), l[0] = l[0].slice(n);
-            var v = oa(g, n),
-                w = oa(j, m.length ? bg(m)
-                    .length - o : 0);
-            return l.length > 1 || l[0] || pa(v, w) ? (nd(a.doc, l, v, w, "+input"), !0) : void 0
-        },
-        ensurePolled: function () {
-            this.forceCompositionEnd()
-        },
-        reset: function () {
-            this.forceCompositionEnd()
-        },
-        forceCompositionEnd: function () {
-            this.composing && !this.composing.handled && (this.applyComposition(this.composing), this.composing.handled = !0, this.div.blur(), this.div.focus())
-        },
-        applyComposition: function (a) {
-            a.data && a.data != a.startData && dc(this.cm, wa)(this.cm, a.data, 0, a.sel)
-        },
-        setUneditable: function (a) {
-            a.setAttribute("contenteditable", "false")
-        },
-        onKeyPress: function (a) {
-            a.preventDefault(), dc(this.cm, wa)(this.cm, String.fromCharCode(null == a.charCode ? a.keyCode : a.charCode), 0)
-        },
-        onContextMenu: fg,
-        resetPosition: fg,
-        needsContentAttribute: !0
-    }, Da.prototype), v.inputStyles = {
-        textarea: Ba,
-        contenteditable: Da
-    }, Ja.prototype = {
-        primary: function () {
-            return this.ranges[this.primIndex]
-        },
-        equals: function (a) {
-            if (a == this) return !0;
-            if (a.primIndex != this.primIndex || a.ranges.length != this.ranges.length) return !1;
-            for (var b = 0; b < this.ranges.length; b++) {
-                var c = this.ranges[b],
-                    d = a.ranges[b];
-                if (0 != pa(c.anchor, d.anchor) || 0 != pa(c.head, d.head)) return !1
-            }
-            return !0
-        },
-        deepCopy: function () {
-            for (var a = [], b = 0; b < this.ranges.length; b++) a[b] = new Ka(qa(this.ranges[b].anchor), qa(this.ranges[b].head));
-            return new Ja(a, this.primIndex)
-        },
-        somethingSelected: function () {
-            for (var a = 0; a < this.ranges.length; a++)
-                if (!this.ranges[a].empty()) return !0;
-            return !1
-        },
-        contains: function (a, b) {
-            b || (b = a);
-            for (var c = 0; c < this.ranges.length; c++) {
-                var d = this.ranges[c];
-                if (pa(b, d.from()) >= 0 && pa(a, d.to()) <= 0) return c
-            }
-            return -1
-        }
-    }, Ka.prototype = {
-        from: function () {
-            return sa(this.anchor, this.head)
-        },
-        to: function () {
-            return ra(this.anchor, this.head)
-        },
-        empty: function () {
-            return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch
-        }
-    };
-    var Qb, vc, wc, zb = {
-            left: 0,
-            right: 0,
-            top: 0,
-            bottom: 0
-        },
-        Tb = null,
-        Ub = 0,
-        Cc = 0,
-        Jc = 0,
-        Kc = null;
-    d ? Kc = -.53 : a ? Kc = 15 : h ? Kc = -.7 : j && (Kc = -1 / 3);
-    var Lc = function (a) {
-        var b = a.wheelDeltaX,
-            c = a.wheelDeltaY;
-        return null == b && a.detail && a.axis == a.HORIZONTAL_AXIS && (b = a.detail), null == c && a.detail && a.axis == a.VERTICAL_AXIS ? c = a.detail : null == c && (c = a.wheelDelta), {
-            x: b,
-            y: c
-        }
-    };
-    v.wheelEventPixels = function (a) {
-        var b = Lc(a);
-        return b.x *= Kc, b.y *= Kc, b
-    };
-    var Pc = new Yf,
-        Tc = null,
-        bd = v.changeEnd = function (a) {
-            return a.text ? oa(a.from.line + a.text.length - 1, bg(a.text)
-                .length + (1 == a.text.length ? a.from.ch : 0)) : a.to
-        };
-    v.prototype = {
-        constructor: v,
-        focus: function () {
-            window.focus(), this.display.input.focus()
-        },
-        setOption: function (a, b) {
-            var c = this.options,
-                d = c[a];
-            (c[a] != b || "mode" == a) && (c[a] = b, Bd.hasOwnProperty(a) && dc(this, Bd[a])(this, b, d))
-        },
-        getOption: function (a) {
-            return this.options[a]
-        },
-        getDoc: function () {
-            return this.doc
-        },
-        addKeyMap: function (a, b) {
-            this.state.keyMaps[b ? "push" : "unshift"](Rd(a))
-        },
-        removeKeyMap: function (a) {
-            for (var b = this.state.keyMaps, c = 0; c < b.length; ++c)
-                if (b[c] == a || b[c].name == a) return b.splice(c, 1), !0
-        },
-        addOverlay: ec(function (a, b) {
-            var c = a.token ? a : v.getMode(this.options, a);
-            if (c.startState) throw new Error("Overlays may not be stateful.");
-            this.state.overlays.push({
-                mode: c,
-                modeSpec: a,
-                opaque: b && b.opaque
-            }), this.state.modeGen++, ic(this)
-        }),
-        removeOverlay: ec(function (a) {
-            for (var b = this.state.overlays, c = 0; c < b.length; ++c) {
-                var d = b[c].modeSpec;
-                if (d == a || "string" == typeof a && d.name == a) return b.splice(c, 1), this.state.modeGen++, void ic(this)
-            }
-        }),
-        indentLine: ec(function (a, b, c) {
-            "string" != typeof b && "number" != typeof b && (b = null == b ? this.options.smartIndent ? "smart" : "prev" : b ? "add" : "subtract"), Qa(this.doc, a) && vd(this, a, b, c)
-        }),
-        indentSelection: ec(function (a) {
-            for (var b = this.doc.sel.ranges, c = -1, d = 0; d < b.length; d++) {
-                var e = b[d];
-                if (e.empty()) e.head.line > c && (vd(this, e.head.line, a, !0), c = e.head.line, d == this.doc.sel.primIndex && td(this));
-                else {
-                    var f = e.from(),
-                        g = e.to(),
-                        h = Math.max(c, f.line);
-                    c = Math.min(this.lastLine(), g.line - (g.ch ? 0 : 1)) + 1;
-                    for (var i = h; c > i; ++i) vd(this, i, a);
-                    var j = this.doc.sel.ranges;
-                    0 == f.ch && b.length == j.length && j[d].from()
-                        .ch > 0 && Va(this.doc, d, new Ka(f, j[d].to()), Vf)
-                }
-            }
-        }),
-        getTokenAt: function (a, b) {
-            return Ie(this, a, b)
-        },
-        getLineTokens: function (a, b) {
-            return Ie(this, oa(a), b, !0)
-        },
-        getTokenTypeAt: function (a) {
-            a = Oa(this.doc, a);
-            var f, b = Le(this, ff(this.doc, a.line)),
-                c = 0,
-                d = (b.length - 1) / 2,
-                e = a.ch;
-            if (0 == e) f = b[2];
-            else
-                for (;;) {
-                    var g = c + d >> 1;
-                    if ((g ? b[2 * g - 1] : 0) >= e) d = g;
-                    else {
-                        if (!(b[2 * g + 1] < e)) {
-                            f = b[2 * g + 2];
-                            break
-                        }
-                        c = g + 1
-                    }
-                }
-            var h = f ? f.indexOf("cm-overlay ") : -1;
-            return 0 > h ? f : 0 == h ? null : f.slice(0, h - 1)
-        },
-        getModeAt: function (a) {
-            var b = this.doc.mode;
-            return b.innerMode ? v.innerMode(b, this.getTokenAt(a)
-                    .state)
-                .mode : b
-        },
-        getHelper: function (a, b) {
-            return this.getHelpers(a, b)[0]
-        },
-        getHelpers: function (a, b) {
-            var c = [];
-            if (!Id.hasOwnProperty(b)) return c;
-            var d = Id[b],
-                e = this.getModeAt(a);
-            if ("string" == typeof e[b]) d[e[b]] && c.push(d[e[b]]);
-            else if (e[b])
-                for (var f = 0; f < e[b].length; f++) {
-                    var g = d[e[b][f]];
-                    g && c.push(g)
-                } else e.helperType && d[e.helperType] ? c.push(d[e.helperType]) : d[e.name] && c.push(d[e.name]);
-            for (var f = 0; f < d._global.length; f++) {
-                var h = d._global[f];
-                h.pred(e, this) && -1 == dg(c, h.val) && c.push(h.val)
-            }
-            return c
-        },
-        getStateAfter: function (a, b) {
-            var c = this.doc;
-            return a = Na(c, null == a ? c.first + c.size - 1 : a), lb(this, a + 1, b)
-        },
-        cursorCoords: function (a, b) {
-            var c, d = this.doc.sel.primary();
-            return c = null == a ? d.head : "object" == typeof a ? Oa(this.doc, a) : a ? d.from() : d.to(), Lb(this, c, b || "page")
-        },
-        charCoords: function (a, b) {
-            return Kb(this, Oa(this.doc, a), b || "page")
-        },
-        coordsChar: function (a, b) {
-            return a = Jb(this, a, b || "page"), Ob(this, a.left, a.top)
-        },
-        lineAtHeight: function (a, b) {
-            return a = Jb(this, {
-                    top: a,
-                    left: 0
-                }, b || "page")
-                .top, lf(this.doc, a + this.display.viewOffset)
-        },
-        heightAtLine: function (a, b) {
-            var d, c = !1;
-            if ("number" == typeof a) {
-                var e = this.doc.first + this.doc.size - 1;
-                a < this.doc.first ? a = this.doc.first : a > e && (a = e, c = !0), d = ff(this.doc, a)
-            } else d = a;
-            return Ib(this, d, {
-                    top: 0,
-                    left: 0
-                }, b || "page")
-                .top + (c ? this.doc.height - mf(d) : 0)
-        },
-        defaultTextHeight: function () {
-            return Rb(this.display)
-        },
-        defaultCharWidth: function () {
-            return Sb(this.display)
-        },
-        setGutterMarker: ec(function (a, b, c) {
-            return wd(this.doc, a, "gutter", function (a) {
-                var d = a.gutterMarkers || (a.gutterMarkers = {});
-                return d[b] = c, !c && mg(d) && (a.gutterMarkers = null), !0
-            })
-        }),
-        clearGutter: ec(function (a) {
-            var b = this,
-                c = b.doc,
-                d = c.first;
-            c.iter(function (c) {
-                c.gutterMarkers && c.gutterMarkers[a] && (c.gutterMarkers[a] = null, jc(b, d, "gutter"), mg(c.gutterMarkers) && (c.gutterMarkers = null)), ++d
-            })
-        }),
-        lineInfo: function (a) {
-            if ("number" == typeof a) {
-                if (!Qa(this.doc, a)) return null;
-                var b = a;
-                if (a = ff(this.doc, a), !a) return null
-            } else {
-                var b = kf(a);
-                if (null == b) return null
-            }
-            return {
-                line: b,
-                handle: a,
-                text: a.text,
-                gutterMarkers: a.gutterMarkers,
-                textClass: a.textClass,
-                bgClass: a.bgClass,
-                wrapClass: a.wrapClass,
-                widgets: a.widgets
-            }
-        },
-        getViewport: function () {
-            return {
-                from: this.display.viewFrom,
-                to: this.display.viewTo
-            }
-        },
-        addWidget: function (a, b, c, d, e) {
-            var f = this.display;
-            a = Lb(this, Oa(this.doc, a));
-            var g = a.bottom,
-                h = a.left;
-            if (b.style.position = "absolute", b.setAttribute("cm-ignore-events", "true"), this.display.input.setUneditable(b), f.sizer.appendChild(b), "over" == d) g = a.top;
-            else if ("above" == d || "near" == d) {
-                var i = Math.max(f.wrapper.clientHeight, this.doc.height),
-                    j = Math.max(f.sizer.clientWidth, f.lineSpace.clientWidth);
-                ("above" == d || a.bottom + b.offsetHeight > i) && a.top > b.offsetHeight ? g = a.top - b.offsetHeight : a.bottom + b.offsetHeight <= i && (g = a.bottom), h + b.offsetWidth > j && (h = j - b.offsetWidth)
-            }
-            b.style.top = g + "px", b.style.left = b.style.right = "", "right" == e ? (h = f.sizer.clientWidth - b.offsetWidth, b.style.right = "0px") : ("left" == e ? h = 0 : "middle" == e && (h = (f.sizer.clientWidth - b.offsetWidth) / 2), b.style.left = h + "px"), c && qd(this, h, g, h + b.offsetWidth, g + b.offsetHeight)
-        },
-        triggerOnKeyDown: ec(Uc),
-        triggerOnKeyPress: ec(Xc),
-        triggerOnKeyUp: Wc,
-        execCommand: function (a) {
-            return Ld.hasOwnProperty(a) ? Ld[a].call(null, this) : void 0
-        },
-        triggerElectric: ec(function (a) {
-            ya(this, a)
-        }),
-        findPosH: function (a, b, c, d) {
-            var e = 1;
-            0 > b && (e = -1, b = -b);
-            for (var f = 0, g = Oa(this.doc, a); b > f && (g = yd(this.doc, g, e, c, d), !g.hitSide); ++f);
-            return g
-        },
-        moveH: ec(function (a, b) {
-            var c = this;
-            c.extendSelectionsBy(function (d) {
-                return c.display.shift || c.doc.extend || d.empty() ? yd(c.doc, d.head, a, b, c.options.rtlMoveVisually) : 0 > a ? d.from() : d.to()
-            }, Xf)
-        }),
-        deleteH: ec(function (a, b) {
-            var c = this.doc.sel,
-                d = this.doc;
-            c.somethingSelected() ? d.replaceSelection("", null, "+delete") : xd(this, function (c) {
-                var e = yd(d, c.head, a, b, !1);
-                return 0 > a ? {
-                    from: e,
-                    to: c.head
-                } : {
-                    from: c.head,
-                    to: e
-                }
-            })
-        }),
-        findPosV: function (a, b, c, d) {
-            var e = 1,
-                f = d;
-            0 > b && (e = -1, b = -b);
-            for (var g = 0, h = Oa(this.doc, a); b > g; ++g) {
-                var i = Lb(this, h, "div");
-                if (null == f ? f = i.left : i.left = f, h = zd(this, i, e, c), h.hitSide) break
-            }
-            return h
-        },
-        moveV: ec(function (a, b) {
-            var c = this,
-                d = this.doc,
-                e = [],
-                f = !c.display.shift && !d.extend && d.sel.somethingSelected();
-            if (d.extendSelectionsBy(function (g) {
-                    if (f) return 0 > a ? g.from() : g.to();
-                    var h = Lb(c, g.head, "div");
-                    null != g.goalColumn && (h.left = g.goalColumn), e.push(h.left);
-                    var i = zd(c, h, a, b);
-                    return "page" == b && g == d.sel.primary() && sd(c, null, Kb(c, i, "div")
-                        .top - h.top), i
-                }, Xf), e.length)
-                for (var g = 0; g < d.sel.ranges.length; g++) d.sel.ranges[g].goalColumn = e[g]
-        }),
-        findWordAt: function (a) {
-            var b = this.doc,
-                c = ff(b, a.line)
-                .text,
-                d = a.ch,
-                e = a.ch;
-            if (c) {
-                var f = this.getHelper(a, "wordChars");
-                (a.xRel < 0 || e == c.length) && d ? --d : ++e;
-                for (var g = c.charAt(d), h = lg(g, f) ? function (a) {
-                        return lg(a, f)
-                    } : /\s/.test(g) ? function (a) {
-                        return /\s/.test(a)
-                    } : function (a) {
-                        return !/\s/.test(a) && !lg(a)
-                    }; d > 0 && h(c.charAt(d - 1));) --d;
-                for (; e < c.length && h(c.charAt(e));) ++e
-            }
-            return new Ka(oa(a.line, d), oa(a.line, e))
-        },
-        toggleOverwrite: function (a) {
-            (null == a || a != this.state.overwrite) && ((this.state.overwrite = !this.state.overwrite) ? xg(this.display.cursorDiv, "CodeMirror-overwrite") : wg(this.display.cursorDiv, "CodeMirror-overwrite"), Lf(this, "overwriteToggle", this, this.state.overwrite))
-        },
-        hasFocus: function () {
-            return this.display.input.getField() == ug()
-        },
-        scrollTo: ec(function (a, b) {
-            (null != a || null != b) && ud(this), null != a && (this.curOp.scrollLeft = a), null != b && (this.curOp.scrollTop = b)
-        }),
-        getScrollInfo: function () {
-            var a = this.display.scroller;
-            return {
-                left: a.scrollLeft,
-                top: a.scrollTop,
-                height: a.scrollHeight - pb(this) - this.display.barHeight,
-                width: a.scrollWidth - pb(this) - this.display.barWidth,
-                clientHeight: rb(this),
-                clientWidth: qb(this)
-            }
-        },
-        scrollIntoView: ec(function (a, b) {
-            if (null == a ? (a = {
-                    from: this.doc.sel.primary()
-                        .head,
-                    to: null
-                }, null == b && (b = this.options.cursorScrollMargin)) : "number" == typeof a ? a = {
-                    from: oa(a, 0),
-                    to: null
-                } : null == a.from && (a = {
-                    from: a,
-                    to: null
-                }), a.to || (a.to = a.from), a.margin = b || 0, null != a.from.line) ud(this), this.curOp.scrollToPos = a;
-            else {
-                var c = rd(this, Math.min(a.from.left, a.to.left), Math.min(a.from.top, a.to.top) - a.margin, Math.max(a.from.right, a.to.right), Math.max(a.from.bottom, a.to.bottom) + a.margin);
-                this.scrollTo(c.scrollLeft, c.scrollTop)
-            }
-        }),
-        setSize: ec(function (a, b) {
-            function d(a) {
-                return "number" == typeof a || /^\d+$/.test(String(a)) ? a + "px" : a
-            }
-            var c = this;
-            null != a && (c.display.wrapper.style.width = d(a)), null != b && (c.display.wrapper.style.height = d(b)), c.options.lineWrapping && Eb(this);
-            var e = c.display.viewFrom;
-            c.doc.iter(e, c.display.viewTo, function (a) {
-                if (a.widgets)
-                    for (var b = 0; b < a.widgets.length; b++)
-                        if (a.widgets[b].noHScroll) {
-                            jc(c, e, "widget");
-                            break
-                        }++e
-            }), c.curOp.forceUpdate = !0, Lf(c, "refresh", this)
-        }),
-        operation: function (a) {
-            return cc(this, a)
-        },
-        refresh: ec(function () {
-            var a = this.display.cachedTextHeight;
-            ic(this), this.curOp.forceUpdate = !0, Fb(this), this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop), F(this), (null == a || Math.abs(a - Rb(this.display)) > .5) && B(this), Lf(this, "refresh", this)
-        }),
-        swapDoc: ec(function (a) {
-            var b = this.doc;
-            return b.cm = null, ef(this, a), Fb(this), this.display.input.reset(), this.scrollTo(a.scrollLeft, a.scrollTop), this.curOp.forceScroll = !0, Nf(this, "swapDoc", this, b), b
-        }),
-        getInputField: function () {
-            return this.display.input.getField()
-        },
-        getWrapperElement: function () {
-            return this.display.wrapper
-        },
-        getScrollerElement: function () {
-            return this.display.scroller
-        },
-        getGutterElement: function () {
-            return this.display.gutters
-        }
-    }, Sf(v);
-    var Ad = v.defaults = {},
-        Bd = v.optionHandlers = {},
-        Dd = v.Init = {
-            toString: function () {
-                return "CodeMirror.Init"
-            }
-        };
-    Cd("value", "", function (a, b) {
-        a.setValue(b)
-    }, !0), Cd("mode", null, function (a, b) {
-        a.doc.modeOption = b, x(a)
-    }, !0), Cd("indentUnit", 2, x, !0), Cd("indentWithTabs", !1), Cd("smartIndent", !0), Cd("tabSize", 4, function (a) {
-        y(a), Fb(a), ic(a)
-    }, !0), Cd("lineSeparator", null, function (a, b) {
-        if (a.doc.lineSep = b, b) {
-            var c = [],
-                d = a.doc.first;
-            a.doc.iter(function (a) {
-                for (var e = 0;;) {
-                    var f = a.text.indexOf(b, e);
-                    if (-1 == f) break;
-                    e = f + b.length, c.push(oa(d, f))
-                }
-                d++
-            });
-            for (var e = c.length - 1; e >= 0; e--) nd(a.doc, b, c[e], oa(c[e].line, c[e].ch + b.length))
-        }
-    }), Cd("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function (a, b, c) {
-        a.state.specialChars = new RegExp(b.source + (b.test("	") ? "" : "|	"), "g"), c != v.Init && a.refresh()
-    }), Cd("specialCharPlaceholder", Re, function (a) {
-        a.refresh()
-    }, !0), Cd("electricChars", !0), Cd("inputStyle", n ? "contenteditable" : "textarea", function () {
-        throw new Error("inputStyle can not (yet) be changed in a running editor")
-    }, !0), Cd("rtlMoveVisually", !p), Cd("wholeLineUpdateBefore", !0), Cd("theme", "default", function (a) {
-        C(a), D(a)
-    }, !0), Cd("keyMap", "default", function (a, b, c) {
-        var d = Rd(b),
-            e = c != v.Init && Rd(c);
-        e && e.detach && e.detach(a, d), d.attach && d.attach(a, e || null)
-    }), Cd("extraKeys", null), Cd("lineWrapping", !1, z, !0), Cd("gutters", [], function (a) {
-        I(a.options), D(a)
-    }, !0), Cd("fixedGutter", !0, function (a, b) {
-        a.display.gutters.style.left = b ? T(a.display) + "px" : "0", a.refresh()
-    }, !0), Cd("coverGutterNextToScrollbar", !1, function (a) {
-        N(a)
-    }, !0), Cd("scrollbarStyle", "native", function (a) {
-        M(a), N(a), a.display.scrollbars.setScrollTop(a.doc.scrollTop), a.display.scrollbars.setScrollLeft(a.doc.scrollLeft)
-    }, !0), Cd("lineNumbers", !1, function (a) {
-        I(a.options), D(a)
-    }, !0), Cd("firstLineNumber", 1, D, !0), Cd("lineNumberFormatter", function (a) {
-        return a
-    }, D, !0), Cd("showCursorWhenSelecting", !1, db, !0), Cd("resetSelectionOnContextMenu", !0), Cd("lineWiseCopyCut", !0), Cd("readOnly", !1, function (a, b) {
-        "nocursor" == b ? ($c(a), a.display.input.blur(), a.display.disabled = !0) : (a.display.disabled = !1, b || a.display.input.reset())
-    }), Cd("disableInput", !1, function (a, b) {
-        b || a.display.input.reset()
-    }, !0), Cd("dragDrop", !0, qc), Cd("cursorBlinkRate", 530), Cd("cursorScrollMargin", 0), Cd("cursorHeight", 1, db, !0), Cd("singleCursorHeightPerLine", !0, db, !0), Cd("workTime", 100), Cd("workDelay", 100), Cd("flattenSpans", !0, y, !0), Cd("addModeClass", !1, y, !0), Cd("pollInterval", 100), Cd("undoDepth", 200, function (a, b) {
-        a.doc.history.undoDepth = b
-    }), Cd("historyEventDelay", 1250), Cd("viewportMargin", 10, function (a) {
-        a.refresh()
-    }, !0), Cd("maxHighlightLength", 1e4, y, !0), Cd("moveInputWithCursor", !0, function (a, b) {
-        b || a.display.input.resetPosition()
-    }), Cd("tabindex", null, function (a, b) {
-        a.display.input.getField()
-            .tabIndex = b || ""
-    }), Cd("autofocus", null);
-    var Ed = v.modes = {},
-        Fd = v.mimeModes = {};
-    v.defineMode = function (a, b) {
-        v.defaults.mode || "null" == a || (v.defaults.mode = a), arguments.length > 2 && (b.dependencies = Array.prototype.slice.call(arguments, 2)), Ed[a] = b
-    }, v.defineMIME = function (a, b) {
-        Fd[a] = b
-    }, v.resolveMode = function (a) {
-        if ("string" == typeof a && Fd.hasOwnProperty(a)) a = Fd[a];
-        else if (a && "string" == typeof a.name && Fd.hasOwnProperty(a.name)) {
-            var b = Fd[a.name];
-            "string" == typeof b && (b = {
-                name: b
-            }), a = gg(b, a), a.name = b.name
-        } else if ("string" == typeof a && /^[\w\-]+\/[\w\-]+\+xml$/.test(a)) return v.resolveMode("application/xml");
-        return "string" == typeof a ? {
-            name: a
-        } : a || {
-            name: "null"
-        }
-    }, v.getMode = function (a, b) {
-        var b = v.resolveMode(b),
-            c = Ed[b.name];
-        if (!c) return v.getMode(a, "text/plain");
-        var d = c(a, b);
-        if (Gd.hasOwnProperty(b.name)) {
-            var e = Gd[b.name];
-            for (var f in e) e.hasOwnProperty(f) && (d.hasOwnProperty(f) && (d["_" + f] = d[f]), d[f] = e[f])
-        }
-        if (d.name = b.name, b.helperType && (d.helperType = b.helperType), b.modeProps)
-            for (var f in b.modeProps) d[f] = b.modeProps[f];
-        return d
-    }, v.defineMode("null", function () {
-        return {
-            token: function (a) {
-                a.skipToEnd()
-            }
-        }
-    }), v.defineMIME("text/plain", "null");
-    var Gd = v.modeExtensions = {};
-    v.extendMode = function (a, b) {
-        var c = Gd.hasOwnProperty(a) ? Gd[a] : Gd[a] = {};
-        hg(b, c)
-    }, v.defineExtension = function (a, b) {
-        v.prototype[a] = b
-    }, v.defineDocExtension = function (a, b) {
-        af.prototype[a] = b
-    }, v.defineOption = Cd;
-    var Hd = [];
-    v.defineInitHook = function (a) {
-        Hd.push(a)
-    };
-    var Id = v.helpers = {};
-    v.registerHelper = function (a, b, c) {
-        Id.hasOwnProperty(a) || (Id[a] = v[a] = {
-            _global: []
-        }), Id[a][b] = c
-    }, v.registerGlobalHelper = function (a, b, c, d) {
-        v.registerHelper(a, b, d), Id[a]._global.push({
-            pred: c,
-            val: d
-        })
-    };
-    var Jd = v.copyState = function (a, b) {
-            if (b === !0) return b;
-            if (a.copyState) return a.copyState(b);
-            var c = {};
-            for (var d in b) {
-                var e = b[d];
-                e instanceof Array && (e = e.concat([])), c[d] = e
-            }
-            return c
-        },
-        Kd = v.startState = function (a, b, c) {
-            return a.startState ? a.startState(b, c) : !0
-        };
-    v.innerMode = function (a, b) {
-        for (; a.innerMode;) {
-            var c = a.innerMode(b);
-            if (!c || c.mode == a) break;
-            b = c.state, a = c.mode
-        }
-        return c || {
-            mode: a,
-            state: b
-        }
-    };
-    var Ld = v.commands = {
-            selectAll: function (a) {
-                a.setSelection(oa(a.firstLine(), 0), oa(a.lastLine()), Vf)
-            },
-            singleSelection: function (a) {
-                a.setSelection(a.getCursor("anchor"), a.getCursor("head"), Vf)
-            },
-            killLine: function (a) {
-                xd(a, function (b) {
-                    if (b.empty()) {
-                        var c = ff(a.doc, b.head.line)
-                            .text.length;
-                        return b.head.ch == c && b.head.line < a.lastLine() ? {
-                            from: b.head,
-                            to: oa(b.head.line + 1, 0)
-                        } : {
-                            from: b.head,
-                            to: oa(b.head.line, c)
-                        }
-                    }
-                    return {
-                        from: b.from(),
-                        to: b.to()
-                    }
-                })
-            },
-            deleteLine: function (a) {
-                xd(a, function (b) {
-                    return {
-                        from: oa(b.from()
-                            .line, 0),
-                        to: Oa(a.doc, oa(b.to()
-                            .line + 1, 0))
-                    }
-                })
-            },
-            delLineLeft: function (a) {
-                xd(a, function (a) {
-                    return {
-                        from: oa(a.from()
-                            .line, 0),
-                        to: a.from()
-                    }
-                })
-            },
-            delWrappedLineLeft: function (a) {
-                xd(a, function (b) {
-                    var c = a.charCoords(b.head, "div")
-                        .top + 5,
-                        d = a.coordsChar({
-                            left: 0,
-                            top: c
-                        }, "div");
-                    return {
-                        from: d,
-                        to: b.from()
-                    }
-                })
-            },
-            delWrappedLineRight: function (a) {
-                xd(a, function (b) {
-                    var c = a.charCoords(b.head, "div")
-                        .top + 5,
-                        d = a.coordsChar({
-                            left: a.display.lineDiv.offsetWidth + 100,
-                            top: c
-                        }, "div");
-                    return {
-                        from: b.from(),
-                        to: d
-                    }
-                })
-            },
-            undo: function (a) {
-                a.undo()
-            },
-            redo: function (a) {
-                a.redo()
-            },
-            undoSelection: function (a) {
-                a.undoSelection()
-            },
-            redoSelection: function (a) {
-                a.redoSelection()
-            },
-            goDocStart: function (a) {
-                a.extendSelection(oa(a.firstLine(), 0))
-            },
-            goDocEnd: function (a) {
-                a.extendSelection(oa(a.lastLine()))
-            },
-            goLineStart: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    return Tg(a, b.head.line)
-                }, {
-                    origin: "+move",
-                    bias: 1
-                })
-            },
-            goLineStartSmart: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    return Vg(a, b.head)
-                }, {
-                    origin: "+move",
-                    bias: 1
-                })
-            },
-            goLineEnd: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    return Ug(a, b.head.line)
-                }, {
-                    origin: "+move",
-                    bias: -1
-                })
-            },
-            goLineRight: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    var c = a.charCoords(b.head, "div")
-                        .top + 5;
-                    return a.coordsChar({
-                        left: a.display.lineDiv.offsetWidth + 100,
-                        top: c
-                    }, "div")
-                }, Xf)
-            },
-            goLineLeft: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    var c = a.charCoords(b.head, "div")
-                        .top + 5;
-                    return a.coordsChar({
-                        left: 0,
-                        top: c
-                    }, "div")
-                }, Xf)
-            },
-            goLineLeftSmart: function (a) {
-                a.extendSelectionsBy(function (b) {
-                    var c = a.charCoords(b.head, "div")
-                        .top + 5,
-                        d = a.coordsChar({
-                            left: 0,
-                            top: c
-                        }, "div");
-                    return d.ch < a.getLine(d.line)
-                        .search(/\S/) ? Vg(a, b.head) : d
-                }, Xf)
-            },
-            goLineUp: function (a) {
-                a.moveV(-1, "line")
-            },
-            goLineDown: function (a) {
-                a.moveV(1, "line")
-            },
-            goPageUp: function (a) {
-                a.moveV(-1, "page")
-            },
-            goPageDown: function (a) {
-                a.moveV(1, "page")
-            },
-            goCharLeft: function (a) {
-                a.moveH(-1, "char")
-            },
-            goCharRight: function (a) {
-                a.moveH(1, "char")
-            },
-            goColumnLeft: function (a) {
-                a.moveH(-1, "column")
-            },
-            goColumnRight: function (a) {
-                a.moveH(1, "column")
-            },
-            goWordLeft: function (a) {
-                a.moveH(-1, "word")
-            },
-            goGroupRight: function (a) {
-                a.moveH(1, "group")
-            },
-            goGroupLeft: function (a) {
-                a.moveH(-1, "group")
-            },
-            goWordRight: function (a) {
-                a.moveH(1, "word")
-            },
-            delCharBefore: function (a) {
-                a.deleteH(-1, "char")
-            },
-            delCharAfter: function (a) {
-                a.deleteH(1, "char")
-            },
-            delWordBefore: function (a) {
-                a.deleteH(-1, "word")
-            },
-            delWordAfter: function (a) {
-                a.deleteH(1, "word")
-            },
-            delGroupBefore: function (a) {
-                a.deleteH(-1, "group")
-            },
-            delGroupAfter: function (a) {
-                a.deleteH(1, "group")
-            },
-            indentAuto: function (a) {
-                a.indentSelection("smart")
-            },
-            indentMore: function (a) {
-                a.indentSelection("add")
-            },
-            indentLess: function (a) {
-                a.indentSelection("subtract")
-            },
-            insertTab: function (a) {
-                a.replaceSelection("	")
-            },
-            insertSoftTab: function (a) {
-                for (var b = [], c = a.listSelections(), d = a.options.tabSize, e = 0; e < c.length; e++) {
-                    var f = c[e].from(),
-                        g = Zf(a.getLine(f.line), f.ch, d);
-                    b.push(new Array(d - g % d + 1)
-                        .join(" "))
-                }
-                a.replaceSelections(b)
-            },
-            defaultTab: function (a) {
-                a.somethingSelected() ? a.indentSelection("add") : a.execCommand("insertTab")
-            },
-            transposeChars: function (a) {
-                cc(a, function () {
-                    for (var b = a.listSelections(), c = [], d = 0; d < b.length; d++) {
-                        var e = b[d].head,
-                            f = ff(a.doc, e.line)
-                            .text;
-                        if (f)
-                            if (e.ch == f.length && (e = new oa(e.line, e.ch - 1)), e.ch > 0) e = new oa(e.line, e.ch + 1), a.replaceRange(f.charAt(e.ch - 1) + f.charAt(e.ch - 2), oa(e.line, e.ch - 2), e, "+transpose");
-                            else if (e.line > a.doc.first) {
-                            var g = ff(a.doc, e.line - 1)
-                                .text;
-                            g && a.replaceRange(f.charAt(0) + a.doc.lineSeparator() + g.charAt(g.length - 1), oa(e.line - 1, g.length - 1), oa(e.line, 1), "+transpose")
-                        }
-                        c.push(new Ka(e, e))
-                    }
-                    a.setSelections(c)
-                })
-            },
-            newlineAndIndent: function (a) {
-                cc(a, function () {
-                    for (var b = a.listSelections()
-                            .length, c = 0; b > c; c++) {
-                        var d = a.listSelections()[c];
-                        a.replaceRange(a.doc.lineSeparator(), d.anchor, d.head, "+input"), a.indentLine(d.from()
-                            .line + 1, null, !0), td(a)
-                    }
-                })
-            },
-            toggleOverwrite: function (a) {
-                a.toggleOverwrite()
-            }
-        },
-        Md = v.keyMap = {};
-    Md.basic = {
-        Left: "goCharLeft",
-        Right: "goCharRight",
-        Up: "goLineUp",
-        Down: "goLineDown",
-        End: "goLineEnd",
-        Home: "goLineStartSmart",
-        PageUp: "goPageUp",
-        PageDown: "goPageDown",
-        Delete: "delCharAfter",
-        Backspace: "delCharBefore",
-        "Shift-Backspace": "delCharBefore",
-        Tab: "defaultTab",
-        "Shift-Tab": "indentAuto",
-        Enter: "newlineAndIndent",
-        Insert: "toggleOverwrite",
-        Esc: "singleSelection"
-    }, Md.pcDefault = {
-        "Ctrl-A": "selectAll",
-        "Ctrl-D": "deleteLine",
-        "Ctrl-Z": "undo",
-        "Shift-Ctrl-Z": "redo",
-        "Ctrl-Y": "redo",
-        "Ctrl-Home": "goDocStart",
-        "Ctrl-End": "goDocEnd",
-        "Ctrl-Up": "goLineUp",
-        "Ctrl-Down": "goLineDown",
-        "Ctrl-Left": "goGroupLeft",
-        "Ctrl-Right": "goGroupRight",
-        "Alt-Left": "goLineStart",
-        "Alt-Right": "goLineEnd",
-        "Ctrl-Backspace": "delGroupBefore",
-        "Ctrl-Delete": "delGroupAfter",
-        "Ctrl-S": "save",
-        "Ctrl-F": "find",
-        "Ctrl-G": "findNext",
-        "Shift-Ctrl-G": "findPrev",
-        "Shift-Ctrl-F": "replace",
-        "Shift-Ctrl-R": "replaceAll",
-        "Ctrl-[": "indentLess",
-        "Ctrl-]": "indentMore",
-        "Ctrl-U": "undoSelection",
-        "Shift-Ctrl-U": "redoSelection",
-        "Alt-U": "redoSelection",
-        fallthrough: "basic"
-    }, Md.emacsy = {
-        "Ctrl-F": "goCharRight",
-        "Ctrl-B": "goCharLeft",
-        "Ctrl-P": "goLineUp",
-        "Ctrl-N": "goLineDown",
-        "Alt-F": "goWordRight",
-        "Alt-B": "goWordLeft",
-        "Ctrl-A": "goLineStart",
-        "Ctrl-E": "goLineEnd",
-        "Ctrl-V": "goPageDown",
-        "Shift-Ctrl-V": "goPageUp",
-        "Ctrl-D": "delCharAfter",
-        "Ctrl-H": "delCharBefore",
-        "Alt-D": "delWordAfter",
-        "Alt-Backspace": "delWordBefore",
-        "Ctrl-K": "killLine",
-        "Ctrl-T": "transposeChars"
-    }, Md.macDefault = {
-        "Cmd-A": "selectAll",
-        "Cmd-D": "deleteLine",
-        "Cmd-Z": "undo",
-        "Shift-Cmd-Z": "redo",
-        "Cmd-Y": "redo",
-        "Cmd-Home": "goDocStart",
-        "Cmd-Up": "goDocStart",
-        "Cmd-End": "goDocEnd",
-        "Cmd-Down": "goDocEnd",
-        "Alt-Left": "goGroupLeft",
-        "Alt-Right": "goGroupRight",
-        "Cmd-Left": "goLineLeft",
-        "Cmd-Right": "goLineRight",
-        "Alt-Backspace": "delGroupBefore",
-        "Ctrl-Alt-Backspace": "delGroupAfter",
-        "Alt-Delete": "delGroupAfter",
-        "Cmd-S": "save",
-        "Cmd-F": "find",
-        "Cmd-G": "findNext",
-        "Shift-Cmd-G": "findPrev",
-        "Cmd-Alt-F": "replace",
-        "Shift-Cmd-Alt-F": "replaceAll",
-        "Cmd-[": "indentLess",
-        "Cmd-]": "indentMore",
-        "Cmd-Backspace": "delWrappedLineLeft",
-        "Cmd-Delete": "delWrappedLineRight",
-        "Cmd-U": "undoSelection",
-        "Shift-Cmd-U": "redoSelection",
-        "Ctrl-Up": "goDocStart",
-        "Ctrl-Down": "goDocEnd",
-        fallthrough: ["basic", "emacsy"]
-    }, Md["default"] = o ? Md.macDefault : Md.pcDefault, v.normalizeKeyMap = function (a) {
-        var b = {};
-        for (var c in a)
-            if (a.hasOwnProperty(c)) {
-                var d = a[c];
-                if (/^(name|fallthrough|(de|at)tach)$/.test(c)) continue;
-                if ("..." == d) {
-                    delete a[c];
-                    continue
-                }
-                for (var e = eg(c.split(" "), Nd), f = 0; f < e.length; f++) {
-                    var g, h;
-                    f == e.length - 1 ? (h = e.join(" "), g = d) : (h = e.slice(0, f + 1)
-                        .join(" "), g = "...");
-                    var i = b[h];
-                    if (i) {
-                        if (i != g) throw new Error("Inconsistent bindings for " + h)
-                    } else b[h] = g
-                }
-                delete a[c]
-            }
-        for (var j in b) a[j] = b[j];
-        return a
-    };
-    var Od = v.lookupKey = function (a, b, c, d) {
-            b = Rd(b);
-            var e = b.call ? b.call(a, d) : b[a];
-            if (e === !1) return "nothing";
-            if ("..." === e) return "multi";
-            if (null != e && c(e)) return "handled";
-            if (b.fallthrough) {
-                if ("[object Array]" != Object.prototype.toString.call(b.fallthrough)) return Od(a, b.fallthrough, c, d);
-                for (var f = 0; f < b.fallthrough.length; f++) {
-                    var g = Od(a, b.fallthrough[f], c, d);
-                    if (g) return g
-                }
-            }
-        },
-        Pd = v.isModifierKey = function (a) {
-            var b = "string" == typeof a ? a : Ng[a.keyCode];
-            return "Ctrl" == b || "Alt" == b || "Shift" == b || "Mod" == b
-        },
-        Qd = v.keyName = function (a, b) {
-            if (i && 34 == a.keyCode && a["char"]) return !1;
-            var c = Ng[a.keyCode],
-                d = c;
-            return null == d || a.altGraphKey ? !1 : (a.altKey && "Alt" != c && (d = "Alt-" + d), (r ? a.metaKey : a.ctrlKey) && "Ctrl" != c && (d = "Ctrl-" + d), (r ? a.ctrlKey : a.metaKey) && "Cmd" != c && (d = "Cmd-" + d), !b && a.shiftKey && "Shift" != c && (d = "Shift-" + d), d)
-        };
-    v.fromTextArea = function (a, b) {
-        function d() {
-            a.value = i.getValue()
-        }
-        if (b = b ? hg(b) : {}, b.value = a.value, !b.tabindex && a.tabIndex && (b.tabindex = a.tabIndex), !b.placeholder && a.placeholder && (b.placeholder = a.placeholder), null == b.autofocus) {
-            var c = ug();
-            b.autofocus = c == a || null != a.getAttribute("autofocus") && c == document.body
-        }
-        if (a.form && (Jf(a.form, "submit", d), !b.leaveSubmitMethodAlone)) {
-            var e = a.form,
-                f = e.submit;
-            try {
-                var g = e.submit = function () {
-                    d(), e.submit = f, e.submit(), e.submit = g
-                }
-            } catch (h) {}
-        }
-        b.finishInit = function (b) {
-            b.save = d, b.getTextArea = function () {
-                return a
-            }, b.toTextArea = function () {
-                b.toTextArea = isNaN, d(), a.parentNode.removeChild(b.getWrapperElement()), a.style.display = "", a.form && (Kf(a.form, "submit", d), "function" == typeof a.form.submit && (a.form.submit = f))
-            }
-        }, a.style.display = "none";
-        var i = v(function (b) {
-            a.parentNode.insertBefore(b, a.nextSibling)
-        }, b);
-        return i
-    };
-    var Sd = v.StringStream = function (a, b) {
-        this.pos = this.start = 0, this.string = a, this.tabSize = b || 8, this.lastColumnPos = this.lastColumnValue = 0, this.lineStart = 0
-    };
-    Sd.prototype = {
-        eol: function () {
-            return this.pos >= this.string.length
-        },
-        sol: function () {
-            return this.pos == this.lineStart
-        },
-        peek: function () {
-            return this.string.charAt(this.pos) || void 0
-        },
-        next: function () {
-            return this.pos < this.string.length ? this.string.charAt(this.pos++) : void 0
-        },
-        eat: function (a) {
-            var b = this.string.charAt(this.pos);
-            if ("string" == typeof a) var c = b == a;
-            else var c = b && (a.test ? a.test(b) : a(b));
-            return c ? (++this.pos, b) : void 0
-        },
-        eatWhile: function (a) {
-            for (var b = this.pos; this.eat(a););
-            return this.pos > b
-        },
-        eatSpace: function () {
-            for (var a = this.pos;
-                /[\s\u00a0]/.test(this.string.charAt(this.pos));) ++this.pos;
-            return this.pos > a
-        },
-        skipToEnd: function () {
-            this.pos = this.string.length
-        },
-        skipTo: function (a) {
-            var b = this.string.indexOf(a, this.pos);
-            return b > -1 ? (this.pos = b, !0) : void 0
-        },
-        backUp: function (a) {
-            this.pos -= a
-        },
-        column: function () {
-            return this.lastColumnPos < this.start && (this.lastColumnValue = Zf(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue), this.lastColumnPos = this.start), this.lastColumnValue - (this.lineStart ? Zf(this.string, this.lineStart, this.tabSize) : 0)
-        },
-        indentation: function () {
-            return Zf(this.string, null, this.tabSize) - (this.lineStart ? Zf(this.string, this.lineStart, this.tabSize) : 0)
-        },
-        match: function (a, b, c) {
-            if ("string" != typeof a) {
-                var f = this.string.slice(this.pos)
-                    .match(a);
-                return f && f.index > 0 ? null : (f && b !== !1 && (this.pos += f[0].length), f)
-            }
-            var d = function (a) {
-                    return c ? a.toLowerCase() : a
-                },
-                e = this.string.substr(this.pos, a.length);
-            return d(e) == d(a) ? (b !== !1 && (this.pos += a.length), !0) : void 0
-        },
-        current: function () {
-            return this.string.slice(this.start, this.pos)
-        },
-        hideFirstChars: function (a, b) {
-            this.lineStart += a;
-            try {
-                return b()
-            } finally {
-                this.lineStart -= a
-            }
-        }
-    };
-    var Td = 0,
-        Ud = v.TextMarker = function (a, b) {
-            this.lines = [], this.type = b, this.doc = a, this.id = ++Td
-        };
-    Sf(Ud), Ud.prototype.clear = function () {
-        if (!this.explicitlyCleared) {
-            var a = this.doc.cm,
-                b = a && !a.curOp;
-            if (b && Vb(a), Rf(this, "clear")) {
-                var c = this.find();
-                c && Nf(this, "clear", c.from, c.to)
-            }
-            for (var d = null, e = null, f = 0; f < this.lines.length; ++f) {
-                var g = this.lines[f],
-                    h = ae(g.markedSpans, this);
-                a && !this.collapsed ? jc(a, kf(g), "text") : a && (null != h.to && (e = kf(g)), null != h.from && (d = kf(g))), g.markedSpans = be(g.markedSpans, h), null == h.from && this.collapsed && !we(this.doc, g) && a && jf(g, Rb(a.display))
-            }
-            if (a && this.collapsed && !a.options.lineWrapping)
-                for (var f = 0; f < this.lines.length; ++f) {
-                    var i = se(this.lines[f]),
-                        j = G(i);
-                    j > a.display.maxLineLength && (a.display.maxLine = i, a.display.maxLineLength = j, a.display.maxLineChanged = !0)
-                }
-            null != d && a && this.collapsed && ic(a, d, e + 1), this.lines.length = 0, this.explicitlyCleared = !0, this.atomic && this.doc.cantEdit && (this.doc.cantEdit = !1, a && ab(a.doc)), a && Nf(a, "markerCleared", a, this), b && Xb(a), this.parent && this.parent.clear()
-        }
-    }, Ud.prototype.find = function (a, b) {
-        null == a && "bookmark" == this.type && (a = 1);
-        for (var c, d, e = 0; e < this.lines.length; ++e) {
-            var f = this.lines[e],
-                g = ae(f.markedSpans, this);
-            if (null != g.from && (c = oa(b ? f : kf(f), g.from), -1 == a)) return c;
-            if (null != g.to && (d = oa(b ? f : kf(f), g.to), 1 == a)) return d
-        }
-        return c && {
-            from: c,
-            to: d
-        }
-    }, Ud.prototype.changed = function () {
-        var a = this.find(-1, !0),
-            b = this,
-            c = this.doc.cm;
-        a && c && cc(c, function () {
-            var d = a.line,
-                e = kf(a.line),
-                f = wb(c, e);
-            if (f && (Db(f), c.curOp.selectionChanged = c.curOp.forceUpdate = !0), c.curOp.updateMaxLine = !0, !we(b.doc, d) && null != b.height) {
-                var g = b.height;
-                b.height = null;
-                var h = Ae(b) - g;
-                h && jf(d, d.height + h)
-            }
-        })
-    }, Ud.prototype.attachLine = function (a) {
-        if (!this.lines.length && this.doc.cm) {
-            var b = this.doc.cm.curOp;
-            b.maybeHiddenMarkers && -1 != dg(b.maybeHiddenMarkers, this) || (b.maybeUnhiddenMarkers || (b.maybeUnhiddenMarkers = []))
-                .push(this)
-        }
-        this.lines.push(a)
-    }, Ud.prototype.detachLine = function (a) {
-        if (this.lines.splice(dg(this.lines, a), 1), !this.lines.length && this.doc.cm) {
-            var b = this.doc.cm.curOp;
-            (b.maybeHiddenMarkers || (b.maybeHiddenMarkers = []))
-            .push(this)
-        }
-    };
-    var Td = 0,
-        Wd = v.SharedTextMarker = function (a, b) {
-            this.markers = a, this.primary = b;
-            for (var c = 0; c < a.length; ++c) a[c].parent = this
-        };
-    Sf(Wd), Wd.prototype.clear = function () {
-        if (!this.explicitlyCleared) {
-            this.explicitlyCleared = !0;
-            for (var a = 0; a < this.markers.length; ++a) this.markers[a].clear();
-            Nf(this, "clear")
-        }
-    }, Wd.prototype.find = function (a, b) {
-        return this.primary.find(a, b)
-    };
-    var ye = v.LineWidget = function (a, b, c) {
-        if (c)
-            for (var d in c) c.hasOwnProperty(d) && (this[d] = c[d]);
-        this.doc = a, this.node = b
-    };
-    Sf(ye), ye.prototype.clear = function () {
-        var a = this.doc.cm,
-            b = this.line.widgets,
-            c = this.line,
-            d = kf(c);
-        if (null != d && b) {
-            for (var e = 0; e < b.length; ++e) b[e] == this && b.splice(e--, 1);
-            b.length || (c.widgets = null);
-            var f = Ae(this);
-            jf(c, Math.max(0, c.height - f)), a && cc(a, function () {
-                ze(a, c, -f), jc(a, d, "widget")
-            })
-        }
-    }, ye.prototype.changed = function () {
-        var a = this.height,
-            b = this.doc.cm,
-            c = this.line;
-        this.height = null;
-        var d = Ae(this) - a;
-        d && (jf(c, c.height + d), b && cc(b, function () {
-            b.curOp.forceUpdate = !0, ze(b, c, d)
-        }))
-    };
-    var Ce = v.Line = function (a, b, c) {
-        this.text = a, ke(this, b), this.height = c ? c(this) : 1
-    };
-    Sf(Ce), Ce.prototype.lineNo = function () {
-        return kf(this)
-    };
-    var Ne = {},
-        Oe = {};
-    Ze.prototype = {
-        chunkSize: function () {
-            return this.lines.length
-        },
-        removeInner: function (a, b) {
-            for (var c = a, d = a + b; d > c; ++c) {
-                var e = this.lines[c];
-                this.height -= e.height, Ee(e), Nf(e, "delete")
-            }
-            this.lines.splice(a, b)
-        },
-        collapse: function (a) {
-            a.push.apply(a, this.lines)
-        },
-        insertInner: function (a, b, c) {
-            this.height += c, this.lines = this.lines.slice(0, a)
-                .concat(b)
-                .concat(this.lines.slice(a));
-            for (var d = 0; d < b.length; ++d) b[d].parent = this
-        },
-        iterN: function (a, b, c) {
-            for (var d = a + b; d > a; ++a)
-                if (c(this.lines[a])) return !0
-        }
-    }, $e.prototype = {
-        chunkSize: function () {
-            return this.size
-        },
-        removeInner: function (a, b) {
-            this.size -= b;
-            for (var c = 0; c < this.children.length; ++c) {
-                var d = this.children[c],
-                    e = d.chunkSize();
-                if (e > a) {
-                    var f = Math.min(b, e - a),
-                        g = d.height;
-                    if (d.removeInner(a, f), this.height -= g - d.height, e == f && (this.children.splice(c--, 1), d.parent = null), 0 == (b -= f)) break;
-                    a = 0
-                } else a -= e
-            }
-            if (this.size - b < 25 && (this.children.length > 1 || !(this.children[0] instanceof Ze))) {
-                var h = [];
-                this.collapse(h), this.children = [new Ze(h)], this.children[0].parent = this
-            }
-        },
-        collapse: function (a) {
-            for (var b = 0; b < this.children.length; ++b) this.children[b].collapse(a)
-        },
-        insertInner: function (a, b, c) {
-            this.size += b.length, this.height += c;
-            for (var d = 0; d < this.children.length; ++d) {
-                var e = this.children[d],
-                    f = e.chunkSize();
-                if (f >= a) {
-                    if (e.insertInner(a, b, c), e.lines && e.lines.length > 50) {
-                        for (; e.lines.length > 50;) {
-                            var g = e.lines.splice(e.lines.length - 25, 25),
-                                h = new Ze(g);
-                            e.height -= h.height, this.children.splice(d + 1, 0, h), h.parent = this
-                        }
-                        this.maybeSpill()
-                    }
-                    break
-                }
-                a -= f
-            }
-        },
-        maybeSpill: function () {
-            if (!(this.children.length <= 10)) {
-                var a = this;
-                do {
-                    var b = a.children.splice(a.children.length - 5, 5),
-                        c = new $e(b);
-                    if (a.parent) {
-                        a.size -= c.size, a.height -= c.height;
-                        var e = dg(a.parent.children, a);
-                        a.parent.children.splice(e + 1, 0, c)
-                    } else {
-                        var d = new $e(a.children);
-                        d.parent = a, a.children = [d, c], a = d
-                    }
-                    c.parent = a.parent
-                } while (a.children.length > 10);
-                a.parent.maybeSpill()
-            }
-        },
-        iterN: function (a, b, c) {
-            for (var d = 0; d < this.children.length; ++d) {
-                var e = this.children[d],
-                    f = e.chunkSize();
-                if (f > a) {
-                    var g = Math.min(b, f - a);
-                    if (e.iterN(a, g, c)) return !0;
-                    if (0 == (b -= g)) break;
-                    a = 0
-                } else a -= f
-            }
-        }
-    };
-    var _e = 0,
-        af = v.Doc = function (a, b, c, d) {
-            if (!(this instanceof af)) return new af(a, b, c, d);
-            null == c && (c = 0), $e.call(this, [new Ze([new Ce("", null)])]), this.first = c, this.scrollTop = this.scrollLeft = 0, this.cantEdit = !1, this.cleanGeneration = 1, this.frontier = c;
-            var e = oa(c, 0);
-            this.sel = Ma(e), this.history = new of(null), this.id = ++_e, this.modeOption = b, this.lineSep = d, "string" == typeof a && (a = this.splitLines(a)), Ye(this, {
-                from: e,
-                to: e,
-                text: a
-            }), Za(this, Ma(e), Vf)
-        };
-    af.prototype = gg($e.prototype, {
-        constructor: af,
-        iter: function (a, b, c) {
-            c ? this.iterN(a - this.first, b - a, c) : this.iterN(this.first, this.first + this.size, a)
-        },
-        insert: function (a, b) {
-            for (var c = 0, d = 0; d < b.length; ++d) c += b[d].height;
-            this.insertInner(a - this.first, b, c)
-        },
-        remove: function (a, b) {
-            this.removeInner(a - this.first, b)
-        },
-        getValue: function (a) {
-            var b = hf(this, this.first, this.first + this.size);
-            return a === !1 ? b : b.join(a || this.lineSeparator())
-        },
-        setValue: fc(function (a) {
-            var b = oa(this.first, 0),
-                c = this.first + this.size - 1;
-            hd(this, {
-                from: b,
-                to: oa(c, ff(this, c)
-                    .text.length),
-                text: this.splitLines(a),
-                origin: "setValue",
-                full: !0
-            }, !0), Za(this, Ma(b))
-        }),
-        replaceRange: function (a, b, c, d) {
-            b = Oa(this, b), c = c ? Oa(this, c) : b, nd(this, a, b, c, d)
-        },
-        getRange: function (a, b, c) {
-            var d = gf(this, Oa(this, a), Oa(this, b));
-            return c === !1 ? d : d.join(c || this.lineSeparator())
-        },
-        getLine: function (a) {
-            var b = this.getLineHandle(a);
-            return b && b.text
-        },
-        getLineHandle: function (a) {
-            return Qa(this, a) ? ff(this, a) : void 0
-        },
-        getLineNumber: function (a) {
-            return kf(a)
-        },
-        getLineHandleVisualStart: function (a) {
-            return "number" == typeof a && (a = ff(this, a)), se(a)
-        },
-        lineCount: function () {
-            return this.size
-        },
-        firstLine: function () {
-            return this.first
-        },
-        lastLine: function () {
-            return this.first + this.size - 1
-        },
-        clipPos: function (a) {
-            return Oa(this, a)
-        },
-        getCursor: function (a) {
-            var c, b = this.sel.primary();
-            return c = null == a || "head" == a ? b.head : "anchor" == a ? b.anchor : "end" == a || "to" == a || a === !1 ? b.to() : b.from()
-        },
-        listSelections: function () {
-            return this.sel.ranges
-        },
-        somethingSelected: function () {
-            return this.sel.somethingSelected()
-        },
-        setCursor: fc(function (a, b, c) {
-            Wa(this, Oa(this, "number" == typeof a ? oa(a, b || 0) : a), null, c)
-        }),
-        setSelection: fc(function (a, b, c) {
-            Wa(this, Oa(this, a), Oa(this, b || a), c)
-        }),
-        extendSelection: fc(function (a, b, c) {
-            Ta(this, Oa(this, a), b && Oa(this, b), c)
-        }),
-        extendSelections: fc(function (a, b) {
-            Ua(this, Ra(this, a, b))
-        }),
-        extendSelectionsBy: fc(function (a, b) {
-            Ua(this, eg(this.sel.ranges, a), b)
-        }),
-        setSelections: fc(function (a, b, c) {
-            if (a.length) {
-                for (var d = 0, e = []; d < a.length; d++) e[d] = new Ka(Oa(this, a[d].anchor), Oa(this, a[d].head));
-                null == b && (b = Math.min(a.length - 1, this.sel.primIndex)), Za(this, La(e, b), c)
-            }
-        }),
-        addSelection: fc(function (a, b, c) {
-            var d = this.sel.ranges.slice(0);
-            d.push(new Ka(Oa(this, a), Oa(this, b || a))), Za(this, La(d, d.length - 1), c)
-        }),
-        getSelection: function (a) {
-            for (var c, b = this.sel.ranges, d = 0; d < b.length; d++) {
-                var e = gf(this, b[d].from(), b[d].to());
-                c = c ? c.concat(e) : e
-            }
-            return a === !1 ? c : c.join(a || this.lineSeparator())
-        },
-        getSelections: function (a) {
-            for (var b = [], c = this.sel.ranges, d = 0; d < c.length; d++) {
-                var e = gf(this, c[d].from(), c[d].to());
-                a !== !1 && (e = e.join(a || this.lineSeparator())), b[d] = e
-            }
-            return b
-        },
-        replaceSelection: function (a, b, c) {
-            for (var d = [], e = 0; e < this.sel.ranges.length; e++) d[e] = a;
-            this.replaceSelections(d, b, c || "+input")
-        },
-        replaceSelections: fc(function (a, b, c) {
-            for (var d = [], e = this.sel, f = 0; f < e.ranges.length; f++) {
-                var g = e.ranges[f];
-                d[f] = {
-                    from: g.from(),
-                    to: g.to(),
-                    text: this.splitLines(a[f]),
-                    origin: c
-                }
-            }
-            for (var h = b && "end" != b && fd(this, d, b), f = d.length - 1; f >= 0; f--) hd(this, d[f]);
-            h ? Ya(this, h) : this.cm && td(this.cm)
-        }),
-        undo: fc(function () {
-            jd(this, "undo")
-        }),
-        redo: fc(function () {
-            jd(this, "redo")
-        }),
-        undoSelection: fc(function () {
-            jd(this, "undo", !0)
-        }),
-        redoSelection: fc(function () {
-            jd(this, "redo", !0)
-        }),
-        setExtending: function (a) {
-            this.extend = a
-        },
-        getExtending: function () {
-            return this.extend
-        },
-        historySize: function () {
-            for (var a = this.history, b = 0, c = 0, d = 0; d < a.done.length; d++) a.done[d].ranges || ++b;
-            for (var d = 0; d < a.undone.length; d++) a.undone[d].ranges || ++c;
-            return {
-                undo: b,
-                redo: c
-            }
-        },
-        clearHistory: function () {
-            this.history = new of(this.history.maxGeneration)
-        },
-        markClean: function () {
-            this.cleanGeneration = this.changeGeneration(!0)
-        },
-        changeGeneration: function (a) {
-            return a && (this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null), this.history.generation
-        },
-        isClean: function (a) {
-            return this.history.generation == (a || this.cleanGeneration)
-        },
-        getHistory: function () {
-            return {
-                done: zf(this.history.done),
-                undone: zf(this.history.undone)
-            }
-        },
-        setHistory: function (a) {
-            var b = this.history = new of(this.history.maxGeneration);
-            b.done = zf(a.done.slice(0), null, !0), b.undone = zf(a.undone.slice(0), null, !0)
-        },
-        addLineClass: fc(function (a, b, c) {
-            return wd(this, a, "gutter" == b ? "gutter" : "class", function (a) {
-                var d = "text" == b ? "textClass" : "background" == b ? "bgClass" : "gutter" == b ? "gutterClass" : "wrapClass";
-                if (a[d]) {
-                    if (vg(c)
-                        .test(a[d])) return !1;
-                    a[d] += " " + c
-                } else a[d] = c;
-                return !0
-            })
-        }),
-        removeLineClass: fc(function (a, b, c) {
-            return wd(this, a, "gutter" == b ? "gutter" : "class", function (a) {
-                var d = "text" == b ? "textClass" : "background" == b ? "bgClass" : "gutter" == b ? "gutterClass" : "wrapClass",
-                    e = a[d];
-                if (!e) return !1;
-                if (null == c) a[d] = null;
-                else {
-                    var f = e.match(vg(c));
-                    if (!f) return !1;
-                    var g = f.index + f[0].length;
-                    a[d] = e.slice(0, f.index) + (f.index && g != e.length ? " " : "") + e.slice(g) || null
-                }
-                return !0
-            })
-        }),
-        addLineWidget: fc(function (a, b, c) {
-            return Be(this, a, b, c)
-        }),
-        removeLineWidget: function (a) {
-            a.clear()
-        },
-        markText: function (a, b, c) {
-            return Vd(this, Oa(this, a), Oa(this, b), c, "range")
-        },
-        setBookmark: function (a, b) {
-            var c = {
-                replacedWith: b && (null == b.nodeType ? b.widget : b),
-                insertLeft: b && b.insertLeft,
-                clearWhenEmpty: !1,
-                shared: b && b.shared,
-                handleMouseEvents: b && b.handleMouseEvents
-            };
-            return a = Oa(this, a), Vd(this, a, a, c, "bookmark")
-        },
-        findMarksAt: function (a) {
-            a = Oa(this, a);
-            var b = [],
-                c = ff(this, a.line)
-                .markedSpans;
-            if (c)
-                for (var d = 0; d < c.length; ++d) {
-                    var e = c[d];
-                    (null == e.from || e.from <= a.ch) && (null == e.to || e.to >= a.ch) && b.push(e.marker.parent || e.marker)
-                }
-            return b
-        },
-        findMarks: function (a, b, c) {
-            a = Oa(this, a), b = Oa(this, b);
-            var d = [],
-                e = a.line;
-            return this.iter(a.line, b.line + 1, function (f) {
-                var g = f.markedSpans;
-                if (g)
-                    for (var h = 0; h < g.length; h++) {
-                        var i = g[h];
-                        e == a.line && a.ch > i.to || null == i.from && e != a.line || e == b.line && i.from > b.ch || c && !c(i.marker) || d.push(i.marker.parent || i.marker)
-                    }++e
-            }), d
-        },
-        getAllMarks: function () {
-            var a = [];
-            return this.iter(function (b) {
-                var c = b.markedSpans;
-                if (c)
-                    for (var d = 0; d < c.length; ++d) null != c[d].from && a.push(c[d].marker)
-            }), a
-        },
-        posFromIndex: function (a) {
-            var b, c = this.first;
-            return this.iter(function (d) {
-                var e = d.text.length + 1;
-                return e > a ? (b = a, !0) : (a -= e, void++c)
-            }), Oa(this, oa(c, b))
-        },
-        indexFromPos: function (a) {
-            a = Oa(this, a);
-            var b = a.ch;
-            return a.line < this.first || a.ch < 0 ? 0 : (this.iter(this.first, a.line, function (a) {
-                b += a.text.length + 1
-            }), b)
-        },
-        copy: function (a) {
-            var b = new af(hf(this, this.first, this.first + this.size), this.modeOption, this.first, this.lineSep);
-            return b.scrollTop = this.scrollTop, b.scrollLeft = this.scrollLeft, b.sel = this.sel, b.extend = !1, a && (b.history.undoDepth = this.history.undoDepth, b.setHistory(this.getHistory())), b
-        },
-        linkedDoc: function (a) {
-            a || (a = {});
-            var b = this.first,
-                c = this.first + this.size;
-            null != a.from && a.from > b && (b = a.from), null != a.to && a.to < c && (c = a.to);
-            var d = new af(hf(this, b, c), a.mode || this.modeOption, b, this.lineSep);
-            return a.sharedHist && (d.history = this.history), (this.linked || (this.linked = []))
-                .push({
-                    doc: d,
-                    sharedHist: a.sharedHist
-                }), d.linked = [{
-                    doc: this,
-                    isParent: !0,
-                    sharedHist: a.sharedHist
-                }], Zd(d, Yd(this)), d
-        },
-        unlinkDoc: function (a) {
-            if (a instanceof v && (a = a.doc), this.linked)
-                for (var b = 0; b < this.linked.length; ++b) {
-                    var c = this.linked[b];
-                    if (c.doc == a) {
-                        this.linked.splice(b, 1), a.unlinkDoc(this), $d(Yd(this));
-                        break
-                    }
-                }
-            if (a.history == this.history) {
-                var d = [a.id];
-                df(a, function (a) {
-                    d.push(a.id)
-                }, !0), a.history = new of(null), a.history.done = zf(this.history.done, d), a.history.undone = zf(this.history.undone, d)
-            }
-        },
-        iterLinkedDocs: function (a) {
-            df(this, a)
-        },
-        getMode: function () {
-            return this.mode
-        },
-        getEditor: function () {
-            return this.cm
-        },
-        splitLines: function (a) {
-            return this.lineSep ? a.split(this.lineSep) : Ig(a)
-        },
-        lineSeparator: function () {
-            return this.lineSep || "\n"
-        }
-    }), af.prototype.eachLine = af.prototype.iter;
-    var bf = "iter insert remove copy getEditor constructor".split(" ");
-    for (var cf in af.prototype) af.prototype.hasOwnProperty(cf) && dg(bf, cf) < 0 && (v.prototype[cf] = function (a) {
-        return function () {
-            return a.apply(this.doc, arguments)
-        }
-    }(af.prototype[cf]));
-    Sf(af);
-    var Df = v.e_preventDefault = function (a) {
-            a.preventDefault ? a.preventDefault() : a.returnValue = !1
-        },
-        Ef = v.e_stopPropagation = function (a) {
-            a.stopPropagation ? a.stopPropagation() : a.cancelBubble = !0
-        },
-        Gf = v.e_stop = function (a) {
-            Df(a), Ef(a)
-        },
-        Jf = v.on = function (a, b, c) {
-            if (a.addEventListener) a.addEventListener(b, c, !1);
-            else if (a.attachEvent) a.attachEvent("on" + b, c);
-            else {
-                var d = a._handlers || (a._handlers = {}),
-                    e = d[b] || (d[b] = []);
-                e.push(c)
-            }
-        },
-        Kf = v.off = function (a, b, c) {
-            if (a.removeEventListener) a.removeEventListener(b, c, !1);
-            else if (a.detachEvent) a.detachEvent("on" + b, c);
-            else {
-                var d = a._handlers && a._handlers[b];
-                if (!d) return;
-                for (var e = 0; e < d.length; ++e)
-                    if (d[e] == c) {
-                        d.splice(e, 1);
-                        break
-                    }
-            }
-        },
-        Lf = v.signal = function (a, b) {
-            var c = a._handlers && a._handlers[b];
-            if (c)
-                for (var d = Array.prototype.slice.call(arguments, 2), e = 0; e < c.length; ++e) c[e].apply(null, d)
-        },
-        Mf = null,
-        Tf = 30,
-        Uf = v.Pass = {
-            toString: function () {
-                return "CodeMirror.Pass"
-            }
-        },
-        Vf = {
-            scroll: !1
-        },
-        Wf = {
-            origin: "*mouse"
-        },
-        Xf = {
-            origin: "+move"
-        };
-    Yf.prototype.set = function (a, b) {
-        clearTimeout(this.id), this.id = setTimeout(b, a)
-    };
-    var Zf = v.countColumn = function (a, b, c, d, e) {
-            null == b && (b = a.search(/[^\s\u00a0]/), -1 == b && (b = a.length));
-            for (var f = d || 0, g = e || 0;;) {
-                var h = a.indexOf("	", f);
-                if (0 > h || h >= b) return g + (b - f);
-                g += h - f, g += c - g % c, f = h + 1
-            }
-        },
-        $f = v.findColumn = function (a, b, c) {
-            for (var d = 0, e = 0;;) {
-                var f = a.indexOf("	", d); - 1 == f && (f = a.length);
-                var g = f - d;
-                if (f == a.length || e + g >= b) return d + Math.min(g, b - e);
-                if (e += f - d, e += c - e % c, d = f + 1, e >= b) return d
-            }
-        },
-        _f = [""],
-        cg = function (a) {
-            a.select()
-        };
-    m ? cg = function (a) {
-        a.selectionStart = 0, a.selectionEnd = a.value.length
-    } : d && (cg = function (a) {
-        try {
-            a.select()
-        } catch (b) {}
-    });
-    var qg, jg = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/,
-        kg = v.isWordChar = function (a) {
-            return /\w/.test(a) || a > "\x80" && (a.toUpperCase() != a.toLowerCase() || jg.test(a))
-        },
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-                a.className = c.slice(0, d.index) + (e ? d[1] + e : "")
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-        },
-        xg = v.addClass = function (a, b) {
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-            vg(b)
-                .test(c) || (a.className += (c ? " " : "") + b)
-        },
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-        Dg = function () {
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-            var a = pg("div");
-            return "draggable" in a || "dragDrop" in a
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-        Ig = v.splitLines = 3 != "\n\nb".split(/\n/)
-        .length ? function (a) {
-            for (var b = 0, c = [], d = a.length; d >= b;) {
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-            return c
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-                return !1
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-                var b = a.ownerDocument.selection.createRange()
-            } catch (c) {}
-            return b && b.parentElement() == a ? 0 != b.compareEndPoints("StartToEnd", b) : !1
-        },
-        Kg = function () {
-            var a = pg("div");
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-            13: "Enter",
-            16: "Shift",
-            17: "Ctrl",
-            18: "Alt",
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-            27: "Esc",
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-            63235: "Right",
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-            63273: "Home",
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-            63276: "PageUp",
-            63277: "PageDown",
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-        };
-    v.keyNames = Ng,
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-
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-            h = /[1n]/,
-            i = "L";
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-            for (var l = 0, o = i; b > l; ++l) {
-                var m = k[l];
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-                var m = k[l];
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-            for (var l = 0; b > l; ++l) {
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-    return v.version = "5.6.1", v
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-}(function (a) {
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-        }
-
-        function w(a) {
-            return function (b, c) {
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-                        ")" == a && b.backUp(1);
-                        break
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-                    d = !d && "\\" == e
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-            }
-        }
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-        function x(a, b) {
-            return a.next(), a.match(/\s*[\"\')]/, !1) ? b.tokenize = null : b.tokenize = w(")"), u(null, "(")
-        }
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-        }
-
-        function z(a, b, c, d) {
-            return a.context = new y(c, b.indentation() + (d === !1 ? 0 : e), a.context), c
-        }
-
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-
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-        }
-
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-        }
-        var d = c;
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-            g = c.documentTypes || {},
-            h = c.mediaTypes || {},
-            i = c.mediaFeatures || {},
-            j = c.mediaValueKeywords || {},
-            k = c.propertyKeywords || {},
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-            m = c.fontProperties || {},
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-            o = c.colorKeywords || {},
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-            E = {};
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-            if ("hash" == a) t = "builtin";
-            else if ("word" == a) t = "tag";
-            else {
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-            return c.context.type
-        }, E.block = function (a, b, c) {
-            if ("word" == a) {
-                var d = b.current()
-                    .toLowerCase();
-                return k.hasOwnProperty(d) ? (t = "property", "maybeprop") : l.hasOwnProperty(d) ? (t = "string-2", "maybeprop") : q ? (t = b.match(/^\s*:(?:\s|$)/, !1) ? "property" : "tag", "block") : (t += " error", "maybeprop")
-            }
-            return "meta" == a ? "block" : q || "hash" != a && "qualifier" != a ? E.top(a, b, c) : (t = "error", "block")
-        }, E.maybeprop = function (a, b, c) {
-            return ":" == a ? z(c, b, "prop") : B(a, b, c)
-        }, E.prop = function (a, b, c) {
-            if (";" == a) return A(c);
-            if ("{" == a && q) return z(c, b, "propBlock");
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-                if ("word" == a) D(b);
-                else if ("interpolation" == a) return z(c, b, "interpolation")
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-            return "prop"
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-        }, E.parens = function (a, b, c) {
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-        }, E.pseudo = function (a, b, c) {
-            return "word" == a ? (t = "variable-3", c.context.type) : B(a, b, c)
-        }, E.documentTypes = function (a, b, c) {
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-        }, E.atBlock = function (a, b, c) {
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-            if ("{" == a) return A(c) && z(c, b, q ? "block" : "top");
-            if ("word" == a) {
-                var d = b.current()
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-            }
-            return c.context.type
-        }, E.atComponentBlock = function (a, b, c) {
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-        }, E.atBlock_parens = function (a, b, c) {
-            return ")" == a ? A(c) : "{" == a || "}" == a ? C(a, b, c, 2) : E.atBlock(a, b, c)
-        }, E.restricted_atBlock_before = function (a, b, c) {
-            return "{" == a ? z(c, b, "restricted_atBlock") : "word" == a && "@counter-style" == c.stateArg ? (t = "variable", "restricted_atBlock_before") : B(a, b, c)
-        }, E.restricted_atBlock = function (a, b, c) {
-            return "}" == a ? (c.stateArg = null, A(c)) : "word" == a ? (t = "@font-face" == c.stateArg && !m.hasOwnProperty(b.current()
-                .toLowerCase()) || "@counter-style" == c.stateArg && !n.hasOwnProperty(b.current()
-                .toLowerCase()) ? "error" : "property", "maybeprop") : "restricted_atBlock"
-        }, E.keyframes = function (a, b, c) {
-            return "word" == a ? (t = "variable", "keyframes") : "{" == a ? z(c, b, "top") : B(a, b, c)
-        }, E.at = function (a, b, c) {
-            return ";" == a ? A(c) : "{" == a || "}" == a ? C(a, b, c) : ("word" == a ? t = "tag" : "hash" == a && (t = "builtin"), "at")
-        }, E.interpolation = function (a, b, c) {
-            return "}" == a ? A(c) : "{" == a || ";" == a ? C(a, b, c) : ("word" == a ? t = "variable" : "variable" != a && "(" != a && ")" != a && (t = "error"), "interpolation")
-        }, {
-            startState: function (a) {
-                return {
-                    tokenize: null,
-                    state: c.inline ? "block" : "top",
-                    stateArg: null,
-                    context: new y(c.inline ? "block" : "top", a || 0, null)
-                }
-            },
-            token: function (a, b) {
-                if (!b.tokenize && a.eatSpace()) return null;
-                var c = (b.tokenize || v)(a, b);
-                return c && "object" == typeof c && (s = c[1], c = c[0]), t = c, b.state = E[b.state](s, a, b), t
-            },
-            indent: function (a, b) {
-                var c = a.context,
-                    d = b && b.charAt(0),
-                    f = c.indent;
-                return "prop" != c.type || "}" != d && ")" != d || (c = c.prev), c.prev && ("}" != d || "block" != c.type && "top" != c.type && "interpolation" != c.type && "restricted_atBlock" != c.type ? (")" == d && ("parens" == c.type || "atBlock_parens" == c.type) || "{" == d && ("at" == c.type || "atBlock" == c.type)) && (f = Math.max(0, c.indent - e), c = c.prev) : (c = c.prev, f = c.indent)), f
-            },
-            electricChars: "}",
-            blockCommentStart: "/*",
-            blockCommentEnd: "*/",
-            fold: "brace"
-        }
-    });
-    var c = ["domain", "regexp", "url", "url-prefix"],
-        d = b(c),
-        e = ["all", "aural", "braille", "handheld", "print", "projection", "screen", "tty", "tv", "embossed"],
-        f = b(e),
-        g = ["width", "min-width", "max-width", "height", "min-height", "max-height", "device-width", "min-device-width", "max-device-width", "device-height", "min-device-height", "max-device-height", "aspect-ratio", "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio", "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color", "max-color", "color-index", "min-color-index", "max-color-index", "monochrome", "min-monochrome", "max-monochrome", "resolution", "min-resolution", "max-resolution", "scan", "grid", "orientation", "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio", "pointer", "any-pointer", "hover", "any-hover"],
-        h = b(g),
-        i = ["landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover", "interlace", "progressive"],
-        j = b(i),
-        k = ["align-content", "align-items", "align-self", "alignment-adjust", "alignment-baseline", "anchor-point", "animation", "animation-delay", "animation-direction", "animation-duration", "animation-fill-mode", "animation-iteration-count", "animation-name", "animation-play-state", "animation-timing-function", "appearance", "azimuth", "backface-visibility", "background", "background-attachment", "background-clip", "background-color", "background-image", "background-origin", "background-position", "background-repeat", "background-size", "baseline-shift", "binding", "bleed", "bookmark-label", "bookmark-level", "bookmark-state", "bookmark-target", "border", "border-bottom", "border-bottom-color", "border-bottom-left-radius", "border-bottom-right-radius", "border-bottom-style", "border-bottom-width", "border-collapse", "border-color", "border-image", "border-image-outset", "border-image-repeat", "border-image-slice", "border-image-source", "border-image-width", "border-left", "border-left-color", "border-left-style", "border-left-width", "border-radius", "border-right", "border-right-color", "border-right-style", "border-right-width", "border-spacing", "border-style", "border-top", "border-top-color", "border-top-left-radius", "border-top-right-radius", "border-top-style", "border-top-width", "border-width", "bottom", "box-decoration-break", "box-shadow", "box-sizing", "break-after", "break-before", "break-inside", "caption-side", "clear", "clip", "color", "color-profile", "column-count", "column-fill", "column-gap", "column-rule", "column-rule-color", "column-rule-style", "column-rule-width", "column-span", "column-width", "columns", "content", "counter-increment", "counter-reset", "crop", "cue", "cue-after", "cue-before", "cursor", "direction", "display", "dominant-baseline", "drop-initial-after-adjust", "drop-initial-after-align", "drop-initial-before-adjust", "drop-initial-before-align", "drop-initial-size", "drop-initial-value", "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis", "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap", "float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings", "font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust", "font-stretch", "font-style", "font-synthesis", "font-variant", "font-variant-alternates", "font-variant-caps", "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric", "font-variant-position", "font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", "grid-auto-position", "grid-auto-rows", "grid-column", "grid-column-end", "grid-column-start", "grid-row", "grid-row-end", "grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns", "grid-template-rows", "hanging-punctuation", "height", "hyphens", "icon", "image-orientation", "image-rendering", "image-resolution", "inline-box-align", "justify-content", "left", "letter-spacing", "line-break", "line-height", "line-stacking", "line-stacking-ruby", "line-stacking-shift", "line-stacking-strategy", "list-style", "list-style-image", "list-style-position", "list-style-type", "margin", "margin-bottom", "margin-left", "margin-right", "margin-top", "marker-offset", "marks", "marquee-direction", "marquee-loop", "marquee-play-count", "marquee-speed", "marquee-style", "max-height", "max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index", "nav-left", "nav-right", "nav-up", "object-fit", "object-position", "opacity", "order", "orphans", "outline", "outline-color", "outline-offset", "outline-style", "outline-width", "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y", "padding", "padding-bottom", "padding-left", "padding-right", "padding-top", "page", "page-break-after", "page-break-before", "page-break-inside", "page-policy", "pause", "pause-after", "pause-before", "perspective", "perspective-origin", "pitch", "pitch-range", "play-during", "position", "presentation-level", "punctuation-trim", "quotes", "region-break-after", "region-break-before", "region-break-inside", "region-fragment", "rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness", "right", "rotation", "rotation-point", "ruby-align", "ruby-overhang", "ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin", "shape-outside", "size", "speak", "speak-as", "speak-header", "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set", "tab-size", "table-layout", "target", "target-name", "target-new", "target-position", "text-align", "text-align-last", "text-decoration", "text-decoration-color", "text-decoration-line", "text-decoration-skip", "text-decoration-style", "text-emphasis", "text-emphasis-color", "text-emphasis-position", "text-emphasis-style", "text-height", "text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow", "text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position", "text-wrap", "top", "transform", "transform-origin", "transform-style", "transition", "transition-delay", "transition-duration", "transition-property", "transition-timing-function", "unicode-bidi", "vertical-align", "visibility", "voice-balance", "voice-duration", "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress", "voice-volume", "volume", "white-space", "widows", "width", "word-break", "word-spacing", "word-wrap", "z-index", "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color", "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events", "color-interpolation", "color-interpolation-filters", "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering", "marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering", "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal", "glyph-orientation-vertical", "text-anchor", "writing-mode"],
-        l = b(k),
-        m = ["scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color", "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color", "scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside", "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button", "searchfield-results-decoration", "zoom"],
-        n = b(m),
-        o = ["font-family", "src", "unicode-range", "font-variant", "font-feature-settings", "font-stretch", "font-weight", "font-style"],
-        p = b(o),
-        q = ["additive-symbols", "fallback", "negative", "pad", "prefix", "range", "speak-as", "suffix", "symbols", "system"],
-        r = b(q),
-        s = ["aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod", "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkturquoise", "darkviolet", "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick", "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender", "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan", "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white", "whitesmoke", "yellow", "yellowgreen"],
-        t = b(s),
-        u = ["above", "absolute", "activeborder", "additive", "activecaption", "afar", "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate", "always", "amharic", "amharic-abegede", "antialiased", "appworkspace", "arabic-indic", "armenian", "asterisks", "attr", "auto", "avoid", "avoid-column", "avoid-page", "avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary", "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box", "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel", "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian", "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret", "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch", "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote", "col-resize", "collapse", "column", "column-reverse", "compact", "condensed", "contain", "content", "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop", "cross", "crosshair", "currentcolor", "cursive", "cyclic", "dashed", "decimal", "decimal-leading-zero", "default", "default-button", "destination-atop", "destination-in", "destination-out", "destination-over", "devanagari", "disc", "discard", "disclosure-closed", "disclosure-open", "document", "dot-dash", "dot-dot-dash", "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out", "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede", "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er", "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er", "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et", "ethiopic-halehame-gez", "ethiopic-halehame-om-et", "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et", "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig", "ethiopic-numeric", "ew-resize", "expanded", "extends", "extra-condensed", "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes", "forwards", "from", "geometricPrecision", "georgian", "graytext", "groove", "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hebrew", "help", "hidden", "hide", "higher", "highlight", "highlighttext", "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore", "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite", "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis", "inline-block", "inline-flex", "inline-table", "inset", "inside", "intrinsic", "invert", "italic", "japanese-formal", "japanese-informal", "justify", "kannada", "katakana", "katakana-iroha", "keep-all", "khmer", "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal", "landscape", "lao", "large", "larger", "left", "level", "lighter", "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem", "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian", "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian", "lower-roman", "lowercase", "ltr", "malayalam", "match", "matrix", "matrix3d", "media-controls-background", "media-current-time-display", "media-fullscreen-button", "media-mute-button", "media-play-button", "media-return-to-realtime-button", "media-rewind-button", "media-seek-back-button", "media-seek-forward-button", "media-slider", "media-sliderthumb", "media-time-remaining-display", "media-volume-slider", "media-volume-slider-container", "media-volume-sliderthumb", "medium", "menu", "menulist", "menulist-button", "menulist-text", "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic", "mix", "mongolian", "monospace", "move", "multiple", "myanmar", "n-resize", "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop", "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap", "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "open-quote", "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset", "outside", "outside-shape", "overlay", "overline", "padding", "padding-box", "painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter", "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d", "progress", "push-button", "radial-gradient", "radio", "read-only", "read-write", "read-write-plaintext-only", "rectangle", "region", "relative", "repeat", "repeating-linear-gradient", "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse", "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY", "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running", "s-resize", "sans-serif", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "scroll", "scrollbar", "se-resize", "searchfield", "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button", "searchfield-results-decoration", "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama", "simp-chinese-formal", "simp-chinese-informal", "single", "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal", "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow", "small", "small-caps", "small-caption", "smaller", "solid", "somali", "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "spell-out", "square", "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub", "subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "table", "table-caption", "table-cell", "table-column", "table-column-group", "table-footer-group", "table-header-group", "table-row", "table-row-group", "tamil", "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai", "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight", "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er", "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top", "trad-chinese-formal", "trad-chinese-informal", "translate", "translate3d", "translateX", "translateY", "translateZ", "transparent", "ultra-condensed", "ultra-expanded", "underline", "up", "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal", "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url", "var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted", "visibleStroke", "visual", "w-resize", "wait", "wave", "wider", "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor", "xx-large", "xx-small"],
-        v = b(u),
-        w = c.concat(e)
-        .concat(g)
-        .concat(i)
-        .concat(k)
-        .concat(m)
-        .concat(s)
-        .concat(u);
-    a.registerHelper("hintWords", "css", w), a.defineMIME("text/css", {
-        documentTypes: d,
-        mediaTypes: f,
-        mediaFeatures: h,
-        mediaValueKeywords: j,
-        propertyKeywords: l,
-        nonStandardPropertyKeywords: n,
-        fontProperties: p,
-        counterDescriptors: r,
-        colorKeywords: t,
-        valueKeywords: v,
-        tokenHooks: {
-            "/": function (a, b) {
-                return a.eat("*") ? (b.tokenize = x, x(a, b)) : !1
-            }
-        },
-        name: "css"
-    }), a.defineMIME("text/x-scss", {
-        mediaTypes: f,
-        mediaFeatures: h,
-        mediaValueKeywords: j,
-        propertyKeywords: l,
-        nonStandardPropertyKeywords: n,
-        colorKeywords: t,
-        valueKeywords: v,
-        fontProperties: p,
-        allowNested: !0,
-        tokenHooks: {
-            "/": function (a, b) {
-                return a.eat("/") ? (a.skipToEnd(), ["comment", "comment"]) : a.eat("*") ? (b.tokenize = x, x(a, b)) : ["operator", "operator"]
-            },
-            ":": function (a) {
-                return a.match(/\s*\{/) ? [null, "{"] : !1
-            },
-            $: function (a) {
-                return a.match(/^[\w-]+/), a.match(/^\s*:/, !1) ? ["variable-2", "variable-definition"] : ["variable-2", "variable"]
-            },
-            "#": function (a) {
-                return a.eat("{") ? [null, "interpolation"] : !1
-            }
-        },
-        name: "css",
-        helperType: "scss"
-    }), a.defineMIME("text/x-less", {
-        mediaTypes: f,
-        mediaFeatures: h,
-        mediaValueKeywords: j,
-        propertyKeywords: l,
-        nonStandardPropertyKeywords: n,
-        colorKeywords: t,
-        valueKeywords: v,
-        fontProperties: p,
-        allowNested: !0,
-        tokenHooks: {
-            "/": function (a, b) {
-                return a.eat("/") ? (a.skipToEnd(), ["comment", "comment"]) : a.eat("*") ? (b.tokenize = x, x(a, b)) : ["operator", "operator"]
-            },
-            "@": function (a) {
-                return a.eat("{") ? [null, "interpolation"] : a.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/, !1) ? !1 : (a.eatWhile(/[\w\\\-]/), a.match(/^\s*:/, !1) ? ["variable-2", "variable-definition"] : ["variable-2", "variable"])
-            },
-            "&": function () {
-                return ["atom", "atom"]
-            }
-        },
-        name: "css",
-        helperType: "less"
-    }), a.defineMIME("text/x-gss", {
-        documentTypes: d,
-        mediaTypes: f,
-        mediaFeatures: h,
-        propertyKeywords: l,
-        nonStandardPropertyKeywords: n,
-        fontProperties: p,
-        counterDescriptors: r,
-        colorKeywords: t,
-        valueKeywords: v,
-        supportsAtComponent: !0,
-        tokenHooks: {
-            "/": function (a, b) {
-                return a.eat("*") ? (b.tokenize = x, x(a, b)) : !1
-            }
-        },
-        name: "css",
-        helperType: "gss"
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function c(a, b, c) {
-        var d = a.current(),
-            e = d.search(b);
-        return e > -1 ? a.backUp(d.length - e) : d.match(/<\/?$/) && (a.backUp(d.length), a.match(b, !1) || a.match(d)), c
-    }
-
-    function e(a) {
-        var b = d[a];
-        return b ? b : d[a] = new RegExp("\\s+" + a + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*")
-    }
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-    function f(a, b) {
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-            return j = "error", x
-        }
-
-        function y(a, b, c) {
-            return "equals" == a ? z : (g.allowMissing || (j = "error"), x(a, b, c))
-        }
-
-        function z(a, b, c) {
-            return "string" == a ? A : "word" == a && g.allowUnquoted ? (j = "string", x) : (j = "error", x(a, b, c))
-        }
-
-        function A(a, b, c) {
-            return "string" == a ? A : x(a, b, c)
-        }
-        var d = b.indentUnit,
-            e = c.multilineTagIndentFactor || 1,
-            f = c.multilineTagIndentPastTag;
-        null == f && (f = !0);
-        var i, j, g = c.htmlMode ? {
-                autoSelfClosers: {
-                    area: !0,
-                    base: !0,
-                    br: !0,
-                    col: !0,
-                    command: !0,
-                    embed: !0,
-                    frame: !0,
-                    hr: !0,
-                    img: !0,
-                    input: !0,
-                    keygen: !0,
-                    link: !0,
-                    meta: !0,
-                    param: !0,
-                    source: !0,
-                    track: !0,
-                    wbr: !0,
-                    menuitem: !0
-                },
-                implicitlyClosed: {
-                    dd: !0,
-                    li: !0,
-                    optgroup: !0,
-                    option: !0,
-                    p: !0,
-                    rp: !0,
-                    rt: !0,
-                    tbody: !0,
-                    td: !0,
-                    tfoot: !0,
-                    th: !0,
-                    tr: !0
-                },
-                contextGrabbers: {
-                    dd: {
-                        dd: !0,
-                        dt: !0
-                    },
-                    dt: {
-                        dd: !0,
-                        dt: !0
-                    },
-                    li: {
-                        li: !0
-                    },
-                    option: {
-                        option: !0,
-                        optgroup: !0
-                    },
-                    optgroup: {
-                        optgroup: !0
-                    },
-                    p: {
-                        address: !0,
-                        article: !0,
-                        aside: !0,
-                        blockquote: !0,
-                        dir: !0,
-                        div: !0,
-                        dl: !0,
-                        fieldset: !0,
-                        footer: !0,
-                        form: !0,
-                        h1: !0,
-                        h2: !0,
-                        h3: !0,
-                        h4: !0,
-                        h5: !0,
-                        h6: !0,
-                        header: !0,
-                        hgroup: !0,
-                        hr: !0,
-                        menu: !0,
-                        nav: !0,
-                        ol: !0,
-                        p: !0,
-                        pre: !0,
-                        section: !0,
-                        table: !0,
-                        ul: !0
-                    },
-                    rp: {
-                        rp: !0,
-                        rt: !0
-                    },
-                    rt: {
-                        rp: !0,
-                        rt: !0
-                    },
-                    tbody: {
-                        tbody: !0,
-                        tfoot: !0
-                    },
-                    td: {
-                        td: !0,
-                        th: !0
-                    },
-                    tfoot: {
-                        tbody: !0
-                    },
-                    th: {
-                        td: !0,
-                        th: !0
-                    },
-                    thead: {
-                        tbody: !0,
-                        tfoot: !0
-                    },
-                    tr: {
-                        tr: !0
-                    }
-                },
-                doNotIndent: {
-                    pre: !0
-                },
-                allowUnquoted: !0,
-                allowMissing: !0,
-                caseFold: !0
-            } : {
-                autoSelfClosers: {},
-                implicitlyClosed: {},
-                contextGrabbers: {},
-                doNotIndent: {},
-                allowUnquoted: !1,
-                allowMissing: !1,
-                caseFold: !1
-            },
-            h = c.alignCDATA;
-        return k.isInText = !0, {
-            startState: function () {
-                return {
-                    tokenize: k,
-                    state: s,
-                    indented: 0,
-                    tagName: null,
-                    tagStart: null,
-                    context: null
-                }
-            },
-            token: function (a, b) {
-                if (!b.tagName && a.sol() && (b.indented = a.indentation()), a.eatSpace()) return null;
-                i = null;
-                var c = b.tokenize(a, b);
-                return (c || i) && "comment" != c && (j = null, b.state = b.state(i || c, a, b), j && (c = "error" == j ? c + " error" : j)), c
-            },
-            indent: function (b, c, i) {
-                var j = b.context;
-                if (b.tokenize.isInAttribute) return b.tagStart == b.indented ? b.stringStartCol + 1 : b.indented + d;
-                if (j && j.noIndent) return a.Pass;
-                if (b.tokenize != l && b.tokenize != k) return i ? i.match(/^(\s*)/)[0].length : 0;
-                if (b.tagName) return f ? b.tagStart + b.tagName.length + 2 : b.tagStart + d * e;
-                if (h && /<!\[CDATA\[/.test(c)) return 0;
-                var m = c && /^<(\/)?([\w_:\.-]*)/.exec(c);
-                if (m && m[1])
-                    for (; j;) {
-                        if (j.tagName == m[2]) {
-                            j = j.prev;
-                            break
-                        }
-                        if (!g.implicitlyClosed.hasOwnProperty(j.tagName)) break;
-                        j = j.prev
-                    } else if (m)
-                        for (; j;) {
-                            var n = g.contextGrabbers[j.tagName];
-                            if (!n || !n.hasOwnProperty(m[2])) break;
-                            j = j.prev
-                        }
-                    for (; j && !j.startOfLine;) j = j.prev;
-                return j ? j.indent + d : 0
-            },
-            electricInput: /<\/[\s\w:]+>$/,
-            blockCommentStart: "<!--",
-            blockCommentEnd: "-->",
-            configuration: c.htmlMode ? "html" : "xml",
-            helperType: c.htmlMode ? "html" : "xml"
-        }
-    }), a.defineMIME("text/xml", "xml"), a.defineMIME("application/xml", "xml"), a.mimeModes.hasOwnProperty("text/html") || a.defineMIME("text/html", {
-        name: "xml",
-        htmlMode: !0
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function d(a) {
-        for (var d = 0; d < a.state.activeLines.length; d++) a.removeLineClass(a.state.activeLines[d], "wrap", b), a.removeLineClass(a.state.activeLines[d], "background", c)
-    }
-
-    function e(a, b) {
-        if (a.length != b.length) return !1;
-        for (var c = 0; c < a.length; c++)
-            if (a[c] != b[c]) return !1;
-        return !0
-    }
-
-    function f(a, f) {
-        for (var g = [], h = 0; h < f.length; h++) {
-            var i = f[h];
-            if (i.empty()) {
-                var j = a.getLineHandleVisualStart(i.head.line);
-                g[g.length - 1] != j && g.push(j)
-            }
-        }
-        e(a.state.activeLines, g) || a.operation(function () {
-            d(a);
-            for (var e = 0; e < g.length; e++) a.addLineClass(g[e], "wrap", b), a.addLineClass(g[e], "background", c);
-            a.state.activeLines = g
-        })
-    }
-
-    function g(a, b) {
-        f(a, b.ranges)
-    }
-    var b = "CodeMirror-activeline",
-        c = "CodeMirror-activeline-background";
-    a.defineOption("styleActiveLine", !1, function (b, c, e) {
-        var h = e && e != a.Init;
-        c && !h ? (b.state.activeLines = [], f(b, b.listSelections()), b.on("beforeSelectionChange", g)) : !c && h && (b.off("beforeSelectionChange", g), d(b), delete b.state.activeLines)
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-    a.registerHelper("fold", "brace", function (b, c) {
-        function h(f) {
-            for (var h = c.ch, i = 0;;) {
-                var j = 0 >= h ? -1 : e.lastIndexOf(f, h - 1);
-                if (-1 != j) {
-                    if (1 == i && j < c.ch) break;
-                    if (g = b.getTokenTypeAt(a.Pos(d, j + 1)), !/^(comment|string)/.test(g)) return j + 1;
-                    h = j - 1
-                } else {
-                    if (1 == i) break;
-                    i = 1, h = e.length
-                }
-            }
-        }
-        var f, g, d = c.line,
-            e = b.getLine(d),
-            i = "{",
-            j = "}",
-            f = h("{");
-        if (null == f && (i = "[", j = "]", f = h("[")), null != f) {
-            var m, n, k = 1,
-                l = b.lastLine();
-            a: for (var o = d; l >= o; ++o)
-                for (var p = b.getLine(o), q = o == d ? f : 0;;) {
-                    var r = p.indexOf(i, q),
-                        s = p.indexOf(j, q);
-                    if (0 > r && (r = p.length), 0 > s && (s = p.length), q = Math.min(r, s), q == p.length) break;
-                    if (b.getTokenTypeAt(a.Pos(o, q + 1)) == g)
-                        if (q == r) ++k;
-                        else if (!--k) {
-                        m = o, n = q;
-                        break a
-                    }++q
-                }
-            if (null != m && (d != m || n != f)) return {
-                from: a.Pos(d, f),
-                to: a.Pos(m, n)
-            }
-        }
-    }), a.registerHelper("fold", "import", function (b, c) {
-        function d(c) {
-            if (c < b.firstLine() || c > b.lastLine()) return null;
-            var d = b.getTokenAt(a.Pos(c, 1));
-            if (/\S/.test(d.string) || (d = b.getTokenAt(a.Pos(c, d.end + 1))), "keyword" != d.type || "import" != d.string) return null;
-            for (var e = c, f = Math.min(b.lastLine(), c + 10); f >= e; ++e) {
-                var g = b.getLine(e),
-                    h = g.indexOf(";");
-                if (-1 != h) return {
-                    startCh: d.end,
-                    end: a.Pos(e, h)
-                }
-            }
-        }
-        var f, c = c.line,
-            e = d(c);
-        if (!e || d(c - 1) || (f = d(c - 2)) && f.end.line == c - 1) return null;
-        for (var g = e.end;;) {
-            var h = d(g.line + 1);
-            if (null == h) break;
-            g = h.end
-        }
-        return {
-            from: b.clipPos(a.Pos(c, e.startCh + 1)),
-            to: g
-        }
-    }), a.registerHelper("fold", "include", function (b, c) {
-        function d(c) {
-            if (c < b.firstLine() || c > b.lastLine()) return null;
-            var d = b.getTokenAt(a.Pos(c, 1));
-            return /\S/.test(d.string) || (d = b.getTokenAt(a.Pos(c, d.end + 1))), "meta" == d.type && "#include" == d.string.slice(0, 8) ? d.start + 8 : void 0
-        }
-        var c = c.line,
-            e = d(c);
-        if (null == e || null != d(c - 1)) return null;
-        for (var f = c;;) {
-            var g = d(f + 1);
-            if (null == g) break;
-            ++f
-        }
-        return {
-            from: a.Pos(c, e + 1),
-            to: b.clipPos(a.Pos(f))
-        }
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    function d(a, c) {
-        return "pairs" == c && "string" == typeof a ? a : "object" == typeof a && null != a[c] ? a[c] : b[c]
-    }
-
-    function h(a) {
-        return function (b) {
-            return l(b, a)
-        }
-    }
-
-    function i(a) {
-        var b = a.state.closeBrackets;
-        if (!b) return null;
-        var c = a.getModeAt(a.getCursor());
-        return c.closeBrackets || b
-    }
-
-    function j(b) {
-        var e = i(b);
-        if (!e || b.getOption("disableInput")) return a.Pass;
-        for (var f = d(e, "pairs"), g = b.listSelections(), h = 0; h < g.length; h++) {
-            if (!g[h].empty()) return a.Pass;
-            var j = n(b, g[h].head);
-            if (!j || f.indexOf(j) % 2 != 0) return a.Pass
-        }
-        for (var h = g.length - 1; h >= 0; h--) {
-            var k = g[h].head;
-            b.replaceRange("", c(k.line, k.ch - 1), c(k.line, k.ch + 1))
-        }
-    }
-
-    function k(b) {
-        var c = i(b),
-            e = c && d(c, "explode");
-        if (!e || b.getOption("disableInput")) return a.Pass;
-        for (var f = b.listSelections(), g = 0; g < f.length; g++) {
-            if (!f[g].empty()) return a.Pass;
-            var h = n(b, f[g].head);
-            if (!h || e.indexOf(h) % 2 != 0) return a.Pass
-        }
-        b.operation(function () {
-            b.replaceSelection("\n\n", null), b.execCommand("goCharLeft"), f = b.listSelections();
-            for (var a = 0; a < f.length; a++) {
-                var c = f[a].head.line;
-                b.indentLine(c, null, !0), b.indentLine(c + 1, null, !0)
-            }
-        })
-    }
-
-    function l(b, e) {
-        var f = i(b);
-        if (!f || b.getOption("disableInput")) return a.Pass;
-        var g = d(f, "pairs"),
-            h = g.indexOf(e);
-        if (-1 == h) return a.Pass;
-        for (var p, q, j = d(f, "triples"), k = g.charAt(h + 1) == e, l = b.listSelections(), n = h % 2 == 0, r = 0; r < l.length; r++) {
-            var u, s = l[r],
-                t = s.head,
-                q = b.getRange(t, c(t.line, t.ch + 1));
-            if (n && !s.empty()) u = "surround";
-            else if (!k && n || q != e)
-                if (k && t.ch > 1 && j.indexOf(e) >= 0 && b.getRange(c(t.line, t.ch - 2), t) == e + e && (t.ch <= 2 || b.getRange(c(t.line, t.ch - 3), c(t.line, t.ch - 2)) != e)) u = "addFour";
-                else if (k) {
-                if (a.isWordChar(q) || !o(b, t, e)) return a.Pass;
-                u = "both"
-            } else {
-                if (!n || b.getLine(t.line)
-                    .length != t.ch && !m(q, g) && !/\s/.test(q)) return a.Pass;
-                u = "both"
-            } else u = j.indexOf(e) >= 0 && b.getRange(t, c(t.line, t.ch + 3)) == e + e + e ? "skipThree" : "skip";
-            if (p) {
-                if (p != u) return a.Pass
-            } else p = u
-        }
-        var v = h % 2 ? g.charAt(h - 1) : e,
-            w = h % 2 ? e : g.charAt(h + 1);
-        b.operation(function () {
-            if ("skip" == p) b.execCommand("goCharRight");
-            else if ("skipThree" == p)
-                for (var a = 0; 3 > a; a++) b.execCommand("goCharRight");
-            else if ("surround" == p) {
-                for (var c = b.getSelections(), a = 0; a < c.length; a++) c[a] = v + c[a] + w;
-                b.replaceSelections(c, "around")
-            } else "both" == p ? (b.replaceSelection(v + w, null), b.triggerElectric(v + w), b.execCommand("goCharLeft")) : "addFour" == p && (b.replaceSelection(v + v + v + v, "before"), b.execCommand("goCharRight"))
-        })
-    }
-
-    function m(a, b) {
-        var c = b.lastIndexOf(a);
-        return c > -1 && c % 2 == 1
-    }
-
-    function n(a, b) {
-        var d = a.getRange(c(b.line, b.ch - 1), c(b.line, b.ch + 1));
-        return 2 == d.length ? d : null
-    }
-
-    function o(b, c, d) {
-        var e = b.getLine(c.line),
-            f = b.getTokenAt(c);
-        if (/\bstring2?\b/.test(f.type)) return !1;
-        var g = new a.StringStream(e.slice(0, c.ch) + d + e.slice(c.ch), 4);
-        for (g.pos = g.start = f.start;;) {
-            var h = b.getMode()
-                .token(g, f.state);
-            if (g.pos >= c.ch + 1) return /\bstring2?\b/.test(h);
-            g.start = g.pos
-        }
-    }
-    var b = {
-            pairs: "()[]{}''\"\"",
-            triples: "",
-            explode: "[]{}"
-        },
-        c = a.Pos;
-    a.defineOption("autoCloseBrackets", !1, function (b, c, d) {
-        d && d != a.Init && (b.removeKeyMap(f), b.state.closeBrackets = null), c && (b.state.closeBrackets = c, b.addKeyMap(f))
-    });
-    for (var e = b.pairs + "`", f = {
-            Backspace: j,
-            Enter: k
-        }, g = 0; g < e.length; g++) f["'" + e.charAt(g) + "'"] = h(e.charAt(g))
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror"), require("../fold/xml-fold")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror", "../fold/xml-fold"], a) : a(CodeMirror)
-}(function (a) {
-    function d(d) {
-        if (d.getOption("disableInput")) return a.Pass;
-        for (var e = d.listSelections(), f = [], i = 0; i < e.length; i++) {
-            if (!e[i].empty()) return a.Pass;
-            var j = e[i].head,
-                k = d.getTokenAt(j),
-                l = a.innerMode(d.getMode(), k.state),
-                m = l.state;
-            if ("xml" != l.mode.name || !m.tagName) return a.Pass;
-            var n = d.getOption("autoCloseTags"),
-                o = "html" == l.mode.configuration,
-                p = "object" == typeof n && n.dontCloseTags || o && b,
-                q = "object" == typeof n && n.indentTags || o && c,
-                r = m.tagName;
-            k.end > j.ch && (r = r.slice(0, r.length - k.end + j.ch));
-            var s = r.toLowerCase();
-            if (!r || "string" == k.type && (k.end != j.ch || !/[\"\']/.test(k.string.charAt(k.string.length - 1)) || 1 == k.string.length) || "tag" == k.type && "closeTag" == m.type || k.string.indexOf("/") == k.string.length - 1 || p && g(p, s) > -1 || h(d, r, j, m, !0)) return a.Pass;
-            var t = q && g(q, s) > -1;
-            f[i] = {
-                indent: t,
-                text: ">" + (t ? "\n\n" : "") + "</" + r + ">",
-                newPos: t ? a.Pos(j.line + 1, 0) : a.Pos(j.line, j.ch + 1)
-            }
-        }
-        for (var i = e.length - 1; i >= 0; i--) {
-            var u = f[i];
-            d.replaceRange(u.text, e[i].head, e[i].anchor, "+insert");
-            var v = d.listSelections()
-                .slice(0);
-            v[i] = {
-                head: u.newPos,
-                anchor: u.newPos
-            }, d.setSelections(v), u.indent && (d.indentLine(u.newPos.line, null, !0), d.indentLine(u.newPos.line + 1, null, !0))
-        }
-    }
-
-    function e(b, c) {
-        for (var d = b.listSelections(), e = [], f = c ? "/" : "</", g = 0; g < d.length; g++) {
-            if (!d[g].empty()) return a.Pass;
-            var i = d[g].head,
-                j = b.getTokenAt(i),
-                k = a.innerMode(b.getMode(), j.state),
-                l = k.state;
-            if (c && ("string" == j.type || "<" != j.string.charAt(0) || j.start != i.ch - 1)) return a.Pass;
-            var m;
-            if ("xml" != k.mode.name)
-                if ("htmlmixed" == b.getMode()
-                    .name && "javascript" == k.mode.name) m = f + "script";
-                else {
-                    if ("htmlmixed" != b.getMode()
-                        .name || "css" != k.mode.name) return a.Pass;
-                    m = f + "style"
-                } else {
-                if (!l.context || !l.context.tagName || h(b, l.context.tagName, i, l)) return a.Pass;
-                m = f + l.context.tagName;
-            }
-            ">" != b.getLine(i.line)
-                .charAt(j.end) && (m += ">"), e[g] = m
-        }
-        b.replaceSelections(e), d = b.listSelections();
-        for (var g = 0; g < d.length; g++)(g == d.length - 1 || d[g].head.line < d[g + 1].head.line) && b.indentLine(d[g].head.line)
-    }
-
-    function f(b) {
-        return b.getOption("disableInput") ? a.Pass : e(b, !0)
-    }
-
-    function g(a, b) {
-        if (a.indexOf) return a.indexOf(b);
-        for (var c = 0, d = a.length; d > c; ++c)
-            if (a[c] == b) return c;
-        return -1
-    }
-
-    function h(b, c, d, e, f) {
-        if (!a.scanForClosingTag) return !1;
-        var g = Math.min(b.lastLine() + 1, d.line + 500),
-            h = a.scanForClosingTag(b, d, null, g);
-        if (!h || h.tag != c) return !1;
-        for (var i = e.context, j = f ? 1 : 0; i && i.tagName == c; i = i.prev) ++j;
-        d = h.to;
-        for (var k = 1; j > k; k++) {
-            var l = a.scanForClosingTag(b, d, null, g);
-            if (!l || l.tag != c) return !1;
-            d = l.to
-        }
-        return !0
-    }
-    a.defineOption("autoCloseTags", !1, function (b, c, e) {
-        if (e != a.Init && e && b.removeKeyMap("autoCloseTags"), c) {
-            var g = {
-                name: "autoCloseTags"
-            };
-            ("object" != typeof c || c.whenClosing) && (g["'/'"] = function (a) {
-                return f(a)
-            }), ("object" != typeof c || c.whenOpening) && (g["'>'"] = function (a) {
-                return d(a)
-            }), b.addKeyMap(g)
-        }
-    });
-    var b = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param", "source", "track", "wbr"],
-        c = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4", "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];
-    a.commands.closeTag = function (a) {
-        return e(a)
-    }
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function b(b, d, f, g) {
-        function j(a) {
-            var c = h(b, d);
-            if (!c || c.to.line - c.from.line < i) return null;
-            for (var e = b.findMarksAt(c.from), f = 0; f < e.length; ++f)
-                if (e[f].__isFold && "fold" !== g) {
-                    if (!a) return null;
-                    c.cleared = !0, e[f].clear()
-                }
-            return c
-        }
-        if (f && f.call) {
-            var h = f;
-            f = null
-        } else var h = e(b, f, "rangeFinder");
-        "number" == typeof d && (d = a.Pos(d, 0));
-        var i = e(b, f, "minFoldSize"),
-            k = j(!0);
-        if (e(b, f, "scanUp"))
-            for (; !k && d.line > b.firstLine();) d = a.Pos(d.line - 1, 0), k = j(!1);
-        if (k && !k.cleared && "unfold" !== g) {
-            var l = c(b, f);
-            a.on(l, "mousedown", function (b) {
-                m.clear(), a.e_preventDefault(b)
-            });
-            var m = b.markText(k.from, k.to, {
-                replacedWith: l,
-                clearOnEnter: !0,
-                __isFold: !0
-            });
-            m.on("clear", function (c, d) {
-                a.signal(b, "unfold", b, c, d)
-            }), a.signal(b, "fold", b, k.from, k.to)
-        }
-    }
-
-    function c(a, b) {
-        var c = e(a, b, "widget");
-        if ("string" == typeof c) {
-            var d = document.createTextNode(c);
-            c = document.createElement("span"), c.appendChild(d), c.className = "CodeMirror-foldmarker"
-        }
-        return c
-    }
-
-    function e(a, b, c) {
-        if (b && void 0 !== b[c]) return b[c];
-        var e = a.options.foldOptions;
-        return e && void 0 !== e[c] ? e[c] : d[c]
-    }
-    a.newFoldFunction = function (a, c) {
-        return function (d, e) {
-            b(d, e, {
-                rangeFinder: a,
-                widget: c
-            })
-        }
-    }, a.defineExtension("foldCode", function (a, c, d) {
-        b(this, a, c, d)
-    }), a.defineExtension("isFolded", function (a) {
-        for (var b = this.findMarksAt(a), c = 0; c < b.length; ++c)
-            if (b[c].__isFold) return !0
-    }), a.commands.toggleFold = function (a) {
-        a.foldCode(a.getCursor())
-    }, a.commands.fold = function (a) {
-        a.foldCode(a.getCursor(), null, "fold")
-    }, a.commands.unfold = function (a) {
-        a.foldCode(a.getCursor(), null, "unfold")
-    }, a.commands.foldAll = function (b) {
-        b.operation(function () {
-            for (var c = b.firstLine(), d = b.lastLine(); d >= c; c++) b.foldCode(a.Pos(c, 0), null, "fold")
-        })
-    }, a.commands.unfoldAll = function (b) {
-        b.operation(function () {
-            for (var c = b.firstLine(), d = b.lastLine(); d >= c; c++) b.foldCode(a.Pos(c, 0), null, "unfold")
-        })
-    }, a.registerHelper("fold", "combine", function () {
-        var a = Array.prototype.slice.call(arguments, 0);
-        return function (b, c) {
-            for (var d = 0; d < a.length; ++d) {
-                var e = a[d](b, c);
-                if (e) return e
-            }
-        }
-    }), a.registerHelper("fold", "auto", function (a, b) {
-        for (var c = a.getHelpers(b, "fold"), d = 0; d < c.length; d++) {
-            var e = c[d](a, b);
-            if (e) return e
-        }
-    });
-    var d = {
-        rangeFinder: a.fold.auto,
-        widget: "\u2194",
-        minFoldSize: 0,
-        scanUp: !1
-    };
-    a.defineOption("foldOptions", null), a.defineExtension("foldOption", function (a, b) {
-        return e(this, a, b)
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror"), require("./foldcode")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror", "./foldcode"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function c(a) {
-        this.options = a, this.from = this.to = 0
-    }
-
-    function d(a) {
-        return a === !0 && (a = {}), null == a.gutter && (a.gutter = "CodeMirror-foldgutter"), null == a.indicatorOpen && (a.indicatorOpen = "CodeMirror-foldgutter-open"), null == a.indicatorFolded && (a.indicatorFolded = "CodeMirror-foldgutter-folded"), a
-    }
-
-    function e(a, c) {
-        for (var d = a.findMarksAt(b(c)), e = 0; e < d.length; ++e)
-            if (d[e].__isFold && d[e].find()
-                .from.line == c) return d[e]
-    }
-
-    function f(a) {
-        if ("string" == typeof a) {
-            var b = document.createElement("div");
-            return b.className = a + " CodeMirror-guttermarker-subtle", b
-        }
-        return a.cloneNode(!0)
-    }
-
-    function g(a, c, d) {
-        var g = a.state.foldGutter.options,
-            h = c,
-            i = a.foldOption(g, "minFoldSize"),
-            j = a.foldOption(g, "rangeFinder");
-        a.eachLine(c, d, function (c) {
-            var d = null;
-            if (e(a, h)) d = f(g.indicatorFolded);
-            else {
-                var k = b(h, 0),
-                    l = j && j(a, k);
-                l && l.to.line - l.from.line >= i && (d = f(g.indicatorOpen))
-            }
-            a.setGutterMarker(c, g.gutter, d), ++h
-        })
-    }
-
-    function h(a) {
-        var b = a.getViewport(),
-            c = a.state.foldGutter;
-        c && (a.operation(function () {
-            g(a, b.from, b.to)
-        }), c.from = b.from, c.to = b.to)
-    }
-
-    function i(a, c, d) {
-        var f = a.state.foldGutter;
-        if (f) {
-            var g = f.options;
-            if (d == g.gutter) {
-                var h = e(a, c);
-                h ? h.clear() : a.foldCode(b(c, 0), g.rangeFinder)
-            }
-        }
-    }
-
-    function j(a) {
-        var b = a.state.foldGutter;
-        if (b) {
-            var c = b.options;
-            b.from = b.to = 0, clearTimeout(b.changeUpdate), b.changeUpdate = setTimeout(function () {
-                h(a)
-            }, c.foldOnChangeTimeSpan || 600)
-        }
-    }
-
-    function k(a) {
-        var b = a.state.foldGutter;
-        if (b) {
-            var c = b.options;
-            clearTimeout(b.changeUpdate), b.changeUpdate = setTimeout(function () {
-                var c = a.getViewport();
-                b.from == b.to || c.from - b.to > 20 || b.from - c.to > 20 ? h(a) : a.operation(function () {
-                    c.from < b.from && (g(a, c.from, b.from), b.from = c.from), c.to > b.to && (g(a, b.to, c.to), b.to = c.to)
-                })
-            }, c.updateViewportTimeSpan || 400)
-        }
-    }
-
-    function l(a, b) {
-        var c = a.state.foldGutter;
-        if (c) {
-            var d = b.line;
-            d >= c.from && d < c.to && g(a, d, d + 1)
-        }
-    }
-    a.defineOption("foldGutter", !1, function (b, e, f) {
-        f && f != a.Init && (b.clearGutter(b.state.foldGutter.options.gutter), b.state.foldGutter = null, b.off("gutterClick", i), b.off("change", j), b.off("viewportChange", k), b.off("fold", l), b.off("unfold", l), b.off("swapDoc", h)), e && (b.state.foldGutter = new c(d(e)), h(b), b.on("gutterClick", i), b.on("change", j), b.on("viewportChange", k), b.on("fold", l), b.on("unfold", l), b.on("swapDoc", h))
-    });
-    var b = a.Pos
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-    a.registerHelper("fold", "indent", function (b, c) {
-        var d = b.getOption("tabSize"),
-            e = b.getLine(c.line);
-        if (/\S/.test(e)) {
-            for (var f = function (b) {
-                    return a.countColumn(b, null, d)
-                }, g = f(e), h = null, i = c.line + 1, j = b.lastLine(); j >= i; ++i) {
-                var k = b.getLine(i),
-                    l = f(k);
-                if (l > g) h = i;
-                else if (/\S/.test(k)) break
-            }
-            return h ? {
-                from: a.Pos(c.line, e.length),
-                to: a.Pos(h, b.getLine(h)
-                    .length)
-            } : void 0
-        }
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function f(a) {
-        "object" == typeof a && (this.minChars = a.minChars, this.style = a.style, this.showToken = a.showToken, this.delay = a.delay, this.wordsOnly = a.wordsOnly), null == this.style && (this.style = c), null == this.minChars && (this.minChars = b), null == this.delay && (this.delay = d), null == this.wordsOnly && (this.wordsOnly = e), this.overlay = this.timeout = null
-    }
-
-    function g(a) {
-        var b = a.state.matchHighlighter;
-        clearTimeout(b.timeout), b.timeout = setTimeout(function () {
-            h(a)
-        }, b.delay)
-    }
-
-    function h(a) {
-        a.operation(function () {
-            var b = a.state.matchHighlighter;
-            if (b.overlay && (a.removeOverlay(b.overlay), b.overlay = null), !a.somethingSelected() && b.showToken) {
-                for (var c = b.showToken === !0 ? /[\w$]/ : b.showToken, d = a.getCursor(), e = a.getLine(d.line), f = d.ch, g = f; f && c.test(e.charAt(f - 1));) --f;
-                for (; g < e.length && c.test(e.charAt(g));) ++g;
-                return void(g > f && a.addOverlay(b.overlay = k(e.slice(f, g), c, b.style)))
-            }
-            var h = a.getCursor("from"),
-                j = a.getCursor("to");
-            if (h.line == j.line && (!b.wordsOnly || i(a, h, j))) {
-                var l = a.getRange(h, j)
-                    .replace(/^\s+|\s+$/g, "");
-                l.length >= b.minChars && a.addOverlay(b.overlay = k(l, !1, b.style))
-            }
-        })
-    }
-
-    function i(a, b, c) {
-        var d = a.getRange(b, c);
-        if (null !== d.match(/^\w+$/)) {
-            if (b.ch > 0) {
-                var e = {
-                        line: b.line,
-                        ch: b.ch - 1
-                    },
-                    f = a.getRange(e, b);
-                if (null === f.match(/\W/)) return !1
-            }
-            if (c.ch < a.getLine(b.line)
-                .length) {
-                var e = {
-                        line: c.line,
-                        ch: c.ch + 1
-                    },
-                    f = a.getRange(c, e);
-                if (null === f.match(/\W/)) return !1
-            }
-            return !0
-        }
-        return !1
-    }
-
-    function j(a, b) {
-        return !(a.start && b.test(a.string.charAt(a.start - 1)) || a.pos != a.string.length && b.test(a.string.charAt(a.pos)))
-    }
-
-    function k(a, b, c) {
-        return {
-            token: function (d) {
-                return !d.match(a) || b && !j(d, b) ? (d.next(), void(d.skipTo(a.charAt(0)) || d.skipToEnd())) : c
-            }
-        }
-    }
-    var b = 2,
-        c = "matchhighlight",
-        d = 100,
-        e = !1;
-    a.defineOption("highlightSelectionMatches", !1, function (b, c, d) {
-        if (d && d != a.Init) {
-            var e = b.state.matchHighlighter.overlay;
-            e && b.removeOverlay(e), clearTimeout(b.state.matchHighlighter.timeout), b.state.matchHighlighter = null, b.off("cursorActivity", g)
-        }
-        c && (b.state.matchHighlighter = new f(c), h(b), b.on("cursorActivity", g))
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    function e(a, b, e, g) {
-        var h = a.getLineHandle(b.line),
-            i = b.ch - 1,
-            j = i >= 0 && d[h.text.charAt(i)] || d[h.text.charAt(++i)];
-        if (!j) return null;
-        var k = ">" == j.charAt(1) ? 1 : -1;
-        if (e && k > 0 != (i == b.ch)) return null;
-        var l = a.getTokenTypeAt(c(b.line, i + 1)),
-            m = f(a, c(b.line, i + (k > 0 ? 1 : 0)), k, l || null, g);
-        return null == m ? null : {
-            from: c(b.line, i),
-            to: m && m.pos,
-            match: m && m.ch == j.charAt(0),
-            forward: k > 0
-        }
-    }
-
-    function f(a, b, e, f, g) {
-        for (var h = g && g.maxScanLineLength || 1e4, i = g && g.maxScanLines || 1e3, j = [], k = g && g.bracketRegex ? g.bracketRegex : /[(){}[\]]/, l = e > 0 ? Math.min(b.line + i, a.lastLine() + 1) : Math.max(a.firstLine() - 1, b.line - i), m = b.line; m != l; m += e) {
-            var n = a.getLine(m);
-            if (n) {
-                var o = e > 0 ? 0 : n.length - 1,
-                    p = e > 0 ? n.length : -1;
-                if (!(n.length > h))
-                    for (m == b.line && (o = b.ch - (0 > e ? 1 : 0)); o != p; o += e) {
-                        var q = n.charAt(o);
-                        if (k.test(q) && (void 0 === f || a.getTokenTypeAt(c(m, o + 1)) == f)) {
-                            var r = d[q];
-                            if (">" == r.charAt(1) == e > 0) j.push(q);
-                            else {
-                                if (!j.length) return {
-                                    pos: c(m, o),
-                                    ch: q
-                                };
-                                j.pop()
-                            }
-                        }
-                    }
-            }
-        }
-        return m - e == (e > 0 ? a.lastLine() : a.firstLine()) ? !1 : null
-    }
-
-    function g(a, d, f) {
-        for (var g = a.state.matchBrackets.maxHighlightLineLength || 1e3, h = [], i = a.listSelections(), j = 0; j < i.length; j++) {
-            var k = i[j].empty() && e(a, i[j].head, !1, f);
-            if (k && a.getLine(k.from.line)
-                .length <= g) {
-                var l = k.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
-                h.push(a.markText(k.from, c(k.from.line, k.from.ch + 1), {
-                        className: l
-                    })), k.to && a.getLine(k.to.line)
-                    .length <= g && h.push(a.markText(k.to, c(k.to.line, k.to.ch + 1), {
-                        className: l
-                    }))
-            }
-        }
-        if (h.length) {
-            b && a.state.focused && a.focus();
-            var m = function () {
-                a.operation(function () {
-                    for (var a = 0; a < h.length; a++) h[a].clear()
-                })
-            };
-            if (!d) return m;
-            setTimeout(m, 800)
-        }
-    }
-
-    function i(a) {
-        a.operation(function () {
-            h && (h(), h = null), h = g(a, !1, a.state.matchBrackets)
-        })
-    }
-    var b = /MSIE \d/.test(navigator.userAgent) && (null == document.documentMode || document.documentMode < 8),
-        c = a.Pos,
-        d = {
-            "(": ")>",
-            ")": "(<",
-            "[": "]>",
-            "]": "[<",
-            "{": "}>",
-            "}": "{<"
-        },
-        h = null;
-    a.defineOption("matchBrackets", !1, function (b, c, d) {
-        d && d != a.Init && b.off("cursorActivity", i), c && (b.state.matchBrackets = "object" == typeof c ? c : {}, b.on("cursorActivity", i))
-    }), a.defineExtension("matchBrackets", function () {
-        g(this, !0)
-    }), a.defineExtension("findMatchingBracket", function (a, b, c) {
-        return e(this, a, b, c)
-    }), a.defineExtension("scanForBracket", function (a, b, c, d) {
-        return f(this, a, b, c, d)
-    })
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror"), require("../fold/xml-fold")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror", "../fold/xml-fold"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function b(a) {
-        a.state.tagHit && a.state.tagHit.clear(), a.state.tagOther && a.state.tagOther.clear(), a.state.tagHit = a.state.tagOther = null
-    }
-
-    function c(c) {
-        c.state.failedTagMatch = !1, c.operation(function () {
-            if (b(c), !c.somethingSelected()) {
-                var d = c.getCursor(),
-                    e = c.getViewport();
-                e.from = Math.min(e.from, d.line), e.to = Math.max(d.line + 1, e.to);
-                var f = a.findMatchingTag(c, d, e);
-                if (f) {
-                    if (c.state.matchBothTags) {
-                        var g = "open" == f.at ? f.open : f.close;
-                        g && (c.state.tagHit = c.markText(g.from, g.to, {
-                            className: "CodeMirror-matchingtag"
-                        }))
-                    }
-                    var h = "close" == f.at ? f.open : f.close;
-                    h ? c.state.tagOther = c.markText(h.from, h.to, {
-                        className: "CodeMirror-matchingtag"
-                    }) : c.state.failedTagMatch = !0
-                }
-            }
-        })
-    }
-
-    function d(a) {
-        a.state.failedTagMatch && c(a)
-    }
-    a.defineOption("matchTags", !1, function (e, f, g) {
-        g && g != a.Init && (e.off("cursorActivity", c), e.off("viewportChange", d), b(e)), f && (e.state.matchBothTags = "object" == typeof f && f.bothTags, e.on("cursorActivity", c), e.on("viewportChange", d), c(e))
-    }), a.commands.toMatchingTag = function (b) {
-        var c = a.findMatchingTag(b, b.getCursor());
-        if (c) {
-            var d = "close" == c.at ? c.open : c.close;
-            d && b.extendSelection(d.to, d.from)
-        }
-    }
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function b(a, b) {
-        return "string" == typeof a ? a = new RegExp(a.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), b ? "gi" : "g") : a.global || (a = new RegExp(a.source, a.ignoreCase ? "gi" : "g")), {
-            token: function (b) {
-                a.lastIndex = b.pos;
-                var c = a.exec(b.string);
-                return c && c.index == b.pos ? (b.pos += c[0].length, "searching") : void(c ? b.pos = c.index : b.skipToEnd())
-            }
-        }
-    }
-
-    function c() {
-        this.posFrom = this.posTo = this.lastQuery = this.query = null, this.overlay = null
-    }
-
-    function d(a) {
-        return a.state.search || (a.state.search = new c)
-    }
-
-    function e(a) {
-        return "string" == typeof a && a == a.toLowerCase()
-    }
-
-    function f(a, b, c) {
-        return a.getSearchCursor(b, c, e(b))
-    }
-
-    function g(a, b, c, d) {
-        a.openDialog(b, d, {
-            value: c,
-            selectValueOnOpen: !0,
-            closeOnEnter: !1,
-            onClose: function () {
-                p(a)
-            }
-        })
-    }
-
-    function h(a, b, c, d, e) {
-        a.openDialog ? a.openDialog(b, e, {
-            value: d,
-            selectValueOnOpen: !0
-        }) : e(prompt(c, d))
-    }
-
-    function i(a, b, c, d) {
-        a.openConfirm ? a.openConfirm(b, d) : confirm(c) && d[0]()
-    }
-
-    function j(a) {
-        return a.replace(/\\(.)/g, function (a, b) {
-            return "n" == b ? "\n" : "r" == b ? "\r" : b
-        })
-    }
-
-    function k(a) {
-        var b = a.match(/^\/(.*)\/([a-z]*)$/);
-        if (b) try {
-            a = new RegExp(b[1], -1 == b[2].indexOf("i") ? "" : "i")
-        } catch (c) {} else a = j(a);
-        return ("string" == typeof a ? "" == a : a.test("")) && (a = /x^/), a
-    }
-
-    function m(a, c, d) {
-        c.queryText = d, c.query = k(d), a.removeOverlay(c.overlay, e(c.query)), c.overlay = b(c.query, e(c.query)), a.addOverlay(c.overlay), a.showMatchesOnScrollbar && (c.annotate && (c.annotate.clear(), c.annotate = null), c.annotate = a.showMatchesOnScrollbar(c.query, e(c.query)))
-    }
-
-    function n(b, c, e) {
-        var f = d(b);
-        if (f.query) return o(b, c);
-        var i = b.getSelection() || f.lastQuery;
-        e && b.openDialog ? g(b, l, i, function (c, d) {
-            a.e_stop(d), c && (c != f.queryText && m(b, f, c), o(b, d.shiftKey))
-        }) : h(b, l, "Search for:", i, function (a) {
-            a && !f.query && b.operation(function () {
-                m(b, f, a), f.posFrom = f.posTo = b.getCursor(), o(b, c)
-            })
-        })
-    }
-
-    function o(b, c) {
-        b.operation(function () {
-            var e = d(b),
-                g = f(b, e.query, c ? e.posFrom : e.posTo);
-            (g.find(c) || (g = f(b, e.query, c ? a.Pos(b.lastLine()) : a.Pos(b.firstLine(), 0)), g.find(c))) && (b.setSelection(g.from(), g.to()), b.scrollIntoView({
-                from: g.from(),
-                to: g.to()
-            }, 20), e.posFrom = g.from(), e.posTo = g.to())
-        })
-    }
-
-    function p(a) {
-        a.operation(function () {
-            var b = d(a);
-            b.lastQuery = b.query, b.query && (b.query = b.queryText = null, a.removeOverlay(b.overlay), b.annotate && (b.annotate.clear(), b.annotate = null))
-        })
-    }
-
-    function t(a, b) {
-        if (!a.getOption("readOnly")) {
-            var c = a.getSelection() || d(a)
-                .lastQuery;
-            h(a, q, "Replace:", c, function (c) {
-                c && (c = k(c), h(a, r, "Replace with:", "", function (d) {
-                    if (d = j(d), b) a.operation(function () {
-                        for (var b = f(a, c); b.findNext();)
-                            if ("string" != typeof c) {
-                                var e = a.getRange(b.from(), b.to())
-                                    .match(c);
-                                b.replace(d.replace(/\$(\d)/g, function (a, b) {
-                                    return e[b]
-                                }))
-                            } else b.replace(d)
-                    });
-                    else {
-                        p(a);
-                        var e = f(a, c, a.getCursor()),
-                            g = function () {
-                                var d, b = e.from();
-                                !(d = e.findNext()) && (e = f(a, c), !(d = e.findNext()) || b && e.from()
-                                    .line == b.line && e.from()
-                                    .ch == b.ch) || (a.setSelection(e.from(), e.to()), a.scrollIntoView({
-                                    from: e.from(),
-                                    to: e.to()
-                                }), i(a, s, "Replace?", [function () {
-                                    h(d)
-                                }, g]))
-                            },
-                            h = function (a) {
-                                e.replace("string" == typeof c ? d : d.replace(/\$(\d)/g, function (b, c) {
-                                    return a[c]
-                                })), g()
-                            };
-                        g()
-                    }
-                }))
-            })
-        }
-    }
-    var l = 'Search: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>',
-        q = 'Replace: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>',
-        r = 'With: <input type="text" style="width: 10em" class="CodeMirror-search-field"/>',
-        s = "Replace? <button>Yes</button> <button>No</button> <button>Stop</button>";
-    a.commands.find = function (a) {
-        p(a), n(a)
-    }, a.commands.findPersistent = function (a) {
-        p(a), n(a, !1, !0)
-    }, a.commands.findNext = n, a.commands.findPrev = function (a) {
-        n(a, !0)
-    }, a.commands.clearSearch = p, a.commands.replace = t, a.commands.replaceAll = function (a) {
-        t(a, !0)
-    }
-}),
-function (a) {
-    "object" == typeof exports && "object" == typeof module ? a(require("../../lib/codemirror")) : "function" == typeof define && define.amd ? define(["../../lib/codemirror"], a) : a(CodeMirror)
-}(function (a) {
-    "use strict";
-
-    function c(a, b) {
-        return a.line - b.line || a.ch - b.ch
-    }
-
-    function g(a, b, c, d) {
-        this.line = b, this.ch = c, this.cm = a, this.text = a.getLine(b), this.min = d ? d.from : a.firstLine(), this.max = d ? d.to - 1 : a.lastLine()
-    }
-
-    function h(a, c) {
-        var d = a.cm.getTokenTypeAt(b(a.line, c));
-        return d && /\btag\b/.test(d)
-    }
-
-    function i(a) {
-        return a.line >= a.max ? void 0 : (a.ch = 0, a.text = a.cm.getLine(++a.line), !0)
-    }
-
-    function j(a) {
-        return a.line <= a.min ? void 0 : (a.text = a.cm.getLine(--a.line), a.ch = a.text.length, !0)
-    }
-
-    function k(a) {
-        for (;;) {
-            var b = a.text.indexOf(">", a.ch);
-            if (-1 == b) {
-                if (i(a)) continue;
-                return
-            } {
-                if (h(a, b + 1)) {
-                    var c = a.text.lastIndexOf("/", b),
-                        d = c > -1 && !/\S/.test(a.text.slice(c + 1, b));
-                    return a.ch = b + 1, d ? "selfClose" : "regular"
-                }
-                a.ch = b + 1
-            }
-        }
-    }
-
-    function l(a) {
-        for (;;) {
-            var b = a.ch ? a.text.lastIndexOf("<", a.ch - 1) : -1;
-            if (-1 == b) {
-                if (j(a)) continue;
-                return
-            }
-            if (h(a, b + 1)) {
-                f.lastIndex = b, a.ch = b;
-                var c = f.exec(a.text);
-                if (c && c.index == b) return c
-            } else a.ch = b
-        }
-    }
-
-    function m(a) {
-        for (;;) {
-            f.lastIndex = a.ch;
-            var b = f.exec(a.text);
-            if (!b) {
-                if (i(a)) continue;
-                return
-            } {
-                if (h(a, b.index + 1)) return a.ch = b.index + b[0].length, b;
-                a.ch = b.index + 1
-            }
-        }
-    }
-
-    function n(a) {
-        for (;;) {
-            var b = a.ch ? a.text.lastIndexOf(">", a.ch - 1) : -1;
-            if (-1 == b) {
-                if (j(a)) continue;
-                return
-            } {
-                if (h(a, b + 1)) {
-                    var c = a.text.lastIndexOf("/", b),
-                        d = c > -1 && !/\S/.test(a.text.slice(c + 1, b));
-                    return a.ch = b + 1, d ? "selfClose" : "regular"
-                }
-                a.ch = b
-            }
-        }
-    }
-
-    function o(a, c) {
-        for (var d = [];;) {
-            var f, e = m(a),
-                g = a.line,
-                h = a.ch - (e ? e[0].length : 0);
-            if (!e || !(f = k(a))) return;
-            if ("selfClose" != f)
-                if (e[1]) {
-                    for (var i = d.length - 1; i >= 0; --i)
-                        if (d[i] == e[2]) {
-                            d.length = i;
-                            break
-                        }
-                    if (0 > i && (!c || c == e[2])) return {
-                        tag: e[2],
-                        from: b(g, h),
-                        to: b(a.line, a.ch)
-                    }
-                } else d.push(e[2])
-        }
-    }
-
-    function p(a, c) {
-        for (var d = [];;) {
-            var e = n(a);
-            if (!e) return;
-            if ("selfClose" != e) {
-                var f = a.line,
-                    g = a.ch,
-                    h = l(a);
-                if (!h) return;
-                if (h[1]) d.push(h[2]);
-                else {
-                    for (var i = d.length - 1; i >= 0; --i)
-                        if (d[i] == h[2]) {
-                            d.length = i;
-                            break
-                        }
-                    if (0 > i && (!c || c == h[2])) return {
-                        tag: h[2],
-                        from: b(a.line, a.ch),
-                        to: b(f, g)
-                    }
-                }
-            } else l(a)
-        }
-    }
-    var b = a.Pos,
-        d = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD",
-        e = d + "-:.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040",
-        f = new RegExp("<(/?)([" + d + "][" + e + "]*)", "g");
-    a.registerHelper("fold", "xml", function (a, c) {
-        for (var d = new g(a, c.line, 0);;) {
-            var f, e = m(d);
-            if (!e || d.line != c.line || !(f = k(d))) return;
-            if (!e[1] && "selfClose" != f) {
-                var c = b(d.line, d.ch),
-                    h = o(d, e[2]);
-                return h && {
-                    from: c,
-                    to: h.from
-                }
-            }
-        }
-    }), a.findMatchingTag = function (a, d, e) {
-        var f = new g(a, d.line, d.ch, e);
-        if (-1 != f.text.indexOf(">") || -1 != f.text.indexOf("<")) {
-            var h = k(f),
-                i = h && b(f.line, f.ch),
-                j = h && l(f);
-            if (h && j && !(c(f, d) > 0)) {
-                var m = {
-                    from: b(f.line, f.ch),
-                    to: i,
-                    tag: j[2]
-                };
-                return "selfClose" == h ? {
-                    open: m,
-                    close: null,
-                    at: "open"
-                } : j[1] ? {
-                    open: p(f, j[2]),
-                    close: m,
-                    at: "close"
-                } : (f = new g(a, i.line, i.ch, e), {
-                    open: m,
-                    close: o(f, j[2]),
-                    at: "open"
-                })
-            }
-        }
-    }, a.findEnclosingTag = function (a, b, c) {
-        for (var d = new g(a, b.line, b.ch, c);;) {
-            var e = p(d);
-            if (!e) break;
-            var f = new g(a, b.line, b.ch, c),
-                h = o(f, e.tag);
-            if (h) return {
-                open: e,
-                close: h
-            }
-        }
-    }, a.scanForClosingTag = function (a, b, c, d) {
-        var e = new g(a, b.line, b.ch, d ? {
-            from: 0,
-            to: d
-        } : null);
-        return o(e, c)
-    }
-});
diff --git a/htdocs/Libs/Codemirror/codemirror.js b/htdocs/Libs/Codemirror/codemirror.js
new file mode 100644
index 0000000..0436a99
--- /dev/null
+++ b/htdocs/Libs/Codemirror/codemirror.js
@@ -0,0 +1,9797 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// This is CodeMirror (https://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global = global || self, global.CodeMirror = factory());
+}(this, (function () { 'use strict';
+
+  // Kludges for bugs and behavior differences that can't be feature
+  // detected are enabled based on userAgent etc sniffing.
+  var userAgent = navigator.userAgent;
+  var platform = navigator.platform;
+
+  var gecko = /gecko\/\d/i.test(userAgent);
+  var ie_upto10 = /MSIE \d/.test(userAgent);
+  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+  var edge = /Edge\/(\d+)/.exec(userAgent);
+  var ie = ie_upto10 || ie_11up || edge;
+  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
+  var webkit = !edge && /WebKit\//.test(userAgent);
+  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+  var chrome = !edge && /Chrome\//.test(userAgent);
+  var presto = /Opera\//.test(userAgent);
+  var safari = /Apple Computer/.test(navigator.vendor);
+  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+  var phantom = /PhantomJS/.test(userAgent);
+
+  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+  var android = /Android/.test(userAgent);
+  // This is woefully incomplete. Suggestions for alternative methods welcome.
+  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+  var mac = ios || /Mac/.test(platform);
+  var chromeOS = /\bCrOS\b/.test(userAgent);
+  var windows = /win/i.test(platform);
+
+  var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+  if (presto_version) { presto_version = Number(presto_version[1]); }
+  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+  var captureRightClick = gecko || (ie && ie_version >= 9);
+
+  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+  var rmClass = function(node, cls) {
+    var current = node.className;
+    var match = classTest(cls).exec(current);
+    if (match) {
+      var after = current.slice(match.index + match[0].length);
+      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+    }
+  };
+
+  function removeChildren(e) {
+    for (var count = e.childNodes.length; count > 0; --count)
+      { e.removeChild(e.firstChild); }
+    return e
+  }
+
+  function removeChildrenAndAdd(parent, e) {
+    return removeChildren(parent).appendChild(e)
+  }
+
+  function elt(tag, content, className, style) {
+    var e = document.createElement(tag);
+    if (className) { e.className = className; }
+    if (style) { e.style.cssText = style; }
+    if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
+    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
+    return e
+  }
+  // wrapper for elt, which removes the elt from the accessibility tree
+  function eltP(tag, content, className, style) {
+    var e = elt(tag, content, className, style);
+    e.setAttribute("role", "presentation");
+    return e
+  }
+
+  var range;
+  if (document.createRange) { range = function(node, start, end, endNode) {
+    var r = document.createRange();
+    r.setEnd(endNode || node, end);
+    r.setStart(node, start);
+    return r
+  }; }
+  else { range = function(node, start, end) {
+    var r = document.body.createTextRange();
+    try { r.moveToElementText(node.parentNode); }
+    catch(e) { return r }
+    r.collapse(true);
+    r.moveEnd("character", end);
+    r.moveStart("character", start);
+    return r
+  }; }
+
+  function contains(parent, child) {
+    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+      { child = child.parentNode; }
+    if (parent.contains)
+      { return parent.contains(child) }
+    do {
+      if (child.nodeType == 11) { child = child.host; }
+      if (child == parent) { return true }
+    } while (child = child.parentNode)
+  }
+
+  function activeElt() {
+    // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
+    // IE < 10 will throw when accessed while the page is loading or in an iframe.
+    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
+    var activeElement;
+    try {
+      activeElement = document.activeElement;
+    } catch(e) {
+      activeElement = document.body || null;
+    }
+    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
+      { activeElement = activeElement.shadowRoot.activeElement; }
+    return activeElement
+  }
+
+  function addClass(node, cls) {
+    var current = node.className;
+    if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
+  }
+  function joinClasses(a, b) {
+    var as = a.split(" ");
+    for (var i = 0; i < as.length; i++)
+      { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
+    return b
+  }
+
+  var selectInput = function(node) { node.select(); };
+  if (ios) // Mobile Safari apparently has a bug where select() is broken.
+    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
+  else if (ie) // Suppress mysterious IE10 errors
+    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }
+
+  function bind(f) {
+    var args = Array.prototype.slice.call(arguments, 1);
+    return function(){return f.apply(null, args)}
+  }
+
+  function copyObj(obj, target, overwrite) {
+    if (!target) { target = {}; }
+    for (var prop in obj)
+      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+        { target[prop] = obj[prop]; } }
+    return target
+  }
+
+  // Counts the column offset in a string, taking tabs into account.
+  // Used mostly to find indentation.
+  function countColumn(string, end, tabSize, startIndex, startValue) {
+    if (end == null) {
+      end = string.search(/[^\s\u00a0]/);
+      if (end == -1) { end = string.length; }
+    }
+    for (var i = startIndex || 0, n = startValue || 0;;) {
+      var nextTab = string.indexOf("\t", i);
+      if (nextTab < 0 || nextTab >= end)
+        { return n + (end - i) }
+      n += nextTab - i;
+      n += tabSize - (n % tabSize);
+      i = nextTab + 1;
+    }
+  }
+
+  var Delayed = function() {
+    this.id = null;
+    this.f = null;
+    this.time = 0;
+    this.handler = bind(this.onTimeout, this);
+  };
+  Delayed.prototype.onTimeout = function (self) {
+    self.id = 0;
+    if (self.time <= +new Date) {
+      self.f();
+    } else {
+      setTimeout(self.handler, self.time - +new Date);
+    }
+  };
+  Delayed.prototype.set = function (ms, f) {
+    this.f = f;
+    var time = +new Date + ms;
+    if (!this.id || time < this.time) {
+      clearTimeout(this.id);
+      this.id = setTimeout(this.handler, ms);
+      this.time = time;
+    }
+  };
+
+  function indexOf(array, elt) {
+    for (var i = 0; i < array.length; ++i)
+      { if (array[i] == elt) { return i } }
+    return -1
+  }
+
+  // Number of pixels added to scroller and sizer to hide scrollbar
+  var scrollerGap = 50;
+
+  // Returned or thrown by various protocols to signal 'I'm not
+  // handling this'.
+  var Pass = {toString: function(){return "CodeMirror.Pass"}};
+
+  // Reused option objects for setSelection & friends
+  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+  // The inverse of countColumn -- find the offset that corresponds to
+  // a particular column.
+  function findColumn(string, goal, tabSize) {
+    for (var pos = 0, col = 0;;) {
+      var nextTab = string.indexOf("\t", pos);
+      if (nextTab == -1) { nextTab = string.length; }
+      var skipped = nextTab - pos;
+      if (nextTab == string.length || col + skipped >= goal)
+        { return pos + Math.min(skipped, goal - col) }
+      col += nextTab - pos;
+      col += tabSize - (col % tabSize);
+      pos = nextTab + 1;
+      if (col >= goal) { return pos }
+    }
+  }
+
+  var spaceStrs = [""];
+  function spaceStr(n) {
+    while (spaceStrs.length <= n)
+      { spaceStrs.push(lst(spaceStrs) + " "); }
+    return spaceStrs[n]
+  }
+
+  function lst(arr) { return arr[arr.length-1] }
+
+  function map(array, f) {
+    var out = [];
+    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
+    return out
+  }
+
+  function insertSorted(array, value, score) {
+    var pos = 0, priority = score(value);
+    while (pos < array.length && score(array[pos]) <= priority) { pos++; }
+    array.splice(pos, 0, value);
+  }
+
+  function nothing() {}
+
+  function createObj(base, props) {
+    var inst;
+    if (Object.create) {
+      inst = Object.create(base);
+    } else {
+      nothing.prototype = base;
+      inst = new nothing();
+    }
+    if (props) { copyObj(props, inst); }
+    return inst
+  }
+
+  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+  function isWordCharBasic(ch) {
+    return /\w/.test(ch) || ch > "\x80" &&
+      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
+  }
+  function isWordChar(ch, helper) {
+    if (!helper) { return isWordCharBasic(ch) }
+    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
+    return helper.test(ch)
+  }
+
+  function isEmpty(obj) {
+    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
+    return true
+  }
+
+  // Extending unicode characters. A series of a non-extending char +
+  // any number of extending chars is treated as a single unit as far
+  // as editing and measuring is concerned. This is not fully correct,
+  // since some scripts/fonts/browsers also treat other configurations
+  // of code points as a group.
+  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
+
+  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
+  function skipExtendingChars(str, pos, dir) {
+    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
+    return pos
+  }
+
+  // Returns the value from the range [`from`; `to`] that satisfies
+  // `pred` and is closest to `from`. Assumes that at least `to`
+  // satisfies `pred`. Supports `from` being greater than `to`.
+  function findFirst(pred, from, to) {
+    // At any point we are certain `to` satisfies `pred`, don't know
+    // whether `from` does.
+    var dir = from > to ? -1 : 1;
+    for (;;) {
+      if (from == to) { return from }
+      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
+      if (mid == from) { return pred(mid) ? from : to }
+      if (pred(mid)) { to = mid; }
+      else { from = mid + dir; }
+    }
+  }
+
+  // BIDI HELPERS
+
+  function iterateBidiSections(order, from, to, f) {
+    if (!order) { return f(from, to, "ltr", 0) }
+    var found = false;
+    for (var i = 0; i < order.length; ++i) {
+      var part = order[i];
+      if (part.from < to && part.to > from || from == to && part.to == from) {
+        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
+        found = true;
+      }
+    }
+    if (!found) { f(from, to, "ltr"); }
+  }
+
+  var bidiOther = null;
+  function getBidiPartAt(order, ch, sticky) {
+    var found;
+    bidiOther = null;
+    for (var i = 0; i < order.length; ++i) {
+      var cur = order[i];
+      if (cur.from < ch && cur.to > ch) { return i }
+      if (cur.to == ch) {
+        if (cur.from != cur.to && sticky == "before") { found = i; }
+        else { bidiOther = i; }
+      }
+      if (cur.from == ch) {
+        if (cur.from != cur.to && sticky != "before") { found = i; }
+        else { bidiOther = i; }
+      }
+    }
+    return found != null ? found : bidiOther
+  }
+
+  // Bidirectional ordering algorithm
+  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+  // that this (partially) implements.
+
+  // One-char codes used for character types:
+  // L (L):   Left-to-Right
+  // R (R):   Right-to-Left
+  // r (AL):  Right-to-Left Arabic
+  // 1 (EN):  European Number
+  // + (ES):  European Number Separator
+  // % (ET):  European Number Terminator
+  // n (AN):  Arabic Number
+  // , (CS):  Common Number Separator
+  // m (NSM): Non-Spacing Mark
+  // b (BN):  Boundary Neutral
+  // s (B):   Paragraph Separator
+  // t (S):   Segment Separator
+  // w (WS):  Whitespace
+  // N (ON):  Other Neutrals
+
+  // Returns null if characters are ordered as they appear
+  // (left-to-right), or an array of sections ({from, to, level}
+  // objects) in the order in which they occur visually.
+  var bidiOrdering = (function() {
+    // Character types for codepoints 0 to 0xff
+    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+    // Character types for codepoints 0x600 to 0x6f9
+    var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
+    function charType(code) {
+      if (code <= 0xf7) { return lowTypes.charAt(code) }
+      else if (0x590 <= code && code <= 0x5f4) { return "R" }
+      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
+      else if (0x6ee <= code && code <= 0x8ac) { return "r" }
+      else if (0x2000 <= code && code <= 0x200b) { return "w" }
+      else if (code == 0x200c) { return "b" }
+      else { return "L" }
+    }
+
+    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+
+    function BidiSpan(level, from, to) {
+      this.level = level;
+      this.from = from; this.to = to;
+    }
+
+    return function(str, direction) {
+      var outerType = direction == "ltr" ? "L" : "R";
+
+      if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
+      var len = str.length, types = [];
+      for (var i = 0; i < len; ++i)
+        { types.push(charType(str.charCodeAt(i))); }
+
+      // W1. Examine each non-spacing mark (NSM) in the level run, and
+      // change the type of the NSM to the type of the previous
+      // character. If the NSM is at the start of the level run, it will
+      // get the type of sor.
+      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
+        var type = types[i$1];
+        if (type == "m") { types[i$1] = prev; }
+        else { prev = type; }
+      }
+
+      // W2. Search backwards from each instance of a European number
+      // until the first strong type (R, L, AL, or sor) is found. If an
+      // AL is found, change the type of the European number to Arabic
+      // number.
+      // W3. Change all ALs to R.
+      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
+        var type$1 = types[i$2];
+        if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
+        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
+      }
+
+      // W4. A single European separator between two European numbers
+      // changes to a European number. A single common separator between
+      // two numbers of the same type changes to that type.
+      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
+        var type$2 = types[i$3];
+        if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
+        else if (type$2 == "," && prev$1 == types[i$3+1] &&
+                 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
+        prev$1 = type$2;
+      }
+
+      // W5. A sequence of European terminators adjacent to European
+      // numbers changes to all European numbers.
+      // W6. Otherwise, separators and terminators change to Other
+      // Neutral.
+      for (var i$4 = 0; i$4 < len; ++i$4) {
+        var type$3 = types[i$4];
+        if (type$3 == ",") { types[i$4] = "N"; }
+        else if (type$3 == "%") {
+          var end = (void 0);
+          for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
+          var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+          for (var j = i$4; j < end; ++j) { types[j] = replace; }
+          i$4 = end - 1;
+        }
+      }
+
+      // W7. Search backwards from each instance of a European number
+      // until the first strong type (R, L, or sor) is found. If an L is
+      // found, then change the type of the European number to L.
+      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
+        var type$4 = types[i$5];
+        if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
+        else if (isStrong.test(type$4)) { cur$1 = type$4; }
+      }
+
+      // N1. A sequence of neutrals takes the direction of the
+      // surrounding strong text if the text on both sides has the same
+      // direction. European and Arabic numbers act as if they were R in
+      // terms of their influence on neutrals. Start-of-level-run (sor)
+      // and end-of-level-run (eor) are used at level run boundaries.
+      // N2. Any remaining neutrals take the embedding direction.
+      for (var i$6 = 0; i$6 < len; ++i$6) {
+        if (isNeutral.test(types[i$6])) {
+          var end$1 = (void 0);
+          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
+          var before = (i$6 ? types[i$6-1] : outerType) == "L";
+          var after = (end$1 < len ? types[end$1] : outerType) == "L";
+          var replace$1 = before == after ? (before ? "L" : "R") : outerType;
+          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
+          i$6 = end$1 - 1;
+        }
+      }
+
+      // Here we depart from the documented algorithm, in order to avoid
+      // building up an actual levels array. Since there are only three
+      // levels (0, 1, 2) in an implementation that doesn't take
+      // explicit embedding into account, we can build up the order on
+      // the fly, without following the level-based algorithm.
+      var order = [], m;
+      for (var i$7 = 0; i$7 < len;) {
+        if (countsAsLeft.test(types[i$7])) {
+          var start = i$7;
+          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
+          order.push(new BidiSpan(0, start, i$7));
+        } else {
+          var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
+          for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
+          for (var j$2 = pos; j$2 < i$7;) {
+            if (countsAsNum.test(types[j$2])) {
+              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
+              var nstart = j$2;
+              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
+              order.splice(at, 0, new BidiSpan(2, nstart, j$2));
+              at += isRTL;
+              pos = j$2;
+            } else { ++j$2; }
+          }
+          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
+        }
+      }
+      if (direction == "ltr") {
+        if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+          order[0].from = m[0].length;
+          order.unshift(new BidiSpan(0, 0, m[0].length));
+        }
+        if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+          lst(order).to -= m[0].length;
+          order.push(new BidiSpan(0, len - m[0].length, len));
+        }
+      }
+
+      return direction == "rtl" ? order.reverse() : order
+    }
+  })();
+
+  // Get the bidi ordering for the given line (and cache it). Returns
+  // false for lines that are fully left-to-right, and an array of
+  // BidiSpan objects otherwise.
+  function getOrder(line, direction) {
+    var order = line.order;
+    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
+    return order
+  }
+
+  // EVENT HANDLING
+
+  // Lightweight event framework. on/off also work on DOM nodes,
+  // registering native DOM handlers.
+
+  var noHandlers = [];
+
+  var on = function(emitter, type, f) {
+    if (emitter.addEventListener) {
+      emitter.addEventListener(type, f, false);
+    } else if (emitter.attachEvent) {
+      emitter.attachEvent("on" + type, f);
+    } else {
+      var map = emitter._handlers || (emitter._handlers = {});
+      map[type] = (map[type] || noHandlers).concat(f);
+    }
+  };
+
+  function getHandlers(emitter, type) {
+    return emitter._handlers && emitter._handlers[type] || noHandlers
+  }
+
+  function off(emitter, type, f) {
+    if (emitter.removeEventListener) {
+      emitter.removeEventListener(type, f, false);
+    } else if (emitter.detachEvent) {
+      emitter.detachEvent("on" + type, f);
+    } else {
+      var map = emitter._handlers, arr = map && map[type];
+      if (arr) {
+        var index = indexOf(arr, f);
+        if (index > -1)
+          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
+      }
+    }
+  }
+
+  function signal(emitter, type /*, values...*/) {
+    var handlers = getHandlers(emitter, type);
+    if (!handlers.length) { return }
+    var args = Array.prototype.slice.call(arguments, 2);
+    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
+  }
+
+  // The DOM events that CodeMirror handles can be overridden by
+  // registering a (non-DOM) handler on the editor for the event name,
+  // and preventDefault-ing the event in that handler.
+  function signalDOMEvent(cm, e, override) {
+    if (typeof e == "string")
+      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
+    signal(cm, override || e.type, cm, e);
+    return e_defaultPrevented(e) || e.codemirrorIgnore
+  }
+
+  function signalCursorActivity(cm) {
+    var arr = cm._handlers && cm._handlers.cursorActivity;
+    if (!arr) { return }
+    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
+      { set.push(arr[i]); } }
+  }
+
+  function hasHandler(emitter, type) {
+    return getHandlers(emitter, type).length > 0
+  }
+
+  // Add on and off methods to a constructor's prototype, to make
+  // registering events on such objects more convenient.
+  function eventMixin(ctor) {
+    ctor.prototype.on = function(type, f) {on(this, type, f);};
+    ctor.prototype.off = function(type, f) {off(this, type, f);};
+  }
+
+  // Due to the fact that we still support jurassic IE versions, some
+  // compatibility wrappers are needed.
+
+  function e_preventDefault(e) {
+    if (e.preventDefault) { e.preventDefault(); }
+    else { e.returnValue = false; }
+  }
+  function e_stopPropagation(e) {
+    if (e.stopPropagation) { e.stopPropagation(); }
+    else { e.cancelBubble = true; }
+  }
+  function e_defaultPrevented(e) {
+    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
+  }
+  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
+
+  function e_target(e) {return e.target || e.srcElement}
+  function e_button(e) {
+    var b = e.which;
+    if (b == null) {
+      if (e.button & 1) { b = 1; }
+      else if (e.button & 2) { b = 3; }
+      else if (e.button & 4) { b = 2; }
+    }
+    if (mac && e.ctrlKey && b == 1) { b = 3; }
+    return b
+  }
+
+  // Detect drag-and-drop
+  var dragAndDrop = function() {
+    // There is *some* kind of drag-and-drop support in IE6-8, but I
+    // couldn't get it to work yet.
+    if (ie && ie_version < 9) { return false }
+    var div = elt('div');
+    return "draggable" in div || "dragDrop" in div
+  }();
+
+  var zwspSupported;
+  function zeroWidthElement(measure) {
+    if (zwspSupported == null) {
+      var test = elt("span", "\u200b");
+      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+      if (measure.firstChild.offsetHeight != 0)
+        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
+    }
+    var node = zwspSupported ? elt("span", "\u200b") :
+      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+    node.setAttribute("cm-text", "");
+    return node
+  }
+
+  // Feature-detect IE's crummy client rect reporting for bidi text
+  var badBidiRects;
+  function hasBadBidiRects(measure) {
+    if (badBidiRects != null) { return badBidiRects }
+    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+    var r0 = range(txt, 0, 1).getBoundingClientRect();
+    var r1 = range(txt, 1, 2).getBoundingClientRect();
+    removeChildren(measure);
+    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
+    return badBidiRects = (r1.right - r0.right < 3)
+  }
+
+  // See if "".split is the broken IE version, if so, provide an
+  // alternative way to split lines.
+  var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
+    var pos = 0, result = [], l = string.length;
+    while (pos <= l) {
+      var nl = string.indexOf("\n", pos);
+      if (nl == -1) { nl = string.length; }
+      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+      var rt = line.indexOf("\r");
+      if (rt != -1) {
+        result.push(line.slice(0, rt));
+        pos += rt + 1;
+      } else {
+        result.push(line);
+        pos = nl + 1;
+      }
+    }
+    return result
+  } : function (string) { return string.split(/\r\n?|\n/); };
+
+  var hasSelection = window.getSelection ? function (te) {
+    try { return te.selectionStart != te.selectionEnd }
+    catch(e) { return false }
+  } : function (te) {
+    var range;
+    try {range = te.ownerDocument.selection.createRange();}
+    catch(e) {}
+    if (!range || range.parentElement() != te) { return false }
+    return range.compareEndPoints("StartToEnd", range) != 0
+  };
+
+  var hasCopyEvent = (function () {
+    var e = elt("div");
+    if ("oncopy" in e) { return true }
+    e.setAttribute("oncopy", "return;");
+    return typeof e.oncopy == "function"
+  })();
+
+  var badZoomedRects = null;
+  function hasBadZoomedRects(measure) {
+    if (badZoomedRects != null) { return badZoomedRects }
+    var node = removeChildrenAndAdd(measure, elt("span", "x"));
+    var normal = node.getBoundingClientRect();
+    var fromRange = range(node, 0, 1).getBoundingClientRect();
+    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
+  }
+
+  // Known modes, by name and by MIME
+  var modes = {}, mimeModes = {};
+
+  // Extra arguments are stored as the mode's dependencies, which is
+  // used by (legacy) mechanisms like loadmode.js to automatically
+  // load a mode. (Preferred mechanism is the require/define calls.)
+  function defineMode(name, mode) {
+    if (arguments.length > 2)
+      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
+    modes[name] = mode;
+  }
+
+  function defineMIME(mime, spec) {
+    mimeModes[mime] = spec;
+  }
+
+  // Given a MIME type, a {name, ...options} config object, or a name
+  // string, return a mode config object.
+  function resolveMode(spec) {
+    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+      spec = mimeModes[spec];
+    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+      var found = mimeModes[spec.name];
+      if (typeof found == "string") { found = {name: found}; }
+      spec = createObj(found, spec);
+      spec.name = found.name;
+    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+      return resolveMode("application/xml")
+    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+      return resolveMode("application/json")
+    }
+    if (typeof spec == "string") { return {name: spec} }
+    else { return spec || {name: "null"} }
+  }
+
+  // Given a mode spec (anything that resolveMode accepts), find and
+  // initialize an actual mode object.
+  function getMode(options, spec) {
+    spec = resolveMode(spec);
+    var mfactory = modes[spec.name];
+    if (!mfactory) { return getMode(options, "text/plain") }
+    var modeObj = mfactory(options, spec);
+    if (modeExtensions.hasOwnProperty(spec.name)) {
+      var exts = modeExtensions[spec.name];
+      for (var prop in exts) {
+        if (!exts.hasOwnProperty(prop)) { continue }
+        if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
+        modeObj[prop] = exts[prop];
+      }
+    }
+    modeObj.name = spec.name;
+    if (spec.helperType) { modeObj.helperType = spec.helperType; }
+    if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+      { modeObj[prop$1] = spec.modeProps[prop$1]; } }
+
+    return modeObj
+  }
+
+  // This can be used to attach properties to mode objects from
+  // outside the actual mode definition.
+  var modeExtensions = {};
+  function extendMode(mode, properties) {
+    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+    copyObj(properties, exts);
+  }
+
+  function copyState(mode, state) {
+    if (state === true) { return state }
+    if (mode.copyState) { return mode.copyState(state) }
+    var nstate = {};
+    for (var n in state) {
+      var val = state[n];
+      if (val instanceof Array) { val = val.concat([]); }
+      nstate[n] = val;
+    }
+    return nstate
+  }
+
+  // Given a mode and a state (for that mode), find the inner mode and
+  // state at the position that the state refers to.
+  function innerMode(mode, state) {
+    var info;
+    while (mode.innerMode) {
+      info = mode.innerMode(state);
+      if (!info || info.mode == mode) { break }
+      state = info.state;
+      mode = info.mode;
+    }
+    return info || {mode: mode, state: state}
+  }
+
+  function startState(mode, a1, a2) {
+    return mode.startState ? mode.startState(a1, a2) : true
+  }
+
+  // STRING STREAM
+
+  // Fed to the mode parsers, provides helper functions to make
+  // parsers more succinct.
+
+  var StringStream = function(string, tabSize, lineOracle) {
+    this.pos = this.start = 0;
+    this.string = string;
+    this.tabSize = tabSize || 8;
+    this.lastColumnPos = this.lastColumnValue = 0;
+    this.lineStart = 0;
+    this.lineOracle = lineOracle;
+  };
+
+  StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+  StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+  StringStream.prototype.next = function () {
+    if (this.pos < this.string.length)
+      { return this.string.charAt(this.pos++) }
+  };
+  StringStream.prototype.eat = function (match) {
+    var ch = this.string.charAt(this.pos);
+    var ok;
+    if (typeof match == "string") { ok = ch == match; }
+    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
+    if (ok) {++this.pos; return ch}
+  };
+  StringStream.prototype.eatWhile = function (match) {
+    var start = this.pos;
+    while (this.eat(match)){}
+    return this.pos > start
+  };
+  StringStream.prototype.eatSpace = function () {
+    var start = this.pos;
+    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
+    return this.pos > start
+  };
+  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
+  StringStream.prototype.skipTo = function (ch) {
+    var found = this.string.indexOf(ch, this.pos);
+    if (found > -1) {this.pos = found; return true}
+  };
+  StringStream.prototype.backUp = function (n) {this.pos -= n;};
+  StringStream.prototype.column = function () {
+    if (this.lastColumnPos < this.start) {
+      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+      this.lastColumnPos = this.start;
+    }
+    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  };
+  StringStream.prototype.indentation = function () {
+    return countColumn(this.string, null, this.tabSize) -
+      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  };
+  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+    if (typeof pattern == "string") {
+      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
+      var substr = this.string.substr(this.pos, pattern.length);
+      if (cased(substr) == cased(pattern)) {
+        if (consume !== false) { this.pos += pattern.length; }
+        return true
+      }
+    } else {
+      var match = this.string.slice(this.pos).match(pattern);
+      if (match && match.index > 0) { return null }
+      if (match && consume !== false) { this.pos += match[0].length; }
+      return match
+    }
+  };
+  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+  StringStream.prototype.hideFirstChars = function (n, inner) {
+    this.lineStart += n;
+    try { return inner() }
+    finally { this.lineStart -= n; }
+  };
+  StringStream.prototype.lookAhead = function (n) {
+    var oracle = this.lineOracle;
+    return oracle && oracle.lookAhead(n)
+  };
+  StringStream.prototype.baseToken = function () {
+    var oracle = this.lineOracle;
+    return oracle && oracle.baseToken(this.pos)
+  };
+
+  // Find the line object corresponding to the given line number.
+  function getLine(doc, n) {
+    n -= doc.first;
+    if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
+    var chunk = doc;
+    while (!chunk.lines) {
+      for (var i = 0;; ++i) {
+        var child = chunk.children[i], sz = child.chunkSize();
+        if (n < sz) { chunk = child; break }
+        n -= sz;
+      }
+    }
+    return chunk.lines[n]
+  }
+
+  // Get the part of a document between two positions, as an array of
+  // strings.
+  function getBetween(doc, start, end) {
+    var out = [], n = start.line;
+    doc.iter(start.line, end.line + 1, function (line) {
+      var text = line.text;
+      if (n == end.line) { text = text.slice(0, end.ch); }
+      if (n == start.line) { text = text.slice(start.ch); }
+      out.push(text);
+      ++n;
+    });
+    return out
+  }
+  // Get the lines between from and to, as array of strings.
+  function getLines(doc, from, to) {
+    var out = [];
+    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
+    return out
+  }
+
+  // Update the height of a line, propagating the height change
+  // upwards to parent nodes.
+  function updateLineHeight(line, height) {
+    var diff = height - line.height;
+    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
+  }
+
+  // Given a line object, find its line number by walking up through
+  // its parent links.
+  function lineNo(line) {
+    if (line.parent == null) { return null }
+    var cur = line.parent, no = indexOf(cur.lines, line);
+    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+      for (var i = 0;; ++i) {
+        if (chunk.children[i] == cur) { break }
+        no += chunk.children[i].chunkSize();
+      }
+    }
+    return no + cur.first
+  }
+
+  // Find the line at the given vertical position, using the height
+  // information in the document tree.
+  function lineAtHeight(chunk, h) {
+    var n = chunk.first;
+    outer: do {
+      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
+        var child = chunk.children[i$1], ch = child.height;
+        if (h < ch) { chunk = child; continue outer }
+        h -= ch;
+        n += child.chunkSize();
+      }
+      return n
+    } while (!chunk.lines)
+    var i = 0;
+    for (; i < chunk.lines.length; ++i) {
+      var line = chunk.lines[i], lh = line.height;
+      if (h < lh) { break }
+      h -= lh;
+    }
+    return n + i
+  }
+
+  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
+
+  function lineNumberFor(options, i) {
+    return String(options.lineNumberFormatter(i + options.firstLineNumber))
+  }
+
+  // A Pos instance represents a position within the text.
+  function Pos(line, ch, sticky) {
+    if ( sticky === void 0 ) sticky = null;
+
+    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
+    this.line = line;
+    this.ch = ch;
+    this.sticky = sticky;
+  }
+
+  // Compare two positions, return 0 if they are the same, a negative
+  // number when a is less, and a positive number otherwise.
+  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+  function copyPos(x) {return Pos(x.line, x.ch)}
+  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+  // Most of the external API clips given positions to make sure they
+  // actually exist within the document.
+  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+  function clipPos(doc, pos) {
+    if (pos.line < doc.first) { return Pos(doc.first, 0) }
+    var last = doc.first + doc.size - 1;
+    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
+    return clipToLen(pos, getLine(doc, pos.line).text.length)
+  }
+  function clipToLen(pos, linelen) {
+    var ch = pos.ch;
+    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
+    else if (ch < 0) { return Pos(pos.line, 0) }
+    else { return pos }
+  }
+  function clipPosArray(doc, array) {
+    var out = [];
+    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
+    return out
+  }
+
+  var SavedContext = function(state, lookAhead) {
+    this.state = state;
+    this.lookAhead = lookAhead;
+  };
+
+  var Context = function(doc, state, line, lookAhead) {
+    this.state = state;
+    this.doc = doc;
+    this.line = line;
+    this.maxLookAhead = lookAhead || 0;
+    this.baseTokens = null;
+    this.baseTokenPos = 1;
+  };
+
+  Context.prototype.lookAhead = function (n) {
+    var line = this.doc.getLine(this.line + n);
+    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
+    return line
+  };
+
+  Context.prototype.baseToken = function (n) {
+    if (!this.baseTokens) { return null }
+    while (this.baseTokens[this.baseTokenPos] <= n)
+      { this.baseTokenPos += 2; }
+    var type = this.baseTokens[this.baseTokenPos + 1];
+    return {type: type && type.replace(/( |^)overlay .*/, ""),
+            size: this.baseTokens[this.baseTokenPos] - n}
+  };
+
+  Context.prototype.nextLine = function () {
+    this.line++;
+    if (this.maxLookAhead > 0) { this.maxLookAhead--; }
+  };
+
+  Context.fromSaved = function (doc, saved, line) {
+    if (saved instanceof SavedContext)
+      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
+    else
+      { return new Context(doc, copyState(doc.mode, saved), line) }
+  };
+
+  Context.prototype.save = function (copy) {
+    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
+    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
+  };
+
+
+  // Compute a style array (an array starting with a mode generation
+  // -- for invalidation -- followed by pairs of end positions and
+  // style strings), which is used to highlight the tokens on the
+  // line.
+  function highlightLine(cm, line, context, forceToEnd) {
+    // A styles array always starts with a number identifying the
+    // mode/overlays that it is based on (for easy invalidation).
+    var st = [cm.state.modeGen], lineClasses = {};
+    // Compute the base array of styles
+    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
+            lineClasses, forceToEnd);
+    var state = context.state;
+
+    // Run overlays, adjust style array.
+    var loop = function ( o ) {
+      context.baseTokens = st;
+      var overlay = cm.state.overlays[o], i = 1, at = 0;
+      context.state = true;
+      runMode(cm, line.text, overlay.mode, context, function (end, style) {
+        var start = i;
+        // Ensure there's a token end at the current position, and that i points at it
+        while (at < end) {
+          var i_end = st[i];
+          if (i_end > end)
+            { st.splice(i, 1, end, st[i+1], i_end); }
+          i += 2;
+          at = Math.min(end, i_end);
+        }
+        if (!style) { return }
+        if (overlay.opaque) {
+          st.splice(start, i - start, end, "overlay " + style);
+          i = start + 2;
+        } else {
+          for (; start < i; start += 2) {
+            var cur = st[start+1];
+            st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
+          }
+        }
+      }, lineClasses);
+      context.state = state;
+      context.baseTokens = null;
+      context.baseTokenPos = 1;
+    };
+
+    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
+
+    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
+  }
+
+  function getLineStyles(cm, line, updateFrontier) {
+    if (!line.styles || line.styles[0] != cm.state.modeGen) {
+      var context = getContextBefore(cm, lineNo(line));
+      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
+      var result = highlightLine(cm, line, context);
+      if (resetState) { context.state = resetState; }
+      line.stateAfter = context.save(!resetState);
+      line.styles = result.styles;
+      if (result.classes) { line.styleClasses = result.classes; }
+      else if (line.styleClasses) { line.styleClasses = null; }
+      if (updateFrontier === cm.doc.highlightFrontier)
+        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
+    }
+    return line.styles
+  }
+
+  function getContextBefore(cm, n, precise) {
+    var doc = cm.doc, display = cm.display;
+    if (!doc.mode.startState) { return new Context(doc, true, n) }
+    var start = findStartLine(cm, n, precise);
+    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
+    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);
+
+    doc.iter(start, n, function (line) {
+      processLine(cm, line.text, context);
+      var pos = context.line;
+      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
+      context.nextLine();
+    });
+    if (precise) { doc.modeFrontier = context.line; }
+    return context
+  }
+
+  // Lightweight form of highlight -- proceed over this line and
+  // update state, but don't save a style array. Used for lines that
+  // aren't currently visible.
+  function processLine(cm, text, context, startAt) {
+    var mode = cm.doc.mode;
+    var stream = new StringStream(text, cm.options.tabSize, context);
+    stream.start = stream.pos = startAt || 0;
+    if (text == "") { callBlankLine(mode, context.state); }
+    while (!stream.eol()) {
+      readToken(mode, stream, context.state);
+      stream.start = stream.pos;
+    }
+  }
+
+  function callBlankLine(mode, state) {
+    if (mode.blankLine) { return mode.blankLine(state) }
+    if (!mode.innerMode) { return }
+    var inner = innerMode(mode, state);
+    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
+  }
+
+  function readToken(mode, stream, state, inner) {
+    for (var i = 0; i < 10; i++) {
+      if (inner) { inner[0] = innerMode(mode, state).mode; }
+      var style = mode.token(stream, state);
+      if (stream.pos > stream.start) { return style }
+    }
+    throw new Error("Mode " + mode.name + " failed to advance stream.")
+  }
+
+  var Token = function(stream, type, state) {
+    this.start = stream.start; this.end = stream.pos;
+    this.string = stream.current();
+    this.type = type || null;
+    this.state = state;
+  };
+
+  // Utility for getTokenAt and getLineTokens
+  function takeToken(cm, pos, precise, asArray) {
+    var doc = cm.doc, mode = doc.mode, style;
+    pos = clipPos(doc, pos);
+    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
+    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
+    if (asArray) { tokens = []; }
+    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+      stream.start = stream.pos;
+      style = readToken(mode, stream, context.state);
+      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
+    }
+    return asArray ? tokens : new Token(stream, style, context.state)
+  }
+
+  function extractLineClasses(type, output) {
+    if (type) { for (;;) {
+      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+      if (!lineClass) { break }
+      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+      var prop = lineClass[1] ? "bgClass" : "textClass";
+      if (output[prop] == null)
+        { output[prop] = lineClass[2]; }
+      else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
+        { output[prop] += " " + lineClass[2]; }
+    } }
+    return type
+  }
+
+  // Run the given mode's parser over a line, calling f for each token.
+  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
+    var flattenSpans = mode.flattenSpans;
+    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
+    var curStart = 0, curStyle = null;
+    var stream = new StringStream(text, cm.options.tabSize, context), style;
+    var inner = cm.options.addModeClass && [null];
+    if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
+    while (!stream.eol()) {
+      if (stream.pos > cm.options.maxHighlightLength) {
+        flattenSpans = false;
+        if (forceToEnd) { processLine(cm, text, context, stream.pos); }
+        stream.pos = text.length;
+        style = null;
+      } else {
+        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
+      }
+      if (inner) {
+        var mName = inner[0].name;
+        if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
+      }
+      if (!flattenSpans || curStyle != style) {
+        while (curStart < stream.start) {
+          curStart = Math.min(stream.start, curStart + 5000);
+          f(curStart, curStyle);
+        }
+        curStyle = style;
+      }
+      stream.start = stream.pos;
+    }
+    while (curStart < stream.pos) {
+      // Webkit seems to refuse to render text nodes longer than 57444
+      // characters, and returns inaccurate measurements in nodes
+      // starting around 5000 chars.
+      var pos = Math.min(stream.pos, curStart + 5000);
+      f(pos, curStyle);
+      curStart = pos;
+    }
+  }
+
+  // Finds the line to start with when starting a parse. Tries to
+  // find a line with a stateAfter, so that it can start with a
+  // valid state. If that fails, it returns the line with the
+  // smallest indentation, which tends to need the least context to
+  // parse correctly.
+  function findStartLine(cm, n, precise) {
+    var minindent, minline, doc = cm.doc;
+    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+    for (var search = n; search > lim; --search) {
+      if (search <= doc.first) { return doc.first }
+      var line = getLine(doc, search - 1), after = line.stateAfter;
+      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
+        { return search }
+      var indented = countColumn(line.text, null, cm.options.tabSize);
+      if (minline == null || minindent > indented) {
+        minline = search - 1;
+        minindent = indented;
+      }
+    }
+    return minline
+  }
+
+  function retreatFrontier(doc, n) {
+    doc.modeFrontier = Math.min(doc.modeFrontier, n);
+    if (doc.highlightFrontier < n - 10) { return }
+    var start = doc.first;
+    for (var line = n - 1; line > start; line--) {
+      var saved = getLine(doc, line).stateAfter;
+      // change is on 3
+      // state on line 1 looked ahead 2 -- so saw 3
+      // test 1 + 2 < 3 should cover this
+      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
+        start = line + 1;
+        break
+      }
+    }
+    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
+  }
+
+  // Optimize some code when these features are not used.
+  var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+  function seeReadOnlySpans() {
+    sawReadOnlySpans = true;
+  }
+
+  function seeCollapsedSpans() {
+    sawCollapsedSpans = true;
+  }
+
+  // TEXTMARKER SPANS
+
+  function MarkedSpan(marker, from, to) {
+    this.marker = marker;
+    this.from = from; this.to = to;
+  }
+
+  // Search an array of spans for a span matching the given marker.
+  function getMarkedSpanFor(spans, marker) {
+    if (spans) { for (var i = 0; i < spans.length; ++i) {
+      var span = spans[i];
+      if (span.marker == marker) { return span }
+    } }
+  }
+  // Remove a span from an array, returning undefined if no spans are
+  // left (we don't store arrays for lines without spans).
+  function removeMarkedSpan(spans, span) {
+    var r;
+    for (var i = 0; i < spans.length; ++i)
+      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
+    return r
+  }
+  // Add a span to a line.
+  function addMarkedSpan(line, span) {
+    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+    span.marker.attachLine(line);
+  }
+
+  // Used for the algorithm that adjusts markers for a change in the
+  // document. These functions cut an array of spans at a given
+  // character position, returning an array of remaining chunks (or
+  // undefined if nothing remains).
+  function markedSpansBefore(old, startCh, isInsert) {
+    var nw;
+    if (old) { for (var i = 0; i < old.length; ++i) {
+      var span = old[i], marker = span.marker;
+      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
+        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+      }
+    } }
+    return nw
+  }
+  function markedSpansAfter(old, endCh, isInsert) {
+    var nw;
+    if (old) { for (var i = 0; i < old.length; ++i) {
+      var span = old[i], marker = span.marker;
+      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
+        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+                                              span.to == null ? null : span.to - endCh));
+      }
+    } }
+    return nw
+  }
+
+  // Given a change object, compute the new set of marker spans that
+  // cover the line in which the change took place. Removes spans
+  // entirely within the change, reconnects spans belonging to the
+  // same marker that appear on both sides of the change, and cuts off
+  // spans partially within the change. Returns an array of span
+  // arrays with one element for each line in (after) the change.
+  function stretchSpansOverChange(doc, change) {
+    if (change.full) { return null }
+    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+    if (!oldFirst && !oldLast) { return null }
+
+    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+    // Get the spans that 'stick out' on both sides
+    var first = markedSpansBefore(oldFirst, startCh, isInsert);
+    var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+    // Next, merge those two ends
+    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+    if (first) {
+      // Fix up .to properties of first
+      for (var i = 0; i < first.length; ++i) {
+        var span = first[i];
+        if (span.to == null) {
+          var found = getMarkedSpanFor(last, span.marker);
+          if (!found) { span.to = startCh; }
+          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
+        }
+      }
+    }
+    if (last) {
+      // Fix up .from in last (or move them into first in case of sameLine)
+      for (var i$1 = 0; i$1 < last.length; ++i$1) {
+        var span$1 = last[i$1];
+        if (span$1.to != null) { span$1.to += offset; }
+        if (span$1.from == null) {
+          var found$1 = getMarkedSpanFor(first, span$1.marker);
+          if (!found$1) {
+            span$1.from = offset;
+            if (sameLine) { (first || (first = [])).push(span$1); }
+          }
+        } else {
+          span$1.from += offset;
+          if (sameLine) { (first || (first = [])).push(span$1); }
+        }
+      }
+    }
+    // Make sure we didn't create any zero-length spans
+    if (first) { first = clearEmptySpans(first); }
+    if (last && last != first) { last = clearEmptySpans(last); }
+
+    var newMarkers = [first];
+    if (!sameLine) {
+      // Fill gap with whole-line-spans
+      var gap = change.text.length - 2, gapMarkers;
+      if (gap > 0 && first)
+        { for (var i$2 = 0; i$2 < first.length; ++i$2)
+          { if (first[i$2].to == null)
+            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
+      for (var i$3 = 0; i$3 < gap; ++i$3)
+        { newMarkers.push(gapMarkers); }
+      newMarkers.push(last);
+    }
+    return newMarkers
+  }
+
+  // Remove spans that are empty and don't have a clearWhenEmpty
+  // option of false.
+  function clearEmptySpans(spans) {
+    for (var i = 0; i < spans.length; ++i) {
+      var span = spans[i];
+      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+        { spans.splice(i--, 1); }
+    }
+    if (!spans.length) { return null }
+    return spans
+  }
+
+  // Used to 'clip' out readOnly ranges when making a change.
+  function removeReadOnlyRanges(doc, from, to) {
+    var markers = null;
+    doc.iter(from.line, to.line + 1, function (line) {
+      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+        var mark = line.markedSpans[i].marker;
+        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+          { (markers || (markers = [])).push(mark); }
+      } }
+    });
+    if (!markers) { return null }
+    var parts = [{from: from, to: to}];
+    for (var i = 0; i < markers.length; ++i) {
+      var mk = markers[i], m = mk.find(0);
+      for (var j = 0; j < parts.length; ++j) {
+        var p = parts[j];
+        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
+        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+          { newParts.push({from: p.from, to: m.from}); }
+        if (dto > 0 || !mk.inclusiveRight && !dto)
+          { newParts.push({from: m.to, to: p.to}); }
+        parts.splice.apply(parts, newParts);
+        j += newParts.length - 3;
+      }
+    }
+    return parts
+  }
+
+  // Connect or disconnect spans from a line.
+  function detachMarkedSpans(line) {
+    var spans = line.markedSpans;
+    if (!spans) { return }
+    for (var i = 0; i < spans.length; ++i)
+      { spans[i].marker.detachLine(line); }
+    line.markedSpans = null;
+  }
+  function attachMarkedSpans(line, spans) {
+    if (!spans) { return }
+    for (var i = 0; i < spans.length; ++i)
+      { spans[i].marker.attachLine(line); }
+    line.markedSpans = spans;
+  }
+
+  // Helpers used when computing which overlapping collapsed span
+  // counts as the larger one.
+  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
+  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
+
+  // Returns a number indicating which of two overlapping collapsed
+  // spans is larger (and thus includes the other). Falls back to
+  // comparing ids when the spans cover exactly the same range.
+  function compareCollapsedMarkers(a, b) {
+    var lenDiff = a.lines.length - b.lines.length;
+    if (lenDiff != 0) { return lenDiff }
+    var aPos = a.find(), bPos = b.find();
+    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+    if (fromCmp) { return -fromCmp }
+    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+    if (toCmp) { return toCmp }
+    return b.id - a.id
+  }
+
+  // Find out whether a line ends or starts in a collapsed span. If
+  // so, return the marker for that span.
+  function collapsedSpanAtSide(line, start) {
+    var sps = sawCollapsedSpans && line.markedSpans, found;
+    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+      sp = sps[i];
+      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+        { found = sp.marker; }
+    } }
+    return found
+  }
+  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
+  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
+
+  function collapsedSpanAround(line, ch) {
+    var sps = sawCollapsedSpans && line.markedSpans, found;
+    if (sps) { for (var i = 0; i < sps.length; ++i) {
+      var sp = sps[i];
+      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
+          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
+    } }
+    return found
+  }
+
+  // Test whether there exists a collapsed span that partially
+  // overlaps (covers the start or end, but not both) of a new span.
+  // Such overlap is not allowed.
+  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+    var line = getLine(doc, lineNo);
+    var sps = sawCollapsedSpans && line.markedSpans;
+    if (sps) { for (var i = 0; i < sps.length; ++i) {
+      var sp = sps[i];
+      if (!sp.marker.collapsed) { continue }
+      var found = sp.marker.find(0);
+      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
+      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+        { return true }
+    } }
+  }
+
+  // A visual line is a line as drawn on the screen. Folding, for
+  // example, can cause multiple logical lines to appear on the same
+  // visual line. This finds the start of the visual line that the
+  // given line is part of (usually that is the line itself).
+  function visualLine(line) {
+    var merged;
+    while (merged = collapsedSpanAtStart(line))
+      { line = merged.find(-1, true).line; }
+    return line
+  }
+
+  function visualLineEnd(line) {
+    var merged;
+    while (merged = collapsedSpanAtEnd(line))
+      { line = merged.find(1, true).line; }
+    return line
+  }
+
+  // Returns an array of logical lines that continue the visual line
+  // started by the argument, or undefined if there are no such lines.
+  function visualLineContinued(line) {
+    var merged, lines;
+    while (merged = collapsedSpanAtEnd(line)) {
+      line = merged.find(1, true).line
+      ;(lines || (lines = [])).push(line);
+    }
+    return lines
+  }
+
+  // Get the line number of the start of the visual line that the
+  // given line number is part of.
+  function visualLineNo(doc, lineN) {
+    var line = getLine(doc, lineN), vis = visualLine(line);
+    if (line == vis) { return lineN }
+    return lineNo(vis)
+  }
+
+  // Get the line number of the start of the next visual line after
+  // the given line.
+  function visualLineEndNo(doc, lineN) {
+    if (lineN > doc.lastLine()) { return lineN }
+    var line = getLine(doc, lineN), merged;
+    if (!lineIsHidden(doc, line)) { return lineN }
+    while (merged = collapsedSpanAtEnd(line))
+      { line = merged.find(1, true).line; }
+    return lineNo(line) + 1
+  }
+
+  // Compute whether a line is hidden. Lines count as hidden when they
+  // are part of a visual line that starts with another line, or when
+  // they are entirely covered by collapsed, non-widget span.
+  function lineIsHidden(doc, line) {
+    var sps = sawCollapsedSpans && line.markedSpans;
+    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+      sp = sps[i];
+      if (!sp.marker.collapsed) { continue }
+      if (sp.from == null) { return true }
+      if (sp.marker.widgetNode) { continue }
+      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+        { return true }
+    } }
+  }
+  function lineIsHiddenInner(doc, line, span) {
+    if (span.to == null) {
+      var end = span.marker.find(1, true);
+      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
+    }
+    if (span.marker.inclusiveRight && span.to == line.text.length)
+      { return true }
+    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
+      sp = line.markedSpans[i];
+      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+          (sp.to == null || sp.to != span.from) &&
+          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+          lineIsHiddenInner(doc, line, sp)) { return true }
+    }
+  }
+
+  // Find the height above the given line.
+  function heightAtLine(lineObj) {
+    lineObj = visualLine(lineObj);
+
+    var h = 0, chunk = lineObj.parent;
+    for (var i = 0; i < chunk.lines.length; ++i) {
+      var line = chunk.lines[i];
+      if (line == lineObj) { break }
+      else { h += line.height; }
+    }
+    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
+        var cur = p.children[i$1];
+        if (cur == chunk) { break }
+        else { h += cur.height; }
+      }
+    }
+    return h
+  }
+
+  // Compute the character length of a line, taking into account
+  // collapsed ranges (see markText) that might hide parts, and join
+  // other lines onto it.
+  function lineLength(line) {
+    if (line.height == 0) { return 0 }
+    var len = line.text.length, merged, cur = line;
+    while (merged = collapsedSpanAtStart(cur)) {
+      var found = merged.find(0, true);
+      cur = found.from.line;
+      len += found.from.ch - found.to.ch;
+    }
+    cur = line;
+    while (merged = collapsedSpanAtEnd(cur)) {
+      var found$1 = merged.find(0, true);
+      len -= cur.text.length - found$1.from.ch;
+      cur = found$1.to.line;
+      len += cur.text.length - found$1.to.ch;
+    }
+    return len
+  }
+
+  // Find the longest line in the document.
+  function findMaxLine(cm) {
+    var d = cm.display, doc = cm.doc;
+    d.maxLine = getLine(doc, doc.first);
+    d.maxLineLength = lineLength(d.maxLine);
+    d.maxLineChanged = true;
+    doc.iter(function (line) {
+      var len = lineLength(line);
+      if (len > d.maxLineLength) {
+        d.maxLineLength = len;
+        d.maxLine = line;
+      }
+    });
+  }
+
+  // LINE DATA STRUCTURE
+
+  // Line objects. These hold state related to a line, including
+  // highlighting info (the styles array).
+  var Line = function(text, markedSpans, estimateHeight) {
+    this.text = text;
+    attachMarkedSpans(this, markedSpans);
+    this.height = estimateHeight ? estimateHeight(this) : 1;
+  };
+
+  Line.prototype.lineNo = function () { return lineNo(this) };
+  eventMixin(Line);
+
+  // Change the content (text, markers) of a line. Automatically
+  // invalidates cached information and tries to re-estimate the
+  // line's height.
+  function updateLine(line, text, markedSpans, estimateHeight) {
+    line.text = text;
+    if (line.stateAfter) { line.stateAfter = null; }
+    if (line.styles) { line.styles = null; }
+    if (line.order != null) { line.order = null; }
+    detachMarkedSpans(line);
+    attachMarkedSpans(line, markedSpans);
+    var estHeight = estimateHeight ? estimateHeight(line) : 1;
+    if (estHeight != line.height) { updateLineHeight(line, estHeight); }
+  }
+
+  // Detach a line from the document tree and its markers.
+  function cleanUpLine(line) {
+    line.parent = null;
+    detachMarkedSpans(line);
+  }
+
+  // Convert a style as returned by a mode (either null, or a string
+  // containing one or more styles) to a CSS style. This is cached,
+  // and also looks for line-wide styles.
+  var styleToClassCache = {}, styleToClassCacheWithMode = {};
+  function interpretTokenStyle(style, options) {
+    if (!style || /^\s*$/.test(style)) { return null }
+    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+    return cache[style] ||
+      (cache[style] = style.replace(/\S+/g, "cm-$&"))
+  }
+
+  // Render the DOM representation of the text of a line. Also builds
+  // up a 'line map', which points at the DOM nodes that represent
+  // specific stretches of text, and is used by the measuring code.
+  // The returned object contains the DOM node, this map, and
+  // information about line-wide styles that were set by the mode.
+  function buildLineContent(cm, lineView) {
+    // The padding-right forces the element to have a 'border', which
+    // is needed on Webkit to be able to get line-level bounding
+    // rectangles for it (in measureChar).
+    var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
+    var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
+                   col: 0, pos: 0, cm: cm,
+                   trailingSpace: false,
+                   splitSpaces: cm.getOption("lineWrapping")};
+    lineView.measure = {};
+
+    // Iterate over the logical lines that make up this visual line.
+    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
+      builder.pos = 0;
+      builder.addToken = buildToken;
+      // Optionally wire in some hacks into the token-rendering
+      // algorithm, to deal with browser quirks.
+      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
+        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
+      builder.map = [];
+      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+      if (line.styleClasses) {
+        if (line.styleClasses.bgClass)
+          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
+        if (line.styleClasses.textClass)
+          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
+      }
+
+      // Ensure at least a single node is present, for measuring.
+      if (builder.map.length == 0)
+        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }
+
+      // Store the map and a cache object for the current logical line
+      if (i == 0) {
+        lineView.measure.map = builder.map;
+        lineView.measure.cache = {};
+      } else {
+  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
+        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
+      }
+    }
+
+    // See issue #2901
+    if (webkit) {
+      var last = builder.content.lastChild;
+      if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+        { builder.content.className = "cm-tab-wrap-hack"; }
+    }
+
+    signal(cm, "renderLine", cm, lineView.line, builder.pre);
+    if (builder.pre.className)
+      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }
+
+    return builder
+  }
+
+  function defaultSpecialCharPlaceholder(ch) {
+    var token = elt("span", "\u2022", "cm-invalidchar");
+    token.title = "\\u" + ch.charCodeAt(0).toString(16);
+    token.setAttribute("aria-label", token.title);
+    return token
+  }
+
+  // Build up the DOM representation for a single token, and add it to
+  // the line map. Takes care to render special characters separately.
+  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
+    if (!text) { return }
+    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
+    var special = builder.cm.state.specialChars, mustWrap = false;
+    var content;
+    if (!special.test(text)) {
+      builder.col += text.length;
+      content = document.createTextNode(displayText);
+      builder.map.push(builder.pos, builder.pos + text.length, content);
+      if (ie && ie_version < 9) { mustWrap = true; }
+      builder.pos += text.length;
+    } else {
+      content = document.createDocumentFragment();
+      var pos = 0;
+      while (true) {
+        special.lastIndex = pos;
+        var m = special.exec(text);
+        var skipped = m ? m.index - pos : text.length - pos;
+        if (skipped) {
+          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
+          else { content.appendChild(txt); }
+          builder.map.push(builder.pos, builder.pos + skipped, txt);
+          builder.col += skipped;
+          builder.pos += skipped;
+        }
+        if (!m) { break }
+        pos += skipped + 1;
+        var txt$1 = (void 0);
+        if (m[0] == "\t") {
+          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+          txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+          txt$1.setAttribute("role", "presentation");
+          txt$1.setAttribute("cm-text", "\t");
+          builder.col += tabWidth;
+        } else if (m[0] == "\r" || m[0] == "\n") {
+          txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+          txt$1.setAttribute("cm-text", m[0]);
+          builder.col += 1;
+        } else {
+          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
+          txt$1.setAttribute("cm-text", m[0]);
+          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
+          else { content.appendChild(txt$1); }
+          builder.col += 1;
+        }
+        builder.map.push(builder.pos, builder.pos + 1, txt$1);
+        builder.pos++;
+      }
+    }
+    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
+    if (style || startStyle || endStyle || mustWrap || css || attributes) {
+      var fullStyle = style || "";
+      if (startStyle) { fullStyle += startStyle; }
+      if (endStyle) { fullStyle += endStyle; }
+      var token = elt("span", [content], fullStyle, css);
+      if (attributes) {
+        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
+          { token.setAttribute(attr, attributes[attr]); } }
+      }
+      return builder.content.appendChild(token)
+    }
+    builder.content.appendChild(content);
+  }
+
+  // Change some spaces to NBSP to prevent the browser from collapsing
+  // trailing spaces at the end of a line when rendering text (issue #1362).
+  function splitSpaces(text, trailingBefore) {
+    if (text.length > 1 && !/  /.test(text)) { return text }
+    var spaceBefore = trailingBefore, result = "";
+    for (var i = 0; i < text.length; i++) {
+      var ch = text.charAt(i);
+      if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+        { ch = "\u00a0"; }
+      result += ch;
+      spaceBefore = ch == " ";
+    }
+    return result
+  }
+
+  // Work around nonsense dimensions being reported for stretches of
+  // right-to-left text.
+  function buildTokenBadBidi(inner, order) {
+    return function (builder, text, style, startStyle, endStyle, css, attributes) {
+      style = style ? style + " cm-force-border" : "cm-force-border";
+      var start = builder.pos, end = start + text.length;
+      for (;;) {
+        // Find the part that overlaps with the start of this text
+        var part = (void 0);
+        for (var i = 0; i < order.length; i++) {
+          part = order[i];
+          if (part.to > start && part.from <= start) { break }
+        }
+        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
+        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
+        startStyle = null;
+        text = text.slice(part.to - start);
+        start = part.to;
+      }
+    }
+  }
+
+  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+    var widget = !ignoreWidget && marker.widgetNode;
+    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
+    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+      if (!widget)
+        { widget = builder.content.appendChild(document.createElement("span")); }
+      widget.setAttribute("cm-marker", marker.id);
+    }
+    if (widget) {
+      builder.cm.display.input.setUneditable(widget);
+      builder.content.appendChild(widget);
+    }
+    builder.pos += size;
+    builder.trailingSpace = false;
+  }
+
+  // Outputs a number of spans to make up a line, taking highlighting
+  // and marked text into account.
+  function insertLineContent(line, builder, styles) {
+    var spans = line.markedSpans, allText = line.text, at = 0;
+    if (!spans) {
+      for (var i$1 = 1; i$1 < styles.length; i$1+=2)
+        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
+      return
+    }
+
+    var len = allText.length, pos = 0, i = 1, text = "", style, css;
+    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
+    for (;;) {
+      if (nextChange == pos) { // Update current marker set
+        spanStyle = spanEndStyle = spanStartStyle = css = "";
+        attributes = null;
+        collapsed = null; nextChange = Infinity;
+        var foundBookmarks = [], endStyles = (void 0);
+        for (var j = 0; j < spans.length; ++j) {
+          var sp = spans[j], m = sp.marker;
+          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+            foundBookmarks.push(m);
+          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+              nextChange = sp.to;
+              spanEndStyle = "";
+            }
+            if (m.className) { spanStyle += " " + m.className; }
+            if (m.css) { css = (css ? css + ";" : "") + m.css; }
+            if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
+            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
+            // support for the old title property
+            // https://github.com/codemirror/CodeMirror/pull/5673
+            if (m.title) { (attributes || (attributes = {})).title = m.title; }
+            if (m.attributes) {
+              for (var attr in m.attributes)
+                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
+            }
+            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+              { collapsed = sp; }
+          } else if (sp.from > pos && nextChange > sp.from) {
+            nextChange = sp.from;
+          }
+        }
+        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
+          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }
+
+        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
+          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
+        if (collapsed && (collapsed.from || 0) == pos) {
+          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+                             collapsed.marker, collapsed.from == null);
+          if (collapsed.to == null) { return }
+          if (collapsed.to == pos) { collapsed = false; }
+        }
+      }
+      if (pos >= len) { break }
+
+      var upto = Math.min(len, nextChange);
+      while (true) {
+        if (text) {
+          var end = pos + text.length;
+          if (!collapsed) {
+            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
+          }
+          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
+          pos = end;
+          spanStartStyle = "";
+        }
+        text = allText.slice(at, at = styles[i++]);
+        style = interpretTokenStyle(styles[i++], builder.cm.options);
+      }
+    }
+  }
+
+
+  // These objects are used to represent the visible (currently drawn)
+  // part of the document. A LineView may correspond to multiple
+  // logical lines, if those are connected by collapsed ranges.
+  function LineView(doc, line, lineN) {
+    // The starting line
+    this.line = line;
+    // Continuing lines, if any
+    this.rest = visualLineContinued(line);
+    // Number of logical lines in this visual line
+    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+    this.node = this.text = null;
+    this.hidden = lineIsHidden(doc, line);
+  }
+
+  // Create a range of LineView objects for the given lines.
+  function buildViewArray(cm, from, to) {
+    var array = [], nextPos;
+    for (var pos = from; pos < to; pos = nextPos) {
+      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+      nextPos = pos + view.size;
+      array.push(view);
+    }
+    return array
+  }
+
+  var operationGroup = null;
+
+  function pushOperation(op) {
+    if (operationGroup) {
+      operationGroup.ops.push(op);
+    } else {
+      op.ownsGroup = operationGroup = {
+        ops: [op],
+        delayedCallbacks: []
+      };
+    }
+  }
+
+  function fireCallbacksForOps(group) {
+    // Calls delayed callbacks and cursorActivity handlers until no
+    // new ones appear
+    var callbacks = group.delayedCallbacks, i = 0;
+    do {
+      for (; i < callbacks.length; i++)
+        { callbacks[i].call(null); }
+      for (var j = 0; j < group.ops.length; j++) {
+        var op = group.ops[j];
+        if (op.cursorActivityHandlers)
+          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
+      }
+    } while (i < callbacks.length)
+  }
+
+  function finishOperation(op, endCb) {
+    var group = op.ownsGroup;
+    if (!group) { return }
+
+    try { fireCallbacksForOps(group); }
+    finally {
+      operationGroup = null;
+      endCb(group);
+    }
+  }
+
+  var orphanDelayedCallbacks = null;
+
+  // Often, we want to signal events at a point where we are in the
+  // middle of some work, but don't want the handler to start calling
+  // other methods on the editor, which might be in an inconsistent
+  // state or simply not expect any other events to happen.
+  // signalLater looks whether there are any handlers, and schedules
+  // them to be executed when the last operation ends, or, if no
+  // operation is active, when a timeout fires.
+  function signalLater(emitter, type /*, values...*/) {
+    var arr = getHandlers(emitter, type);
+    if (!arr.length) { return }
+    var args = Array.prototype.slice.call(arguments, 2), list;
+    if (operationGroup) {
+      list = operationGroup.delayedCallbacks;
+    } else if (orphanDelayedCallbacks) {
+      list = orphanDelayedCallbacks;
+    } else {
+      list = orphanDelayedCallbacks = [];
+      setTimeout(fireOrphanDelayed, 0);
+    }
+    var loop = function ( i ) {
+      list.push(function () { return arr[i].apply(null, args); });
+    };
+
+    for (var i = 0; i < arr.length; ++i)
+      loop( i );
+  }
+
+  function fireOrphanDelayed() {
+    var delayed = orphanDelayedCallbacks;
+    orphanDelayedCallbacks = null;
+    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
+  }
+
+  // When an aspect of a line changes, a string is added to
+  // lineView.changes. This updates the relevant part of the line's
+  // DOM structure.
+  function updateLineForChanges(cm, lineView, lineN, dims) {
+    for (var j = 0; j < lineView.changes.length; j++) {
+      var type = lineView.changes[j];
+      if (type == "text") { updateLineText(cm, lineView); }
+      else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
+      else if (type == "class") { updateLineClasses(cm, lineView); }
+      else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
+    }
+    lineView.changes = null;
+  }
+
+  // Lines with gutter elements, widgets or a background class need to
+  // be wrapped, and have the extra elements added to the wrapper div
+  function ensureLineWrapped(lineView) {
+    if (lineView.node == lineView.text) {
+      lineView.node = elt("div", null, null, "position: relative");
+      if (lineView.text.parentNode)
+        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
+      lineView.node.appendChild(lineView.text);
+      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
+    }
+    return lineView.node
+  }
+
+  function updateLineBackground(cm, lineView) {
+    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+    if (cls) { cls += " CodeMirror-linebackground"; }
+    if (lineView.background) {
+      if (cls) { lineView.background.className = cls; }
+      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+    } else if (cls) {
+      var wrap = ensureLineWrapped(lineView);
+      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+      cm.display.input.setUneditable(lineView.background);
+    }
+  }
+
+  // Wrapper around buildLineContent which will reuse the structure
+  // in display.externalMeasured when possible.
+  function getLineContent(cm, lineView) {
+    var ext = cm.display.externalMeasured;
+    if (ext && ext.line == lineView.line) {
+      cm.display.externalMeasured = null;
+      lineView.measure = ext.measure;
+      return ext.built
+    }
+    return buildLineContent(cm, lineView)
+  }
+
+  // Redraw the line's text. Interacts with the background and text
+  // classes because the mode may output tokens that influence these
+  // classes.
+  function updateLineText(cm, lineView) {
+    var cls = lineView.text.className;
+    var built = getLineContent(cm, lineView);
+    if (lineView.text == lineView.node) { lineView.node = built.pre; }
+    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+    lineView.text = built.pre;
+    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+      lineView.bgClass = built.bgClass;
+      lineView.textClass = built.textClass;
+      updateLineClasses(cm, lineView);
+    } else if (cls) {
+      lineView.text.className = cls;
+    }
+  }
+
+  function updateLineClasses(cm, lineView) {
+    updateLineBackground(cm, lineView);
+    if (lineView.line.wrapClass)
+      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
+    else if (lineView.node != lineView.text)
+      { lineView.node.className = ""; }
+    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+    lineView.text.className = textClass || "";
+  }
+
+  function updateLineGutter(cm, lineView, lineN, dims) {
+    if (lineView.gutter) {
+      lineView.node.removeChild(lineView.gutter);
+      lineView.gutter = null;
+    }
+    if (lineView.gutterBackground) {
+      lineView.node.removeChild(lineView.gutterBackground);
+      lineView.gutterBackground = null;
+    }
+    if (lineView.line.gutterClass) {
+      var wrap = ensureLineWrapped(lineView);
+      lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+                                      ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
+      cm.display.input.setUneditable(lineView.gutterBackground);
+      wrap.insertBefore(lineView.gutterBackground, lineView.text);
+    }
+    var markers = lineView.line.gutterMarkers;
+    if (cm.options.lineNumbers || markers) {
+      var wrap$1 = ensureLineWrapped(lineView);
+      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
+      cm.display.input.setUneditable(gutterWrap);
+      wrap$1.insertBefore(gutterWrap, lineView.text);
+      if (lineView.line.gutterClass)
+        { gutterWrap.className += " " + lineView.line.gutterClass; }
+      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+        { lineView.lineNumber = gutterWrap.appendChild(
+          elt("div", lineNumberFor(cm.options, lineN),
+              "CodeMirror-linenumber CodeMirror-gutter-elt",
+              ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
+      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
+        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
+        if (found)
+          { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
+                                     ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
+      } }
+    }
+  }
+
+  function updateLineWidgets(cm, lineView, dims) {
+    if (lineView.alignable) { lineView.alignable = null; }
+    var isWidget = classTest("CodeMirror-linewidget");
+    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
+      next = node.nextSibling;
+      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
+    }
+    insertLineWidgets(cm, lineView, dims);
+  }
+
+  // Build a line's DOM representation from scratch
+  function buildLineElement(cm, lineView, lineN, dims) {
+    var built = getLineContent(cm, lineView);
+    lineView.text = lineView.node = built.pre;
+    if (built.bgClass) { lineView.bgClass = built.bgClass; }
+    if (built.textClass) { lineView.textClass = built.textClass; }
+
+    updateLineClasses(cm, lineView);
+    updateLineGutter(cm, lineView, lineN, dims);
+    insertLineWidgets(cm, lineView, dims);
+    return lineView.node
+  }
+
+  // A lineView may contain multiple logical lines (when merged by
+  // collapsed spans). The widgets for all of them need to be drawn.
+  function insertLineWidgets(cm, lineView, dims) {
+    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
+  }
+
+  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+    if (!line.widgets) { return }
+    var wrap = ensureLineWrapped(lineView);
+    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
+      if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
+      positionLineWidget(widget, node, lineView, dims);
+      cm.display.input.setUneditable(node);
+      if (allowAbove && widget.above)
+        { wrap.insertBefore(node, lineView.gutter || lineView.text); }
+      else
+        { wrap.appendChild(node); }
+      signalLater(widget, "redraw");
+    }
+  }
+
+  function positionLineWidget(widget, node, lineView, dims) {
+    if (widget.noHScroll) {
+  (lineView.alignable || (lineView.alignable = [])).push(node);
+      var width = dims.wrapperWidth;
+      node.style.left = dims.fixedPos + "px";
+      if (!widget.coverGutter) {
+        width -= dims.gutterTotalWidth;
+        node.style.paddingLeft = dims.gutterTotalWidth + "px";
+      }
+      node.style.width = width + "px";
+    }
+    if (widget.coverGutter) {
+      node.style.zIndex = 5;
+      node.style.position = "relative";
+      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
+    }
+  }
+
+  function widgetHeight(widget) {
+    if (widget.height != null) { return widget.height }
+    var cm = widget.doc.cm;
+    if (!cm) { return 0 }
+    if (!contains(document.body, widget.node)) {
+      var parentStyle = "position: relative;";
+      if (widget.coverGutter)
+        { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
+      if (widget.noHScroll)
+        { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
+      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+    }
+    return widget.height = widget.node.parentNode.offsetHeight
+  }
+
+  // Return true when the given mouse event happened in a widget
+  function eventInWidget(display, e) {
+    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+          (n.parentNode == display.sizer && n != display.mover))
+        { return true }
+    }
+  }
+
+  // POSITION MEASUREMENT
+
+  function paddingTop(display) {return display.lineSpace.offsetTop}
+  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
+  function paddingH(display) {
+    if (display.cachedPaddingH) { return display.cachedPaddingH }
+    var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
+    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
+    return data
+  }
+
+  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
+  function displayWidth(cm) {
+    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+  }
+  function displayHeight(cm) {
+    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+  }
+
+  // Ensure the lineView.wrapping.heights array is populated. This is
+  // an array of bottom offsets for the lines that make up a drawn
+  // line. When lineWrapping is on, there might be more than one
+  // height.
+  function ensureLineHeights(cm, lineView, rect) {
+    var wrapping = cm.options.lineWrapping;
+    var curWidth = wrapping && displayWidth(cm);
+    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+      var heights = lineView.measure.heights = [];
+      if (wrapping) {
+        lineView.measure.width = curWidth;
+        var rects = lineView.text.firstChild.getClientRects();
+        for (var i = 0; i < rects.length - 1; i++) {
+          var cur = rects[i], next = rects[i + 1];
+          if (Math.abs(cur.bottom - next.bottom) > 2)
+            { heights.push((cur.bottom + next.top) / 2 - rect.top); }
+        }
+      }
+      heights.push(rect.bottom - rect.top);
+    }
+  }
+
+  // Find a line map (mapping character offsets to text nodes) and a
+  // measurement cache for the given line number. (A line view might
+  // contain multiple lines when collapsed ranges are present.)
+  function mapFromLineView(lineView, line, lineN) {
+    if (lineView.line == line)
+      { return {map: lineView.measure.map, cache: lineView.measure.cache} }
+    for (var i = 0; i < lineView.rest.length; i++)
+      { if (lineView.rest[i] == line)
+        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
+    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
+      { if (lineNo(lineView.rest[i$1]) > lineN)
+        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
+  }
+
+  // Render a line into the hidden node display.externalMeasured. Used
+  // when measurement is needed for a line that's not in the viewport.
+  function updateExternalMeasurement(cm, line) {
+    line = visualLine(line);
+    var lineN = lineNo(line);
+    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+    view.lineN = lineN;
+    var built = view.built = buildLineContent(cm, view);
+    view.text = built.pre;
+    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+    return view
+  }
+
+  // Get a {top, bottom, left, right} box (in line-local coordinates)
+  // for a given character.
+  function measureChar(cm, line, ch, bias) {
+    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
+  }
+
+  // Find a line view that corresponds to the given line number.
+  function findViewForLine(cm, lineN) {
+    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+      { return cm.display.view[findViewIndex(cm, lineN)] }
+    var ext = cm.display.externalMeasured;
+    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+      { return ext }
+  }
+
+  // Measurement can be split in two steps, the set-up work that
+  // applies to the whole line, and the measurement of the actual
+  // character. Functions like coordsChar, that need to do a lot of
+  // measurements in a row, can thus ensure that the set-up work is
+  // only done once.
+  function prepareMeasureForLine(cm, line) {
+    var lineN = lineNo(line);
+    var view = findViewForLine(cm, lineN);
+    if (view && !view.text) {
+      view = null;
+    } else if (view && view.changes) {
+      updateLineForChanges(cm, view, lineN, getDimensions(cm));
+      cm.curOp.forceUpdate = true;
+    }
+    if (!view)
+      { view = updateExternalMeasurement(cm, line); }
+
+    var info = mapFromLineView(view, line, lineN);
+    return {
+      line: line, view: view, rect: null,
+      map: info.map, cache: info.cache, before: info.before,
+      hasHeights: false
+    }
+  }
+
+  // Given a prepared measurement object, measures the position of an
+  // actual character (or fetches it from the cache).
+  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+    if (prepared.before) { ch = -1; }
+    var key = ch + (bias || ""), found;
+    if (prepared.cache.hasOwnProperty(key)) {
+      found = prepared.cache[key];
+    } else {
+      if (!prepared.rect)
+        { prepared.rect = prepared.view.text.getBoundingClientRect(); }
+      if (!prepared.hasHeights) {
+        ensureLineHeights(cm, prepared.view, prepared.rect);
+        prepared.hasHeights = true;
+      }
+      found = measureCharInner(cm, prepared, ch, bias);
+      if (!found.bogus) { prepared.cache[key] = found; }
+    }
+    return {left: found.left, right: found.right,
+            top: varHeight ? found.rtop : found.top,
+            bottom: varHeight ? found.rbottom : found.bottom}
+  }
+
+  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+  function nodeAndOffsetInLineMap(map, ch, bias) {
+    var node, start, end, collapse, mStart, mEnd;
+    // First, search the line map for the text node corresponding to,
+    // or closest to, the target character.
+    for (var i = 0; i < map.length; i += 3) {
+      mStart = map[i];
+      mEnd = map[i + 1];
+      if (ch < mStart) {
+        start = 0; end = 1;
+        collapse = "left";
+      } else if (ch < mEnd) {
+        start = ch - mStart;
+        end = start + 1;
+      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+        end = mEnd - mStart;
+        start = end - 1;
+        if (ch >= mEnd) { collapse = "right"; }
+      }
+      if (start != null) {
+        node = map[i + 2];
+        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+          { collapse = bias; }
+        if (bias == "left" && start == 0)
+          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+            node = map[(i -= 3) + 2];
+            collapse = "left";
+          } }
+        if (bias == "right" && start == mEnd - mStart)
+          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+            node = map[(i += 3) + 2];
+            collapse = "right";
+          } }
+        break
+      }
+    }
+    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
+  }
+
+  function getUsefulRect(rects, bias) {
+    var rect = nullRect;
+    if (bias == "left") { for (var i = 0; i < rects.length; i++) {
+      if ((rect = rects[i]).left != rect.right) { break }
+    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
+      if ((rect = rects[i$1]).left != rect.right) { break }
+    } }
+    return rect
+  }
+
+  function measureCharInner(cm, prepared, ch, bias) {
+    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+    var rect;
+    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
+        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
+        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+          { rect = node.parentNode.getBoundingClientRect(); }
+        else
+          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
+        if (rect.left || rect.right || start == 0) { break }
+        end = start;
+        start = start - 1;
+        collapse = "right";
+      }
+      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
+    } else { // If it is a widget, simply get the box for the whole widget.
+      if (start > 0) { collapse = bias = "right"; }
+      var rects;
+      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+        { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
+      else
+        { rect = node.getBoundingClientRect(); }
+    }
+    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+      var rSpan = node.parentNode.getClientRects()[0];
+      if (rSpan)
+        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
+      else
+        { rect = nullRect; }
+    }
+
+    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+    var mid = (rtop + rbot) / 2;
+    var heights = prepared.view.measure.heights;
+    var i = 0;
+    for (; i < heights.length - 1; i++)
+      { if (mid < heights[i]) { break } }
+    var top = i ? heights[i - 1] : 0, bot = heights[i];
+    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+                  top: top, bottom: bot};
+    if (!rect.left && !rect.right) { result.bogus = true; }
+    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+    return result
+  }
+
+  // Work around problem with bounding client rects on ranges being
+  // returned incorrectly when zoomed on IE10 and below.
+  function maybeUpdateRectForZooming(measure, rect) {
+    if (!window.screen || screen.logicalXDPI == null ||
+        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+      { return rect }
+    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+    return {left: rect.left * scaleX, right: rect.right * scaleX,
+            top: rect.top * scaleY, bottom: rect.bottom * scaleY}
+  }
+
+  function clearLineMeasurementCacheFor(lineView) {
+    if (lineView.measure) {
+      lineView.measure.cache = {};
+      lineView.measure.heights = null;
+      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+        { lineView.measure.caches[i] = {}; } }
+    }
+  }
+
+  function clearLineMeasurementCache(cm) {
+    cm.display.externalMeasure = null;
+    removeChildren(cm.display.lineMeasure);
+    for (var i = 0; i < cm.display.view.length; i++)
+      { clearLineMeasurementCacheFor(cm.display.view[i]); }
+  }
+
+  function clearCaches(cm) {
+    clearLineMeasurementCache(cm);
+    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
+    cm.display.lineNumChars = null;
+  }
+
+  function pageScrollX() {
+    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
+    // which causes page_Offset and bounding client rects to use
+    // different reference viewports and invalidate our calculations.
+    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
+    return window.pageXOffset || (document.documentElement || document.body).scrollLeft
+  }
+  function pageScrollY() {
+    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
+    return window.pageYOffset || (document.documentElement || document.body).scrollTop
+  }
+
+  function widgetTopHeight(lineObj) {
+    var height = 0;
+    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
+      { height += widgetHeight(lineObj.widgets[i]); } } }
+    return height
+  }
+
+  // Converts a {top, bottom, left, right} box from line-local
+  // coordinates into another coordinate system. Context may be one of
+  // "line", "div" (display.lineDiv), "local"./null (editor), "window",
+  // or "page".
+  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
+    if (!includeWidgets) {
+      var height = widgetTopHeight(lineObj);
+      rect.top += height; rect.bottom += height;
+    }
+    if (context == "line") { return rect }
+    if (!context) { context = "local"; }
+    var yOff = heightAtLine(lineObj);
+    if (context == "local") { yOff += paddingTop(cm.display); }
+    else { yOff -= cm.display.viewOffset; }
+    if (context == "page" || context == "window") {
+      var lOff = cm.display.lineSpace.getBoundingClientRect();
+      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+      rect.left += xOff; rect.right += xOff;
+    }
+    rect.top += yOff; rect.bottom += yOff;
+    return rect
+  }
+
+  // Coverts a box from "div" coords to another coordinate system.
+  // Context may be "window", "page", "div", or "local"./null.
+  function fromCoordSystem(cm, coords, context) {
+    if (context == "div") { return coords }
+    var left = coords.left, top = coords.top;
+    // First move into "page" coordinate system
+    if (context == "page") {
+      left -= pageScrollX();
+      top -= pageScrollY();
+    } else if (context == "local" || !context) {
+      var localBox = cm.display.sizer.getBoundingClientRect();
+      left += localBox.left;
+      top += localBox.top;
+    }
+
+    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
+  }
+
+  function charCoords(cm, pos, context, lineObj, bias) {
+    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
+    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
+  }
+
+  // Returns a box for a given cursor position, which may have an
+  // 'other' property containing the position of the secondary cursor
+  // on a bidi boundary.
+  // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
+  // and after `char - 1` in writing order of `char - 1`
+  // A cursor Pos(line, char, "after") is on the same visual line as `char`
+  // and before `char` in writing order of `char`
+  // Examples (upper-case letters are RTL, lower-case are LTR):
+  //     Pos(0, 1, ...)
+  //     before   after
+  // ab     a|b     a|b
+  // aB     a|B     aB|
+  // Ab     |Ab     A|b
+  // AB     B|A     B|A
+  // Every position after the last character on a line is considered to stick
+  // to the last character on the line.
+  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+    lineObj = lineObj || getLine(cm.doc, pos.line);
+    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
+    function get(ch, right) {
+      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+      if (right) { m.left = m.right; } else { m.right = m.left; }
+      return intoCoordSystem(cm, lineObj, m, context)
+    }
+    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
+    if (ch >= lineObj.text.length) {
+      ch = lineObj.text.length;
+      sticky = "before";
+    } else if (ch <= 0) {
+      ch = 0;
+      sticky = "after";
+    }
+    if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
+
+    function getBidi(ch, partPos, invert) {
+      var part = order[partPos], right = part.level == 1;
+      return get(invert ? ch - 1 : ch, right != invert)
+    }
+    var partPos = getBidiPartAt(order, ch, sticky);
+    var other = bidiOther;
+    var val = getBidi(ch, partPos, sticky == "before");
+    if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
+    return val
+  }
+
+  // Used to cheaply estimate the coordinates for a position. Used for
+  // intermediate scroll updates.
+  function estimateCoords(cm, pos) {
+    var left = 0;
+    pos = clipPos(cm.doc, pos);
+    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
+    var lineObj = getLine(cm.doc, pos.line);
+    var top = heightAtLine(lineObj) + paddingTop(cm.display);
+    return {left: left, right: left, top: top, bottom: top + lineObj.height}
+  }
+
+  // Positions returned by coordsChar contain some extra information.
+  // xRel is the relative x position of the input coordinates compared
+  // to the found position (so xRel > 0 means the coordinates are to
+  // the right of the character position, for example). When outside
+  // is true, that means the coordinates lie outside the line's
+  // vertical range.
+  function PosWithInfo(line, ch, sticky, outside, xRel) {
+    var pos = Pos(line, ch, sticky);
+    pos.xRel = xRel;
+    if (outside) { pos.outside = outside; }
+    return pos
+  }
+
+  // Compute the character position closest to the given coordinates.
+  // Input must be lineSpace-local ("div" coordinate system).
+  function coordsChar(cm, x, y) {
+    var doc = cm.doc;
+    y += cm.display.viewOffset;
+    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
+    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+    if (lineN > last)
+      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
+    if (x < 0) { x = 0; }
+
+    var lineObj = getLine(doc, lineN);
+    for (;;) {
+      var found = coordsCharInner(cm, lineObj, lineN, x, y);
+      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
+      if (!collapsed) { return found }
+      var rangeEnd = collapsed.find(1);
+      if (rangeEnd.line == lineN) { return rangeEnd }
+      lineObj = getLine(doc, lineN = rangeEnd.line);
+    }
+  }
+
+  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
+    y -= widgetTopHeight(lineObj);
+    var end = lineObj.text.length;
+    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
+    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
+    return {begin: begin, end: end}
+  }
+
+  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
+    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
+    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
+    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
+  }
+
+  // Returns true if the given side of a box is after the given
+  // coordinates, in top-to-bottom, left-to-right order.
+  function boxIsAfter(box, x, y, left) {
+    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
+  }
+
+  function coordsCharInner(cm, lineObj, lineNo, x, y) {
+    // Move y into line-local coordinate space
+    y -= heightAtLine(lineObj);
+    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+    // When directly calling `measureCharPrepared`, we have to adjust
+    // for the widgets at this line.
+    var widgetHeight = widgetTopHeight(lineObj);
+    var begin = 0, end = lineObj.text.length, ltr = true;
+
+    var order = getOrder(lineObj, cm.doc.direction);
+    // If the line isn't plain left-to-right text, first figure out
+    // which bidi section the coordinates fall into.
+    if (order) {
+      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
+                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);
+      ltr = part.level != 1;
+      // The awkward -1 offsets are needed because findFirst (called
+      // on these below) will treat its first bound as inclusive,
+      // second as exclusive, but we want to actually address the
+      // characters in the part's range
+      begin = ltr ? part.from : part.to - 1;
+      end = ltr ? part.to : part.from - 1;
+    }
+
+    // A binary search to find the first character whose bounding box
+    // starts after the coordinates. If we run across any whose box wrap
+    // the coordinates, store that.
+    var chAround = null, boxAround = null;
+    var ch = findFirst(function (ch) {
+      var box = measureCharPrepared(cm, preparedMeasure, ch);
+      box.top += widgetHeight; box.bottom += widgetHeight;
+      if (!boxIsAfter(box, x, y, false)) { return false }
+      if (box.top <= y && box.left <= x) {
+        chAround = ch;
+        boxAround = box;
+      }
+      return true
+    }, begin, end);
+
+    var baseX, sticky, outside = false;
+    // If a box around the coordinates was found, use that
+    if (boxAround) {
+      // Distinguish coordinates nearer to the left or right side of the box
+      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
+      ch = chAround + (atStart ? 0 : 1);
+      sticky = atStart ? "after" : "before";
+      baseX = atLeft ? boxAround.left : boxAround.right;
+    } else {
+      // (Adjust for extended bound, if necessary.)
+      if (!ltr && (ch == end || ch == begin)) { ch++; }
+      // To determine which side to associate with, get the box to the
+      // left of the character and compare it's vertical position to the
+      // coordinates
+      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
+        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
+        "after" : "before";
+      // Now get accurate coordinates for this place, in order to get a
+      // base X position
+      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
+      baseX = coords.left;
+      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
+    }
+
+    ch = skipExtendingChars(lineObj.text, ch, 1);
+    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
+  }
+
+  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
+    // Bidi parts are sorted left-to-right, and in a non-line-wrapping
+    // situation, we can take this ordering to correspond to the visual
+    // ordering. This finds the first part whose end is after the given
+    // coordinates.
+    var index = findFirst(function (i) {
+      var part = order[i], ltr = part.level != 1;
+      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
+                                     "line", lineObj, preparedMeasure), x, y, true)
+    }, 0, order.length - 1);
+    var part = order[index];
+    // If this isn't the first part, the part's start is also after
+    // the coordinates, and the coordinates aren't on the same line as
+    // that start, move one part back.
+    if (index > 0) {
+      var ltr = part.level != 1;
+      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
+                               "line", lineObj, preparedMeasure);
+      if (boxIsAfter(start, x, y, true) && start.top > y)
+        { part = order[index - 1]; }
+    }
+    return part
+  }
+
+  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
+    // In a wrapped line, rtl text on wrapping boundaries can do things
+    // that don't correspond to the ordering in our `order` array at
+    // all, so a binary search doesn't work, and we want to return a
+    // part that only spans one line so that the binary search in
+    // coordsCharInner is safe. As such, we first find the extent of the
+    // wrapped line, and then do a flat search in which we discard any
+    // spans that aren't on the line.
+    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
+    var begin = ref.begin;
+    var end = ref.end;
+    if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
+    var part = null, closestDist = null;
+    for (var i = 0; i < order.length; i++) {
+      var p = order[i];
+      if (p.from >= end || p.to <= begin) { continue }
+      var ltr = p.level != 1;
+      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
+      // Weigh against spans ending before this, so that they are only
+      // picked if nothing ends after
+      var dist = endX < x ? x - endX + 1e9 : endX - x;
+      if (!part || closestDist > dist) {
+        part = p;
+        closestDist = dist;
+      }
+    }
+    if (!part) { part = order[order.length - 1]; }
+    // Clip the part to the wrapped line.
+    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
+    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
+    return part
+  }
+
+  var measureText;
+  // Compute the default text height.
+  function textHeight(display) {
+    if (display.cachedTextHeight != null) { return display.cachedTextHeight }
+    if (measureText == null) {
+      measureText = elt("pre", null, "CodeMirror-line-like");
+      // Measure a bunch of lines, for browsers that compute
+      // fractional heights.
+      for (var i = 0; i < 49; ++i) {
+        measureText.appendChild(document.createTextNode("x"));
+        measureText.appendChild(elt("br"));
+      }
+      measureText.appendChild(document.createTextNode("x"));
+    }
+    removeChildrenAndAdd(display.measure, measureText);
+    var height = measureText.offsetHeight / 50;
+    if (height > 3) { display.cachedTextHeight = height; }
+    removeChildren(display.measure);
+    return height || 1
+  }
+
+  // Compute the default character width.
+  function charWidth(display) {
+    if (display.cachedCharWidth != null) { return display.cachedCharWidth }
+    var anchor = elt("span", "xxxxxxxxxx");
+    var pre = elt("pre", [anchor], "CodeMirror-line-like");
+    removeChildrenAndAdd(display.measure, pre);
+    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+    if (width > 2) { display.cachedCharWidth = width; }
+    return width || 10
+  }
+
+  // Do a bulk-read of the DOM positions and sizes needed to draw the
+  // view, so that we don't interleave reading and writing to the DOM.
+  function getDimensions(cm) {
+    var d = cm.display, left = {}, width = {};
+    var gutterLeft = d.gutters.clientLeft;
+    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+      var id = cm.display.gutterSpecs[i].className;
+      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
+      width[id] = n.clientWidth;
+    }
+    return {fixedPos: compensateForHScroll(d),
+            gutterTotalWidth: d.gutters.offsetWidth,
+            gutterLeft: left,
+            gutterWidth: width,
+            wrapperWidth: d.wrapper.clientWidth}
+  }
+
+  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+  // but using getBoundingClientRect to get a sub-pixel-accurate
+  // result.
+  function compensateForHScroll(display) {
+    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
+  }
+
+  // Returns a function that estimates the height of a line, to use as
+  // first approximation until the line becomes visible (and is thus
+  // properly measurable).
+  function estimateHeight(cm) {
+    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+    return function (line) {
+      if (lineIsHidden(cm.doc, line)) { return 0 }
+
+      var widgetsHeight = 0;
+      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
+        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
+      } }
+
+      if (wrapping)
+        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
+      else
+        { return widgetsHeight + th }
+    }
+  }
+
+  function estimateLineHeights(cm) {
+    var doc = cm.doc, est = estimateHeight(cm);
+    doc.iter(function (line) {
+      var estHeight = est(line);
+      if (estHeight != line.height) { updateLineHeight(line, estHeight); }
+    });
+  }
+
+  // Given a mouse event, find the corresponding position. If liberal
+  // is false, it checks whether a gutter or scrollbar was clicked,
+  // and returns null if it was. forRect is used by rectangular
+  // selections, and tries to estimate a character position even for
+  // coordinates beyond the right of the text.
+  function posFromMouse(cm, e, liberal, forRect) {
+    var display = cm.display;
+    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
+
+    var x, y, space = display.lineSpace.getBoundingClientRect();
+    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+    try { x = e.clientX - space.left; y = e.clientY - space.top; }
+    catch (e$1) { return null }
+    var coords = coordsChar(cm, x, y), line;
+    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+    }
+    return coords
+  }
+
+  // Find the view element corresponding to a given line. Return null
+  // when the line isn't visible.
+  function findViewIndex(cm, n) {
+    if (n >= cm.display.viewTo) { return null }
+    n -= cm.display.viewFrom;
+    if (n < 0) { return null }
+    var view = cm.display.view;
+    for (var i = 0; i < view.length; i++) {
+      n -= view[i].size;
+      if (n < 0) { return i }
+    }
+  }
+
+  // Updates the display.view data structure for a given change to the
+  // document. From and to are in pre-change coordinates. Lendiff is
+  // the amount of lines added or subtracted by the change. This is
+  // used for changes that span multiple lines, or change the way
+  // lines are divided into visual lines. regLineChange (below)
+  // registers single-line changes.
+  function regChange(cm, from, to, lendiff) {
+    if (from == null) { from = cm.doc.first; }
+    if (to == null) { to = cm.doc.first + cm.doc.size; }
+    if (!lendiff) { lendiff = 0; }
+
+    var display = cm.display;
+    if (lendiff && to < display.viewTo &&
+        (display.updateLineNumbers == null || display.updateLineNumbers > from))
+      { display.updateLineNumbers = from; }
+
+    cm.curOp.viewChanged = true;
+
+    if (from >= display.viewTo) { // Change after
+      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+        { resetView(cm); }
+    } else if (to <= display.viewFrom) { // Change before
+      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+        resetView(cm);
+      } else {
+        display.viewFrom += lendiff;
+        display.viewTo += lendiff;
+      }
+    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+      resetView(cm);
+    } else if (from <= display.viewFrom) { // Top overlap
+      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+      if (cut) {
+        display.view = display.view.slice(cut.index);
+        display.viewFrom = cut.lineN;
+        display.viewTo += lendiff;
+      } else {
+        resetView(cm);
+      }
+    } else if (to >= display.viewTo) { // Bottom overlap
+      var cut$1 = viewCuttingPoint(cm, from, from, -1);
+      if (cut$1) {
+        display.view = display.view.slice(0, cut$1.index);
+        display.viewTo = cut$1.lineN;
+      } else {
+        resetView(cm);
+      }
+    } else { // Gap in the middle
+      var cutTop = viewCuttingPoint(cm, from, from, -1);
+      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+      if (cutTop && cutBot) {
+        display.view = display.view.slice(0, cutTop.index)
+          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+          .concat(display.view.slice(cutBot.index));
+        display.viewTo += lendiff;
+      } else {
+        resetView(cm);
+      }
+    }
+
+    var ext = display.externalMeasured;
+    if (ext) {
+      if (to < ext.lineN)
+        { ext.lineN += lendiff; }
+      else if (from < ext.lineN + ext.size)
+        { display.externalMeasured = null; }
+    }
+  }
+
+  // Register a change to a single line. Type must be one of "text",
+  // "gutter", "class", "widget"
+  function regLineChange(cm, line, type) {
+    cm.curOp.viewChanged = true;
+    var display = cm.display, ext = cm.display.externalMeasured;
+    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+      { display.externalMeasured = null; }
+
+    if (line < display.viewFrom || line >= display.viewTo) { return }
+    var lineView = display.view[findViewIndex(cm, line)];
+    if (lineView.node == null) { return }
+    var arr = lineView.changes || (lineView.changes = []);
+    if (indexOf(arr, type) == -1) { arr.push(type); }
+  }
+
+  // Clear the view.
+  function resetView(cm) {
+    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+    cm.display.view = [];
+    cm.display.viewOffset = 0;
+  }
+
+  function viewCuttingPoint(cm, oldN, newN, dir) {
+    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+      { return {index: index, lineN: newN} }
+    var n = cm.display.viewFrom;
+    for (var i = 0; i < index; i++)
+      { n += view[i].size; }
+    if (n != oldN) {
+      if (dir > 0) {
+        if (index == view.length - 1) { return null }
+        diff = (n + view[index].size) - oldN;
+        index++;
+      } else {
+        diff = n - oldN;
+      }
+      oldN += diff; newN += diff;
+    }
+    while (visualLineNo(cm.doc, newN) != newN) {
+      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
+      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+      index += dir;
+    }
+    return {index: index, lineN: newN}
+  }
+
+  // Force the view to cover a given range, adding empty view element
+  // or clipping off existing ones as needed.
+  function adjustView(cm, from, to) {
+    var display = cm.display, view = display.view;
+    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+      display.view = buildViewArray(cm, from, to);
+      display.viewFrom = from;
+    } else {
+      if (display.viewFrom > from)
+        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
+      else if (display.viewFrom < from)
+        { display.view = display.view.slice(findViewIndex(cm, from)); }
+      display.viewFrom = from;
+      if (display.viewTo < to)
+        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
+      else if (display.viewTo > to)
+        { display.view = display.view.slice(0, findViewIndex(cm, to)); }
+    }
+    display.viewTo = to;
+  }
+
+  // Count the number of lines in the view whose DOM representation is
+  // out of date (or nonexistent).
+  function countDirtyView(cm) {
+    var view = cm.display.view, dirty = 0;
+    for (var i = 0; i < view.length; i++) {
+      var lineView = view[i];
+      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
+    }
+    return dirty
+  }
+
+  function updateSelection(cm) {
+    cm.display.input.showSelection(cm.display.input.prepareSelection());
+  }
+
+  function prepareSelection(cm, primary) {
+    if ( primary === void 0 ) primary = true;
+
+    var doc = cm.doc, result = {};
+    var curFragment = result.cursors = document.createDocumentFragment();
+    var selFragment = result.selection = document.createDocumentFragment();
+
+    for (var i = 0; i < doc.sel.ranges.length; i++) {
+      if (!primary && i == doc.sel.primIndex) { continue }
+      var range = doc.sel.ranges[i];
+      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
+      var collapsed = range.empty();
+      if (collapsed || cm.options.showCursorWhenSelecting)
+        { drawSelectionCursor(cm, range.head, curFragment); }
+      if (!collapsed)
+        { drawSelectionRange(cm, range, selFragment); }
+    }
+    return result
+  }
+
+  // Draws a cursor for the given range
+  function drawSelectionCursor(cm, head, output) {
+    var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+    cursor.style.left = pos.left + "px";
+    cursor.style.top = pos.top + "px";
+    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+    if (pos.other) {
+      // Secondary cursor, shown when on a 'jump' in bi-directional text
+      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+      otherCursor.style.display = "";
+      otherCursor.style.left = pos.other.left + "px";
+      otherCursor.style.top = pos.other.top + "px";
+      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+    }
+  }
+
+  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
+
+  // Draws the given range as a highlighted selection
+  function drawSelectionRange(cm, range, output) {
+    var display = cm.display, doc = cm.doc;
+    var fragment = document.createDocumentFragment();
+    var padding = paddingH(cm.display), leftSide = padding.left;
+    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+    var docLTR = doc.direction == "ltr";
+
+    function add(left, top, width, bottom) {
+      if (top < 0) { top = 0; }
+      top = Math.round(top);
+      bottom = Math.round(bottom);
+      fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
+    }
+
+    function drawForLine(line, fromArg, toArg) {
+      var lineObj = getLine(doc, line);
+      var lineLen = lineObj.text.length;
+      var start, end;
+      function coords(ch, bias) {
+        return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
+      }
+
+      function wrapX(pos, dir, side) {
+        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
+        var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
+        var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
+        return coords(ch, prop)[prop]
+      }
+
+      var order = getOrder(lineObj, doc.direction);
+      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
+        var ltr = dir == "ltr";
+        var fromPos = coords(from, ltr ? "left" : "right");
+        var toPos = coords(to - 1, ltr ? "right" : "left");
+
+        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
+        var first = i == 0, last = !order || i == order.length - 1;
+        if (toPos.top - fromPos.top <= 3) { // Single line
+          var openLeft = (docLTR ? openStart : openEnd) && first;
+          var openRight = (docLTR ? openEnd : openStart) && last;
+          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
+          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
+          add(left, fromPos.top, right - left, fromPos.bottom);
+        } else { // Multiple lines
+          var topLeft, topRight, botLeft, botRight;
+          if (ltr) {
+            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
+            topRight = docLTR ? rightSide : wrapX(from, dir, "before");
+            botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
+            botRight = docLTR && openEnd && last ? rightSide : toPos.right;
+          } else {
+            topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
+            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
+            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
+            botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
+          }
+          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
+          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
+          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
+        }
+
+        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
+        if (cmpCoords(toPos, start) < 0) { start = toPos; }
+        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
+        if (cmpCoords(toPos, end) < 0) { end = toPos; }
+      });
+      return {start: start, end: end}
+    }
+
+    var sFrom = range.from(), sTo = range.to();
+    if (sFrom.line == sTo.line) {
+      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+    } else {
+      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+      var singleVLine = visualLine(fromLine) == visualLine(toLine);
+      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+      if (singleVLine) {
+        if (leftEnd.top < rightStart.top - 2) {
+          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+        } else {
+          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+        }
+      }
+      if (leftEnd.bottom < rightStart.top)
+        { add(leftSide, leftEnd.bottom, null, rightStart.top); }
+    }
+
+    output.appendChild(fragment);
+  }
+
+  // Cursor-blinking
+  function restartBlink(cm) {
+    if (!cm.state.focused) { return }
+    var display = cm.display;
+    clearInterval(display.blinker);
+    var on = true;
+    display.cursorDiv.style.visibility = "";
+    if (cm.options.cursorBlinkRate > 0)
+      { display.blinker = setInterval(function () {
+        if (!cm.hasFocus()) { onBlur(cm); }
+        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+      }, cm.options.cursorBlinkRate); }
+    else if (cm.options.cursorBlinkRate < 0)
+      { display.cursorDiv.style.visibility = "hidden"; }
+  }
+
+  function ensureFocus(cm) {
+    if (!cm.hasFocus()) {
+      cm.display.input.focus();
+      if (!cm.state.focused) { onFocus(cm); }
+    }
+  }
+
+  function delayBlurEvent(cm) {
+    cm.state.delayingBlurEvent = true;
+    setTimeout(function () { if (cm.state.delayingBlurEvent) {
+      cm.state.delayingBlurEvent = false;
+      if (cm.state.focused) { onBlur(cm); }
+    } }, 100);
+  }
+
+  function onFocus(cm, e) {
+    if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; }
+
+    if (cm.options.readOnly == "nocursor") { return }
+    if (!cm.state.focused) {
+      signal(cm, "focus", cm, e);
+      cm.state.focused = true;
+      addClass(cm.display.wrapper, "CodeMirror-focused");
+      // This test prevents this from firing when a context
+      // menu is closed (since the input reset would kill the
+      // select-all detection hack)
+      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+        cm.display.input.reset();
+        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
+      }
+      cm.display.input.receivedFocus();
+    }
+    restartBlink(cm);
+  }
+  function onBlur(cm, e) {
+    if (cm.state.delayingBlurEvent) { return }
+
+    if (cm.state.focused) {
+      signal(cm, "blur", cm, e);
+      cm.state.focused = false;
+      rmClass(cm.display.wrapper, "CodeMirror-focused");
+    }
+    clearInterval(cm.display.blinker);
+    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
+  }
+
+  // Read the actual heights of the rendered lines, and update their
+  // stored heights to match.
+  function updateHeightsInViewport(cm) {
+    var display = cm.display;
+    var prevBottom = display.lineDiv.offsetTop;
+    for (var i = 0; i < display.view.length; i++) {
+      var cur = display.view[i], wrapping = cm.options.lineWrapping;
+      var height = (void 0), width = 0;
+      if (cur.hidden) { continue }
+      if (ie && ie_version < 8) {
+        var bot = cur.node.offsetTop + cur.node.offsetHeight;
+        height = bot - prevBottom;
+        prevBottom = bot;
+      } else {
+        var box = cur.node.getBoundingClientRect();
+        height = box.bottom - box.top;
+        // Check that lines don't extend past the right of the current
+        // editor width
+        if (!wrapping && cur.text.firstChild)
+          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
+      }
+      var diff = cur.line.height - height;
+      if (diff > .005 || diff < -.005) {
+        updateLineHeight(cur.line, height);
+        updateWidgetHeight(cur.line);
+        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
+          { updateWidgetHeight(cur.rest[j]); } }
+      }
+      if (width > cm.display.sizerWidth) {
+        var chWidth = Math.ceil(width / charWidth(cm.display));
+        if (chWidth > cm.display.maxLineLength) {
+          cm.display.maxLineLength = chWidth;
+          cm.display.maxLine = cur.line;
+          cm.display.maxLineChanged = true;
+        }
+      }
+    }
+  }
+
+  // Read and store the height of line widgets associated with the
+  // given line.
+  function updateWidgetHeight(line) {
+    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
+      var w = line.widgets[i], parent = w.node.parentNode;
+      if (parent) { w.height = parent.offsetHeight; }
+    } }
+  }
+
+  // Compute the lines that are visible in a given viewport (defaults
+  // the the current scroll position). viewport may contain top,
+  // height, and ensure (see op.scrollToPos) properties.
+  function visibleLines(display, doc, viewport) {
+    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+    top = Math.floor(top - paddingTop(display));
+    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+    // forces those lines into the viewport (if possible).
+    if (viewport && viewport.ensure) {
+      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+      if (ensureFrom < from) {
+        from = ensureFrom;
+        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+        to = ensureTo;
+      }
+    }
+    return {from: from, to: Math.max(to, from + 1)}
+  }
+
+  // SCROLLING THINGS INTO VIEW
+
+  // If an editor sits on the top or bottom of the window, partially
+  // scrolled out of view, this ensures that the cursor is visible.
+  function maybeScrollWindow(cm, rect) {
+    if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
+
+    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+    if (rect.top + box.top < 0) { doScroll = true; }
+    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
+    if (doScroll != null && !phantom) {
+      var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
+      cm.display.lineSpace.appendChild(scrollNode);
+      scrollNode.scrollIntoView(doScroll);
+      cm.display.lineSpace.removeChild(scrollNode);
+    }
+  }
+
+  // Scroll a given position into view (immediately), verifying that
+  // it actually became visible (as line heights are accurately
+  // measured, the position of something may 'drift' during drawing).
+  function scrollPosIntoView(cm, pos, end, margin) {
+    if (margin == null) { margin = 0; }
+    var rect;
+    if (!cm.options.lineWrapping && pos == end) {
+      // Set pos and end to the cursor positions around the character pos sticks to
+      // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
+      // If pos == Pos(_, 0, "before"), pos and end are unchanged
+      pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
+      end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
+    }
+    for (var limit = 0; limit < 5; limit++) {
+      var changed = false;
+      var coords = cursorCoords(cm, pos);
+      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+      rect = {left: Math.min(coords.left, endCoords.left),
+              top: Math.min(coords.top, endCoords.top) - margin,
+              right: Math.max(coords.left, endCoords.left),
+              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
+      var scrollPos = calculateScrollPos(cm, rect);
+      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+      if (scrollPos.scrollTop != null) {
+        updateScrollTop(cm, scrollPos.scrollTop);
+        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
+      }
+      if (scrollPos.scrollLeft != null) {
+        setScrollLeft(cm, scrollPos.scrollLeft);
+        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
+      }
+      if (!changed) { break }
+    }
+    return rect
+  }
+
+  // Scroll a given set of coordinates into view (immediately).
+  function scrollIntoView(cm, rect) {
+    var scrollPos = calculateScrollPos(cm, rect);
+    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
+    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
+  }
+
+  // Calculate a new scroll position needed to scroll the given
+  // rectangle into view. Returns an object with scrollTop and
+  // scrollLeft properties. When these are undefined, the
+  // vertical/horizontal position does not need to be adjusted.
+  function calculateScrollPos(cm, rect) {
+    var display = cm.display, snapMargin = textHeight(cm.display);
+    if (rect.top < 0) { rect.top = 0; }
+    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+    var screen = displayHeight(cm), result = {};
+    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
+    var docBottom = cm.doc.height + paddingVert(display);
+    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
+    if (rect.top < screentop) {
+      result.scrollTop = atTop ? 0 : rect.top;
+    } else if (rect.bottom > screentop + screen) {
+      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
+      if (newTop != screentop) { result.scrollTop = newTop; }
+    }
+
+    var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth;
+    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace;
+    var screenw = displayWidth(cm) - display.gutters.offsetWidth;
+    var tooWide = rect.right - rect.left > screenw;
+    if (tooWide) { rect.right = rect.left + screenw; }
+    if (rect.left < 10)
+      { result.scrollLeft = 0; }
+    else if (rect.left < screenleft)
+      { result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); }
+    else if (rect.right > screenw + screenleft - 3)
+      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
+    return result
+  }
+
+  // Store a relative adjustment to the scroll position in the current
+  // operation (to be applied when the operation finishes).
+  function addToScrollTop(cm, top) {
+    if (top == null) { return }
+    resolveScrollToPos(cm);
+    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+  }
+
+  // Make sure that at the end of the operation the current cursor is
+  // shown.
+  function ensureCursorVisible(cm) {
+    resolveScrollToPos(cm);
+    var cur = cm.getCursor();
+    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
+  }
+
+  function scrollToCoords(cm, x, y) {
+    if (x != null || y != null) { resolveScrollToPos(cm); }
+    if (x != null) { cm.curOp.scrollLeft = x; }
+    if (y != null) { cm.curOp.scrollTop = y; }
+  }
+
+  function scrollToRange(cm, range) {
+    resolveScrollToPos(cm);
+    cm.curOp.scrollToPos = range;
+  }
+
+  // When an operation has its scrollToPos property set, and another
+  // scroll action is applied before the end of the operation, this
+  // 'simulates' scrolling that position into view in a cheap way, so
+  // that the effect of intermediate scroll commands is not ignored.
+  function resolveScrollToPos(cm) {
+    var range = cm.curOp.scrollToPos;
+    if (range) {
+      cm.curOp.scrollToPos = null;
+      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+      scrollToCoordsRange(cm, from, to, range.margin);
+    }
+  }
+
+  function scrollToCoordsRange(cm, from, to, margin) {
+    var sPos = calculateScrollPos(cm, {
+      left: Math.min(from.left, to.left),
+      top: Math.min(from.top, to.top) - margin,
+      right: Math.max(from.right, to.right),
+      bottom: Math.max(from.bottom, to.bottom) + margin
+    });
+    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
+  }
+
+  // Sync the scrollable area and scrollbars, ensure the viewport
+  // covers the visible area.
+  function updateScrollTop(cm, val) {
+    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
+    if (!gecko) { updateDisplaySimple(cm, {top: val}); }
+    setScrollTop(cm, val, true);
+    if (gecko) { updateDisplaySimple(cm); }
+    startWorker(cm, 100);
+  }
+
+  function setScrollTop(cm, val, forceScroll) {
+    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
+    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
+    cm.doc.scrollTop = val;
+    cm.display.scrollbars.setScrollTop(val);
+    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
+  }
+
+  // Sync scroller and scrollbar, ensure the gutter elements are
+  // aligned.
+  function setScrollLeft(cm, val, isScroller, forceScroll) {
+    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
+    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
+    cm.doc.scrollLeft = val;
+    alignHorizontally(cm);
+    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
+    cm.display.scrollbars.setScrollLeft(val);
+  }
+
+  // SCROLLBARS
+
+  // Prepare DOM reads needed to update the scrollbars. Done in one
+  // shot to minimize update/measure roundtrips.
+  function measureForScrollbars(cm) {
+    var d = cm.display, gutterW = d.gutters.offsetWidth;
+    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+    return {
+      clientHeight: d.scroller.clientHeight,
+      viewHeight: d.wrapper.clientHeight,
+      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+      viewWidth: d.wrapper.clientWidth,
+      barLeft: cm.options.fixedGutter ? gutterW : 0,
+      docHeight: docH,
+      scrollHeight: docH + scrollGap(cm) + d.barHeight,
+      nativeBarWidth: d.nativeBarWidth,
+      gutterWidth: gutterW
+    }
+  }
+
+  var NativeScrollbars = function(place, scroll, cm) {
+    this.cm = cm;
+    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+    vert.tabIndex = horiz.tabIndex = -1;
+    place(vert); place(horiz);
+
+    on(vert, "scroll", function () {
+      if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
+    });
+    on(horiz, "scroll", function () {
+      if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
+    });
+
+    this.checkedZeroWidth = false;
+    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
+  };
+
+  NativeScrollbars.prototype.update = function (measure) {
+    var needsH = measure.scrollWidth > measure.clientWidth + 1;
+    var needsV = measure.scrollHeight > measure.clientHeight + 1;
+    var sWidth = measure.nativeBarWidth;
+
+    if (needsV) {
+      this.vert.style.display = "block";
+      this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+      // A bug in IE8 can cause this value to be negative, so guard it.
+      this.vert.firstChild.style.height =
+        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+    } else {
+      this.vert.style.display = "";
+      this.vert.firstChild.style.height = "0";
+    }
+
+    if (needsH) {
+      this.horiz.style.display = "block";
+      this.horiz.style.right = needsV ? sWidth + "px" : "0";
+      this.horiz.style.left = measure.barLeft + "px";
+      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+      this.horiz.firstChild.style.width =
+        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+    } else {
+      this.horiz.style.display = "";
+      this.horiz.firstChild.style.width = "0";
+    }
+
+    if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+      if (sWidth == 0) { this.zeroWidthHack(); }
+      this.checkedZeroWidth = true;
+    }
+
+    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
+  };
+
+  NativeScrollbars.prototype.setScrollLeft = function (pos) {
+    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
+    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
+  };
+
+  NativeScrollbars.prototype.setScrollTop = function (pos) {
+    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
+    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
+  };
+
+  NativeScrollbars.prototype.zeroWidthHack = function () {
+    var w = mac && !mac_geMountainLion ? "12px" : "18px";
+    this.horiz.style.height = this.vert.style.width = w;
+    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
+    this.disableHoriz = new Delayed;
+    this.disableVert = new Delayed;
+  };
+
+  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
+    bar.style.pointerEvents = "auto";
+    function maybeDisable() {
+      // To find out whether the scrollbar is still visible, we
+      // check whether the element under the pixel in the bottom
+      // right corner of the scrollbar box is the scrollbar box
+      // itself (when the bar is still visible) or its filler child
+      // (when the bar is hidden). If it is still visible, we keep
+      // it enabled, if it's hidden, we disable pointer events.
+      var box = bar.getBoundingClientRect();
+      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
+          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
+      if (elt != bar) { bar.style.pointerEvents = "none"; }
+      else { delay.set(1000, maybeDisable); }
+    }
+    delay.set(1000, maybeDisable);
+  };
+
+  NativeScrollbars.prototype.clear = function () {
+    var parent = this.horiz.parentNode;
+    parent.removeChild(this.horiz);
+    parent.removeChild(this.vert);
+  };
+
+  var NullScrollbars = function () {};
+
+  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
+  NullScrollbars.prototype.setScrollLeft = function () {};
+  NullScrollbars.prototype.setScrollTop = function () {};
+  NullScrollbars.prototype.clear = function () {};
+
+  function updateScrollbars(cm, measure) {
+    if (!measure) { measure = measureForScrollbars(cm); }
+    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+    updateScrollbarsInner(cm, measure);
+    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+        { updateHeightsInViewport(cm); }
+      updateScrollbarsInner(cm, measureForScrollbars(cm));
+      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+    }
+  }
+
+  // Re-synchronize the fake scrollbars with the actual size of the
+  // content.
+  function updateScrollbarsInner(cm, measure) {
+    var d = cm.display;
+    var sizes = d.scrollbars.update(measure);
+
+    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+    d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";
+
+    if (sizes.right && sizes.bottom) {
+      d.scrollbarFiller.style.display = "block";
+      d.scrollbarFiller.style.height = sizes.bottom + "px";
+      d.scrollbarFiller.style.width = sizes.right + "px";
+    } else { d.scrollbarFiller.style.display = ""; }
+    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+      d.gutterFiller.style.display = "block";
+      d.gutterFiller.style.height = sizes.bottom + "px";
+      d.gutterFiller.style.width = measure.gutterWidth + "px";
+    } else { d.gutterFiller.style.display = ""; }
+  }
+
+  var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+  function initScrollbars(cm) {
+    if (cm.display.scrollbars) {
+      cm.display.scrollbars.clear();
+      if (cm.display.scrollbars.addClass)
+        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
+    }
+
+    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
+      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+      // Prevent clicks in the scrollbars from killing focus
+      on(node, "mousedown", function () {
+        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
+      });
+      node.setAttribute("cm-not-content", "true");
+    }, function (pos, axis) {
+      if (axis == "horizontal") { setScrollLeft(cm, pos); }
+      else { updateScrollTop(cm, pos); }
+    }, cm);
+    if (cm.display.scrollbars.addClass)
+      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
+  }
+
+  // Operations are used to wrap a series of changes to the editor
+  // state in such a way that each change won't have to update the
+  // cursor and display (which would be awkward, slow, and
+  // error-prone). Instead, display updates are batched and then all
+  // combined and executed at once.
+
+  var nextOpId = 0;
+  // Start a new operation.
+  function startOperation(cm) {
+    cm.curOp = {
+      cm: cm,
+      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
+      startHeight: cm.doc.height, // Used to detect need to update scrollbar
+      forceUpdate: false,      // Used to force a redraw
+      updateInput: 0,       // Whether to reset the input textarea
+      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
+      changeObjs: null,        // Accumulated changes, for firing change events
+      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+      selectionChanged: false, // Whether the selection needs to be redrawn
+      updateMaxLine: false,    // Set when the widest line needs to be determined anew
+      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+      scrollToPos: null,       // Used to scroll to a specific position
+      focus: false,
+      id: ++nextOpId           // Unique ID
+    };
+    pushOperation(cm.curOp);
+  }
+
+  // Finish an operation, updating the display and signalling delayed events
+  function endOperation(cm) {
+    var op = cm.curOp;
+    if (op) { finishOperation(op, function (group) {
+      for (var i = 0; i < group.ops.length; i++)
+        { group.ops[i].cm.curOp = null; }
+      endOperations(group);
+    }); }
+  }
+
+  // The DOM updates done when an operation finishes are batched so
+  // that the minimum number of relayouts are required.
+  function endOperations(group) {
+    var ops = group.ops;
+    for (var i = 0; i < ops.length; i++) // Read DOM
+      { endOperation_R1(ops[i]); }
+    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
+      { endOperation_W1(ops[i$1]); }
+    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
+      { endOperation_R2(ops[i$2]); }
+    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
+      { endOperation_W2(ops[i$3]); }
+    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
+      { endOperation_finish(ops[i$4]); }
+  }
+
+  function endOperation_R1(op) {
+    var cm = op.cm, display = cm.display;
+    maybeClipScrollbars(cm);
+    if (op.updateMaxLine) { findMaxLine(cm); }
+
+    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+                         op.scrollToPos.to.line >= display.viewTo) ||
+      display.maxLineChanged && cm.options.lineWrapping;
+    op.update = op.mustUpdate &&
+      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+  }
+
+  function endOperation_W1(op) {
+    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+  }
+
+  function endOperation_R2(op) {
+    var cm = op.cm, display = cm.display;
+    if (op.updatedDisplay) { updateHeightsInViewport(cm); }
+
+    op.barMeasure = measureForScrollbars(cm);
+
+    // If the max line changed since it was last measured, measure it,
+    // and ensure the document's width matches it.
+    // updateDisplay_W2 will use these properties to do the actual resizing
+    if (display.maxLineChanged && !cm.options.lineWrapping) {
+      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+      cm.display.sizerWidth = op.adjustWidthTo;
+      op.barMeasure.scrollWidth =
+        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+    }
+
+    if (op.updatedDisplay || op.selectionChanged)
+      { op.preparedSelection = display.input.prepareSelection(); }
+  }
+
+  function endOperation_W2(op) {
+    var cm = op.cm;
+
+    if (op.adjustWidthTo != null) {
+      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+      if (op.maxScrollLeft < cm.doc.scrollLeft)
+        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
+      cm.display.maxLineChanged = false;
+    }
+
+    var takeFocus = op.focus && op.focus == activeElt();
+    if (op.preparedSelection)
+      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
+    if (op.updatedDisplay || op.startHeight != cm.doc.height)
+      { updateScrollbars(cm, op.barMeasure); }
+    if (op.updatedDisplay)
+      { setDocumentHeight(cm, op.barMeasure); }
+
+    if (op.selectionChanged) { restartBlink(cm); }
+
+    if (cm.state.focused && op.updateInput)
+      { cm.display.input.reset(op.typing); }
+    if (takeFocus) { ensureFocus(op.cm); }
+  }
+
+  function endOperation_finish(op) {
+    var cm = op.cm, display = cm.display, doc = cm.doc;
+
+    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }
+
+    // Abort mouse wheel delta measurement, when scrolling explicitly
+    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+      { display.wheelStartX = display.wheelStartY = null; }
+
+    // Propagate the scroll position to the actual DOM scroller
+    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }
+
+    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
+    // If we need to scroll a specific position into view, do so.
+    if (op.scrollToPos) {
+      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+      maybeScrollWindow(cm, rect);
+    }
+
+    // Fire events for markers that are hidden/unidden by editing or
+    // undoing
+    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+    if (hidden) { for (var i = 0; i < hidden.length; ++i)
+      { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
+    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
+      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }
+
+    if (display.wrapper.offsetHeight)
+      { doc.scrollTop = cm.display.scroller.scrollTop; }
+
+    // Fire change events, and delayed event handlers
+    if (op.changeObjs)
+      { signal(cm, "changes", cm, op.changeObjs); }
+    if (op.update)
+      { op.update.finish(); }
+  }
+
+  // Run the given function in an operation
+  function runInOp(cm, f) {
+    if (cm.curOp) { return f() }
+    startOperation(cm);
+    try { return f() }
+    finally { endOperation(cm); }
+  }
+  // Wraps a function in an operation. Returns the wrapped function.
+  function operation(cm, f) {
+    return function() {
+      if (cm.curOp) { return f.apply(cm, arguments) }
+      startOperation(cm);
+      try { return f.apply(cm, arguments) }
+      finally { endOperation(cm); }
+    }
+  }
+  // Used to add methods to editor and doc instances, wrapping them in
+  // operations.
+  function methodOp(f) {
+    return function() {
+      if (this.curOp) { return f.apply(this, arguments) }
+      startOperation(this);
+      try { return f.apply(this, arguments) }
+      finally { endOperation(this); }
+    }
+  }
+  function docMethodOp(f) {
+    return function() {
+      var cm = this.cm;
+      if (!cm || cm.curOp) { return f.apply(this, arguments) }
+      startOperation(cm);
+      try { return f.apply(this, arguments) }
+      finally { endOperation(cm); }
+    }
+  }
+
+  // HIGHLIGHT WORKER
+
+  function startWorker(cm, time) {
+    if (cm.doc.highlightFrontier < cm.display.viewTo)
+      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
+  }
+
+  function highlightWorker(cm) {
+    var doc = cm.doc;
+    if (doc.highlightFrontier >= cm.display.viewTo) { return }
+    var end = +new Date + cm.options.workTime;
+    var context = getContextBefore(cm, doc.highlightFrontier);
+    var changedLines = [];
+
+    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
+      if (context.line >= cm.display.viewFrom) { // Visible
+        var oldStyles = line.styles;
+        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
+        var highlighted = highlightLine(cm, line, context, true);
+        if (resetState) { context.state = resetState; }
+        line.styles = highlighted.styles;
+        var oldCls = line.styleClasses, newCls = highlighted.classes;
+        if (newCls) { line.styleClasses = newCls; }
+        else if (oldCls) { line.styleClasses = null; }
+        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
+        if (ischange) { changedLines.push(context.line); }
+        line.stateAfter = context.save();
+        context.nextLine();
+      } else {
+        if (line.text.length <= cm.options.maxHighlightLength)
+          { processLine(cm, line.text, context); }
+        line.stateAfter = context.line % 5 == 0 ? context.save() : null;
+        context.nextLine();
+      }
+      if (+new Date > end) {
+        startWorker(cm, cm.options.workDelay);
+        return true
+      }
+    });
+    doc.highlightFrontier = context.line;
+    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
+    if (changedLines.length) { runInOp(cm, function () {
+      for (var i = 0; i < changedLines.length; i++)
+        { regLineChange(cm, changedLines[i], "text"); }
+    }); }
+  }
+
+  // DISPLAY DRAWING
+
+  var DisplayUpdate = function(cm, viewport, force) {
+    var display = cm.display;
+
+    this.viewport = viewport;
+    // Store some values that we'll need later (but don't want to force a relayout for)
+    this.visible = visibleLines(display, cm.doc, viewport);
+    this.editorIsHidden = !display.wrapper.offsetWidth;
+    this.wrapperHeight = display.wrapper.clientHeight;
+    this.wrapperWidth = display.wrapper.clientWidth;
+    this.oldDisplayWidth = displayWidth(cm);
+    this.force = force;
+    this.dims = getDimensions(cm);
+    this.events = [];
+  };
+
+  DisplayUpdate.prototype.signal = function (emitter, type) {
+    if (hasHandler(emitter, type))
+      { this.events.push(arguments); }
+  };
+  DisplayUpdate.prototype.finish = function () {
+    for (var i = 0; i < this.events.length; i++)
+      { signal.apply(null, this.events[i]); }
+  };
+
+  function maybeClipScrollbars(cm) {
+    var display = cm.display;
+    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+      display.heightForcer.style.height = scrollGap(cm) + "px";
+      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+      display.scrollbarsClipped = true;
+    }
+  }
+
+  function selectionSnapshot(cm) {
+    if (cm.hasFocus()) { return null }
+    var active = activeElt();
+    if (!active || !contains(cm.display.lineDiv, active)) { return null }
+    var result = {activeElt: active};
+    if (window.getSelection) {
+      var sel = window.getSelection();
+      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
+        result.anchorNode = sel.anchorNode;
+        result.anchorOffset = sel.anchorOffset;
+        result.focusNode = sel.focusNode;
+        result.focusOffset = sel.focusOffset;
+      }
+    }
+    return result
+  }
+
+  function restoreSelection(snapshot) {
+    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
+    snapshot.activeElt.focus();
+    if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
+        snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
+      var sel = window.getSelection(), range = document.createRange();
+      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
+      range.collapse(false);
+      sel.removeAllRanges();
+      sel.addRange(range);
+      sel.extend(snapshot.focusNode, snapshot.focusOffset);
+    }
+  }
+
+  // Does the actual updating of the line display. Bails out
+  // (returning false) when there is nothing to be done and forced is
+  // false.
+  function updateDisplayIfNeeded(cm, update) {
+    var display = cm.display, doc = cm.doc;
+
+    if (update.editorIsHidden) {
+      resetView(cm);
+      return false
+    }
+
+    // Bail out if the visible area is already rendered and nothing changed.
+    if (!update.force &&
+        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+        display.renderedView == display.view && countDirtyView(cm) == 0)
+      { return false }
+
+    if (maybeUpdateLineNumberWidth(cm)) {
+      resetView(cm);
+      update.dims = getDimensions(cm);
+    }
+
+    // Compute a suitable new viewport (from & to)
+    var end = doc.first + doc.size;
+    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
+    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
+    if (sawCollapsedSpans) {
+      from = visualLineNo(cm.doc, from);
+      to = visualLineEndNo(cm.doc, to);
+    }
+
+    var different = from != display.viewFrom || to != display.viewTo ||
+      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+    adjustView(cm, from, to);
+
+    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+    // Position the mover div to align with the current scroll position
+    cm.display.mover.style.top = display.viewOffset + "px";
+
+    var toUpdate = countDirtyView(cm);
+    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+      { return false }
+
+    // For big changes, we hide the enclosing element during the
+    // update, since that speeds up the operations on most browsers.
+    var selSnapshot = selectionSnapshot(cm);
+    if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
+    patchDisplay(cm, display.updateLineNumbers, update.dims);
+    if (toUpdate > 4) { display.lineDiv.style.display = ""; }
+    display.renderedView = display.view;
+    // There might have been a widget with a focused element that got
+    // hidden or updated, if so re-focus it.
+    restoreSelection(selSnapshot);
+
+    // Prevent selection and cursors from interfering with the scroll
+    // width and height.
+    removeChildren(display.cursorDiv);
+    removeChildren(display.selectionDiv);
+    display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+    if (different) {
+      display.lastWrapHeight = update.wrapperHeight;
+      display.lastWrapWidth = update.wrapperWidth;
+      startWorker(cm, 400);
+    }
+
+    display.updateLineNumbers = null;
+
+    return true
+  }
+
+  function postUpdateDisplay(cm, update) {
+    var viewport = update.viewport;
+
+    for (var first = true;; first = false) {
+      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+        // Clip forced viewport to actual scrollable area.
+        if (viewport && viewport.top != null)
+          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
+        // Updated line heights might result in the drawn area not
+        // actually covering the viewport. Keep looping until it does.
+        update.visible = visibleLines(cm.display, cm.doc, viewport);
+        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+          { break }
+      } else if (first) {
+        update.visible = visibleLines(cm.display, cm.doc, viewport);
+      }
+      if (!updateDisplayIfNeeded(cm, update)) { break }
+      updateHeightsInViewport(cm);
+      var barMeasure = measureForScrollbars(cm);
+      updateSelection(cm);
+      updateScrollbars(cm, barMeasure);
+      setDocumentHeight(cm, barMeasure);
+      update.force = false;
+    }
+
+    update.signal(cm, "update", cm);
+    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+    }
+  }
+
+  function updateDisplaySimple(cm, viewport) {
+    var update = new DisplayUpdate(cm, viewport);
+    if (updateDisplayIfNeeded(cm, update)) {
+      updateHeightsInViewport(cm);
+      postUpdateDisplay(cm, update);
+      var barMeasure = measureForScrollbars(cm);
+      updateSelection(cm);
+      updateScrollbars(cm, barMeasure);
+      setDocumentHeight(cm, barMeasure);
+      update.finish();
+    }
+  }
+
+  // Sync the actual display DOM structure with display.view, removing
+  // nodes for lines that are no longer in view, and creating the ones
+  // that are not there yet, and updating the ones that are out of
+  // date.
+  function patchDisplay(cm, updateNumbersFrom, dims) {
+    var display = cm.display, lineNumbers = cm.options.lineNumbers;
+    var container = display.lineDiv, cur = container.firstChild;
+
+    function rm(node) {
+      var next = node.nextSibling;
+      // Works around a throw-scroll bug in OS X Webkit
+      if (webkit && mac && cm.display.currentWheelTarget == node)
+        { node.style.display = "none"; }
+      else
+        { node.parentNode.removeChild(node); }
+      return next
+    }
+
+    var view = display.view, lineN = display.viewFrom;
+    // Loop over the elements in the view, syncing cur (the DOM nodes
+    // in display.lineDiv) with the view as we go.
+    for (var i = 0; i < view.length; i++) {
+      var lineView = view[i];
+      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+        var node = buildLineElement(cm, lineView, lineN, dims);
+        container.insertBefore(node, cur);
+      } else { // Already drawn
+        while (cur != lineView.node) { cur = rm(cur); }
+        var updateNumber = lineNumbers && updateNumbersFrom != null &&
+          updateNumbersFrom <= lineN && lineView.lineNumber;
+        if (lineView.changes) {
+          if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
+          updateLineForChanges(cm, lineView, lineN, dims);
+        }
+        if (updateNumber) {
+          removeChildren(lineView.lineNumber);
+          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+        }
+        cur = lineView.node.nextSibling;
+      }
+      lineN += lineView.size;
+    }
+    while (cur) { cur = rm(cur); }
+  }
+
+  function updateGutterSpace(display) {
+    var width = display.gutters.offsetWidth;
+    display.sizer.style.marginLeft = width + "px";
+  }
+
+  function setDocumentHeight(cm, measure) {
+    cm.display.sizer.style.minHeight = measure.docHeight + "px";
+    cm.display.heightForcer.style.top = measure.docHeight + "px";
+    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
+  }
+
+  // Re-align line numbers and gutter marks to compensate for
+  // horizontal scrolling.
+  function alignHorizontally(cm) {
+    var display = cm.display, view = display.view;
+    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
+    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+    var gutterW = display.gutters.offsetWidth, left = comp + "px";
+    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
+      if (cm.options.fixedGutter) {
+        if (view[i].gutter)
+          { view[i].gutter.style.left = left; }
+        if (view[i].gutterBackground)
+          { view[i].gutterBackground.style.left = left; }
+      }
+      var align = view[i].alignable;
+      if (align) { for (var j = 0; j < align.length; j++)
+        { align[j].style.left = left; } }
+    } }
+    if (cm.options.fixedGutter)
+      { display.gutters.style.left = (comp + gutterW) + "px"; }
+  }
+
+  // Used to ensure that the line number gutter is still the right
+  // size for the current document size. Returns true when an update
+  // is needed.
+  function maybeUpdateLineNumberWidth(cm) {
+    if (!cm.options.lineNumbers) { return false }
+    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+    if (last.length != display.lineNumChars) {
+      var test = display.measure.appendChild(elt("div", [elt("div", last)],
+                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
+      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+      display.lineGutter.style.width = "";
+      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+      display.lineNumWidth = display.lineNumInnerWidth + padding;
+      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+      display.lineGutter.style.width = display.lineNumWidth + "px";
+      updateGutterSpace(cm.display);
+      return true
+    }
+    return false
+  }
+
+  function getGutters(gutters, lineNumbers) {
+    var result = [], sawLineNumbers = false;
+    for (var i = 0; i < gutters.length; i++) {
+      var name = gutters[i], style = null;
+      if (typeof name != "string") { style = name.style; name = name.className; }
+      if (name == "CodeMirror-linenumbers") {
+        if (!lineNumbers) { continue }
+        else { sawLineNumbers = true; }
+      }
+      result.push({className: name, style: style});
+    }
+    if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
+    return result
+  }
+
+  // Rebuild the gutter elements, ensure the margin to the left of the
+  // code matches their width.
+  function renderGutters(display) {
+    var gutters = display.gutters, specs = display.gutterSpecs;
+    removeChildren(gutters);
+    display.lineGutter = null;
+    for (var i = 0; i < specs.length; ++i) {
+      var ref = specs[i];
+      var className = ref.className;
+      var style = ref.style;
+      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
+      if (style) { gElt.style.cssText = style; }
+      if (className == "CodeMirror-linenumbers") {
+        display.lineGutter = gElt;
+        gElt.style.width = (display.lineNumWidth || 1) + "px";
+      }
+    }
+    gutters.style.display = specs.length ? "" : "none";
+    updateGutterSpace(display);
+  }
+
+  function updateGutters(cm) {
+    renderGutters(cm.display);
+    regChange(cm);
+    alignHorizontally(cm);
+  }
+
+  // The display handles the DOM integration, both for input reading
+  // and content drawing. It holds references to DOM nodes and
+  // display-related state.
+
+  function Display(place, doc, input, options) {
+    var d = this;
+    this.input = input;
+
+    // Covers bottom-right square when both scrollbars are present.
+    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+    d.scrollbarFiller.setAttribute("cm-not-content", "true");
+    // Covers bottom of gutter when coverGutterNextToScrollbar is on
+    // and h scrollbar is present.
+    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+    d.gutterFiller.setAttribute("cm-not-content", "true");
+    // Will contain the actual code, positioned to cover the viewport.
+    d.lineDiv = eltP("div", null, "CodeMirror-code");
+    // Elements are added to these to represent selection and cursors.
+    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+    // A visibility: hidden element used to find the size of things.
+    d.measure = elt("div", null, "CodeMirror-measure");
+    // When lines outside of the viewport are measured, they are drawn in this.
+    d.lineMeasure = elt("div", null, "CodeMirror-measure");
+    // Wraps everything that needs to exist inside the vertically-padded coordinate system
+    d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+                      null, "position: relative; outline: none");
+    var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
+    // Moved around its parent to cover visible view.
+    d.mover = elt("div", [lines], null, "position: relative");
+    // Set to the height of the document, allowing scrolling.
+    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+    d.sizerWidth = null;
+    // Behavior of elts with overflow: auto and padding is
+    // inconsistent across browsers. This is used to ensure the
+    // scrollable area is big enough.
+    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+    // Will contain the gutters, if any.
+    d.gutters = elt("div", null, "CodeMirror-gutters");
+    d.lineGutter = null;
+    // Actual scrollable element.
+    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+    d.scroller.setAttribute("tabIndex", "-1");
+    // The element in which the editor lives.
+    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }
+
+    if (place) {
+      if (place.appendChild) { place.appendChild(d.wrapper); }
+      else { place(d.wrapper); }
+    }
+
+    // Current rendered range (may be bigger than the view window).
+    d.viewFrom = d.viewTo = doc.first;
+    d.reportedViewFrom = d.reportedViewTo = doc.first;
+    // Information about the rendered lines.
+    d.view = [];
+    d.renderedView = null;
+    // Holds info about a single rendered line when it was rendered
+    // for measurement, while not in view.
+    d.externalMeasured = null;
+    // Empty space (in pixels) above the view
+    d.viewOffset = 0;
+    d.lastWrapHeight = d.lastWrapWidth = 0;
+    d.updateLineNumbers = null;
+
+    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+    d.scrollbarsClipped = false;
+
+    // Used to only resize the line number gutter when necessary (when
+    // the amount of lines crosses a boundary that makes its width change)
+    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+    // Set to true when a non-horizontal-scrolling line widget is
+    // added. As an optimization, line widget aligning is skipped when
+    // this is false.
+    d.alignWidgets = false;
+
+    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+    // Tracks the maximum line length so that the horizontal scrollbar
+    // can be kept static when scrolling.
+    d.maxLine = null;
+    d.maxLineLength = 0;
+    d.maxLineChanged = false;
+
+    // Used for measuring wheel scrolling granularity
+    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+    // True when shift is held down.
+    d.shift = false;
+
+    // Used to track whether anything happened since the context menu
+    // was opened.
+    d.selForContextMenu = null;
+
+    d.activeTouch = null;
+
+    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
+    renderGutters(d);
+
+    input.init(d);
+  }
+
+  // Since the delta values reported on mouse wheel events are
+  // unstandardized between browsers and even browser versions, and
+  // generally horribly unpredictable, this code starts by measuring
+  // the scroll effect that the first few mouse wheel events have,
+  // and, from that, detects the way it can convert deltas to pixel
+  // offsets afterwards.
+  //
+  // The reason we want to know the amount a wheel event will scroll
+  // is that it gives us a chance to update the display before the
+  // actual scrolling happens, reducing flickering.
+
+  var wheelSamples = 0, wheelPixelsPerUnit = null;
+  // Fill in a browser-detected starting value on browsers where we
+  // know one. These don't have to be accurate -- the result of them
+  // being wrong would just be a slight flicker on the first wheel
+  // scroll (if it is large enough).
+  if (ie) { wheelPixelsPerUnit = -.53; }
+  else if (gecko) { wheelPixelsPerUnit = 15; }
+  else if (chrome) { wheelPixelsPerUnit = -.7; }
+  else if (safari) { wheelPixelsPerUnit = -1/3; }
+
+  function wheelEventDelta(e) {
+    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
+    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
+    else if (dy == null) { dy = e.wheelDelta; }
+    return {x: dx, y: dy}
+  }
+  function wheelEventPixels(e) {
+    var delta = wheelEventDelta(e);
+    delta.x *= wheelPixelsPerUnit;
+    delta.y *= wheelPixelsPerUnit;
+    return delta
+  }
+
+  function onScrollWheel(cm, e) {
+    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+    var display = cm.display, scroll = display.scroller;
+    // Quit if there's nothing to scroll here
+    var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+    var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+    if (!(dx && canScrollX || dy && canScrollY)) { return }
+
+    // Webkit browsers on OS X abort momentum scrolls when the target
+    // of the scroll event is removed from the scrollable element.
+    // This hack (see related code in patchDisplay) makes sure the
+    // element is kept around.
+    if (dy && mac && webkit) {
+      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+        for (var i = 0; i < view.length; i++) {
+          if (view[i].node == cur) {
+            cm.display.currentWheelTarget = cur;
+            break outer
+          }
+        }
+      }
+    }
+
+    // On some browsers, horizontal scrolling will cause redraws to
+    // happen before the gutter has been realigned, causing it to
+    // wriggle around in a most unseemly way. When we have an
+    // estimated pixels/delta value, we just handle horizontal
+    // scrolling entirely here. It'll be slightly off from native, but
+    // better than glitching out.
+    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+      if (dy && canScrollY)
+        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
+      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
+      // Only prevent default scrolling if vertical scrolling is
+      // actually possible. Otherwise, it causes vertical scroll
+      // jitter on OSX trackpads when deltaX is small and deltaY
+      // is large (issue #3579)
+      if (!dy || (dy && canScrollY))
+        { e_preventDefault(e); }
+      display.wheelStartX = null; // Abort measurement, if in progress
+      return
+    }
+
+    // 'Project' the visible viewport to cover the area that is being
+    // scrolled into view (if we know enough to estimate it).
+    if (dy && wheelPixelsPerUnit != null) {
+      var pixels = dy * wheelPixelsPerUnit;
+      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
+      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
+      updateDisplaySimple(cm, {top: top, bottom: bot});
+    }
+
+    if (wheelSamples < 20) {
+      if (display.wheelStartX == null) {
+        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+        display.wheelDX = dx; display.wheelDY = dy;
+        setTimeout(function () {
+          if (display.wheelStartX == null) { return }
+          var movedX = scroll.scrollLeft - display.wheelStartX;
+          var movedY = scroll.scrollTop - display.wheelStartY;
+          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+            (movedX && display.wheelDX && movedX / display.wheelDX);
+          display.wheelStartX = display.wheelStartY = null;
+          if (!sample) { return }
+          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+          ++wheelSamples;
+        }, 200);
+      } else {
+        display.wheelDX += dx; display.wheelDY += dy;
+      }
+    }
+  }
+
+  // Selection objects are immutable. A new one is created every time
+  // the selection changes. A selection is one or more non-overlapping
+  // (and non-touching) ranges, sorted, and an integer that indicates
+  // which one is the primary selection (the one that's scrolled into
+  // view, that getCursor returns, etc).
+  var Selection = function(ranges, primIndex) {
+    this.ranges = ranges;
+    this.primIndex = primIndex;
+  };
+
+  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
+
+  Selection.prototype.equals = function (other) {
+    if (other == this) { return true }
+    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
+    for (var i = 0; i < this.ranges.length; i++) {
+      var here = this.ranges[i], there = other.ranges[i];
+      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
+    }
+    return true
+  };
+
+  Selection.prototype.deepCopy = function () {
+    var out = [];
+    for (var i = 0; i < this.ranges.length; i++)
+      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
+    return new Selection(out, this.primIndex)
+  };
+
+  Selection.prototype.somethingSelected = function () {
+    for (var i = 0; i < this.ranges.length; i++)
+      { if (!this.ranges[i].empty()) { return true } }
+    return false
+  };
+
+  Selection.prototype.contains = function (pos, end) {
+    if (!end) { end = pos; }
+    for (var i = 0; i < this.ranges.length; i++) {
+      var range = this.ranges[i];
+      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+        { return i }
+    }
+    return -1
+  };
+
+  var Range = function(anchor, head) {
+    this.anchor = anchor; this.head = head;
+  };
+
+  Range.prototype.from = function () { return minPos(this.anchor, this.head) };
+  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
+  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
+
+  // Take an unsorted, potentially overlapping set of ranges, and
+  // build a selection out of it. 'Consumes' ranges array (modifying
+  // it).
+  function normalizeSelection(cm, ranges, primIndex) {
+    var mayTouch = cm && cm.options.selectionsMayTouch;
+    var prim = ranges[primIndex];
+    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
+    primIndex = indexOf(ranges, prim);
+    for (var i = 1; i < ranges.length; i++) {
+      var cur = ranges[i], prev = ranges[i - 1];
+      var diff = cmp(prev.to(), cur.from());
+      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
+        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+        if (i <= primIndex) { --primIndex; }
+        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+      }
+    }
+    return new Selection(ranges, primIndex)
+  }
+
+  function simpleSelection(anchor, head) {
+    return new Selection([new Range(anchor, head || anchor)], 0)
+  }
+
+  // Compute the position of the end of a change (its 'to' property
+  // refers to the pre-change end).
+  function changeEnd(change) {
+    if (!change.text) { return change.to }
+    return Pos(change.from.line + change.text.length - 1,
+               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
+  }
+
+  // Adjust a position to refer to the post-change position of the
+  // same text, or the end of the change if the change covers it.
+  function adjustForChange(pos, change) {
+    if (cmp(pos, change.from) < 0) { return pos }
+    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
+
+    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
+    return Pos(line, ch)
+  }
+
+  function computeSelAfterChange(doc, change) {
+    var out = [];
+    for (var i = 0; i < doc.sel.ranges.length; i++) {
+      var range = doc.sel.ranges[i];
+      out.push(new Range(adjustForChange(range.anchor, change),
+                         adjustForChange(range.head, change)));
+    }
+    return normalizeSelection(doc.cm, out, doc.sel.primIndex)
+  }
+
+  function offsetPos(pos, old, nw) {
+    if (pos.line == old.line)
+      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
+    else
+      { return Pos(nw.line + (pos.line - old.line), pos.ch) }
+  }
+
+  // Used by replaceSelections to allow moving the selection to the
+  // start or around the replaced test. Hint may be "start" or "around".
+  function computeReplacedSel(doc, changes, hint) {
+    var out = [];
+    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+    for (var i = 0; i < changes.length; i++) {
+      var change = changes[i];
+      var from = offsetPos(change.from, oldPrev, newPrev);
+      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+      oldPrev = change.to;
+      newPrev = to;
+      if (hint == "around") {
+        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+        out[i] = new Range(inv ? to : from, inv ? from : to);
+      } else {
+        out[i] = new Range(from, from);
+      }
+    }
+    return new Selection(out, doc.sel.primIndex)
+  }
+
+  // Used to get the editor into a consistent state again when options change.
+
+  function loadMode(cm) {
+    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
+    resetModeState(cm);
+  }
+
+  function resetModeState(cm) {
+    cm.doc.iter(function (line) {
+      if (line.stateAfter) { line.stateAfter = null; }
+      if (line.styles) { line.styles = null; }
+    });
+    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
+    startWorker(cm, 100);
+    cm.state.modeGen++;
+    if (cm.curOp) { regChange(cm); }
+  }
+
+  // DOCUMENT DATA STRUCTURE
+
+  // By default, updates that start and end at the beginning of a line
+  // are treated specially, in order to make the association of line
+  // widgets and marker elements with the text behave more intuitive.
+  function isWholeLineUpdate(doc, change) {
+    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+  }
+
+  // Perform a change on the document data structure.
+  function updateDoc(doc, change, markedSpans, estimateHeight) {
+    function spansFor(n) {return markedSpans ? markedSpans[n] : null}
+    function update(line, text, spans) {
+      updateLine(line, text, spans, estimateHeight);
+      signalLater(line, "change", line, change);
+    }
+    function linesFor(start, end) {
+      var result = [];
+      for (var i = start; i < end; ++i)
+        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
+      return result
+    }
+
+    var from = change.from, to = change.to, text = change.text;
+    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+    // Adjust the line structure
+    if (change.full) {
+      doc.insert(0, linesFor(0, text.length));
+      doc.remove(text.length, doc.size - text.length);
+    } else if (isWholeLineUpdate(doc, change)) {
+      // This is a whole-line replace. Treated specially to make
+      // sure line objects move the way they are supposed to.
+      var added = linesFor(0, text.length - 1);
+      update(lastLine, lastLine.text, lastSpans);
+      if (nlines) { doc.remove(from.line, nlines); }
+      if (added.length) { doc.insert(from.line, added); }
+    } else if (firstLine == lastLine) {
+      if (text.length == 1) {
+        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+      } else {
+        var added$1 = linesFor(1, text.length - 1);
+        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
+        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+        doc.insert(from.line + 1, added$1);
+      }
+    } else if (text.length == 1) {
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+      doc.remove(from.line + 1, nlines);
+    } else {
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+      var added$2 = linesFor(1, text.length - 1);
+      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
+      doc.insert(from.line + 1, added$2);
+    }
+
+    signalLater(doc, "change", doc, change);
+  }
+
+  // Call f for all linked documents.
+  function linkedDocs(doc, f, sharedHistOnly) {
+    function propagate(doc, skip, sharedHist) {
+      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
+        var rel = doc.linked[i];
+        if (rel.doc == skip) { continue }
+        var shared = sharedHist && rel.sharedHist;
+        if (sharedHistOnly && !shared) { continue }
+        f(rel.doc, shared);
+        propagate(rel.doc, doc, shared);
+      } }
+    }
+    propagate(doc, null, true);
+  }
+
+  // Attach a document to an editor.
+  function attachDoc(cm, doc) {
+    if (doc.cm) { throw new Error("This document is already in use.") }
+    cm.doc = doc;
+    doc.cm = cm;
+    estimateLineHeights(cm);
+    loadMode(cm);
+    setDirectionClass(cm);
+    if (!cm.options.lineWrapping) { findMaxLine(cm); }
+    cm.options.mode = doc.modeOption;
+    regChange(cm);
+  }
+
+  function setDirectionClass(cm) {
+  (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
+  }
+
+  function directionChanged(cm) {
+    runInOp(cm, function () {
+      setDirectionClass(cm);
+      regChange(cm);
+    });
+  }
+
+  function History(startGen) {
+    // Arrays of change events and selections. Doing something adds an
+    // event to done and clears undo. Undoing moves events from done
+    // to undone, redoing moves them in the other direction.
+    this.done = []; this.undone = [];
+    this.undoDepth = Infinity;
+    // Used to track when changes can be merged into a single undo
+    // event
+    this.lastModTime = this.lastSelTime = 0;
+    this.lastOp = this.lastSelOp = null;
+    this.lastOrigin = this.lastSelOrigin = null;
+    // Used by the isClean() method
+    this.generation = this.maxGeneration = startGen || 1;
+  }
+
+  // Create a history change event from an updateDoc-style change
+  // object.
+  function historyChangeFromChange(doc, change) {
+    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
+    return histChange
+  }
+
+  // Pop all selection events off the end of a history array. Stop at
+  // a change event.
+  function clearSelectionEvents(array) {
+    while (array.length) {
+      var last = lst(array);
+      if (last.ranges) { array.pop(); }
+      else { break }
+    }
+  }
+
+  // Find the top change event in the history. Pop off selection
+  // events that are in the way.
+  function lastChangeEvent(hist, force) {
+    if (force) {
+      clearSelectionEvents(hist.done);
+      return lst(hist.done)
+    } else if (hist.done.length && !lst(hist.done).ranges) {
+      return lst(hist.done)
+    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+      hist.done.pop();
+      return lst(hist.done)
+    }
+  }
+
+  // Register a change in the history. Merges changes that are within
+  // a single operation, or are close together with an origin that
+  // allows merging (starting with "+") into a single event.
+  function addChangeToHistory(doc, change, selAfter, opId) {
+    var hist = doc.history;
+    hist.undone.length = 0;
+    var time = +new Date, cur;
+    var last;
+
+    if ((hist.lastOp == opId ||
+         hist.lastOrigin == change.origin && change.origin &&
+         ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
+          change.origin.charAt(0) == "*")) &&
+        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+      // Merge this change into the last event
+      last = lst(cur.changes);
+      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+        // Optimized case for simple insertion -- don't want to add
+        // new changesets for every character typed
+        last.to = changeEnd(change);
+      } else {
+        // Add new sub-event
+        cur.changes.push(historyChangeFromChange(doc, change));
+      }
+    } else {
+      // Can not be merged, start a new event.
+      var before = lst(hist.done);
+      if (!before || !before.ranges)
+        { pushSelectionToHistory(doc.sel, hist.done); }
+      cur = {changes: [historyChangeFromChange(doc, change)],
+             generation: hist.generation};
+      hist.done.push(cur);
+      while (hist.done.length > hist.undoDepth) {
+        hist.done.shift();
+        if (!hist.done[0].ranges) { hist.done.shift(); }
+      }
+    }
+    hist.done.push(selAfter);
+    hist.generation = ++hist.maxGeneration;
+    hist.lastModTime = hist.lastSelTime = time;
+    hist.lastOp = hist.lastSelOp = opId;
+    hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+    if (!last) { signal(doc, "historyAdded"); }
+  }
+
+  function selectionEventCanBeMerged(doc, origin, prev, sel) {
+    var ch = origin.charAt(0);
+    return ch == "*" ||
+      ch == "+" &&
+      prev.ranges.length == sel.ranges.length &&
+      prev.somethingSelected() == sel.somethingSelected() &&
+      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
+  }
+
+  // Called whenever the selection changes, sets the new selection as
+  // the pending selection in the history, and pushes the old pending
+  // selection into the 'done' array when it was significantly
+  // different (in number of selected ranges, emptiness, or time).
+  function addSelectionToHistory(doc, sel, opId, options) {
+    var hist = doc.history, origin = options && options.origin;
+
+    // A new event is started when the previous origin does not match
+    // the current, or the origins don't allow matching. Origins
+    // starting with * are always merged, those starting with + are
+    // merged when similar and close together in time.
+    if (opId == hist.lastSelOp ||
+        (origin && hist.lastSelOrigin == origin &&
+         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+      { hist.done[hist.done.length - 1] = sel; }
+    else
+      { pushSelectionToHistory(sel, hist.done); }
+
+    hist.lastSelTime = +new Date;
+    hist.lastSelOrigin = origin;
+    hist.lastSelOp = opId;
+    if (options && options.clearRedo !== false)
+      { clearSelectionEvents(hist.undone); }
+  }
+
+  function pushSelectionToHistory(sel, dest) {
+    var top = lst(dest);
+    if (!(top && top.ranges && top.equals(sel)))
+      { dest.push(sel); }
+  }
+
+  // Used to store marked span information in the history.
+  function attachLocalSpans(doc, change, from, to) {
+    var existing = change["spans_" + doc.id], n = 0;
+    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
+      if (line.markedSpans)
+        { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
+      ++n;
+    });
+  }
+
+  // When un/re-doing restores text containing marked spans, those
+  // that have been explicitly cleared should not be restored.
+  function removeClearedSpans(spans) {
+    if (!spans) { return null }
+    var out;
+    for (var i = 0; i < spans.length; ++i) {
+      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
+      else if (out) { out.push(spans[i]); }
+    }
+    return !out ? spans : out.length ? out : null
+  }
+
+  // Retrieve and filter the old marked spans stored in a change event.
+  function getOldSpans(doc, change) {
+    var found = change["spans_" + doc.id];
+    if (!found) { return null }
+    var nw = [];
+    for (var i = 0; i < change.text.length; ++i)
+      { nw.push(removeClearedSpans(found[i])); }
+    return nw
+  }
+
+  // Used for un/re-doing changes from the history. Combines the
+  // result of computing the existing spans with the set of spans that
+  // existed in the history (so that deleting around a span and then
+  // undoing brings back the span).
+  function mergeOldSpans(doc, change) {
+    var old = getOldSpans(doc, change);
+    var stretched = stretchSpansOverChange(doc, change);
+    if (!old) { return stretched }
+    if (!stretched) { return old }
+
+    for (var i = 0; i < old.length; ++i) {
+      var oldCur = old[i], stretchCur = stretched[i];
+      if (oldCur && stretchCur) {
+        spans: for (var j = 0; j < stretchCur.length; ++j) {
+          var span = stretchCur[j];
+          for (var k = 0; k < oldCur.length; ++k)
+            { if (oldCur[k].marker == span.marker) { continue spans } }
+          oldCur.push(span);
+        }
+      } else if (stretchCur) {
+        old[i] = stretchCur;
+      }
+    }
+    return old
+  }
+
+  // Used both to provide a JSON-safe object in .getHistory, and, when
+  // detaching a document, to split the history in two
+  function copyHistoryArray(events, newGroup, instantiateSel) {
+    var copy = [];
+    for (var i = 0; i < events.length; ++i) {
+      var event = events[i];
+      if (event.ranges) {
+        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+        continue
+      }
+      var changes = event.changes, newChanges = [];
+      copy.push({changes: newChanges});
+      for (var j = 0; j < changes.length; ++j) {
+        var change = changes[j], m = (void 0);
+        newChanges.push({from: change.from, to: change.to, text: change.text});
+        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
+          if (indexOf(newGroup, Number(m[1])) > -1) {
+            lst(newChanges)[prop] = change[prop];
+            delete change[prop];
+          }
+        } } }
+      }
+    }
+    return copy
+  }
+
+  // The 'scroll' parameter given to many of these indicated whether
+  // the new cursor position should be scrolled into view after
+  // modifying the selection.
+
+  // If shift is held or the extend flag is set, extends a range to
+  // include a given position (and optionally a second position).
+  // Otherwise, simply returns the range between the given positions.
+  // Used for cursor motion and such.
+  function extendRange(range, head, other, extend) {
+    if (extend) {
+      var anchor = range.anchor;
+      if (other) {
+        var posBefore = cmp(head, anchor) < 0;
+        if (posBefore != (cmp(other, anchor) < 0)) {
+          anchor = head;
+          head = other;
+        } else if (posBefore != (cmp(head, other) < 0)) {
+          head = other;
+        }
+      }
+      return new Range(anchor, head)
+    } else {
+      return new Range(other || head, head)
+    }
+  }
+
+  // Extend the primary selection range, discard the rest.
+  function extendSelection(doc, head, other, options, extend) {
+    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
+    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
+  }
+
+  // Extend all selections (pos is an array of selections with length
+  // equal the number of selections)
+  function extendSelections(doc, heads, options) {
+    var out = [];
+    var extend = doc.cm && (doc.cm.display.shift || doc.extend);
+    for (var i = 0; i < doc.sel.ranges.length; i++)
+      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
+    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
+    setSelection(doc, newSel, options);
+  }
+
+  // Updates a single range in the selection.
+  function replaceOneSelection(doc, i, range, options) {
+    var ranges = doc.sel.ranges.slice(0);
+    ranges[i] = range;
+    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
+  }
+
+  // Reset the selection to a single range.
+  function setSimpleSelection(doc, anchor, head, options) {
+    setSelection(doc, simpleSelection(anchor, head), options);
+  }
+
+  // Give beforeSelectionChange handlers a change to influence a
+  // selection update.
+  function filterSelectionChange(doc, sel, options) {
+    var obj = {
+      ranges: sel.ranges,
+      update: function(ranges) {
+        this.ranges = [];
+        for (var i = 0; i < ranges.length; i++)
+          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+                                     clipPos(doc, ranges[i].head)); }
+      },
+      origin: options && options.origin
+    };
+    signal(doc, "beforeSelectionChange", doc, obj);
+    if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
+    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
+    else { return sel }
+  }
+
+  function setSelectionReplaceHistory(doc, sel, options) {
+    var done = doc.history.done, last = lst(done);
+    if (last && last.ranges) {
+      done[done.length - 1] = sel;
+      setSelectionNoUndo(doc, sel, options);
+    } else {
+      setSelection(doc, sel, options);
+    }
+  }
+
+  // Set a new selection.
+  function setSelection(doc, sel, options) {
+    setSelectionNoUndo(doc, sel, options);
+    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+  }
+
+  function setSelectionNoUndo(doc, sel, options) {
+    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+      { sel = filterSelectionChange(doc, sel, options); }
+
+    var bias = options && options.bias ||
+      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+    if (!(options && options.scroll === false) && doc.cm)
+      { ensureCursorVisible(doc.cm); }
+  }
+
+  function setSelectionInner(doc, sel) {
+    if (sel.equals(doc.sel)) { return }
+
+    doc.sel = sel;
+
+    if (doc.cm) {
+      doc.cm.curOp.updateInput = 1;
+      doc.cm.curOp.selectionChanged = true;
+      signalCursorActivity(doc.cm);
+    }
+    signalLater(doc, "cursorActivity", doc);
+  }
+
+  // Verify that the selection does not partially select any atomic
+  // marked ranges.
+  function reCheckSelection(doc) {
+    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
+  }
+
+  // Return a selection that does not partially select any atomic
+  // ranges.
+  function skipAtomicInSelection(doc, sel, bias, mayClear) {
+    var out;
+    for (var i = 0; i < sel.ranges.length; i++) {
+      var range = sel.ranges[i];
+      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
+      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
+      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
+      if (out || newAnchor != range.anchor || newHead != range.head) {
+        if (!out) { out = sel.ranges.slice(0, i); }
+        out[i] = new Range(newAnchor, newHead);
+      }
+    }
+    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
+  }
+
+  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+    var line = getLine(doc, pos.line);
+    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+      var sp = line.markedSpans[i], m = sp.marker;
+
+      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker
+      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
+      // is with selectLeft/Right
+      var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
+      var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;
+
+      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+        if (mayClear) {
+          signal(m, "beforeCursorEnter");
+          if (m.explicitlyCleared) {
+            if (!line.markedSpans) { break }
+            else {--i; continue}
+          }
+        }
+        if (!m.atomic) { continue }
+
+        if (oldPos) {
+          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
+          if (dir < 0 ? preventCursorRight : preventCursorLeft)
+            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
+          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+            { return skipAtomicInner(doc, near, pos, dir, mayClear) }
+        }
+
+        var far = m.find(dir < 0 ? -1 : 1);
+        if (dir < 0 ? preventCursorLeft : preventCursorRight)
+          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
+        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
+      }
+    } }
+    return pos
+  }
+
+  // Ensure a given position is not inside an atomic range.
+  function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+    var dir = bias || 1;
+    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
+    if (!found) {
+      doc.cantEdit = true;
+      return Pos(doc.first, 0)
+    }
+    return found
+  }
+
+  function movePos(doc, pos, dir, line) {
+    if (dir < 0 && pos.ch == 0) {
+      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
+      else { return null }
+    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
+      else { return null }
+    } else {
+      return new Pos(pos.line, pos.ch + dir)
+    }
+  }
+
+  function selectAll(cm) {
+    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
+  }
+
+  // UPDATING
+
+  // Allow "beforeChange" event handlers to influence a change
+  function filterChange(doc, change, update) {
+    var obj = {
+      canceled: false,
+      from: change.from,
+      to: change.to,
+      text: change.text,
+      origin: change.origin,
+      cancel: function () { return obj.canceled = true; }
+    };
+    if (update) { obj.update = function (from, to, text, origin) {
+      if (from) { obj.from = clipPos(doc, from); }
+      if (to) { obj.to = clipPos(doc, to); }
+      if (text) { obj.text = text; }
+      if (origin !== undefined) { obj.origin = origin; }
+    }; }
+    signal(doc, "beforeChange", doc, obj);
+    if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }
+
+    if (obj.canceled) {
+      if (doc.cm) { doc.cm.curOp.updateInput = 2; }
+      return null
+    }
+    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
+  }
+
+  // Apply a change to a document, and add it to the document's
+  // history, and propagating it to all linked documents.
+  function makeChange(doc, change, ignoreReadOnly) {
+    if (doc.cm) {
+      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
+      if (doc.cm.state.suppressEdits) { return }
+    }
+
+    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+      change = filterChange(doc, change, true);
+      if (!change) { return }
+    }
+
+    // Possibly split or suppress the update based on the presence
+    // of read-only spans in its range.
+    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+    if (split) {
+      for (var i = split.length - 1; i >= 0; --i)
+        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
+    } else {
+      makeChangeInner(doc, change);
+    }
+  }
+
+  function makeChangeInner(doc, change) {
+    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
+    var selAfter = computeSelAfterChange(doc, change);
+    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+    var rebased = [];
+
+    linkedDocs(doc, function (doc, sharedHist) {
+      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+        rebaseHist(doc.history, change);
+        rebased.push(doc.history);
+      }
+      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+    });
+  }
+
+  // Revert a change stored in a document's history.
+  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+    var suppress = doc.cm && doc.cm.state.suppressEdits;
+    if (suppress && !allowSelectionOnly) { return }
+
+    var hist = doc.history, event, selAfter = doc.sel;
+    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+    // Verify that there is a useable event (so that ctrl-z won't
+    // needlessly clear selection events)
+    var i = 0;
+    for (; i < source.length; i++) {
+      event = source[i];
+      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+        { break }
+    }
+    if (i == source.length) { return }
+    hist.lastOrigin = hist.lastSelOrigin = null;
+
+    for (;;) {
+      event = source.pop();
+      if (event.ranges) {
+        pushSelectionToHistory(event, dest);
+        if (allowSelectionOnly && !event.equals(doc.sel)) {
+          setSelection(doc, event, {clearRedo: false});
+          return
+        }
+        selAfter = event;
+      } else if (suppress) {
+        source.push(event);
+        return
+      } else { break }
+    }
+
+    // Build up a reverse change object to add to the opposite history
+    // stack (redo when undoing, and vice versa).
+    var antiChanges = [];
+    pushSelectionToHistory(selAfter, dest);
+    dest.push({changes: antiChanges, generation: hist.generation});
+    hist.generation = event.generation || ++hist.maxGeneration;
+
+    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+    var loop = function ( i ) {
+      var change = event.changes[i];
+      change.origin = type;
+      if (filter && !filterChange(doc, change, false)) {
+        source.length = 0;
+        return {}
+      }
+
+      antiChanges.push(historyChangeFromChange(doc, change));
+
+      var after = i ? computeSelAfterChange(doc, change) : lst(source);
+      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
+      var rebased = [];
+
+      // Propagate to the linked documents
+      linkedDocs(doc, function (doc, sharedHist) {
+        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+          rebaseHist(doc.history, change);
+          rebased.push(doc.history);
+        }
+        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+      });
+    };
+
+    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
+      var returned = loop( i$1 );
+
+      if ( returned ) return returned.v;
+    }
+  }
+
+  // Sub-views need their line numbers shifted when text is added
+  // above or below them in the parent document.
+  function shiftDoc(doc, distance) {
+    if (distance == 0) { return }
+    doc.first += distance;
+    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
+      Pos(range.anchor.line + distance, range.anchor.ch),
+      Pos(range.head.line + distance, range.head.ch)
+    ); }), doc.sel.primIndex);
+    if (doc.cm) {
+      regChange(doc.cm, doc.first, doc.first - distance, distance);
+      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+        { regLineChange(doc.cm, l, "gutter"); }
+    }
+  }
+
+  // More lower-level change function, handling only a single document
+  // (not linked ones).
+  function makeChangeSingleDoc(doc, change, selAfter, spans) {
+    if (doc.cm && !doc.cm.curOp)
+      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
+
+    if (change.to.line < doc.first) {
+      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+      return
+    }
+    if (change.from.line > doc.lastLine()) { return }
+
+    // Clip the change to the size of this doc
+    if (change.from.line < doc.first) {
+      var shift = change.text.length - 1 - (doc.first - change.from.line);
+      shiftDoc(doc, shift);
+      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+                text: [lst(change.text)], origin: change.origin};
+    }
+    var last = doc.lastLine();
+    if (change.to.line > last) {
+      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+                text: [change.text[0]], origin: change.origin};
+    }
+
+    change.removed = getBetween(doc, change.from, change.to);
+
+    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
+    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
+    else { updateDoc(doc, change, spans); }
+    setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+
+    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
+      { doc.cantEdit = false; }
+  }
+
+  // Handle the interaction of a change to a document with the editor
+  // that this document is part of.
+  function makeChangeSingleDocInEditor(cm, change, spans) {
+    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+    var recomputeMaxLength = false, checkWidthStart = from.line;
+    if (!cm.options.lineWrapping) {
+      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+      doc.iter(checkWidthStart, to.line + 1, function (line) {
+        if (line == display.maxLine) {
+          recomputeMaxLength = true;
+          return true
+        }
+      });
+    }
+
+    if (doc.sel.contains(change.from, change.to) > -1)
+      { signalCursorActivity(cm); }
+
+    updateDoc(doc, change, spans, estimateHeight(cm));
+
+    if (!cm.options.lineWrapping) {
+      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
+        var len = lineLength(line);
+        if (len > display.maxLineLength) {
+          display.maxLine = line;
+          display.maxLineLength = len;
+          display.maxLineChanged = true;
+          recomputeMaxLength = false;
+        }
+      });
+      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
+    }
+
+    retreatFrontier(doc, from.line);
+    startWorker(cm, 400);
+
+    var lendiff = change.text.length - (to.line - from.line) - 1;
+    // Remember that these lines changed, for updating the display
+    if (change.full)
+      { regChange(cm); }
+    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+      { regLineChange(cm, from.line, "text"); }
+    else
+      { regChange(cm, from.line, to.line + 1, lendiff); }
+
+    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+    if (changeHandler || changesHandler) {
+      var obj = {
+        from: from, to: to,
+        text: change.text,
+        removed: change.removed,
+        origin: change.origin
+      };
+      if (changeHandler) { signalLater(cm, "change", cm, obj); }
+      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
+    }
+    cm.display.selForContextMenu = null;
+  }
+
+  function replaceRange(doc, code, from, to, origin) {
+    var assign;
+
+    if (!to) { to = from; }
+    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
+    if (typeof code == "string") { code = doc.splitLines(code); }
+    makeChange(doc, {from: from, to: to, text: code, origin: origin});
+  }
+
+  // Rebasing/resetting history to deal with externally-sourced changes
+
+  function rebaseHistSelSingle(pos, from, to, diff) {
+    if (to < pos.line) {
+      pos.line += diff;
+    } else if (from < pos.line) {
+      pos.line = from;
+      pos.ch = 0;
+    }
+  }
+
+  // Tries to rebase an array of history events given a change in the
+  // document. If the change touches the same lines as the event, the
+  // event, and everything 'behind' it, is discarded. If the change is
+  // before the event, the event's positions are updated. Uses a
+  // copy-on-write scheme for the positions, to avoid having to
+  // reallocate them all on every rebase, but also avoid problems with
+  // shared position objects being unsafely updated.
+  function rebaseHistArray(array, from, to, diff) {
+    for (var i = 0; i < array.length; ++i) {
+      var sub = array[i], ok = true;
+      if (sub.ranges) {
+        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+        for (var j = 0; j < sub.ranges.length; j++) {
+          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+        }
+        continue
+      }
+      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
+        var cur = sub.changes[j$1];
+        if (to < cur.from.line) {
+          cur.from = Pos(cur.from.line + diff, cur.from.ch);
+          cur.to = Pos(cur.to.line + diff, cur.to.ch);
+        } else if (from <= cur.to.line) {
+          ok = false;
+          break
+        }
+      }
+      if (!ok) {
+        array.splice(0, i + 1);
+        i = 0;
+      }
+    }
+  }
+
+  function rebaseHist(hist, change) {
+    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+    rebaseHistArray(hist.done, from, to, diff);
+    rebaseHistArray(hist.undone, from, to, diff);
+  }
+
+  // Utility for applying a change to a line by handle or number,
+  // returning the number and optionally registering the line as
+  // changed.
+  function changeLine(doc, handle, changeType, op) {
+    var no = handle, line = handle;
+    if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
+    else { no = lineNo(handle); }
+    if (no == null) { return null }
+    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
+    return line
+  }
+
+  // The document is represented as a BTree consisting of leaves, with
+  // chunk of lines in them, and branches, with up to ten leaves or
+  // other branch nodes below them. The top node is always a branch
+  // node, and is the document object itself (meaning it has
+  // additional methods and properties).
+  //
+  // All nodes have parent links. The tree is used both to go from
+  // line numbers to line objects, and to go from objects to numbers.
+  // It also indexes by height, and is used to convert between height
+  // and line object, and to find the total height of the document.
+  //
+  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+  function LeafChunk(lines) {
+    this.lines = lines;
+    this.parent = null;
+    var height = 0;
+    for (var i = 0; i < lines.length; ++i) {
+      lines[i].parent = this;
+      height += lines[i].height;
+    }
+    this.height = height;
+  }
+
+  LeafChunk.prototype = {
+    chunkSize: function() { return this.lines.length },
+
+    // Remove the n lines at offset 'at'.
+    removeInner: function(at, n) {
+      for (var i = at, e = at + n; i < e; ++i) {
+        var line = this.lines[i];
+        this.height -= line.height;
+        cleanUpLine(line);
+        signalLater(line, "delete");
+      }
+      this.lines.splice(at, n);
+    },
+
+    // Helper used to collapse a small branch into a single leaf.
+    collapse: function(lines) {
+      lines.push.apply(lines, this.lines);
+    },
+
+    // Insert the given array of lines at offset 'at', count them as
+    // having the given height.
+    insertInner: function(at, lines, height) {
+      this.height += height;
+      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
+    },
+
+    // Used to iterate over a part of the tree.
+    iterN: function(at, n, op) {
+      for (var e = at + n; at < e; ++at)
+        { if (op(this.lines[at])) { return true } }
+    }
+  };
+
+  function BranchChunk(children) {
+    this.children = children;
+    var size = 0, height = 0;
+    for (var i = 0; i < children.length; ++i) {
+      var ch = children[i];
+      size += ch.chunkSize(); height += ch.height;
+      ch.parent = this;
+    }
+    this.size = size;
+    this.height = height;
+    this.parent = null;
+  }
+
+  BranchChunk.prototype = {
+    chunkSize: function() { return this.size },
+
+    removeInner: function(at, n) {
+      this.size -= n;
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var rm = Math.min(n, sz - at), oldHeight = child.height;
+          child.removeInner(at, rm);
+          this.height -= oldHeight - child.height;
+          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+          if ((n -= rm) == 0) { break }
+          at = 0;
+        } else { at -= sz; }
+      }
+      // If the result is smaller than 25 lines, ensure that it is a
+      // single leaf node.
+      if (this.size - n < 25 &&
+          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+        var lines = [];
+        this.collapse(lines);
+        this.children = [new LeafChunk(lines)];
+        this.children[0].parent = this;
+      }
+    },
+
+    collapse: function(lines) {
+      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
+    },
+
+    insertInner: function(at, lines, height) {
+      this.size += lines.length;
+      this.height += height;
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at <= sz) {
+          child.insertInner(at, lines, height);
+          if (child.lines && child.lines.length > 50) {
+            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+            var remaining = child.lines.length % 25 + 25;
+            for (var pos = remaining; pos < child.lines.length;) {
+              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
+              child.height -= leaf.height;
+              this.children.splice(++i, 0, leaf);
+              leaf.parent = this;
+            }
+            child.lines = child.lines.slice(0, remaining);
+            this.maybeSpill();
+          }
+          break
+        }
+        at -= sz;
+      }
+    },
+
+    // When a node has grown, check whether it should be split.
+    maybeSpill: function() {
+      if (this.children.length <= 10) { return }
+      var me = this;
+      do {
+        var spilled = me.children.splice(me.children.length - 5, 5);
+        var sibling = new BranchChunk(spilled);
+        if (!me.parent) { // Become the parent node
+          var copy = new BranchChunk(me.children);
+          copy.parent = me;
+          me.children = [copy, sibling];
+          me = copy;
+       } else {
+          me.size -= sibling.size;
+          me.height -= sibling.height;
+          var myIndex = indexOf(me.parent.children, me);
+          me.parent.children.splice(myIndex + 1, 0, sibling);
+        }
+        sibling.parent = me.parent;
+      } while (me.children.length > 10)
+      me.parent.maybeSpill();
+    },
+
+    iterN: function(at, n, op) {
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var used = Math.min(n, sz - at);
+          if (child.iterN(at, used, op)) { return true }
+          if ((n -= used) == 0) { break }
+          at = 0;
+        } else { at -= sz; }
+      }
+    }
+  };
+
+  // Line widgets are block elements displayed above or below a line.
+
+  var LineWidget = function(doc, node, options) {
+    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
+      { this[opt] = options[opt]; } } }
+    this.doc = doc;
+    this.node = node;
+  };
+
+  LineWidget.prototype.clear = function () {
+    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+    if (no == null || !ws) { return }
+    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
+    if (!ws.length) { line.widgets = null; }
+    var height = widgetHeight(this);
+    updateLineHeight(line, Math.max(0, line.height - height));
+    if (cm) {
+      runInOp(cm, function () {
+        adjustScrollWhenAboveVisible(cm, line, -height);
+        regLineChange(cm, no, "widget");
+      });
+      signalLater(cm, "lineWidgetCleared", cm, this, no);
+    }
+  };
+
+  LineWidget.prototype.changed = function () {
+      var this$1 = this;
+
+    var oldH = this.height, cm = this.doc.cm, line = this.line;
+    this.height = null;
+    var diff = widgetHeight(this) - oldH;
+    if (!diff) { return }
+    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
+    if (cm) {
+      runInOp(cm, function () {
+        cm.curOp.forceUpdate = true;
+        adjustScrollWhenAboveVisible(cm, line, diff);
+        signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
+      });
+    }
+  };
+  eventMixin(LineWidget);
+
+  function adjustScrollWhenAboveVisible(cm, line, diff) {
+    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+      { addToScrollTop(cm, diff); }
+  }
+
+  function addLineWidget(doc, handle, node, options) {
+    var widget = new LineWidget(doc, node, options);
+    var cm = doc.cm;
+    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
+    changeLine(doc, handle, "widget", function (line) {
+      var widgets = line.widgets || (line.widgets = []);
+      if (widget.insertAt == null) { widgets.push(widget); }
+      else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); }
+      widget.line = line;
+      if (cm && !lineIsHidden(doc, line)) {
+        var aboveVisible = heightAtLine(line) < doc.scrollTop;
+        updateLineHeight(line, line.height + widgetHeight(widget));
+        if (aboveVisible) { addToScrollTop(cm, widget.height); }
+        cm.curOp.forceUpdate = true;
+      }
+      return true
+    });
+    if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
+    return widget
+  }
+
+  // TEXTMARKERS
+
+  // Created with markText and setBookmark methods. A TextMarker is a
+  // handle that can be used to clear or find a marked position in the
+  // document. Line objects hold arrays (markedSpans) containing
+  // {from, to, marker} object pointing to such marker objects, and
+  // indicating that such a marker is present on that line. Multiple
+  // lines may point to the same marker when it spans across lines.
+  // The spans will have null for their from/to properties when the
+  // marker continues beyond the start/end of the line. Markers have
+  // links back to the lines they currently touch.
+
+  // Collapsed markers have unique ids, in order to be able to order
+  // them, which is needed for uniquely determining an outer marker
+  // when they overlap (they may nest, but not partially overlap).
+  var nextMarkerId = 0;
+
+  var TextMarker = function(doc, type) {
+    this.lines = [];
+    this.type = type;
+    this.doc = doc;
+    this.id = ++nextMarkerId;
+  };
+
+  // Clear the marker.
+  TextMarker.prototype.clear = function () {
+    if (this.explicitlyCleared) { return }
+    var cm = this.doc.cm, withOp = cm && !cm.curOp;
+    if (withOp) { startOperation(cm); }
+    if (hasHandler(this, "clear")) {
+      var found = this.find();
+      if (found) { signalLater(this, "clear", found.from, found.to); }
+    }
+    var min = null, max = null;
+    for (var i = 0; i < this.lines.length; ++i) {
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
+      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
+      else if (cm) {
+        if (span.to != null) { max = lineNo(line); }
+        if (span.from != null) { min = lineNo(line); }
+      }
+      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+        { updateLineHeight(line, textHeight(cm.display)); }
+    }
+    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
+      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
+      if (len > cm.display.maxLineLength) {
+        cm.display.maxLine = visual;
+        cm.display.maxLineLength = len;
+        cm.display.maxLineChanged = true;
+      }
+    } }
+
+    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
+    this.lines.length = 0;
+    this.explicitlyCleared = true;
+    if (this.atomic && this.doc.cantEdit) {
+      this.doc.cantEdit = false;
+      if (cm) { reCheckSelection(cm.doc); }
+    }
+    if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
+    if (withOp) { endOperation(cm); }
+    if (this.parent) { this.parent.clear(); }
+  };
+
+  // Find the position of the marker in the document. Returns a {from,
+  // to} object by default. Side can be passed to get a specific side
+  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+  // Pos objects returned contain a line object, rather than a line
+  // number (used to prevent looking up the same line twice).
+  TextMarker.prototype.find = function (side, lineObj) {
+    if (side == null && this.type == "bookmark") { side = 1; }
+    var from, to;
+    for (var i = 0; i < this.lines.length; ++i) {
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
+      if (span.from != null) {
+        from = Pos(lineObj ? line : lineNo(line), span.from);
+        if (side == -1) { return from }
+      }
+      if (span.to != null) {
+        to = Pos(lineObj ? line : lineNo(line), span.to);
+        if (side == 1) { return to }
+      }
+    }
+    return from && {from: from, to: to}
+  };
+
+  // Signals that the marker's widget changed, and surrounding layout
+  // should be recomputed.
+  TextMarker.prototype.changed = function () {
+      var this$1 = this;
+
+    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+    if (!pos || !cm) { return }
+    runInOp(cm, function () {
+      var line = pos.line, lineN = lineNo(pos.line);
+      var view = findViewForLine(cm, lineN);
+      if (view) {
+        clearLineMeasurementCacheFor(view);
+        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+      }
+      cm.curOp.updateMaxLine = true;
+      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+        var oldHeight = widget.height;
+        widget.height = null;
+        var dHeight = widgetHeight(widget) - oldHeight;
+        if (dHeight)
+          { updateLineHeight(line, line.height + dHeight); }
+      }
+      signalLater(cm, "markerChanged", cm, this$1);
+    });
+  };
+
+  TextMarker.prototype.attachLine = function (line) {
+    if (!this.lines.length && this.doc.cm) {
+      var op = this.doc.cm.curOp;
+      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
+    }
+    this.lines.push(line);
+  };
+
+  TextMarker.prototype.detachLine = function (line) {
+    this.lines.splice(indexOf(this.lines, line), 1);
+    if (!this.lines.length && this.doc.cm) {
+      var op = this.doc.cm.curOp
+      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+    }
+  };
+  eventMixin(TextMarker);
+
+  // Create a marker, wire it up to the right lines, and
+  function markText(doc, from, to, options, type) {
+    // Shared markers (across linked documents) are handled separately
+    // (markTextShared will call out to this again, once per
+    // document).
+    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
+    // Ensure we are in an operation.
+    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
+
+    var marker = new TextMarker(doc, type), diff = cmp(from, to);
+    if (options) { copyObj(options, marker, false); }
+    // Don't connect empty markers unless clearWhenEmpty is false
+    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+      { return marker }
+    if (marker.replacedWith) {
+      // Showing up as a widget implies collapsed (widget replaces text)
+      marker.collapsed = true;
+      marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
+      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
+      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
+    }
+    if (marker.collapsed) {
+      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+        { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
+      seeCollapsedSpans();
+    }
+
+    if (marker.addToHistory)
+      { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }
+
+    var curLine = from.line, cm = doc.cm, updateMaxLine;
+    doc.iter(curLine, to.line + 1, function (line) {
+      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+        { updateMaxLine = true; }
+      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
+      addMarkedSpan(line, new MarkedSpan(marker,
+                                         curLine == from.line ? from.ch : null,
+                                         curLine == to.line ? to.ch : null));
+      ++curLine;
+    });
+    // lineIsHidden depends on the presence of the spans, so needs a second pass
+    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
+      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
+    }); }
+
+    if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }
+
+    if (marker.readOnly) {
+      seeReadOnlySpans();
+      if (doc.history.done.length || doc.history.undone.length)
+        { doc.clearHistory(); }
+    }
+    if (marker.collapsed) {
+      marker.id = ++nextMarkerId;
+      marker.atomic = true;
+    }
+    if (cm) {
+      // Sync editor state
+      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
+      if (marker.collapsed)
+        { regChange(cm, from.line, to.line + 1); }
+      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
+               marker.attributes || marker.title)
+        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
+      if (marker.atomic) { reCheckSelection(cm.doc); }
+      signalLater(cm, "markerAdded", cm, marker);
+    }
+    return marker
+  }
+
+  // SHARED TEXTMARKERS
+
+  // A shared marker spans multiple linked documents. It is
+  // implemented as a meta-marker-object controlling multiple normal
+  // markers.
+  var SharedTextMarker = function(markers, primary) {
+    this.markers = markers;
+    this.primary = primary;
+    for (var i = 0; i < markers.length; ++i)
+      { markers[i].parent = this; }
+  };
+
+  SharedTextMarker.prototype.clear = function () {
+    if (this.explicitlyCleared) { return }
+    this.explicitlyCleared = true;
+    for (var i = 0; i < this.markers.length; ++i)
+      { this.markers[i].clear(); }
+    signalLater(this, "clear");
+  };
+
+  SharedTextMarker.prototype.find = function (side, lineObj) {
+    return this.primary.find(side, lineObj)
+  };
+  eventMixin(SharedTextMarker);
+
+  function markTextShared(doc, from, to, options, type) {
+    options = copyObj(options);
+    options.shared = false;
+    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+    var widget = options.widgetNode;
+    linkedDocs(doc, function (doc) {
+      if (widget) { options.widgetNode = widget.cloneNode(true); }
+      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+      for (var i = 0; i < doc.linked.length; ++i)
+        { if (doc.linked[i].isParent) { return } }
+      primary = lst(markers);
+    });
+    return new SharedTextMarker(markers, primary)
+  }
+
+  function findSharedMarkers(doc) {
+    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
+  }
+
+  function copySharedMarkers(doc, markers) {
+    for (var i = 0; i < markers.length; i++) {
+      var marker = markers[i], pos = marker.find();
+      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+      if (cmp(mFrom, mTo)) {
+        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+        marker.markers.push(subMark);
+        subMark.parent = marker;
+      }
+    }
+  }
+
+  function detachSharedMarkers(markers) {
+    var loop = function ( i ) {
+      var marker = markers[i], linked = [marker.primary.doc];
+      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
+      for (var j = 0; j < marker.markers.length; j++) {
+        var subMarker = marker.markers[j];
+        if (indexOf(linked, subMarker.doc) == -1) {
+          subMarker.parent = null;
+          marker.markers.splice(j--, 1);
+        }
+      }
+    };
+
+    for (var i = 0; i < markers.length; i++) loop( i );
+  }
+
+  var nextDocId = 0;
+  var Doc = function(text, mode, firstLine, lineSep, direction) {
+    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
+    if (firstLine == null) { firstLine = 0; }
+
+    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+    this.first = firstLine;
+    this.scrollTop = this.scrollLeft = 0;
+    this.cantEdit = false;
+    this.cleanGeneration = 1;
+    this.modeFrontier = this.highlightFrontier = firstLine;
+    var start = Pos(firstLine, 0);
+    this.sel = simpleSelection(start);
+    this.history = new History(null);
+    this.id = ++nextDocId;
+    this.modeOption = mode;
+    this.lineSep = lineSep;
+    this.direction = (direction == "rtl") ? "rtl" : "ltr";
+    this.extend = false;
+
+    if (typeof text == "string") { text = this.splitLines(text); }
+    updateDoc(this, {from: start, to: start, text: text});
+    setSelection(this, simpleSelection(start), sel_dontScroll);
+  };
+
+  Doc.prototype = createObj(BranchChunk.prototype, {
+    constructor: Doc,
+    // Iterate over the document. Supports two forms -- with only one
+    // argument, it calls that for each line in the document. With
+    // three, it iterates over the range given by the first two (with
+    // the second being non-inclusive).
+    iter: function(from, to, op) {
+      if (op) { this.iterN(from - this.first, to - from, op); }
+      else { this.iterN(this.first, this.first + this.size, from); }
+    },
+
+    // Non-public interface for adding and removing lines.
+    insert: function(at, lines) {
+      var height = 0;
+      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
+      this.insertInner(at - this.first, lines, height);
+    },
+    remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+    // From here, the methods are part of the public interface. Most
+    // are also available from CodeMirror (editor) instances.
+
+    getValue: function(lineSep) {
+      var lines = getLines(this, this.first, this.first + this.size);
+      if (lineSep === false) { return lines }
+      return lines.join(lineSep || this.lineSeparator())
+    },
+    setValue: docMethodOp(function(code) {
+      var top = Pos(this.first, 0), last = this.first + this.size - 1;
+      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+                        text: this.splitLines(code), origin: "setValue", full: true}, true);
+      if (this.cm) { scrollToCoords(this.cm, 0, 0); }
+      setSelection(this, simpleSelection(top), sel_dontScroll);
+    }),
+    replaceRange: function(code, from, to, origin) {
+      from = clipPos(this, from);
+      to = to ? clipPos(this, to) : from;
+      replaceRange(this, code, from, to, origin);
+    },
+    getRange: function(from, to, lineSep) {
+      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+      if (lineSep === false) { return lines }
+      return lines.join(lineSep || this.lineSeparator())
+    },
+
+    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
+
+    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
+    getLineNumber: function(line) {return lineNo(line)},
+
+    getLineHandleVisualStart: function(line) {
+      if (typeof line == "number") { line = getLine(this, line); }
+      return visualLine(line)
+    },
+
+    lineCount: function() {return this.size},
+    firstLine: function() {return this.first},
+    lastLine: function() {return this.first + this.size - 1},
+
+    clipPos: function(pos) {return clipPos(this, pos)},
+
+    getCursor: function(start) {
+      var range = this.sel.primary(), pos;
+      if (start == null || start == "head") { pos = range.head; }
+      else if (start == "anchor") { pos = range.anchor; }
+      else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
+      else { pos = range.from(); }
+      return pos
+    },
+    listSelections: function() { return this.sel.ranges },
+    somethingSelected: function() {return this.sel.somethingSelected()},
+
+    setCursor: docMethodOp(function(line, ch, options) {
+      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+    }),
+    setSelection: docMethodOp(function(anchor, head, options) {
+      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+    }),
+    extendSelection: docMethodOp(function(head, other, options) {
+      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+    }),
+    extendSelections: docMethodOp(function(heads, options) {
+      extendSelections(this, clipPosArray(this, heads), options);
+    }),
+    extendSelectionsBy: docMethodOp(function(f, options) {
+      var heads = map(this.sel.ranges, f);
+      extendSelections(this, clipPosArray(this, heads), options);
+    }),
+    setSelections: docMethodOp(function(ranges, primary, options) {
+      if (!ranges.length) { return }
+      var out = [];
+      for (var i = 0; i < ranges.length; i++)
+        { out[i] = new Range(clipPos(this, ranges[i].anchor),
+                           clipPos(this, ranges[i].head)); }
+      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
+      setSelection(this, normalizeSelection(this.cm, out, primary), options);
+    }),
+    addSelection: docMethodOp(function(anchor, head, options) {
+      var ranges = this.sel.ranges.slice(0);
+      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
+    }),
+
+    getSelection: function(lineSep) {
+      var ranges = this.sel.ranges, lines;
+      for (var i = 0; i < ranges.length; i++) {
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+        lines = lines ? lines.concat(sel) : sel;
+      }
+      if (lineSep === false) { return lines }
+      else { return lines.join(lineSep || this.lineSeparator()) }
+    },
+    getSelections: function(lineSep) {
+      var parts = [], ranges = this.sel.ranges;
+      for (var i = 0; i < ranges.length; i++) {
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
+        parts[i] = sel;
+      }
+      return parts
+    },
+    replaceSelection: function(code, collapse, origin) {
+      var dup = [];
+      for (var i = 0; i < this.sel.ranges.length; i++)
+        { dup[i] = code; }
+      this.replaceSelections(dup, collapse, origin || "+input");
+    },
+    replaceSelections: docMethodOp(function(code, collapse, origin) {
+      var changes = [], sel = this.sel;
+      for (var i = 0; i < sel.ranges.length; i++) {
+        var range = sel.ranges[i];
+        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
+      }
+      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
+        { makeChange(this, changes[i$1]); }
+      if (newSel) { setSelectionReplaceHistory(this, newSel); }
+      else if (this.cm) { ensureCursorVisible(this.cm); }
+    }),
+    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+    setExtending: function(val) {this.extend = val;},
+    getExtending: function() {return this.extend},
+
+    historySize: function() {
+      var hist = this.history, done = 0, undone = 0;
+      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
+      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
+      return {undo: done, redo: undone}
+    },
+    clearHistory: function() {
+      var this$1 = this;
+
+      this.history = new History(this.history.maxGeneration);
+      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
+    },
+
+    markClean: function() {
+      this.cleanGeneration = this.changeGeneration(true);
+    },
+    changeGeneration: function(forceSplit) {
+      if (forceSplit)
+        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
+      return this.history.generation
+    },
+    isClean: function (gen) {
+      return this.history.generation == (gen || this.cleanGeneration)
+    },
+
+    getHistory: function() {
+      return {done: copyHistoryArray(this.history.done),
+              undone: copyHistoryArray(this.history.undone)}
+    },
+    setHistory: function(histData) {
+      var hist = this.history = new History(this.history.maxGeneration);
+      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+    },
+
+    setGutterMarker: docMethodOp(function(line, gutterID, value) {
+      return changeLine(this, line, "gutter", function (line) {
+        var markers = line.gutterMarkers || (line.gutterMarkers = {});
+        markers[gutterID] = value;
+        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
+        return true
+      })
+    }),
+
+    clearGutter: docMethodOp(function(gutterID) {
+      var this$1 = this;
+
+      this.iter(function (line) {
+        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+          changeLine(this$1, line, "gutter", function () {
+            line.gutterMarkers[gutterID] = null;
+            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
+            return true
+          });
+        }
+      });
+    }),
+
+    lineInfo: function(line) {
+      var n;
+      if (typeof line == "number") {
+        if (!isLine(this, line)) { return null }
+        n = line;
+        line = getLine(this, line);
+        if (!line) { return null }
+      } else {
+        n = lineNo(line);
+        if (n == null) { return null }
+      }
+      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+              widgets: line.widgets}
+    },
+
+    addLineClass: docMethodOp(function(handle, where, cls) {
+      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+        var prop = where == "text" ? "textClass"
+                 : where == "background" ? "bgClass"
+                 : where == "gutter" ? "gutterClass" : "wrapClass";
+        if (!line[prop]) { line[prop] = cls; }
+        else if (classTest(cls).test(line[prop])) { return false }
+        else { line[prop] += " " + cls; }
+        return true
+      })
+    }),
+    removeLineClass: docMethodOp(function(handle, where, cls) {
+      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+        var prop = where == "text" ? "textClass"
+                 : where == "background" ? "bgClass"
+                 : where == "gutter" ? "gutterClass" : "wrapClass";
+        var cur = line[prop];
+        if (!cur) { return false }
+        else if (cls == null) { line[prop] = null; }
+        else {
+          var found = cur.match(classTest(cls));
+          if (!found) { return false }
+          var end = found.index + found[0].length;
+          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+        }
+        return true
+      })
+    }),
+
+    addLineWidget: docMethodOp(function(handle, node, options) {
+      return addLineWidget(this, handle, node, options)
+    }),
+    removeLineWidget: function(widget) { widget.clear(); },
+
+    markText: function(from, to, options) {
+      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
+    },
+    setBookmark: function(pos, options) {
+      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+                      insertLeft: options && options.insertLeft,
+                      clearWhenEmpty: false, shared: options && options.shared,
+                      handleMouseEvents: options && options.handleMouseEvents};
+      pos = clipPos(this, pos);
+      return markText(this, pos, pos, realOpts, "bookmark")
+    },
+    findMarksAt: function(pos) {
+      pos = clipPos(this, pos);
+      var markers = [], spans = getLine(this, pos.line).markedSpans;
+      if (spans) { for (var i = 0; i < spans.length; ++i) {
+        var span = spans[i];
+        if ((span.from == null || span.from <= pos.ch) &&
+            (span.to == null || span.to >= pos.ch))
+          { markers.push(span.marker.parent || span.marker); }
+      } }
+      return markers
+    },
+    findMarks: function(from, to, filter) {
+      from = clipPos(this, from); to = clipPos(this, to);
+      var found = [], lineNo = from.line;
+      this.iter(from.line, to.line + 1, function (line) {
+        var spans = line.markedSpans;
+        if (spans) { for (var i = 0; i < spans.length; i++) {
+          var span = spans[i];
+          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+                span.from == null && lineNo != from.line ||
+                span.from != null && lineNo == to.line && span.from >= to.ch) &&
+              (!filter || filter(span.marker)))
+            { found.push(span.marker.parent || span.marker); }
+        } }
+        ++lineNo;
+      });
+      return found
+    },
+    getAllMarks: function() {
+      var markers = [];
+      this.iter(function (line) {
+        var sps = line.markedSpans;
+        if (sps) { for (var i = 0; i < sps.length; ++i)
+          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
+      });
+      return markers
+    },
+
+    posFromIndex: function(off) {
+      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
+      this.iter(function (line) {
+        var sz = line.text.length + sepSize;
+        if (sz > off) { ch = off; return true }
+        off -= sz;
+        ++lineNo;
+      });
+      return clipPos(this, Pos(lineNo, ch))
+    },
+    indexFromPos: function (coords) {
+      coords = clipPos(this, coords);
+      var index = coords.ch;
+      if (coords.line < this.first || coords.ch < 0) { return 0 }
+      var sepSize = this.lineSeparator().length;
+      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
+        index += line.text.length + sepSize;
+      });
+      return index
+    },
+
+    copy: function(copyHistory) {
+      var doc = new Doc(getLines(this, this.first, this.first + this.size),
+                        this.modeOption, this.first, this.lineSep, this.direction);
+      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+      doc.sel = this.sel;
+      doc.extend = false;
+      if (copyHistory) {
+        doc.history.undoDepth = this.history.undoDepth;
+        doc.setHistory(this.getHistory());
+      }
+      return doc
+    },
+
+    linkedDoc: function(options) {
+      if (!options) { options = {}; }
+      var from = this.first, to = this.first + this.size;
+      if (options.from != null && options.from > from) { from = options.from; }
+      if (options.to != null && options.to < to) { to = options.to; }
+      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
+      if (options.sharedHist) { copy.history = this.history
+      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+      copySharedMarkers(copy, findSharedMarkers(this));
+      return copy
+    },
+    unlinkDoc: function(other) {
+      if (other instanceof CodeMirror) { other = other.doc; }
+      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
+        var link = this.linked[i];
+        if (link.doc != other) { continue }
+        this.linked.splice(i, 1);
+        other.unlinkDoc(this);
+        detachSharedMarkers(findSharedMarkers(this));
+        break
+      } }
+      // If the histories were shared, split them again
+      if (other.history == this.history) {
+        var splitIds = [other.id];
+        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
+        other.history = new History(null);
+        other.history.done = copyHistoryArray(this.history.done, splitIds);
+        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+      }
+    },
+    iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+    getMode: function() {return this.mode},
+    getEditor: function() {return this.cm},
+
+    splitLines: function(str) {
+      if (this.lineSep) { return str.split(this.lineSep) }
+      return splitLinesAuto(str)
+    },
+    lineSeparator: function() { return this.lineSep || "\n" },
+
+    setDirection: docMethodOp(function (dir) {
+      if (dir != "rtl") { dir = "ltr"; }
+      if (dir == this.direction) { return }
+      this.direction = dir;
+      this.iter(function (line) { return line.order = null; });
+      if (this.cm) { directionChanged(this.cm); }
+    })
+  });
+
+  // Public alias.
+  Doc.prototype.eachLine = Doc.prototype.iter;
+
+  // Kludge to work around strange IE behavior where it'll sometimes
+  // re-fire a series of drag-related events right after the drop (#1551)
+  var lastDrop = 0;
+
+  function onDrop(e) {
+    var cm = this;
+    clearDragCursor(cm);
+    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+      { return }
+    e_preventDefault(e);
+    if (ie) { lastDrop = +new Date; }
+    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+    if (!pos || cm.isReadOnly()) { return }
+    // Might be a file drop, in which case we simply extract the text
+    // and insert it.
+    if (files && files.length && window.FileReader && window.File) {
+      var n = files.length, text = Array(n), read = 0;
+      var markAsReadAndPasteIfAllFilesAreRead = function () {
+        if (++read == n) {
+          operation(cm, function () {
+            pos = clipPos(cm.doc, pos);
+            var change = {from: pos, to: pos,
+                          text: cm.doc.splitLines(
+                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
+                          origin: "paste"};
+            makeChange(cm.doc, change);
+            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
+          })();
+        }
+      };
+      var readTextFromFile = function (file, i) {
+        if (cm.options.allowDropFileTypes &&
+            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
+          markAsReadAndPasteIfAllFilesAreRead();
+          return
+        }
+        var reader = new FileReader;
+        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
+        reader.onload = function () {
+          var content = reader.result;
+          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
+            markAsReadAndPasteIfAllFilesAreRead();
+            return
+          }
+          text[i] = content;
+          markAsReadAndPasteIfAllFilesAreRead();
+        };
+        reader.readAsText(file);
+      };
+      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
+    } else { // Normal drop
+      // Don't do a replace if the drop happened inside of the selected text.
+      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+        cm.state.draggingText(e);
+        // Ensure the editor is re-focused
+        setTimeout(function () { return cm.display.input.focus(); }, 20);
+        return
+      }
+      try {
+        var text$1 = e.dataTransfer.getData("Text");
+        if (text$1) {
+          var selected;
+          if (cm.state.draggingText && !cm.state.draggingText.copy)
+            { selected = cm.listSelections(); }
+          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
+            { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
+          cm.replaceSelection(text$1, "around", "paste");
+          cm.display.input.focus();
+        }
+      }
+      catch(e$1){}
+    }
+  }
+
+  function onDragStart(cm, e) {
+    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
+    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
+
+    e.dataTransfer.setData("Text", cm.getSelection());
+    e.dataTransfer.effectAllowed = "copyMove";
+
+    // Use dummy image instead of default browsers image.
+    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+    if (e.dataTransfer.setDragImage && !safari) {
+      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+      if (presto) {
+        img.width = img.height = 1;
+        cm.display.wrapper.appendChild(img);
+        // Force a relayout, or Opera won't use our image for some obscure reason
+        img._top = img.offsetTop;
+      }
+      e.dataTransfer.setDragImage(img, 0, 0);
+      if (presto) { img.parentNode.removeChild(img); }
+    }
+  }
+
+  function onDragOver(cm, e) {
+    var pos = posFromMouse(cm, e);
+    if (!pos) { return }
+    var frag = document.createDocumentFragment();
+    drawSelectionCursor(cm, pos, frag);
+    if (!cm.display.dragCursor) {
+      cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+    }
+    removeChildrenAndAdd(cm.display.dragCursor, frag);
+  }
+
+  function clearDragCursor(cm) {
+    if (cm.display.dragCursor) {
+      cm.display.lineSpace.removeChild(cm.display.dragCursor);
+      cm.display.dragCursor = null;
+    }
+  }
+
+  // These must be handled carefully, because naively registering a
+  // handler for each editor will cause the editors to never be
+  // garbage collected.
+
+  function forEachCodeMirror(f) {
+    if (!document.getElementsByClassName) { return }
+    var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
+    for (var i = 0; i < byClass.length; i++) {
+      var cm = byClass[i].CodeMirror;
+      if (cm) { editors.push(cm); }
+    }
+    if (editors.length) { editors[0].operation(function () {
+      for (var i = 0; i < editors.length; i++) { f(editors[i]); }
+    }); }
+  }
+
+  var globalsRegistered = false;
+  function ensureGlobalHandlers() {
+    if (globalsRegistered) { return }
+    registerGlobalHandlers();
+    globalsRegistered = true;
+  }
+  function registerGlobalHandlers() {
+    // When the window resizes, we need to refresh active editors.
+    var resizeTimer;
+    on(window, "resize", function () {
+      if (resizeTimer == null) { resizeTimer = setTimeout(function () {
+        resizeTimer = null;
+        forEachCodeMirror(onResize);
+      }, 100); }
+    });
+    // When the window loses focus, we want to show the editor as blurred
+    on(window, "blur", function () { return forEachCodeMirror(onBlur); });
+  }
+  // Called when the window resizes
+  function onResize(cm) {
+    var d = cm.display;
+    // Might be a text scaling operation, clear size caches.
+    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+    d.scrollbarsClipped = false;
+    cm.setSize();
+  }
+
+  var keyNames = {
+    3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+    19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+    36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+    46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+    106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
+    173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+    221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+    63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+  };
+
+  // Number keys
+  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
+  // Alphabetic keys
+  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
+  // Function keys
+  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }
+
+  var keyMap = {};
+
+  keyMap.basic = {
+    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+    "Esc": "singleSelection"
+  };
+  // Note that the save and find-related commands aren't defined by
+  // default. User code or addons can define them. Unknown commands
+  // are simply ignored.
+  keyMap.pcDefault = {
+    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+    "fallthrough": "basic"
+  };
+  // Very basic readline/emacs-style bindings, which are standard on Mac.
+  keyMap.emacsy = {
+    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+    "Ctrl-O": "openLine"
+  };
+  keyMap.macDefault = {
+    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+    "fallthrough": ["basic", "emacsy"]
+  };
+  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+  // KEYMAP DISPATCH
+
+  function normalizeKeyName(name) {
+    var parts = name.split(/-(?!$)/);
+    name = parts[parts.length - 1];
+    var alt, ctrl, shift, cmd;
+    for (var i = 0; i < parts.length - 1; i++) {
+      var mod = parts[i];
+      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
+      else if (/^a(lt)?$/i.test(mod)) { alt = true; }
+      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
+      else if (/^s(hift)?$/i.test(mod)) { shift = true; }
+      else { throw new Error("Unrecognized modifier name: " + mod) }
+    }
+    if (alt) { name = "Alt-" + name; }
+    if (ctrl) { name = "Ctrl-" + name; }
+    if (cmd) { name = "Cmd-" + name; }
+    if (shift) { name = "Shift-" + name; }
+    return name
+  }
+
+  // This is a kludge to keep keymaps mostly working as raw objects
+  // (backwards compatibility) while at the same time support features
+  // like normalization and multi-stroke key bindings. It compiles a
+  // new normalized keymap, and then updates the old object to reflect
+  // this.
+  function normalizeKeyMap(keymap) {
+    var copy = {};
+    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
+      var value = keymap[keyname];
+      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
+      if (value == "...") { delete keymap[keyname]; continue }
+
+      var keys = map(keyname.split(" "), normalizeKeyName);
+      for (var i = 0; i < keys.length; i++) {
+        var val = (void 0), name = (void 0);
+        if (i == keys.length - 1) {
+          name = keys.join(" ");
+          val = value;
+        } else {
+          name = keys.slice(0, i + 1).join(" ");
+          val = "...";
+        }
+        var prev = copy[name];
+        if (!prev) { copy[name] = val; }
+        else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
+      }
+      delete keymap[keyname];
+    } }
+    for (var prop in copy) { keymap[prop] = copy[prop]; }
+    return keymap
+  }
+
+  function lookupKey(key, map, handle, context) {
+    map = getKeyMap(map);
+    var found = map.call ? map.call(key, context) : map[key];
+    if (found === false) { return "nothing" }
+    if (found === "...") { return "multi" }
+    if (found != null && handle(found)) { return "handled" }
+
+    if (map.fallthrough) {
+      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+        { return lookupKey(key, map.fallthrough, handle, context) }
+      for (var i = 0; i < map.fallthrough.length; i++) {
+        var result = lookupKey(key, map.fallthrough[i], handle, context);
+        if (result) { return result }
+      }
+    }
+  }
+
+  // Modifier key presses don't count as 'real' key presses for the
+  // purpose of keymap fallthrough.
+  function isModifierKey(value) {
+    var name = typeof value == "string" ? value : keyNames[value.keyCode];
+    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
+  }
+
+  function addModifierNames(name, event, noShift) {
+    var base = name;
+    if (event.altKey && base != "Alt") { name = "Alt-" + name; }
+    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
+    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; }
+    if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
+    return name
+  }
+
+  // Look up the name of a key as indicated by an event object.
+  function keyName(event, noShift) {
+    if (presto && event.keyCode == 34 && event["char"]) { return false }
+    var name = keyNames[event.keyCode];
+    if (name == null || event.altGraphKey) { return false }
+    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
+    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
+    if (event.keyCode == 3 && event.code) { name = event.code; }
+    return addModifierNames(name, event, noShift)
+  }
+
+  function getKeyMap(val) {
+    return typeof val == "string" ? keyMap[val] : val
+  }
+
+  // Helper for deleting text near the selection(s), used to implement
+  // backspace, delete, and similar functionality.
+  function deleteNearSelection(cm, compute) {
+    var ranges = cm.doc.sel.ranges, kill = [];
+    // Build up a set of ranges to kill first, merging overlapping
+    // ranges.
+    for (var i = 0; i < ranges.length; i++) {
+      var toKill = compute(ranges[i]);
+      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+        var replaced = kill.pop();
+        if (cmp(replaced.from, toKill.from) < 0) {
+          toKill.from = replaced.from;
+          break
+        }
+      }
+      kill.push(toKill);
+    }
+    // Next, remove those actual ranges.
+    runInOp(cm, function () {
+      for (var i = kill.length - 1; i >= 0; i--)
+        { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
+      ensureCursorVisible(cm);
+    });
+  }
+
+  function moveCharLogically(line, ch, dir) {
+    var target = skipExtendingChars(line.text, ch + dir, dir);
+    return target < 0 || target > line.text.length ? null : target
+  }
+
+  function moveLogically(line, start, dir) {
+    var ch = moveCharLogically(line, start.ch, dir);
+    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
+  }
+
+  function endOfLine(visually, cm, lineObj, lineNo, dir) {
+    if (visually) {
+      if (cm.doc.direction == "rtl") { dir = -dir; }
+      var order = getOrder(lineObj, cm.doc.direction);
+      if (order) {
+        var part = dir < 0 ? lst(order) : order[0];
+        var moveInStorageOrder = (dir < 0) == (part.level == 1);
+        var sticky = moveInStorageOrder ? "after" : "before";
+        var ch;
+        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
+        // it could be that the last bidi part is not on the last visual line,
+        // since visual lines contain content order-consecutive chunks.
+        // Thus, in rtl, we are looking for the first (content-order) character
+        // in the rtl chunk that is on the last line (that is, the same line
+        // as the last (content-order) character).
+        if (part.level > 0 || cm.doc.direction == "rtl") {
+          var prep = prepareMeasureForLine(cm, lineObj);
+          ch = dir < 0 ? lineObj.text.length - 1 : 0;
+          var targetTop = measureCharPrepared(cm, prep, ch).top;
+          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
+          if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
+        } else { ch = dir < 0 ? part.to : part.from; }
+        return new Pos(lineNo, ch, sticky)
+      }
+    }
+    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
+  }
+
+  function moveVisually(cm, line, start, dir) {
+    var bidi = getOrder(line, cm.doc.direction);
+    if (!bidi) { return moveLogically(line, start, dir) }
+    if (start.ch >= line.text.length) {
+      start.ch = line.text.length;
+      start.sticky = "before";
+    } else if (start.ch <= 0) {
+      start.ch = 0;
+      start.sticky = "after";
+    }
+    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
+    if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
+      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
+      // nothing interesting happens.
+      return moveLogically(line, start, dir)
+    }
+
+    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
+    var prep;
+    var getWrappedLineExtent = function (ch) {
+      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
+      prep = prep || prepareMeasureForLine(cm, line);
+      return wrappedLineExtentChar(cm, line, prep, ch)
+    };
+    var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);
+
+    if (cm.doc.direction == "rtl" || part.level == 1) {
+      var moveInStorageOrder = (part.level == 1) == (dir < 0);
+      var ch = mv(start, moveInStorageOrder ? 1 : -1);
+      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
+        // Case 2: We move within an rtl part or in an rtl editor on the same visual line
+        var sticky = moveInStorageOrder ? "before" : "after";
+        return new Pos(start.line, ch, sticky)
+      }
+    }
+
+    // Case 3: Could not move within this bidi part in this visual line, so leave
+    // the current bidi part
+
+    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
+      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
+        ? new Pos(start.line, mv(ch, 1), "before")
+        : new Pos(start.line, ch, "after"); };
+
+      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
+        var part = bidi[partPos];
+        var moveInStorageOrder = (dir > 0) == (part.level != 1);
+        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
+        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
+        ch = moveInStorageOrder ? part.from : mv(part.to, -1);
+        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
+      }
+    };
+
+    // Case 3a: Look for other bidi parts on the same visual line
+    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
+    if (res) { return res }
+
+    // Case 3b: Look for other bidi parts on the next visual line
+    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
+    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
+      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
+      if (res) { return res }
+    }
+
+    // Case 4: Nowhere to move
+    return null
+  }
+
+  // Commands are parameter-less actions that can be performed on an
+  // editor, mostly used for keybindings.
+  var commands = {
+    selectAll: selectAll,
+    singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
+    killLine: function (cm) { return deleteNearSelection(cm, function (range) {
+      if (range.empty()) {
+        var len = getLine(cm.doc, range.head.line).text.length;
+        if (range.head.ch == len && range.head.line < cm.lastLine())
+          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
+        else
+          { return {from: range.head, to: Pos(range.head.line, len)} }
+      } else {
+        return {from: range.from(), to: range.to()}
+      }
+    }); },
+    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+      from: Pos(range.from().line, 0),
+      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
+    }); }); },
+    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+      from: Pos(range.from().line, 0), to: range.from()
+    }); }); },
+    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
+      var top = cm.charCoords(range.head, "div").top + 5;
+      var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+      return {from: leftPos, to: range.from()}
+    }); },
+    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
+      var top = cm.charCoords(range.head, "div").top + 5;
+      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+      return {from: range.from(), to: rightPos }
+    }); },
+    undo: function (cm) { return cm.undo(); },
+    redo: function (cm) { return cm.redo(); },
+    undoSelection: function (cm) { return cm.undoSelection(); },
+    redoSelection: function (cm) { return cm.redoSelection(); },
+    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
+    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
+    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
+      {origin: "+move", bias: 1}
+    ); },
+    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
+      {origin: "+move", bias: 1}
+    ); },
+    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
+      {origin: "+move", bias: -1}
+    ); },
+    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
+      var top = cm.cursorCoords(range.head, "div").top + 5;
+      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+    }, sel_move); },
+    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
+      var top = cm.cursorCoords(range.head, "div").top + 5;
+      return cm.coordsChar({left: 0, top: top}, "div")
+    }, sel_move); },
+    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
+      var top = cm.cursorCoords(range.head, "div").top + 5;
+      var pos = cm.coordsChar({left: 0, top: top}, "div");
+      if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
+      return pos
+    }, sel_move); },
+    goLineUp: function (cm) { return cm.moveV(-1, "line"); },
+    goLineDown: function (cm) { return cm.moveV(1, "line"); },
+    goPageUp: function (cm) { return cm.moveV(-1, "page"); },
+    goPageDown: function (cm) { return cm.moveV(1, "page"); },
+    goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
+    goCharRight: function (cm) { return cm.moveH(1, "char"); },
+    goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
+    goColumnRight: function (cm) { return cm.moveH(1, "column"); },
+    goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
+    goGroupRight: function (cm) { return cm.moveH(1, "group"); },
+    goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
+    goWordRight: function (cm) { return cm.moveH(1, "word"); },
+    delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
+    delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
+    delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
+    delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
+    delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
+    delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
+    indentAuto: function (cm) { return cm.indentSelection("smart"); },
+    indentMore: function (cm) { return cm.indentSelection("add"); },
+    indentLess: function (cm) { return cm.indentSelection("subtract"); },
+    insertTab: function (cm) { return cm.replaceSelection("\t"); },
+    insertSoftTab: function (cm) {
+      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+      for (var i = 0; i < ranges.length; i++) {
+        var pos = ranges[i].from();
+        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+        spaces.push(spaceStr(tabSize - col % tabSize));
+      }
+      cm.replaceSelections(spaces);
+    },
+    defaultTab: function (cm) {
+      if (cm.somethingSelected()) { cm.indentSelection("add"); }
+      else { cm.execCommand("insertTab"); }
+    },
+    // Swap the two chars left and right of each selection's head.
+    // Move cursor behind the two swapped characters afterwards.
+    //
+    // Doesn't consider line feeds a character.
+    // Doesn't scan more than one line above to find a character.
+    // Doesn't do anything on an empty line.
+    // Doesn't do anything with non-empty selections.
+    transposeChars: function (cm) { return runInOp(cm, function () {
+      var ranges = cm.listSelections(), newSel = [];
+      for (var i = 0; i < ranges.length; i++) {
+        if (!ranges[i].empty()) { continue }
+        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+        if (line) {
+          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
+          if (cur.ch > 0) {
+            cur = new Pos(cur.line, cur.ch + 1);
+            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+                            Pos(cur.line, cur.ch - 2), cur, "+transpose");
+          } else if (cur.line > cm.doc.first) {
+            var prev = getLine(cm.doc, cur.line - 1).text;
+            if (prev) {
+              cur = new Pos(cur.line, 1);
+              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+                              prev.charAt(prev.length - 1),
+                              Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
+            }
+          }
+        }
+        newSel.push(new Range(cur, cur));
+      }
+      cm.setSelections(newSel);
+    }); },
+    newlineAndIndent: function (cm) { return runInOp(cm, function () {
+      var sels = cm.listSelections();
+      for (var i = sels.length - 1; i >= 0; i--)
+        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
+      sels = cm.listSelections();
+      for (var i$1 = 0; i$1 < sels.length; i$1++)
+        { cm.indentLine(sels[i$1].from().line, null, true); }
+      ensureCursorVisible(cm);
+    }); },
+    openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
+    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
+  };
+
+
+  function lineStart(cm, lineN) {
+    var line = getLine(cm.doc, lineN);
+    var visual = visualLine(line);
+    if (visual != line) { lineN = lineNo(visual); }
+    return endOfLine(true, cm, visual, lineN, 1)
+  }
+  function lineEnd(cm, lineN) {
+    var line = getLine(cm.doc, lineN);
+    var visual = visualLineEnd(line);
+    if (visual != line) { lineN = lineNo(visual); }
+    return endOfLine(true, cm, line, lineN, -1)
+  }
+  function lineStartSmart(cm, pos) {
+    var start = lineStart(cm, pos.line);
+    var line = getLine(cm.doc, start.line);
+    var order = getOrder(line, cm.doc.direction);
+    if (!order || order[0].level == 0) {
+      var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
+      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
+    }
+    return start
+  }
+
+  // Run a handler that was bound to a key.
+  function doHandleBinding(cm, bound, dropShift) {
+    if (typeof bound == "string") {
+      bound = commands[bound];
+      if (!bound) { return false }
+    }
+    // Ensure previous input has been read, so that the handler sees a
+    // consistent view of the document
+    cm.display.input.ensurePolled();
+    var prevShift = cm.display.shift, done = false;
+    try {
+      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
+      if (dropShift) { cm.display.shift = false; }
+      done = bound(cm) != Pass;
+    } finally {
+      cm.display.shift = prevShift;
+      cm.state.suppressEdits = false;
+    }
+    return done
+  }
+
+  function lookupKeyForEditor(cm, name, handle) {
+    for (var i = 0; i < cm.state.keyMaps.length; i++) {
+      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+      if (result) { return result }
+    }
+    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+      || lookupKey(name, cm.options.keyMap, handle, cm)
+  }
+
+  // Note that, despite the name, this function is also used to check
+  // for bound mouse clicks.
+
+  var stopSeq = new Delayed;
+
+  function dispatchKey(cm, name, e, handle) {
+    var seq = cm.state.keySeq;
+    if (seq) {
+      if (isModifierKey(name)) { return "handled" }
+      if (/\'$/.test(name))
+        { cm.state.keySeq = null; }
+      else
+        { stopSeq.set(50, function () {
+          if (cm.state.keySeq == seq) {
+            cm.state.keySeq = null;
+            cm.display.input.reset();
+          }
+        }); }
+      if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
+    }
+    return dispatchKeyInner(cm, name, e, handle)
+  }
+
+  function dispatchKeyInner(cm, name, e, handle) {
+    var result = lookupKeyForEditor(cm, name, handle);
+
+    if (result == "multi")
+      { cm.state.keySeq = name; }
+    if (result == "handled")
+      { signalLater(cm, "keyHandled", cm, name, e); }
+
+    if (result == "handled" || result == "multi") {
+      e_preventDefault(e);
+      restartBlink(cm);
+    }
+
+    return !!result
+  }
+
+  // Handle a key from the keydown event.
+  function handleKeyBinding(cm, e) {
+    var name = keyName(e, true);
+    if (!name) { return false }
+
+    if (e.shiftKey && !cm.state.keySeq) {
+      // First try to resolve full name (including 'Shift-'). Failing
+      // that, see if there is a cursor-motion command (starting with
+      // 'go') bound to the keyname without 'Shift-'.
+      return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
+          || dispatchKey(cm, name, e, function (b) {
+               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+                 { return doHandleBinding(cm, b) }
+             })
+    } else {
+      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
+    }
+  }
+
+  // Handle a key from the keypress event
+  function handleCharBinding(cm, e, ch) {
+    return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
+  }
+
+  var lastStoppedKey = null;
+  function onKeyDown(e) {
+    var cm = this;
+    if (e.target && e.target != cm.display.input.getField()) { return }
+    cm.curOp.focus = activeElt();
+    if (signalDOMEvent(cm, e)) { return }
+    // IE does strange things with escape.
+    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
+    var code = e.keyCode;
+    cm.display.shift = code == 16 || e.shiftKey;
+    var handled = handleKeyBinding(cm, e);
+    if (presto) {
+      lastStoppedKey = handled ? code : null;
+      // Opera has no cut event... we try to at least catch the key combo
+      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+        { cm.replaceSelection("", null, "cut"); }
+    }
+    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
+      { document.execCommand("cut"); }
+
+    // Turn mouse into crosshair when Alt is held on Mac.
+    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+      { showCrossHair(cm); }
+  }
+
+  function showCrossHair(cm) {
+    var lineDiv = cm.display.lineDiv;
+    addClass(lineDiv, "CodeMirror-crosshair");
+
+    function up(e) {
+      if (e.keyCode == 18 || !e.altKey) {
+        rmClass(lineDiv, "CodeMirror-crosshair");
+        off(document, "keyup", up);
+        off(document, "mouseover", up);
+      }
+    }
+    on(document, "keyup", up);
+    on(document, "mouseover", up);
+  }
+
+  function onKeyUp(e) {
+    if (e.keyCode == 16) { this.doc.sel.shift = false; }
+    signalDOMEvent(this, e);
+  }
+
+  function onKeyPress(e) {
+    var cm = this;
+    if (e.target && e.target != cm.display.input.getField()) { return }
+    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
+    var keyCode = e.keyCode, charCode = e.charCode;
+    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
+    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
+    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+    // Some browsers fire keypress events for backspace
+    if (ch == "\x08") { return }
+    if (handleCharBinding(cm, e, ch)) { return }
+    cm.display.input.onKeyPress(e);
+  }
+
+  var DOUBLECLICK_DELAY = 400;
+
+  var PastClick = function(time, pos, button) {
+    this.time = time;
+    this.pos = pos;
+    this.button = button;
+  };
+
+  PastClick.prototype.compare = function (time, pos, button) {
+    return this.time + DOUBLECLICK_DELAY > time &&
+      cmp(pos, this.pos) == 0 && button == this.button
+  };
+
+  var lastClick, lastDoubleClick;
+  function clickRepeat(pos, button) {
+    var now = +new Date;
+    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
+      lastClick = lastDoubleClick = null;
+      return "triple"
+    } else if (lastClick && lastClick.compare(now, pos, button)) {
+      lastDoubleClick = new PastClick(now, pos, button);
+      lastClick = null;
+      return "double"
+    } else {
+      lastClick = new PastClick(now, pos, button);
+      lastDoubleClick = null;
+      return "single"
+    }
+  }
+
+  // A mouse down can be a single click, double click, triple click,
+  // start of selection drag, start of text drag, new cursor
+  // (ctrl-click), rectangle drag (alt-drag), or xwin
+  // middle-click-paste. Or it might be a click on something we should
+  // not interfere with, such as a scrollbar or widget.
+  function onMouseDown(e) {
+    var cm = this, display = cm.display;
+    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
+    display.input.ensurePolled();
+    display.shift = e.shiftKey;
+
+    if (eventInWidget(display, e)) {
+      if (!webkit) {
+        // Briefly turn off draggability, to allow widgets to do
+        // normal dragging things.
+        display.scroller.draggable = false;
+        setTimeout(function () { return display.scroller.draggable = true; }, 100);
+      }
+      return
+    }
+    if (clickInGutter(cm, e)) { return }
+    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
+    window.focus();
+
+    // #3261: make sure, that we're not starting a second selection
+    if (button == 1 && cm.state.selectingText)
+      { cm.state.selectingText(e); }
+
+    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }
+
+    if (button == 1) {
+      if (pos) { leftButtonDown(cm, pos, repeat, e); }
+      else if (e_target(e) == display.scroller) { e_preventDefault(e); }
+    } else if (button == 2) {
+      if (pos) { extendSelection(cm.doc, pos); }
+      setTimeout(function () { return display.input.focus(); }, 20);
+    } else if (button == 3) {
+      if (captureRightClick) { cm.display.input.onContextMenu(e); }
+      else { delayBlurEvent(cm); }
+    }
+  }
+
+  function handleMappedButton(cm, button, pos, repeat, event) {
+    var name = "Click";
+    if (repeat == "double") { name = "Double" + name; }
+    else if (repeat == "triple") { name = "Triple" + name; }
+    name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;
+
+    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
+      if (typeof bound == "string") { bound = commands[bound]; }
+      if (!bound) { return false }
+      var done = false;
+      try {
+        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
+        done = bound(cm, pos) != Pass;
+      } finally {
+        cm.state.suppressEdits = false;
+      }
+      return done
+    })
+  }
+
+  function configureMouse(cm, repeat, event) {
+    var option = cm.getOption("configureMouse");
+    var value = option ? option(cm, repeat, event) : {};
+    if (value.unit == null) {
+      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
+      value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
+    }
+    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
+    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
+    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
+    return value
+  }
+
+  function leftButtonDown(cm, pos, repeat, event) {
+    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
+    else { cm.curOp.focus = activeElt(); }
+
+    var behavior = configureMouse(cm, repeat, event);
+
+    var sel = cm.doc.sel, contained;
+    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+        repeat == "single" && (contained = sel.contains(pos)) > -1 &&
+        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
+        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
+      { leftButtonStartDrag(cm, event, pos, behavior); }
+    else
+      { leftButtonSelect(cm, event, pos, behavior); }
+  }
+
+  // Start a text drag. When it ends, see if any dragging actually
+  // happen, and treat as a click if it didn't.
+  function leftButtonStartDrag(cm, event, pos, behavior) {
+    var display = cm.display, moved = false;
+    var dragEnd = operation(cm, function (e) {
+      if (webkit) { display.scroller.draggable = false; }
+      cm.state.draggingText = false;
+      if (cm.state.delayingBlurEvent) {
+        if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; }
+        else { delayBlurEvent(cm); }
+      }
+      off(display.wrapper.ownerDocument, "mouseup", dragEnd);
+      off(display.wrapper.ownerDocument, "mousemove", mouseMove);
+      off(display.scroller, "dragstart", dragStart);
+      off(display.scroller, "drop", dragEnd);
+      if (!moved) {
+        e_preventDefault(e);
+        if (!behavior.addNew)
+          { extendSelection(cm.doc, pos, null, null, behavior.extend); }
+        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+        if ((webkit && !safari) || ie && ie_version == 9)
+          { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
+        else
+          { display.input.focus(); }
+      }
+    });
+    var mouseMove = function(e2) {
+      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
+    };
+    var dragStart = function () { return moved = true; };
+    // Let the drag handler handle this.
+    if (webkit) { display.scroller.draggable = true; }
+    cm.state.draggingText = dragEnd;
+    dragEnd.copy = !behavior.moveOnDrag;
+    on(display.wrapper.ownerDocument, "mouseup", dragEnd);
+    on(display.wrapper.ownerDocument, "mousemove", mouseMove);
+    on(display.scroller, "dragstart", dragStart);
+    on(display.scroller, "drop", dragEnd);
+
+    cm.state.delayingBlurEvent = true;
+    setTimeout(function () { return display.input.focus(); }, 20);
+    // IE's approach to draggable
+    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
+  }
+
+  function rangeForUnit(cm, pos, unit) {
+    if (unit == "char") { return new Range(pos, pos) }
+    if (unit == "word") { return cm.findWordAt(pos) }
+    if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
+    var result = unit(cm, pos);
+    return new Range(result.from, result.to)
+  }
+
+  // Normal selection, as opposed to text dragging.
+  function leftButtonSelect(cm, event, start, behavior) {
+    if (ie) { delayBlurEvent(cm); }
+    var display = cm.display, doc = cm.doc;
+    e_preventDefault(event);
+
+    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+    if (behavior.addNew && !behavior.extend) {
+      ourIndex = doc.sel.contains(start);
+      if (ourIndex > -1)
+        { ourRange = ranges[ourIndex]; }
+      else
+        { ourRange = new Range(start, start); }
+    } else {
+      ourRange = doc.sel.primary();
+      ourIndex = doc.sel.primIndex;
+    }
+
+    if (behavior.unit == "rectangle") {
+      if (!behavior.addNew) { ourRange = new Range(start, start); }
+      start = posFromMouse(cm, event, true, true);
+      ourIndex = -1;
+    } else {
+      var range = rangeForUnit(cm, start, behavior.unit);
+      if (behavior.extend)
+        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
+      else
+        { ourRange = range; }
+    }
+
+    if (!behavior.addNew) {
+      ourIndex = 0;
+      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+      startSel = doc.sel;
+    } else if (ourIndex == -1) {
+      ourIndex = ranges.length;
+      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
+                   {scroll: false, origin: "*mouse"});
+    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
+      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+                   {scroll: false, origin: "*mouse"});
+      startSel = doc.sel;
+    } else {
+      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+    }
+
+    var lastPos = start;
+    function extendTo(pos) {
+      if (cmp(lastPos, pos) == 0) { return }
+      lastPos = pos;
+
+      if (behavior.unit == "rectangle") {
+        var ranges = [], tabSize = cm.options.tabSize;
+        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+             line <= end; line++) {
+          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+          if (left == right)
+            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
+          else if (text.length > leftPos)
+            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
+        }
+        if (!ranges.length) { ranges.push(new Range(start, start)); }
+        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+                     {origin: "*mouse", scroll: false});
+        cm.scrollIntoView(pos);
+      } else {
+        var oldRange = ourRange;
+        var range = rangeForUnit(cm, pos, behavior.unit);
+        var anchor = oldRange.anchor, head;
+        if (cmp(range.anchor, anchor) > 0) {
+          head = range.head;
+          anchor = minPos(oldRange.from(), range.anchor);
+        } else {
+          head = range.anchor;
+          anchor = maxPos(oldRange.to(), range.head);
+        }
+        var ranges$1 = startSel.ranges.slice(0);
+        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
+        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
+      }
+    }
+
+    var editorSize = display.wrapper.getBoundingClientRect();
+    // Used to ensure timeout re-tries don't fire when another extend
+    // happened in the meantime (clearTimeout isn't reliable -- at
+    // least on Chrome, the timeouts still happen even when cleared,
+    // if the clear happens after their scheduled firing time).
+    var counter = 0;
+
+    function extend(e) {
+      var curCount = ++counter;
+      var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
+      if (!cur) { return }
+      if (cmp(cur, lastPos) != 0) {
+        cm.curOp.focus = activeElt();
+        extendTo(cur);
+        var visible = visibleLines(display, doc);
+        if (cur.line >= visible.to || cur.line < visible.from)
+          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
+      } else {
+        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+        if (outside) { setTimeout(operation(cm, function () {
+          if (counter != curCount) { return }
+          display.scroller.scrollTop += outside;
+          extend(e);
+        }), 50); }
+      }
+    }
+
+    function done(e) {
+      cm.state.selectingText = false;
+      counter = Infinity;
+      // If e is null or undefined we interpret this as someone trying
+      // to explicitly cancel the selection rather than the user
+      // letting go of the mouse button.
+      if (e) {
+        e_preventDefault(e);
+        display.input.focus();
+      }
+      off(display.wrapper.ownerDocument, "mousemove", move);
+      off(display.wrapper.ownerDocument, "mouseup", up);
+      doc.history.lastSelOrigin = null;
+    }
+
+    var move = operation(cm, function (e) {
+      if (e.buttons === 0 || !e_button(e)) { done(e); }
+      else { extend(e); }
+    });
+    var up = operation(cm, done);
+    cm.state.selectingText = up;
+    on(display.wrapper.ownerDocument, "mousemove", move);
+    on(display.wrapper.ownerDocument, "mouseup", up);
+  }
+
+  // Used when mouse-selecting to adjust the anchor to the proper side
+  // of a bidi jump depending on the visual position of the head.
+  function bidiSimplify(cm, range) {
+    var anchor = range.anchor;
+    var head = range.head;
+    var anchorLine = getLine(cm.doc, anchor.line);
+    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
+    var order = getOrder(anchorLine);
+    if (!order) { return range }
+    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
+    if (part.from != anchor.ch && part.to != anchor.ch) { return range }
+    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
+    if (boundary == 0 || boundary == order.length) { return range }
+
+    // Compute the relative visual position of the head compared to the
+    // anchor (<0 is to the left, >0 to the right)
+    var leftSide;
+    if (head.line != anchor.line) {
+      leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
+    } else {
+      var headIndex = getBidiPartAt(order, head.ch, head.sticky);
+      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
+      if (headIndex == boundary - 1 || headIndex == boundary)
+        { leftSide = dir < 0; }
+      else
+        { leftSide = dir > 0; }
+    }
+
+    var usePart = order[boundary + (leftSide ? -1 : 0)];
+    var from = leftSide == (usePart.level == 1);
+    var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
+    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
+  }
+
+
+  // Determines whether an event happened in the gutter, and fires the
+  // handlers for the corresponding event.
+  function gutterEvent(cm, e, type, prevent) {
+    var mX, mY;
+    if (e.touches) {
+      mX = e.touches[0].clientX;
+      mY = e.touches[0].clientY;
+    } else {
+      try { mX = e.clientX; mY = e.clientY; }
+      catch(e$1) { return false }
+    }
+    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
+    if (prevent) { e_preventDefault(e); }
+
+    var display = cm.display;
+    var lineBox = display.lineDiv.getBoundingClientRect();
+
+    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
+    mY -= lineBox.top - display.viewOffset;
+
+    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
+      var g = display.gutters.childNodes[i];
+      if (g && g.getBoundingClientRect().right >= mX) {
+        var line = lineAtHeight(cm.doc, mY);
+        var gutter = cm.display.gutterSpecs[i];
+        signal(cm, type, cm, line, gutter.className, e);
+        return e_defaultPrevented(e)
+      }
+    }
+  }
+
+  function clickInGutter(cm, e) {
+    return gutterEvent(cm, e, "gutterClick", true)
+  }
+
+  // CONTEXT MENU HANDLING
+
+  // To make the context menu work, we need to briefly unhide the
+  // textarea (making it as unobtrusive as possible) to let the
+  // right-click take effect on it.
+  function onContextMenu(cm, e) {
+    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
+    if (signalDOMEvent(cm, e, "contextmenu")) { return }
+    if (!captureRightClick) { cm.display.input.onContextMenu(e); }
+  }
+
+  function contextMenuInGutter(cm, e) {
+    if (!hasHandler(cm, "gutterContextMenu")) { return false }
+    return gutterEvent(cm, e, "gutterContextMenu", false)
+  }
+
+  function themeChanged(cm) {
+    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+    clearCaches(cm);
+  }
+
+  var Init = {toString: function(){return "CodeMirror.Init"}};
+
+  var defaults = {};
+  var optionHandlers = {};
+
+  function defineOptions(CodeMirror) {
+    var optionHandlers = CodeMirror.optionHandlers;
+
+    function option(name, deflt, handle, notOnInit) {
+      CodeMirror.defaults[name] = deflt;
+      if (handle) { optionHandlers[name] =
+        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
+    }
+
+    CodeMirror.defineOption = option;
+
+    // Passed to option handlers when there is no old value.
+    CodeMirror.Init = Init;
+
+    // These two are, on init, called from the constructor because they
+    // have to be initialized before the editor can start at all.
+    option("value", "", function (cm, val) { return cm.setValue(val); }, true);
+    option("mode", null, function (cm, val) {
+      cm.doc.modeOption = val;
+      loadMode(cm);
+    }, true);
+
+    option("indentUnit", 2, loadMode, true);
+    option("indentWithTabs", false);
+    option("smartIndent", true);
+    option("tabSize", 4, function (cm) {
+      resetModeState(cm);
+      clearCaches(cm);
+      regChange(cm);
+    }, true);
+
+    option("lineSeparator", null, function (cm, val) {
+      cm.doc.lineSep = val;
+      if (!val) { return }
+      var newBreaks = [], lineNo = cm.doc.first;
+      cm.doc.iter(function (line) {
+        for (var pos = 0;;) {
+          var found = line.text.indexOf(val, pos);
+          if (found == -1) { break }
+          pos = found + val.length;
+          newBreaks.push(Pos(lineNo, found));
+        }
+        lineNo++;
+      });
+      for (var i = newBreaks.length - 1; i >= 0; i--)
+        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
+    });
+    option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200c\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
+      cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+      if (old != Init) { cm.refresh(); }
+    });
+    option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
+    option("electricChars", true);
+    option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
+      throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
+    }, true);
+    option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
+    option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
+    option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
+    option("rtlMoveVisually", !windows);
+    option("wholeLineUpdateBefore", true);
+
+    option("theme", "default", function (cm) {
+      themeChanged(cm);
+      updateGutters(cm);
+    }, true);
+    option("keyMap", "default", function (cm, val, old) {
+      var next = getKeyMap(val);
+      var prev = old != Init && getKeyMap(old);
+      if (prev && prev.detach) { prev.detach(cm, next); }
+      if (next.attach) { next.attach(cm, prev || null); }
+    });
+    option("extraKeys", null);
+    option("configureMouse", null);
+
+    option("lineWrapping", false, wrappingChanged, true);
+    option("gutters", [], function (cm, val) {
+      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
+      updateGutters(cm);
+    }, true);
+    option("fixedGutter", true, function (cm, val) {
+      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+      cm.refresh();
+    }, true);
+    option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
+    option("scrollbarStyle", "native", function (cm) {
+      initScrollbars(cm);
+      updateScrollbars(cm);
+      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+    }, true);
+    option("lineNumbers", false, function (cm, val) {
+      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
+      updateGutters(cm);
+    }, true);
+    option("firstLineNumber", 1, updateGutters, true);
+    option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
+    option("showCursorWhenSelecting", false, updateSelection, true);
+
+    option("resetSelectionOnContextMenu", true);
+    option("lineWiseCopyCut", true);
+    option("pasteLinesPerSelection", true);
+    option("selectionsMayTouch", false);
+
+    option("readOnly", false, function (cm, val) {
+      if (val == "nocursor") {
+        onBlur(cm);
+        cm.display.input.blur();
+      }
+      cm.display.input.readOnlyChanged(val);
+    });
+
+    option("screenReaderLabel", null, function (cm, val) {
+      val = (val === '') ? null : val;
+      cm.display.input.screenReaderLabelChanged(val);
+    });
+
+    option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
+    option("dragDrop", true, dragDropChanged);
+    option("allowDropFileTypes", null);
+
+    option("cursorBlinkRate", 530);
+    option("cursorScrollMargin", 0);
+    option("cursorHeight", 1, updateSelection, true);
+    option("singleCursorHeightPerLine", true, updateSelection, true);
+    option("workTime", 100);
+    option("workDelay", 100);
+    option("flattenSpans", true, resetModeState, true);
+    option("addModeClass", false, resetModeState, true);
+    option("pollInterval", 100);
+    option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
+    option("historyEventDelay", 1250);
+    option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
+    option("maxHighlightLength", 10000, resetModeState, true);
+    option("moveInputWithCursor", true, function (cm, val) {
+      if (!val) { cm.display.input.resetPosition(); }
+    });
+
+    option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
+    option("autofocus", null);
+    option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
+    option("phrases", null);
+  }
+
+  function dragDropChanged(cm, value, old) {
+    var wasOn = old && old != Init;
+    if (!value != !wasOn) {
+      var funcs = cm.display.dragFunctions;
+      var toggle = value ? on : off;
+      toggle(cm.display.scroller, "dragstart", funcs.start);
+      toggle(cm.display.scroller, "dragenter", funcs.enter);
+      toggle(cm.display.scroller, "dragover", funcs.over);
+      toggle(cm.display.scroller, "dragleave", funcs.leave);
+      toggle(cm.display.scroller, "drop", funcs.drop);
+    }
+  }
+
+  function wrappingChanged(cm) {
+    if (cm.options.lineWrapping) {
+      addClass(cm.display.wrapper, "CodeMirror-wrap");
+      cm.display.sizer.style.minWidth = "";
+      cm.display.sizerWidth = null;
+    } else {
+      rmClass(cm.display.wrapper, "CodeMirror-wrap");
+      findMaxLine(cm);
+    }
+    estimateLineHeights(cm);
+    regChange(cm);
+    clearCaches(cm);
+    setTimeout(function () { return updateScrollbars(cm); }, 100);
+  }
+
+  // A CodeMirror instance represents an editor. This is the object
+  // that user code is usually dealing with.
+
+  function CodeMirror(place, options) {
+    var this$1 = this;
+
+    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
+
+    this.options = options = options ? copyObj(options) : {};
+    // Determine effective options based on given values and defaults.
+    copyObj(defaults, options, false);
+
+    var doc = options.value;
+    if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
+    else if (options.mode) { doc.modeOption = options.mode; }
+    this.doc = doc;
+
+    var input = new CodeMirror.inputStyles[options.inputStyle](this);
+    var display = this.display = new Display(place, doc, input, options);
+    display.wrapper.CodeMirror = this;
+    themeChanged(this);
+    if (options.lineWrapping)
+      { this.display.wrapper.className += " CodeMirror-wrap"; }
+    initScrollbars(this);
+
+    this.state = {
+      keyMaps: [],  // stores maps added by addKeyMap
+      overlays: [], // highlighting overlays, as added by addOverlay
+      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
+      overwrite: false,
+      delayingBlurEvent: false,
+      focused: false,
+      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
+      selectingText: false,
+      draggingText: false,
+      highlight: new Delayed(), // stores highlight worker timeout
+      keySeq: null,  // Unfinished key sequence
+      specialChars: null
+    };
+
+    if (options.autofocus && !mobile) { display.input.focus(); }
+
+    // Override magic textarea content restore that IE sometimes does
+    // on our hidden textarea on reload
+    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }
+
+    registerEventHandlers(this);
+    ensureGlobalHandlers();
+
+    startOperation(this);
+    this.curOp.forceUpdate = true;
+    attachDoc(this, doc);
+
+    if ((options.autofocus && !mobile) || this.hasFocus())
+      { setTimeout(function () {
+        if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); }
+      }, 20); }
+    else
+      { onBlur(this); }
+
+    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
+      { optionHandlers[opt](this, options[opt], Init); } }
+    maybeUpdateLineNumberWidth(this);
+    if (options.finishInit) { options.finishInit(this); }
+    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
+    endOperation(this);
+    // Suppress optimizelegibility in Webkit, since it breaks text
+    // measuring on line wrapping boundaries.
+    if (webkit && options.lineWrapping &&
+        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+      { display.lineDiv.style.textRendering = "auto"; }
+  }
+
+  // The default configuration options.
+  CodeMirror.defaults = defaults;
+  // Functions to run when options are changed.
+  CodeMirror.optionHandlers = optionHandlers;
+
+  // Attach the necessary event handlers when initializing the editor
+  function registerEventHandlers(cm) {
+    var d = cm.display;
+    on(d.scroller, "mousedown", operation(cm, onMouseDown));
+    // Older IE's will not fire a second mousedown for a double click
+    if (ie && ie_version < 11)
+      { on(d.scroller, "dblclick", operation(cm, function (e) {
+        if (signalDOMEvent(cm, e)) { return }
+        var pos = posFromMouse(cm, e);
+        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
+        e_preventDefault(e);
+        var word = cm.findWordAt(pos);
+        extendSelection(cm.doc, word.anchor, word.head);
+      })); }
+    else
+      { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
+    // Some browsers fire contextmenu *after* opening the menu, at
+    // which point we can't mess with it anymore. Context menu is
+    // handled in onMouseDown for these browsers.
+    on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
+    on(d.input.getField(), "contextmenu", function (e) {
+      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
+    });
+
+    // Used to suppress mouse event handling when a touch happens
+    var touchFinished, prevTouch = {end: 0};
+    function finishTouch() {
+      if (d.activeTouch) {
+        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
+        prevTouch = d.activeTouch;
+        prevTouch.end = +new Date;
+      }
+    }
+    function isMouseLikeTouchEvent(e) {
+      if (e.touches.length != 1) { return false }
+      var touch = e.touches[0];
+      return touch.radiusX <= 1 && touch.radiusY <= 1
+    }
+    function farAway(touch, other) {
+      if (other.left == null) { return true }
+      var dx = other.left - touch.left, dy = other.top - touch.top;
+      return dx * dx + dy * dy > 20 * 20
+    }
+    on(d.scroller, "touchstart", function (e) {
+      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
+        d.input.ensurePolled();
+        clearTimeout(touchFinished);
+        var now = +new Date;
+        d.activeTouch = {start: now, moved: false,
+                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
+        if (e.touches.length == 1) {
+          d.activeTouch.left = e.touches[0].pageX;
+          d.activeTouch.top = e.touches[0].pageY;
+        }
+      }
+    });
+    on(d.scroller, "touchmove", function () {
+      if (d.activeTouch) { d.activeTouch.moved = true; }
+    });
+    on(d.scroller, "touchend", function (e) {
+      var touch = d.activeTouch;
+      if (touch && !eventInWidget(d, e) && touch.left != null &&
+          !touch.moved && new Date - touch.start < 300) {
+        var pos = cm.coordsChar(d.activeTouch, "page"), range;
+        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+          { range = new Range(pos, pos); }
+        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+          { range = cm.findWordAt(pos); }
+        else // Triple tap
+          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
+        cm.setSelection(range.anchor, range.head);
+        cm.focus();
+        e_preventDefault(e);
+      }
+      finishTouch();
+    });
+    on(d.scroller, "touchcancel", finishTouch);
+
+    // Sync scrolling between fake scrollbars and real scrollable
+    // area, ensure viewport is updated when scrolling.
+    on(d.scroller, "scroll", function () {
+      if (d.scroller.clientHeight) {
+        updateScrollTop(cm, d.scroller.scrollTop);
+        setScrollLeft(cm, d.scroller.scrollLeft, true);
+        signal(cm, "scroll", cm);
+      }
+    });
+
+    // Listen to wheel events in order to try and update the viewport on time.
+    on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
+    on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });
+
+    // Prevent wrapper from ever scrolling
+    on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+    d.dragFunctions = {
+      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
+      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+      start: function (e) { return onDragStart(cm, e); },
+      drop: operation(cm, onDrop),
+      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
+    };
+
+    var inp = d.input.getField();
+    on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
+    on(inp, "keydown", operation(cm, onKeyDown));
+    on(inp, "keypress", operation(cm, onKeyPress));
+    on(inp, "focus", function (e) { return onFocus(cm, e); });
+    on(inp, "blur", function (e) { return onBlur(cm, e); });
+  }
+
+  var initHooks = [];
+  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };
+
+  // Indent the given line. The how parameter can be "smart",
+  // "add"/null, "subtract", or "prev". When aggressive is false
+  // (typically set to true for forced single-line indents), empty
+  // lines are not indented, and places where the mode returns Pass
+  // are left alone.
+  function indentLine(cm, n, how, aggressive) {
+    var doc = cm.doc, state;
+    if (how == null) { how = "add"; }
+    if (how == "smart") {
+      // Fall back to "prev" when the mode doesn't have an indentation
+      // method.
+      if (!doc.mode.indent) { how = "prev"; }
+      else { state = getContextBefore(cm, n).state; }
+    }
+
+    var tabSize = cm.options.tabSize;
+    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+    if (line.stateAfter) { line.stateAfter = null; }
+    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+    if (!aggressive && !/\S/.test(line.text)) {
+      indentation = 0;
+      how = "not";
+    } else if (how == "smart") {
+      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+      if (indentation == Pass || indentation > 150) {
+        if (!aggressive) { return }
+        how = "prev";
+      }
+    }
+    if (how == "prev") {
+      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
+      else { indentation = 0; }
+    } else if (how == "add") {
+      indentation = curSpace + cm.options.indentUnit;
+    } else if (how == "subtract") {
+      indentation = curSpace - cm.options.indentUnit;
+    } else if (typeof how == "number") {
+      indentation = curSpace + how;
+    }
+    indentation = Math.max(0, indentation);
+
+    var indentString = "", pos = 0;
+    if (cm.options.indentWithTabs)
+      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
+    if (pos < indentation) { indentString += spaceStr(indentation - pos); }
+
+    if (indentString != curSpaceString) {
+      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+      line.stateAfter = null;
+      return true
+    } else {
+      // Ensure that, if the cursor was in the whitespace at the start
+      // of the line, it is moved to the end of that space.
+      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
+        var range = doc.sel.ranges[i$1];
+        if (range.head.line == n && range.head.ch < curSpaceString.length) {
+          var pos$1 = Pos(n, curSpaceString.length);
+          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
+          break
+        }
+      }
+    }
+  }
+
+  // This will be set to a {lineWise: bool, text: [string]} object, so
+  // that, when pasting, we know what kind of selections the copied
+  // text was made out of.
+  var lastCopied = null;
+
+  function setLastCopied(newLastCopied) {
+    lastCopied = newLastCopied;
+  }
+
+  function applyTextInput(cm, inserted, deleted, sel, origin) {
+    var doc = cm.doc;
+    cm.display.shift = false;
+    if (!sel) { sel = doc.sel; }
+
+    var recent = +new Date - 200;
+    var paste = origin == "paste" || cm.state.pasteIncoming > recent;
+    var textLines = splitLinesAuto(inserted), multiPaste = null;
+    // When pasting N lines into N selections, insert one line per selection
+    if (paste && sel.ranges.length > 1) {
+      if (lastCopied && lastCopied.text.join("\n") == inserted) {
+        if (sel.ranges.length % lastCopied.text.length == 0) {
+          multiPaste = [];
+          for (var i = 0; i < lastCopied.text.length; i++)
+            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }
+        }
+      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
+        multiPaste = map(textLines, function (l) { return [l]; });
+      }
+    }
+
+    var updateInput = cm.curOp.updateInput;
+    // Normal behavior is to insert the new text into every selection
+    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
+      var range = sel.ranges[i$1];
+      var from = range.from(), to = range.to();
+      if (range.empty()) {
+        if (deleted && deleted > 0) // Handle deletion
+          { from = Pos(from.line, from.ch - deleted); }
+        else if (cm.state.overwrite && !paste) // Handle overwrite
+          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
+        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
+          { from = to = Pos(from.line, 0); }
+      }
+      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
+                         origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
+      makeChange(cm.doc, changeEvent);
+      signalLater(cm, "inputRead", cm, changeEvent);
+    }
+    if (inserted && !paste)
+      { triggerElectric(cm, inserted); }
+
+    ensureCursorVisible(cm);
+    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
+    cm.curOp.typing = true;
+    cm.state.pasteIncoming = cm.state.cutIncoming = -1;
+  }
+
+  function handlePaste(e, cm) {
+    var pasted = e.clipboardData && e.clipboardData.getData("Text");
+    if (pasted) {
+      e.preventDefault();
+      if (!cm.isReadOnly() && !cm.options.disableInput)
+        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
+      return true
+    }
+  }
+
+  function triggerElectric(cm, inserted) {
+    // When an 'electric' character is inserted, immediately trigger a reindent
+    if (!cm.options.electricChars || !cm.options.smartIndent) { return }
+    var sel = cm.doc.sel;
+
+    for (var i = sel.ranges.length - 1; i >= 0; i--) {
+      var range = sel.ranges[i];
+      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
+      var mode = cm.getModeAt(range.head);
+      var indented = false;
+      if (mode.electricChars) {
+        for (var j = 0; j < mode.electricChars.length; j++)
+          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+            indented = indentLine(cm, range.head.line, "smart");
+            break
+          } }
+      } else if (mode.electricInput) {
+        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+          { indented = indentLine(cm, range.head.line, "smart"); }
+      }
+      if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
+    }
+  }
+
+  function copyableRanges(cm) {
+    var text = [], ranges = [];
+    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+      var line = cm.doc.sel.ranges[i].head.line;
+      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+      ranges.push(lineRange);
+      text.push(cm.getRange(lineRange.anchor, lineRange.head));
+    }
+    return {text: text, ranges: ranges}
+  }
+
+  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
+    field.setAttribute("autocorrect", autocorrect ? "" : "off");
+    field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
+    field.setAttribute("spellcheck", !!spellcheck);
+  }
+
+  function hiddenTextarea() {
+    var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
+    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+    // The textarea is kept positioned near the cursor to prevent the
+    // fact that it'll be scrolled into view on input from scrolling
+    // our fake cursor out of view. On webkit, when wrap=off, paste is
+    // very slow. So make the area wide instead.
+    if (webkit) { te.style.width = "1000px"; }
+    else { te.setAttribute("wrap", "off"); }
+    // If border: 0; -- iOS fails to open keyboard (issue #1287)
+    if (ios) { te.style.border = "1px solid black"; }
+    disableBrowserMagic(te);
+    return div
+  }
+
+  // The publicly visible API. Note that methodOp(f) means
+  // 'wrap f in an operation, performed on its `this` parameter'.
+
+  // This is not the complete set of editor methods. Most of the
+  // methods defined on the Doc type are also injected into
+  // CodeMirror.prototype, for backwards compatibility and
+  // convenience.
+
+  function addEditorMethods(CodeMirror) {
+    var optionHandlers = CodeMirror.optionHandlers;
+
+    var helpers = CodeMirror.helpers = {};
+
+    CodeMirror.prototype = {
+      constructor: CodeMirror,
+      focus: function(){window.focus(); this.display.input.focus();},
+
+      setOption: function(option, value) {
+        var options = this.options, old = options[option];
+        if (options[option] == value && option != "mode") { return }
+        options[option] = value;
+        if (optionHandlers.hasOwnProperty(option))
+          { operation(this, optionHandlers[option])(this, value, old); }
+        signal(this, "optionChange", this, option);
+      },
+
+      getOption: function(option) {return this.options[option]},
+      getDoc: function() {return this.doc},
+
+      addKeyMap: function(map, bottom) {
+        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+      },
+      removeKeyMap: function(map) {
+        var maps = this.state.keyMaps;
+        for (var i = 0; i < maps.length; ++i)
+          { if (maps[i] == map || maps[i].name == map) {
+            maps.splice(i, 1);
+            return true
+          } }
+      },
+
+      addOverlay: methodOp(function(spec, options) {
+        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+        if (mode.startState) { throw new Error("Overlays may not be stateful.") }
+        insertSorted(this.state.overlays,
+                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,
+                      priority: (options && options.priority) || 0},
+                     function (overlay) { return overlay.priority; });
+        this.state.modeGen++;
+        regChange(this);
+      }),
+      removeOverlay: methodOp(function(spec) {
+        var overlays = this.state.overlays;
+        for (var i = 0; i < overlays.length; ++i) {
+          var cur = overlays[i].modeSpec;
+          if (cur == spec || typeof spec == "string" && cur.name == spec) {
+            overlays.splice(i, 1);
+            this.state.modeGen++;
+            regChange(this);
+            return
+          }
+        }
+      }),
+
+      indentLine: methodOp(function(n, dir, aggressive) {
+        if (typeof dir != "string" && typeof dir != "number") {
+          if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
+          else { dir = dir ? "add" : "subtract"; }
+        }
+        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
+      }),
+      indentSelection: methodOp(function(how) {
+        var ranges = this.doc.sel.ranges, end = -1;
+        for (var i = 0; i < ranges.length; i++) {
+          var range = ranges[i];
+          if (!range.empty()) {
+            var from = range.from(), to = range.to();
+            var start = Math.max(end, from.line);
+            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+            for (var j = start; j < end; ++j)
+              { indentLine(this, j, how); }
+            var newRanges = this.doc.sel.ranges;
+            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
+          } else if (range.head.line > end) {
+            indentLine(this, range.head.line, how, true);
+            end = range.head.line;
+            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
+          }
+        }
+      }),
+
+      // Fetch the parser token for a given character. Useful for hacks
+      // that want to inspect the mode state (say, for completion).
+      getTokenAt: function(pos, precise) {
+        return takeToken(this, pos, precise)
+      },
+
+      getLineTokens: function(line, precise) {
+        return takeToken(this, Pos(line), precise, true)
+      },
+
+      getTokenTypeAt: function(pos) {
+        pos = clipPos(this.doc, pos);
+        var styles = getLineStyles(this, getLine(this.doc, pos.line));
+        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+        var type;
+        if (ch == 0) { type = styles[2]; }
+        else { for (;;) {
+          var mid = (before + after) >> 1;
+          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
+          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
+          else { type = styles[mid * 2 + 2]; break }
+        } }
+        var cut = type ? type.indexOf("overlay ") : -1;
+        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
+      },
+
+      getModeAt: function(pos) {
+        var mode = this.doc.mode;
+        if (!mode.innerMode) { return mode }
+        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
+      },
+
+      getHelper: function(pos, type) {
+        return this.getHelpers(pos, type)[0]
+      },
+
+      getHelpers: function(pos, type) {
+        var found = [];
+        if (!helpers.hasOwnProperty(type)) { return found }
+        var help = helpers[type], mode = this.getModeAt(pos);
+        if (typeof mode[type] == "string") {
+          if (help[mode[type]]) { found.push(help[mode[type]]); }
+        } else if (mode[type]) {
+          for (var i = 0; i < mode[type].length; i++) {
+            var val = help[mode[type][i]];
+            if (val) { found.push(val); }
+          }
+        } else if (mode.helperType && help[mode.helperType]) {
+          found.push(help[mode.helperType]);
+        } else if (help[mode.name]) {
+          found.push(help[mode.name]);
+        }
+        for (var i$1 = 0; i$1 < help._global.length; i$1++) {
+          var cur = help._global[i$1];
+          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+            { found.push(cur.val); }
+        }
+        return found
+      },
+
+      getStateAfter: function(line, precise) {
+        var doc = this.doc;
+        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+        return getContextBefore(this, line + 1, precise).state
+      },
+
+      cursorCoords: function(start, mode) {
+        var pos, range = this.doc.sel.primary();
+        if (start == null) { pos = range.head; }
+        else if (typeof start == "object") { pos = clipPos(this.doc, start); }
+        else { pos = start ? range.from() : range.to(); }
+        return cursorCoords(this, pos, mode || "page")
+      },
+
+      charCoords: function(pos, mode) {
+        return charCoords(this, clipPos(this.doc, pos), mode || "page")
+      },
+
+      coordsChar: function(coords, mode) {
+        coords = fromCoordSystem(this, coords, mode || "page");
+        return coordsChar(this, coords.left, coords.top)
+      },
+
+      lineAtHeight: function(height, mode) {
+        height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+        return lineAtHeight(this.doc, height + this.display.viewOffset)
+      },
+      heightAtLine: function(line, mode, includeWidgets) {
+        var end = false, lineObj;
+        if (typeof line == "number") {
+          var last = this.doc.first + this.doc.size - 1;
+          if (line < this.doc.first) { line = this.doc.first; }
+          else if (line > last) { line = last; end = true; }
+          lineObj = getLine(this.doc, line);
+        } else {
+          lineObj = line;
+        }
+        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
+          (end ? this.doc.height - heightAtLine(lineObj) : 0)
+      },
+
+      defaultTextHeight: function() { return textHeight(this.display) },
+      defaultCharWidth: function() { return charWidth(this.display) },
+
+      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
+
+      addWidget: function(pos, node, scroll, vert, horiz) {
+        var display = this.display;
+        pos = cursorCoords(this, clipPos(this.doc, pos));
+        var top = pos.bottom, left = pos.left;
+        node.style.position = "absolute";
+        node.setAttribute("cm-ignore-events", "true");
+        this.display.input.setUneditable(node);
+        display.sizer.appendChild(node);
+        if (vert == "over") {
+          top = pos.top;
+        } else if (vert == "above" || vert == "near") {
+          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+          // Default to positioning above (if specified and possible); otherwise default to positioning below
+          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+            { top = pos.top - node.offsetHeight; }
+          else if (pos.bottom + node.offsetHeight <= vspace)
+            { top = pos.bottom; }
+          if (left + node.offsetWidth > hspace)
+            { left = hspace - node.offsetWidth; }
+        }
+        node.style.top = top + "px";
+        node.style.left = node.style.right = "";
+        if (horiz == "right") {
+          left = display.sizer.clientWidth - node.offsetWidth;
+          node.style.right = "0px";
+        } else {
+          if (horiz == "left") { left = 0; }
+          else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
+          node.style.left = left + "px";
+        }
+        if (scroll)
+          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
+      },
+
+      triggerOnKeyDown: methodOp(onKeyDown),
+      triggerOnKeyPress: methodOp(onKeyPress),
+      triggerOnKeyUp: onKeyUp,
+      triggerOnMouseDown: methodOp(onMouseDown),
+
+      execCommand: function(cmd) {
+        if (commands.hasOwnProperty(cmd))
+          { return commands[cmd].call(null, this) }
+      },
+
+      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+      findPosH: function(from, amount, unit, visually) {
+        var dir = 1;
+        if (amount < 0) { dir = -1; amount = -amount; }
+        var cur = clipPos(this.doc, from);
+        for (var i = 0; i < amount; ++i) {
+          cur = findPosH(this.doc, cur, dir, unit, visually);
+          if (cur.hitSide) { break }
+        }
+        return cur
+      },
+
+      moveH: methodOp(function(dir, unit) {
+        var this$1 = this;
+
+        this.extendSelectionsBy(function (range) {
+          if (this$1.display.shift || this$1.doc.extend || range.empty())
+            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
+          else
+            { return dir < 0 ? range.from() : range.to() }
+        }, sel_move);
+      }),
+
+      deleteH: methodOp(function(dir, unit) {
+        var sel = this.doc.sel, doc = this.doc;
+        if (sel.somethingSelected())
+          { doc.replaceSelection("", null, "+delete"); }
+        else
+          { deleteNearSelection(this, function (range) {
+            var other = findPosH(doc, range.head, dir, unit, false);
+            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
+          }); }
+      }),
+
+      findPosV: function(from, amount, unit, goalColumn) {
+        var dir = 1, x = goalColumn;
+        if (amount < 0) { dir = -1; amount = -amount; }
+        var cur = clipPos(this.doc, from);
+        for (var i = 0; i < amount; ++i) {
+          var coords = cursorCoords(this, cur, "div");
+          if (x == null) { x = coords.left; }
+          else { coords.left = x; }
+          cur = findPosV(this, coords, dir, unit);
+          if (cur.hitSide) { break }
+        }
+        return cur
+      },
+
+      moveV: methodOp(function(dir, unit) {
+        var this$1 = this;
+
+        var doc = this.doc, goals = [];
+        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
+        doc.extendSelectionsBy(function (range) {
+          if (collapse)
+            { return dir < 0 ? range.from() : range.to() }
+          var headPos = cursorCoords(this$1, range.head, "div");
+          if (range.goalColumn != null) { headPos.left = range.goalColumn; }
+          goals.push(headPos.left);
+          var pos = findPosV(this$1, headPos, dir, unit);
+          if (unit == "page" && range == doc.sel.primary())
+            { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
+          return pos
+        }, sel_move);
+        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
+          { doc.sel.ranges[i].goalColumn = goals[i]; } }
+      }),
+
+      // Find the word at the given position (as returned by coordsChar).
+      findWordAt: function(pos) {
+        var doc = this.doc, line = getLine(doc, pos.line).text;
+        var start = pos.ch, end = pos.ch;
+        if (line) {
+          var helper = this.getHelper(pos, "wordChars");
+          if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
+          var startChar = line.charAt(start);
+          var check = isWordChar(startChar, helper)
+            ? function (ch) { return isWordChar(ch, helper); }
+            : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
+            : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
+          while (start > 0 && check(line.charAt(start - 1))) { --start; }
+          while (end < line.length && check(line.charAt(end))) { ++end; }
+        }
+        return new Range(Pos(pos.line, start), Pos(pos.line, end))
+      },
+
+      toggleOverwrite: function(value) {
+        if (value != null && value == this.state.overwrite) { return }
+        if (this.state.overwrite = !this.state.overwrite)
+          { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
+        else
+          { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
+
+        signal(this, "overwriteToggle", this, this.state.overwrite);
+      },
+      hasFocus: function() { return this.display.input.getField() == activeElt() },
+      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
+
+      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
+      getScrollInfo: function() {
+        var scroller = this.display.scroller;
+        return {left: scroller.scrollLeft, top: scroller.scrollTop,
+                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
+      },
+
+      scrollIntoView: methodOp(function(range, margin) {
+        if (range == null) {
+          range = {from: this.doc.sel.primary().head, to: null};
+          if (margin == null) { margin = this.options.cursorScrollMargin; }
+        } else if (typeof range == "number") {
+          range = {from: Pos(range, 0), to: null};
+        } else if (range.from == null) {
+          range = {from: range, to: null};
+        }
+        if (!range.to) { range.to = range.from; }
+        range.margin = margin || 0;
+
+        if (range.from.line != null) {
+          scrollToRange(this, range);
+        } else {
+          scrollToCoordsRange(this, range.from, range.to, range.margin);
+        }
+      }),
+
+      setSize: methodOp(function(width, height) {
+        var this$1 = this;
+
+        var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
+        if (width != null) { this.display.wrapper.style.width = interpret(width); }
+        if (height != null) { this.display.wrapper.style.height = interpret(height); }
+        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
+        var lineNo = this.display.viewFrom;
+        this.doc.iter(lineNo, this.display.viewTo, function (line) {
+          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
+            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
+          ++lineNo;
+        });
+        this.curOp.forceUpdate = true;
+        signal(this, "refresh", this);
+      }),
+
+      operation: function(f){return runInOp(this, f)},
+      startOperation: function(){return startOperation(this)},
+      endOperation: function(){return endOperation(this)},
+
+      refresh: methodOp(function() {
+        var oldHeight = this.display.cachedTextHeight;
+        regChange(this);
+        this.curOp.forceUpdate = true;
+        clearCaches(this);
+        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
+        updateGutterSpace(this.display);
+        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
+          { estimateLineHeights(this); }
+        signal(this, "refresh", this);
+      }),
+
+      swapDoc: methodOp(function(doc) {
+        var old = this.doc;
+        old.cm = null;
+        // Cancel the current text selection if any (#5821)
+        if (this.state.selectingText) { this.state.selectingText(); }
+        attachDoc(this, doc);
+        clearCaches(this);
+        this.display.input.reset();
+        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
+        this.curOp.forceScroll = true;
+        signalLater(this, "swapDoc", this, old);
+        return old
+      }),
+
+      phrase: function(phraseText) {
+        var phrases = this.options.phrases;
+        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
+      },
+
+      getInputField: function(){return this.display.input.getField()},
+      getWrapperElement: function(){return this.display.wrapper},
+      getScrollerElement: function(){return this.display.scroller},
+      getGutterElement: function(){return this.display.gutters}
+    };
+    eventMixin(CodeMirror);
+
+    CodeMirror.registerHelper = function(type, name, value) {
+      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
+      helpers[type][name] = value;
+    };
+    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+      CodeMirror.registerHelper(type, name, value);
+      helpers[type]._global.push({pred: predicate, val: value});
+    };
+  }
+
+  // Used for horizontal relative motion. Dir is -1 or 1 (left or
+  // right), unit can be "codepoint", "char", "column" (like char, but
+  // doesn't cross line boundaries), "word" (across next word), or
+  // "group" (to the start of next group of word or
+  // non-word-non-whitespace chars). The visually param controls
+  // whether, in right-to-left text, direction 1 means to move towards
+  // the next index in the string, or towards the character to the right
+  // of the current position. The resulting position will have a
+  // hitSide=true property if it reached the end of the document.
+  function findPosH(doc, pos, dir, unit, visually) {
+    var oldPos = pos;
+    var origDir = dir;
+    var lineObj = getLine(doc, pos.line);
+    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
+    function findNextLine() {
+      var l = pos.line + lineDir;
+      if (l < doc.first || l >= doc.first + doc.size) { return false }
+      pos = new Pos(l, pos.ch, pos.sticky);
+      return lineObj = getLine(doc, l)
+    }
+    function moveOnce(boundToLine) {
+      var next;
+      if (unit == "codepoint") {
+        var ch = lineObj.text.charCodeAt(pos.ch + (unit > 0 ? 0 : -1));
+        if (isNaN(ch)) { next = null; }
+        else { next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (ch >= 0xD800 && ch < 0xDC00 ? 2 : 1))),
+                            -dir); }
+      } else if (visually) {
+        next = moveVisually(doc.cm, lineObj, pos, dir);
+      } else {
+        next = moveLogically(lineObj, pos, dir);
+      }
+      if (next == null) {
+        if (!boundToLine && findNextLine())
+          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
+        else
+          { return false }
+      } else {
+        pos = next;
+      }
+      return true
+    }
+
+    if (unit == "char" || unit == "codepoint") {
+      moveOnce();
+    } else if (unit == "column") {
+      moveOnce(true);
+    } else if (unit == "word" || unit == "group") {
+      var sawType = null, group = unit == "group";
+      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+      for (var first = true;; first = false) {
+        if (dir < 0 && !moveOnce(!first)) { break }
+        var cur = lineObj.text.charAt(pos.ch) || "\n";
+        var type = isWordChar(cur, helper) ? "w"
+          : group && cur == "\n" ? "n"
+          : !group || /\s/.test(cur) ? null
+          : "p";
+        if (group && !first && !type) { type = "s"; }
+        if (sawType && sawType != type) {
+          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
+          break
+        }
+
+        if (type) { sawType = type; }
+        if (dir > 0 && !moveOnce(!first)) { break }
+      }
+    }
+    var result = skipAtomic(doc, pos, oldPos, origDir, true);
+    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
+    return result
+  }
+
+  // For relative vertical movement. Dir may be -1 or 1. Unit can be
+  // "page" or "line". The resulting position will have a hitSide=true
+  // property if it reached the end of the document.
+  function findPosV(cm, pos, dir, unit) {
+    var doc = cm.doc, x = pos.left, y;
+    if (unit == "page") {
+      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
+      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;
+
+    } else if (unit == "line") {
+      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+    }
+    var target;
+    for (;;) {
+      target = coordsChar(cm, x, y);
+      if (!target.outside) { break }
+      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
+      y += dir * 5;
+    }
+    return target
+  }
+
+  // CONTENTEDITABLE INPUT STYLE
+
+  var ContentEditableInput = function(cm) {
+    this.cm = cm;
+    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+    this.polling = new Delayed();
+    this.composing = null;
+    this.gracePeriod = false;
+    this.readDOMTimeout = null;
+  };
+
+  ContentEditableInput.prototype.init = function (display) {
+      var this$1 = this;
+
+    var input = this, cm = input.cm;
+    var div = input.div = display.lineDiv;
+    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);
+
+    function belongsToInput(e) {
+      for (var t = e.target; t; t = t.parentNode) {
+        if (t == div) { return true }
+        if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
+      }
+      return false
+    }
+
+    on(div, "paste", function (e) {
+      if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+      // IE doesn't fire input events, so we schedule a read for the pasted content in this way
+      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
+    });
+
+    on(div, "compositionstart", function (e) {
+      this$1.composing = {data: e.data, done: false};
+    });
+    on(div, "compositionupdate", function (e) {
+      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
+    });
+    on(div, "compositionend", function (e) {
+      if (this$1.composing) {
+        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
+        this$1.composing.done = true;
+      }
+    });
+
+    on(div, "touchstart", function () { return input.forceCompositionEnd(); });
+
+    on(div, "input", function () {
+      if (!this$1.composing) { this$1.readFromDOMSoon(); }
+    });
+
+    function onCopyCut(e) {
+      if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
+      if (cm.somethingSelected()) {
+        setLastCopied({lineWise: false, text: cm.getSelections()});
+        if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
+      } else if (!cm.options.lineWiseCopyCut) {
+        return
+      } else {
+        var ranges = copyableRanges(cm);
+        setLastCopied({lineWise: true, text: ranges.text});
+        if (e.type == "cut") {
+          cm.operation(function () {
+            cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+            cm.replaceSelection("", null, "cut");
+          });
+        }
+      }
+      if (e.clipboardData) {
+        e.clipboardData.clearData();
+        var content = lastCopied.text.join("\n");
+        // iOS exposes the clipboard API, but seems to discard content inserted into it
+        e.clipboardData.setData("Text", content);
+        if (e.clipboardData.getData("Text") == content) {
+          e.preventDefault();
+          return
+        }
+      }
+      // Old-fashioned briefly-focus-a-textarea hack
+      var kludge = hiddenTextarea(), te = kludge.firstChild;
+      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+      te.value = lastCopied.text.join("\n");
+      var hadFocus = document.activeElement;
+      selectInput(te);
+      setTimeout(function () {
+        cm.display.lineSpace.removeChild(kludge);
+        hadFocus.focus();
+        if (hadFocus == div) { input.showPrimarySelection(); }
+      }, 50);
+    }
+    on(div, "copy", onCopyCut);
+    on(div, "cut", onCopyCut);
+  };
+
+  ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
+    // Label for screenreaders, accessibility
+    if(label) {
+      this.div.setAttribute('aria-label', label);
+    } else {
+      this.div.removeAttribute('aria-label');
+    }
+  };
+
+  ContentEditableInput.prototype.prepareSelection = function () {
+    var result = prepareSelection(this.cm, false);
+    result.focus = document.activeElement == this.div;
+    return result
+  };
+
+  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
+    if (!info || !this.cm.display.view.length) { return }
+    if (info.focus || takeFocus) { this.showPrimarySelection(); }
+    this.showMultipleSelections(info);
+  };
+
+  ContentEditableInput.prototype.getSelection = function () {
+    return this.cm.display.wrapper.ownerDocument.getSelection()
+  };
+
+  ContentEditableInput.prototype.showPrimarySelection = function () {
+    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
+    var from = prim.from(), to = prim.to();
+
+    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
+      sel.removeAllRanges();
+      return
+    }
+
+    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
+    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+        cmp(minPos(curAnchor, curFocus), from) == 0 &&
+        cmp(maxPos(curAnchor, curFocus), to) == 0)
+      { return }
+
+    var view = cm.display.view;
+    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
+        {node: view[0].measure.map[2], offset: 0};
+    var end = to.line < cm.display.viewTo && posToDOM(cm, to);
+    if (!end) {
+      var measure = view[view.length - 1].measure;
+      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
+    }
+
+    if (!start || !end) {
+      sel.removeAllRanges();
+      return
+    }
+
+    var old = sel.rangeCount && sel.getRangeAt(0), rng;
+    try { rng = range(start.node, start.offset, end.offset, end.node); }
+    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+    if (rng) {
+      if (!gecko && cm.state.focused) {
+        sel.collapse(start.node, start.offset);
+        if (!rng.collapsed) {
+          sel.removeAllRanges();
+          sel.addRange(rng);
+        }
+      } else {
+        sel.removeAllRanges();
+        sel.addRange(rng);
+      }
+      if (old && sel.anchorNode == null) { sel.addRange(old); }
+      else if (gecko) { this.startGracePeriod(); }
+    }
+    this.rememberSelection();
+  };
+
+  ContentEditableInput.prototype.startGracePeriod = function () {
+      var this$1 = this;
+
+    clearTimeout(this.gracePeriod);
+    this.gracePeriod = setTimeout(function () {
+      this$1.gracePeriod = false;
+      if (this$1.selectionChanged())
+        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
+    }, 20);
+  };
+
+  ContentEditableInput.prototype.showMultipleSelections = function (info) {
+    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+  };
+
+  ContentEditableInput.prototype.rememberSelection = function () {
+    var sel = this.getSelection();
+    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+  };
+
+  ContentEditableInput.prototype.selectionInEditor = function () {
+    var sel = this.getSelection();
+    if (!sel.rangeCount) { return false }
+    var node = sel.getRangeAt(0).commonAncestorContainer;
+    return contains(this.div, node)
+  };
+
+  ContentEditableInput.prototype.focus = function () {
+    if (this.cm.options.readOnly != "nocursor") {
+      if (!this.selectionInEditor() || document.activeElement != this.div)
+        { this.showSelection(this.prepareSelection(), true); }
+      this.div.focus();
+    }
+  };
+  ContentEditableInput.prototype.blur = function () { this.div.blur(); };
+  ContentEditableInput.prototype.getField = function () { return this.div };
+
+  ContentEditableInput.prototype.supportsTouch = function () { return true };
+
+  ContentEditableInput.prototype.receivedFocus = function () {
+    var input = this;
+    if (this.selectionInEditor())
+      { this.pollSelection(); }
+    else
+      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }
+
+    function poll() {
+      if (input.cm.state.focused) {
+        input.pollSelection();
+        input.polling.set(input.cm.options.pollInterval, poll);
+      }
+    }
+    this.polling.set(this.cm.options.pollInterval, poll);
+  };
+
+  ContentEditableInput.prototype.selectionChanged = function () {
+    var sel = this.getSelection();
+    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
+  };
+
+  ContentEditableInput.prototype.pollSelection = function () {
+    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
+    var sel = this.getSelection(), cm = this.cm;
+    // On Android Chrome (version 56, at least), backspacing into an
+    // uneditable block element will put the cursor in that element,
+    // and then, because it's not editable, hide the virtual keyboard.
+    // Because Android doesn't allow us to actually detect backspace
+    // presses in a sane way, this code checks for when that happens
+    // and simulates a backspace press in this case.
+    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
+      this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
+      this.blur();
+      this.focus();
+      return
+    }
+    if (this.composing) { return }
+    this.rememberSelection();
+    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+    var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+    if (anchor && head) { runInOp(cm, function () {
+      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
+    }); }
+  };
+
+  ContentEditableInput.prototype.pollContent = function () {
+    if (this.readDOMTimeout != null) {
+      clearTimeout(this.readDOMTimeout);
+      this.readDOMTimeout = null;
+    }
+
+    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+    var from = sel.from(), to = sel.to();
+    if (from.ch == 0 && from.line > cm.firstLine())
+      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
+    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
+      { to = Pos(to.line + 1, 0); }
+    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
+
+    var fromIndex, fromLine, fromNode;
+    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+      fromLine = lineNo(display.view[0].line);
+      fromNode = display.view[0].node;
+    } else {
+      fromLine = lineNo(display.view[fromIndex].line);
+      fromNode = display.view[fromIndex - 1].node.nextSibling;
+    }
+    var toIndex = findViewIndex(cm, to.line);
+    var toLine, toNode;
+    if (toIndex == display.view.length - 1) {
+      toLine = display.viewTo - 1;
+      toNode = display.lineDiv.lastChild;
+    } else {
+      toLine = lineNo(display.view[toIndex + 1].line) - 1;
+      toNode = display.view[toIndex + 1].node.previousSibling;
+    }
+
+    if (!fromNode) { return false }
+    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+    while (newText.length > 1 && oldText.length > 1) {
+      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+      else { break }
+    }
+
+    var cutFront = 0, cutEnd = 0;
+    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+      { ++cutFront; }
+    var newBot = lst(newText), oldBot = lst(oldText);
+    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+                             oldBot.length - (oldText.length == 1 ? cutFront : 0));
+    while (cutEnd < maxCutEnd &&
+           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+      { ++cutEnd; }
+    // Try to move start of change to start of selection if ambiguous
+    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
+      while (cutFront && cutFront > from.ch &&
+             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
+        cutFront--;
+        cutEnd++;
+      }
+    }
+
+    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
+    newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");
+
+    var chFrom = Pos(fromLine, cutFront);
+    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+      replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+      return true
+    }
+  };
+
+  ContentEditableInput.prototype.ensurePolled = function () {
+    this.forceCompositionEnd();
+  };
+  ContentEditableInput.prototype.reset = function () {
+    this.forceCompositionEnd();
+  };
+  ContentEditableInput.prototype.forceCompositionEnd = function () {
+    if (!this.composing) { return }
+    clearTimeout(this.readDOMTimeout);
+    this.composing = null;
+    this.updateFromDOM();
+    this.div.blur();
+    this.div.focus();
+  };
+  ContentEditableInput.prototype.readFromDOMSoon = function () {
+      var this$1 = this;
+
+    if (this.readDOMTimeout != null) { return }
+    this.readDOMTimeout = setTimeout(function () {
+      this$1.readDOMTimeout = null;
+      if (this$1.composing) {
+        if (this$1.composing.done) { this$1.composing = null; }
+        else { return }
+      }
+      this$1.updateFromDOM();
+    }, 80);
+  };
+
+  ContentEditableInput.prototype.updateFromDOM = function () {
+      var this$1 = this;
+
+    if (this.cm.isReadOnly() || !this.pollContent())
+      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }
+  };
+
+  ContentEditableInput.prototype.setUneditable = function (node) {
+    node.contentEditable = "false";
+  };
+
+  ContentEditableInput.prototype.onKeyPress = function (e) {
+    if (e.charCode == 0 || this.composing) { return }
+    e.preventDefault();
+    if (!this.cm.isReadOnly())
+      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
+  };
+
+  ContentEditableInput.prototype.readOnlyChanged = function (val) {
+    this.div.contentEditable = String(val != "nocursor");
+  };
+
+  ContentEditableInput.prototype.onContextMenu = function () {};
+  ContentEditableInput.prototype.resetPosition = function () {};
+
+  ContentEditableInput.prototype.needsContentAttribute = true;
+
+  function posToDOM(cm, pos) {
+    var view = findViewForLine(cm, pos.line);
+    if (!view || view.hidden) { return null }
+    var line = getLine(cm.doc, pos.line);
+    var info = mapFromLineView(view, line, pos.line);
+
+    var order = getOrder(line, cm.doc.direction), side = "left";
+    if (order) {
+      var partPos = getBidiPartAt(order, pos.ch);
+      side = partPos % 2 ? "right" : "left";
+    }
+    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+    result.offset = result.collapse == "right" ? result.end : result.start;
+    return result
+  }
+
+  function isInGutter(node) {
+    for (var scan = node; scan; scan = scan.parentNode)
+      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
+    return false
+  }
+
+  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
+
+  function domTextBetween(cm, from, to, fromLine, toLine) {
+    var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
+    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
+    function close() {
+      if (closing) {
+        text += lineSep;
+        if (extraLinebreak) { text += lineSep; }
+        closing = extraLinebreak = false;
+      }
+    }
+    function addText(str) {
+      if (str) {
+        close();
+        text += str;
+      }
+    }
+    function walk(node) {
+      if (node.nodeType == 1) {
+        var cmText = node.getAttribute("cm-text");
+        if (cmText) {
+          addText(cmText);
+          return
+        }
+        var markerID = node.getAttribute("cm-marker"), range;
+        if (markerID) {
+          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+          if (found.length && (range = found[0].find(0)))
+            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
+          return
+        }
+        if (node.getAttribute("contenteditable") == "false") { return }
+        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
+        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }
+
+        if (isBlock) { close(); }
+        for (var i = 0; i < node.childNodes.length; i++)
+          { walk(node.childNodes[i]); }
+
+        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
+        if (isBlock) { closing = true; }
+      } else if (node.nodeType == 3) {
+        addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
+      }
+    }
+    for (;;) {
+      walk(from);
+      if (from == to) { break }
+      from = from.nextSibling;
+      extraLinebreak = false;
+    }
+    return text
+  }
+
+  function domToPos(cm, node, offset) {
+    var lineNode;
+    if (node == cm.display.lineDiv) {
+      lineNode = cm.display.lineDiv.childNodes[offset];
+      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
+      node = null; offset = 0;
+    } else {
+      for (lineNode = node;; lineNode = lineNode.parentNode) {
+        if (!lineNode || lineNode == cm.display.lineDiv) { return null }
+        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
+      }
+    }
+    for (var i = 0; i < cm.display.view.length; i++) {
+      var lineView = cm.display.view[i];
+      if (lineView.node == lineNode)
+        { return locateNodeInLineView(lineView, node, offset) }
+    }
+  }
+
+  function locateNodeInLineView(lineView, node, offset) {
+    var wrapper = lineView.text.firstChild, bad = false;
+    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
+    if (node == wrapper) {
+      bad = true;
+      node = wrapper.childNodes[offset];
+      offset = 0;
+      if (!node) {
+        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+        return badPos(Pos(lineNo(line), line.text.length), bad)
+      }
+    }
+
+    var textNode = node.nodeType == 3 ? node : null, topNode = node;
+    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+      textNode = node.firstChild;
+      if (offset) { offset = textNode.nodeValue.length; }
+    }
+    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
+    var measure = lineView.measure, maps = measure.maps;
+
+    function find(textNode, topNode, offset) {
+      for (var i = -1; i < (maps ? maps.length : 0); i++) {
+        var map = i < 0 ? measure.map : maps[i];
+        for (var j = 0; j < map.length; j += 3) {
+          var curNode = map[j + 2];
+          if (curNode == textNode || curNode == topNode) {
+            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+            var ch = map[j] + offset;
+            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
+            return Pos(line, ch)
+          }
+        }
+      }
+    }
+    var found = find(textNode, topNode, offset);
+    if (found) { return badPos(found, bad) }
+
+    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+      found = find(after, after.firstChild, 0);
+      if (found)
+        { return badPos(Pos(found.line, found.ch - dist), bad) }
+      else
+        { dist += after.textContent.length; }
+    }
+    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
+      found = find(before, before.firstChild, -1);
+      if (found)
+        { return badPos(Pos(found.line, found.ch + dist$1), bad) }
+      else
+        { dist$1 += before.textContent.length; }
+    }
+  }
+
+  // TEXTAREA INPUT STYLE
+
+  var TextareaInput = function(cm) {
+    this.cm = cm;
+    // See input.poll and input.reset
+    this.prevInput = "";
+
+    // Flag that indicates whether we expect input to appear real soon
+    // now (after some event like 'keypress' or 'input') and are
+    // polling intensively.
+    this.pollingFast = false;
+    // Self-resetting timeout for the poller
+    this.polling = new Delayed();
+    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+    this.hasSelection = false;
+    this.composing = null;
+  };
+
+  TextareaInput.prototype.init = function (display) {
+      var this$1 = this;
+
+    var input = this, cm = this.cm;
+    this.createField(display);
+    var te = this.textarea;
+
+    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);
+
+    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+    if (ios) { te.style.width = "0px"; }
+
+    on(te, "input", function () {
+      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
+      input.poll();
+    });
+
+    on(te, "paste", function (e) {
+      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+
+      cm.state.pasteIncoming = +new Date;
+      input.fastPoll();
+    });
+
+    function prepareCopyCut(e) {
+      if (signalDOMEvent(cm, e)) { return }
+      if (cm.somethingSelected()) {
+        setLastCopied({lineWise: false, text: cm.getSelections()});
+      } else if (!cm.options.lineWiseCopyCut) {
+        return
+      } else {
+        var ranges = copyableRanges(cm);
+        setLastCopied({lineWise: true, text: ranges.text});
+        if (e.type == "cut") {
+          cm.setSelections(ranges.ranges, null, sel_dontScroll);
+        } else {
+          input.prevInput = "";
+          te.value = ranges.text.join("\n");
+          selectInput(te);
+        }
+      }
+      if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
+    }
+    on(te, "cut", prepareCopyCut);
+    on(te, "copy", prepareCopyCut);
+
+    on(display.scroller, "paste", function (e) {
+      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
+      if (!te.dispatchEvent) {
+        cm.state.pasteIncoming = +new Date;
+        input.focus();
+        return
+      }
+
+      // Pass the `paste` event to the textarea so it's handled by its event listener.
+      var event = new Event("paste");
+      event.clipboardData = e.clipboardData;
+      te.dispatchEvent(event);
+    });
+
+    // Prevent normal selection in the editor (we handle our own)
+    on(display.lineSpace, "selectstart", function (e) {
+      if (!eventInWidget(display, e)) { e_preventDefault(e); }
+    });
+
+    on(te, "compositionstart", function () {
+      var start = cm.getCursor("from");
+      if (input.composing) { input.composing.range.clear(); }
+      input.composing = {
+        start: start,
+        range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+      };
+    });
+    on(te, "compositionend", function () {
+      if (input.composing) {
+        input.poll();
+        input.composing.range.clear();
+        input.composing = null;
+      }
+    });
+  };
+
+  TextareaInput.prototype.createField = function (_display) {
+    // Wraps and hides input textarea
+    this.wrapper = hiddenTextarea();
+    // The semihidden textarea that is focused when the editor is
+    // focused, and receives input.
+    this.textarea = this.wrapper.firstChild;
+  };
+
+  TextareaInput.prototype.screenReaderLabelChanged = function (label) {
+    // Label for screenreaders, accessibility
+    if(label) {
+      this.textarea.setAttribute('aria-label', label);
+    } else {
+      this.textarea.removeAttribute('aria-label');
+    }
+  };
+
+  TextareaInput.prototype.prepareSelection = function () {
+    // Redraw the selection and/or cursor
+    var cm = this.cm, display = cm.display, doc = cm.doc;
+    var result = prepareSelection(cm);
+
+    // Move the hidden textarea near the cursor to prevent scrolling artifacts
+    if (cm.options.moveInputWithCursor) {
+      var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+                                          headPos.top + lineOff.top - wrapOff.top));
+      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+                                           headPos.left + lineOff.left - wrapOff.left));
+    }
+
+    return result
+  };
+
+  TextareaInput.prototype.showSelection = function (drawn) {
+    var cm = this.cm, display = cm.display;
+    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+    removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+    if (drawn.teTop != null) {
+      this.wrapper.style.top = drawn.teTop + "px";
+      this.wrapper.style.left = drawn.teLeft + "px";
+    }
+  };
+
+  // Reset the input to correspond to the selection (or to be empty,
+  // when not typing and nothing is selected)
+  TextareaInput.prototype.reset = function (typing) {
+    if (this.contextMenuPending || this.composing) { return }
+    var cm = this.cm;
+    if (cm.somethingSelected()) {
+      this.prevInput = "";
+      var content = cm.getSelection();
+      this.textarea.value = content;
+      if (cm.state.focused) { selectInput(this.textarea); }
+      if (ie && ie_version >= 9) { this.hasSelection = content; }
+    } else if (!typing) {
+      this.prevInput = this.textarea.value = "";
+      if (ie && ie_version >= 9) { this.hasSelection = null; }
+    }
+  };
+
+  TextareaInput.prototype.getField = function () { return this.textarea };
+
+  TextareaInput.prototype.supportsTouch = function () { return false };
+
+  TextareaInput.prototype.focus = function () {
+    if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+      try { this.textarea.focus(); }
+      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+    }
+  };
+
+  TextareaInput.prototype.blur = function () { this.textarea.blur(); };
+
+  TextareaInput.prototype.resetPosition = function () {
+    this.wrapper.style.top = this.wrapper.style.left = 0;
+  };
+
+  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };
+
+  // Poll for input changes, using the normal rate of polling. This
+  // runs as long as the editor is focused.
+  TextareaInput.prototype.slowPoll = function () {
+      var this$1 = this;
+
+    if (this.pollingFast) { return }
+    this.polling.set(this.cm.options.pollInterval, function () {
+      this$1.poll();
+      if (this$1.cm.state.focused) { this$1.slowPoll(); }
+    });
+  };
+
+  // When an event has just come in that is likely to add or change
+  // something in the input textarea, we poll faster, to ensure that
+  // the change appears on the screen quickly.
+  TextareaInput.prototype.fastPoll = function () {
+    var missed = false, input = this;
+    input.pollingFast = true;
+    function p() {
+      var changed = input.poll();
+      if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+      else {input.pollingFast = false; input.slowPoll();}
+    }
+    input.polling.set(20, p);
+  };
+
+  // Read input from the textarea, and update the document to match.
+  // When something is selected, it is present in the textarea, and
+  // selected (unless it is huge, in which case a placeholder is
+  // used). When nothing is selected, the cursor sits after previously
+  // seen text (can be empty), which is stored in prevInput (we must
+  // not reset the textarea when typing, because that breaks IME).
+  TextareaInput.prototype.poll = function () {
+      var this$1 = this;
+
+    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+    // Since this is called a *lot*, try to bail out as cheaply as
+    // possible when it is clear that nothing happened. hasSelection
+    // will be the case when there is a lot of text in the textarea,
+    // in which case reading its value would be expensive.
+    if (this.contextMenuPending || !cm.state.focused ||
+        (hasSelection(input) && !prevInput && !this.composing) ||
+        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+      { return false }
+
+    var text = input.value;
+    // If nothing changed, bail.
+    if (text == prevInput && !cm.somethingSelected()) { return false }
+    // Work around nonsensical selection resetting in IE9/10, and
+    // inexplicable appearance of private area unicode characters on
+    // some key combos in Mac (#2689).
+    if (ie && ie_version >= 9 && this.hasSelection === text ||
+        mac && /[\uf700-\uf7ff]/.test(text)) {
+      cm.display.input.reset();
+      return false
+    }
+
+    if (cm.doc.sel == cm.display.selForContextMenu) {
+      var first = text.charCodeAt(0);
+      if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
+      if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
+    }
+    // Find the part of the input that is actually new
+    var same = 0, l = Math.min(prevInput.length, text.length);
+    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }
+
+    runInOp(cm, function () {
+      applyTextInput(cm, text.slice(same), prevInput.length - same,
+                     null, this$1.composing ? "*compose" : null);
+
+      // Don't leave long text in the textarea, since it makes further polling slow
+      if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
+      else { this$1.prevInput = text; }
+
+      if (this$1.composing) {
+        this$1.composing.range.clear();
+        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
+                                           {className: "CodeMirror-composing"});
+      }
+    });
+    return true
+  };
+
+  TextareaInput.prototype.ensurePolled = function () {
+    if (this.pollingFast && this.poll()) { this.pollingFast = false; }
+  };
+
+  TextareaInput.prototype.onKeyPress = function () {
+    if (ie && ie_version >= 9) { this.hasSelection = null; }
+    this.fastPoll();
+  };
+
+  TextareaInput.prototype.onContextMenu = function (e) {
+    var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+    if (input.contextMenuPending) { input.contextMenuPending(); }
+    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+    if (!pos || presto) { return } // Opera is difficult.
+
+    // Reset the current text selection only if the click is done outside of the selection
+    // and 'resetSelectionOnContextMenu' option is true.
+    var reset = cm.options.resetSelectionOnContextMenu;
+    if (reset && cm.doc.sel.contains(pos) == -1)
+      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }
+
+    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
+    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
+    input.wrapper.style.cssText = "position: static";
+    te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+    var oldScrollY;
+    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
+    display.input.focus();
+    if (webkit) { window.scrollTo(null, oldScrollY); }
+    display.input.reset();
+    // Adds "Select all" to context menu in FF
+    if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
+    input.contextMenuPending = rehide;
+    display.selForContextMenu = cm.doc.sel;
+    clearTimeout(display.detectingSelectAll);
+
+    // Select-all will be greyed out if there's nothing to select, so
+    // this adds a zero-width space so that we can later check whether
+    // it got selected.
+    function prepareSelectAllHack() {
+      if (te.selectionStart != null) {
+        var selected = cm.somethingSelected();
+        var extval = "\u200b" + (selected ? te.value : "");
+        te.value = "\u21da"; // Used to catch context-menu undo
+        te.value = extval;
+        input.prevInput = selected ? "" : "\u200b";
+        te.selectionStart = 1; te.selectionEnd = extval.length;
+        // Re-set this, in case some other handler touched the
+        // selection in the meantime.
+        display.selForContextMenu = cm.doc.sel;
+      }
+    }
+    function rehide() {
+      if (input.contextMenuPending != rehide) { return }
+      input.contextMenuPending = false;
+      input.wrapper.style.cssText = oldWrapperCSS;
+      te.style.cssText = oldCSS;
+      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }
+
+      // Try to detect the user choosing select-all
+      if (te.selectionStart != null) {
+        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
+        var i = 0, poll = function () {
+          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+              te.selectionEnd > 0 && input.prevInput == "\u200b") {
+            operation(cm, selectAll)(cm);
+          } else if (i++ < 10) {
+            display.detectingSelectAll = setTimeout(poll, 500);
+          } else {
+            display.selForContextMenu = null;
+            display.input.reset();
+          }
+        };
+        display.detectingSelectAll = setTimeout(poll, 200);
+      }
+    }
+
+    if (ie && ie_version >= 9) { prepareSelectAllHack(); }
+    if (captureRightClick) {
+      e_stop(e);
+      var mouseup = function () {
+        off(window, "mouseup", mouseup);
+        setTimeout(rehide, 20);
+      };
+      on(window, "mouseup", mouseup);
+    } else {
+      setTimeout(rehide, 50);
+    }
+  };
+
+  TextareaInput.prototype.readOnlyChanged = function (val) {
+    if (!val) { this.reset(); }
+    this.textarea.disabled = val == "nocursor";
+    this.textarea.readOnly = !!val;
+  };
+
+  TextareaInput.prototype.setUneditable = function () {};
+
+  TextareaInput.prototype.needsContentAttribute = false;
+
+  function fromTextArea(textarea, options) {
+    options = options ? copyObj(options) : {};
+    options.value = textarea.value;
+    if (!options.tabindex && textarea.tabIndex)
+      { options.tabindex = textarea.tabIndex; }
+    if (!options.placeholder && textarea.placeholder)
+      { options.placeholder = textarea.placeholder; }
+    // Set autofocus to true if this textarea is focused, or if it has
+    // autofocus and no other element is focused.
+    if (options.autofocus == null) {
+      var hasFocus = activeElt();
+      options.autofocus = hasFocus == textarea ||
+        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+    }
+
+    function save() {textarea.value = cm.getValue();}
+
+    var realSubmit;
+    if (textarea.form) {
+      on(textarea.form, "submit", save);
+      // Deplorable hack to make the submit method do the right thing.
+      if (!options.leaveSubmitMethodAlone) {
+        var form = textarea.form;
+        realSubmit = form.submit;
+        try {
+          var wrappedSubmit = form.submit = function () {
+            save();
+            form.submit = realSubmit;
+            form.submit();
+            form.submit = wrappedSubmit;
+          };
+        } catch(e) {}
+      }
+    }
+
+    options.finishInit = function (cm) {
+      cm.save = save;
+      cm.getTextArea = function () { return textarea; };
+      cm.toTextArea = function () {
+        cm.toTextArea = isNaN; // Prevent this from being ran twice
+        save();
+        textarea.parentNode.removeChild(cm.getWrapperElement());
+        textarea.style.display = "";
+        if (textarea.form) {
+          off(textarea.form, "submit", save);
+          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
+            { textarea.form.submit = realSubmit; }
+        }
+      };
+    };
+
+    textarea.style.display = "none";
+    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
+      options);
+    return cm
+  }
+
+  function addLegacyProps(CodeMirror) {
+    CodeMirror.off = off;
+    CodeMirror.on = on;
+    CodeMirror.wheelEventPixels = wheelEventPixels;
+    CodeMirror.Doc = Doc;
+    CodeMirror.splitLines = splitLinesAuto;
+    CodeMirror.countColumn = countColumn;
+    CodeMirror.findColumn = findColumn;
+    CodeMirror.isWordChar = isWordCharBasic;
+    CodeMirror.Pass = Pass;
+    CodeMirror.signal = signal;
+    CodeMirror.Line = Line;
+    CodeMirror.changeEnd = changeEnd;
+    CodeMirror.scrollbarModel = scrollbarModel;
+    CodeMirror.Pos = Pos;
+    CodeMirror.cmpPos = cmp;
+    CodeMirror.modes = modes;
+    CodeMirror.mimeModes = mimeModes;
+    CodeMirror.resolveMode = resolveMode;
+    CodeMirror.getMode = getMode;
+    CodeMirror.modeExtensions = modeExtensions;
+    CodeMirror.extendMode = extendMode;
+    CodeMirror.copyState = copyState;
+    CodeMirror.startState = startState;
+    CodeMirror.innerMode = innerMode;
+    CodeMirror.commands = commands;
+    CodeMirror.keyMap = keyMap;
+    CodeMirror.keyName = keyName;
+    CodeMirror.isModifierKey = isModifierKey;
+    CodeMirror.lookupKey = lookupKey;
+    CodeMirror.normalizeKeyMap = normalizeKeyMap;
+    CodeMirror.StringStream = StringStream;
+    CodeMirror.SharedTextMarker = SharedTextMarker;
+    CodeMirror.TextMarker = TextMarker;
+    CodeMirror.LineWidget = LineWidget;
+    CodeMirror.e_preventDefault = e_preventDefault;
+    CodeMirror.e_stopPropagation = e_stopPropagation;
+    CodeMirror.e_stop = e_stop;
+    CodeMirror.addClass = addClass;
+    CodeMirror.contains = contains;
+    CodeMirror.rmClass = rmClass;
+    CodeMirror.keyNames = keyNames;
+  }
+
+  // EDITOR CONSTRUCTOR
+
+  defineOptions(CodeMirror);
+
+  addEditorMethods(CodeMirror);
+
+  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+    { CodeMirror.prototype[prop] = (function(method) {
+      return function() {return method.apply(this.doc, arguments)}
+    })(Doc.prototype[prop]); } }
+
+  eventMixin(Doc);
+  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+  // Extra arguments are stored as the mode's dependencies, which is
+  // used by (legacy) mechanisms like loadmode.js to automatically
+  // load a mode. (Preferred mechanism is the require/define calls.)
+  CodeMirror.defineMode = function(name/*, mode, …*/) {
+    if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
+    defineMode.apply(this, arguments);
+  };
+
+  CodeMirror.defineMIME = defineMIME;
+
+  // Minimal default mode.
+  CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
+  CodeMirror.defineMIME("text/plain", "null");
+
+  // EXTENSIONS
+
+  CodeMirror.defineExtension = function (name, func) {
+    CodeMirror.prototype[name] = func;
+  };
+  CodeMirror.defineDocExtension = function (name, func) {
+    Doc.prototype[name] = func;
+  };
+
+  CodeMirror.fromTextArea = fromTextArea;
+
+  addLegacyProps(CodeMirror);
+
+  CodeMirror.version = "5.58.3";
+
+  return CodeMirror;
+
+})));
diff --git a/htdocs/Libs/Codemirror/codemirror.min.js b/htdocs/Libs/Codemirror/codemirror.min.js
deleted file mode 100644
index 587863b..0000000
--- a/htdocs/Libs/Codemirror/codemirror.min.js
+++ /dev/null
@@ -1,37 +0,0 @@
-/* CodeMirror - Minified & Bundled
-   Generated on 2015. 08. 31. with http://codemirror.net/doc/compress.html
-   Version: HEAD
-
-   CodeMirror Library:
-   - codemirror.js
-   Modes:
-   - css.js
-   - htmlmixed.js
-   - javascript.js
-   - perl.js
-   - python.js
-   - shell.js
-   - xml.js
-   Add-ons:
-   - active-line.js
-   - brace-fold.js
-   - closebrackets.js
-   - closetag.js
-   - foldcode.js
-   - foldgutter.js
-   - indent-fold.js
-   - match-highlighter.js
-   - matchbrackets.js
-   - matchtags.js
-   - search.js
-   - xml-fold.js
- */
-
-!function(a){if("object"==typeof exports&&"object"==typeof module)module.exports=a();else{if("function"==typeof define&&define.amd)return define([],a);this.CodeMirror=a()}}(function(){"use strict";function v(a,b){if(!(this instanceof v))return new v(a,b);this.options=b=b?hg(b):{},hg(Ad,b,!1),I(b);var c=b.value;"string"==typeof c&&(c=new af(c,b.mode,null,b.lineSeparator)),this.doc=c;var g=new v.inputStyles[b.inputStyle](this),h=this.display=new w(a,c,g);h.wrapper.CodeMirror=this,E(this),C(this),b.lineWrapping&&(this.display.wrapper.className+=" CodeMirror-wrap"),b.autofocus&&!n&&h.input.focus(),M(this),this.state={keyMaps:[],overlays:[],modeGen:0,overwrite:!1,delayingBlurEvent:!1,focused:!1,suppressEdits:!1,pasteIncoming:!1,cutIncoming:!1,selectingText:!1,draggingText:!1,highlight:new Yf,keySeq:null,specialChars:null};var i=this;d&&11>e&&setTimeout(function(){i.display.input.reset(!0)},20),pc(this),Bg(),Vb(this),this.curOp.forceUpdate=!0,ef(this,c),b.autofocus&&!n||i.hasFocus()?setTimeout(ig(Zc,this),20):$c(this);for(var j in Bd)Bd.hasOwnProperty(j)&&Bd[j](this,b[j],Dd);R(this),b.finishInit&&b.finishInit(this);for(var k=0;k<Hd.length;++k)Hd[k](this);Xb(this),f&&b.lineWrapping&&"optimizelegibility"==getComputedStyle(h.lineDiv).textRendering&&(h.lineDiv.style.textRendering="auto")}function w(b,c,g){var h=this;this.input=g,h.scrollbarFiller=pg("div",null,"CodeMirror-scrollbar-filler"),h.scrollbarFiller.setAttribute("cm-not-content","true"),h.gutterFiller=pg("div",null,"CodeMirror-gutter-filler"),h.gutterFiller.setAttribute("cm-not-content","true"),h.lineDiv=pg("div",null,"CodeMirror-code"),h.selectionDiv=pg("div",null,null,"position: relative; z-index: 1"),h.cursorDiv=pg("div",null,"CodeMirror-cursors"),h.measure=pg("div",null,"CodeMirror-measure"),h.lineMeasure=pg("div",null,"CodeMirror-measure"),h.lineSpace=pg("div",[h.measure,h.lineMeasure,h.selectionDiv,h.cursorDiv,h.lineDiv],null,"position: relative; outline: none"),h.mover=pg("div",[pg("div",[h.lineSpace],"CodeMirror-lines")],null,"position: relative"),h.sizer=pg("div",[h.mover],"CodeMirror-sizer"),h.sizerWidth=null,h.heightForcer=pg("div",null,null,"position: absolute; height: "+Tf+"px; width: 1px;"),h.gutters=pg("div",null,"CodeMirror-gutters"),h.lineGutter=null,h.scroller=pg("div",[h.sizer,h.heightForcer,h.gutters],"CodeMirror-scroll"),h.scroller.setAttribute("tabIndex","-1"),h.wrapper=pg("div",[h.scrollbarFiller,h.gutterFiller,h.scroller],"CodeMirror"),d&&8>e&&(h.gutters.style.zIndex=-1,h.scroller.style.paddingRight=0),f||a&&n||(h.scroller.draggable=!0),b&&(b.appendChild?b.appendChild(h.wrapper):b(h.wrapper)),h.viewFrom=h.viewTo=c.first,h.reportedViewFrom=h.reportedViewTo=c.first,h.view=[],h.renderedView=null,h.externalMeasured=null,h.viewOffset=0,h.lastWrapHeight=h.lastWrapWidth=0,h.updateLineNumbers=null,h.nativeBarWidth=h.barHeight=h.barWidth=0,h.scrollbarsClipped=!1,h.lineNumWidth=h.lineNumInnerWidth=h.lineNumChars=null,h.alignWidgets=!1,h.cachedCharWidth=h.cachedTextHeight=h.cachedPaddingH=null,h.maxLine=null,h.maxLineLength=0,h.maxLineChanged=!1,h.wheelDX=h.wheelDY=h.wheelStartX=h.wheelStartY=null,h.shift=!1,h.selForContextMenu=null,h.activeTouch=null,g.init(h)}function x(a){a.doc.mode=v.getMode(a.options,a.doc.modeOption),y(a)}function y(a){a.doc.iter(function(a){a.stateAfter&&(a.stateAfter=null),a.styles&&(a.styles=null)}),a.doc.frontier=a.doc.first,ib(a,100),a.state.modeGen++,a.curOp&&ic(a)}function z(a){a.options.lineWrapping?(xg(a.display.wrapper,"CodeMirror-wrap"),a.display.sizer.style.minWidth="",a.display.sizerWidth=null):(wg(a.display.wrapper,"CodeMirror-wrap"),H(a)),B(a),ic(a),Fb(a),setTimeout(function(){N(a)},100)}function A(a){var b=Rb(a.display),c=a.options.lineWrapping,d=c&&Math.max(5,a.display.scroller.clientWidth/Sb(a.display)-3);return function(e){if(we(a.doc,e))return 0;var f=0;if(e.widgets)for(var g=0;g<e.widgets.length;g++)e.widgets[g].height&&(f+=e.widgets[g].height);return c?f+(Math.ceil(e.text.length/d)||1)*b:f+b}}function B(a){var b=a.doc,c=A(a);b.iter(function(a){var b=c(a);b!=a.height&&jf(a,b)})}function C(a){a.display.wrapper.className=a.display.wrapper.className.replace(/\s*cm-s-\S+/g,"")+a.options.theme.replace(/(^|\s)\s*/g," cm-s-"),Fb(a)}function D(a){E(a),ic(a),setTimeout(function(){Q(a)},20)}function E(a){var b=a.display.gutters,c=a.options.gutters;rg(b);for(var d=0;d<c.length;++d){var e=c[d],f=b.appendChild(pg("div",null,"CodeMirror-gutter "+e));"CodeMirror-linenumbers"==e&&(a.display.lineGutter=f,f.style.width=(a.display.lineNumWidth||1)+"px")}b.style.display=d?"":"none",F(a)}function F(a){var b=a.display.gutters.offsetWidth;a.display.sizer.style.marginLeft=b+"px"}function G(a){if(0==a.height)return 0;for(var c,b=a.text.length,d=a;c=pe(d);){var e=c.find(0,!0);d=e.from.line,b+=e.from.ch-e.to.ch}for(d=a;c=qe(d);){var e=c.find(0,!0);b-=d.text.length-e.from.ch,d=e.to.line,b+=d.text.length-e.to.ch}return b}function H(a){var b=a.display,c=a.doc;b.maxLine=ff(c,c.first),b.maxLineLength=G(b.maxLine),b.maxLineChanged=!0,c.iter(function(a){var c=G(a);c>b.maxLineLength&&(b.maxLineLength=c,b.maxLine=a)})}function I(a){var b=dg(a.gutters,"CodeMirror-linenumbers");-1==b&&a.lineNumbers?a.gutters=a.gutters.concat(["CodeMirror-linenumbers"]):b>-1&&!a.lineNumbers&&(a.gutters=a.gutters.slice(0),a.gutters.splice(b,1))}function J(a){var b=a.display,c=b.gutters.offsetWidth,d=Math.round(a.doc.height+nb(a.display));return{clientHeight:b.scroller.clientHeight,viewHeight:b.wrapper.clientHeight,scrollWidth:b.scroller.scrollWidth,clientWidth:b.scroller.clientWidth,viewWidth:b.wrapper.clientWidth,barLeft:a.options.fixedGutter?c:0,docHeight:d,scrollHeight:d+pb(a)+b.barHeight,nativeBarWidth:b.nativeBarWidth,gutterWidth:c}}function K(a,b,c){this.cm=c;var f=this.vert=pg("div",[pg("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),g=this.horiz=pg("div",[pg("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");a(f),a(g),Jf(f,"scroll",function(){f.clientHeight&&b(f.scrollTop,"vertical")}),Jf(g,"scroll",function(){g.clientWidth&&b(g.scrollLeft,"horizontal")}),this.checkedOverlay=!1,d&&8>e&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")}function L(){}function M(a){a.display.scrollbars&&(a.display.scrollbars.clear(),a.display.scrollbars.addClass&&wg(a.display.wrapper,a.display.scrollbars.addClass)),a.display.scrollbars=new v.scrollbarModel[a.options.scrollbarStyle](function(b){a.display.wrapper.insertBefore(b,a.display.scrollbarFiller),Jf(b,"mousedown",function(){a.state.focused&&setTimeout(function(){a.display.input.focus()},0)}),b.setAttribute("cm-not-content","true")},function(b,c){"horizontal"==c?Ic(a,b):Hc(a,b)},a),a.display.scrollbars.addClass&&xg(a.display.wrapper,a.display.scrollbars.addClass)}function N(a,b){b||(b=J(a));var c=a.display.barWidth,d=a.display.barHeight;O(a,b);for(var e=0;4>e&&c!=a.display.barWidth||d!=a.display.barHeight;e++)c!=a.display.barWidth&&a.options.lineWrapping&&$(a),O(a,J(a)),c=a.display.barWidth,d=a.display.barHeight}function O(a,b){var c=a.display,d=c.scrollbars.update(b);c.sizer.style.paddingRight=(c.barWidth=d.right)+"px",c.sizer.style.paddingBottom=(c.barHeight=d.bottom)+"px",d.right&&d.bottom?(c.scrollbarFiller.style.display="block",c.scrollbarFiller.style.height=d.bottom+"px",c.scrollbarFiller.style.width=d.right+"px"):c.scrollbarFiller.style.display="",d.bottom&&a.options.coverGutterNextToScrollbar&&a.options.fixedGutter?(c.gutterFiller.style.display="block",c.gutterFiller.style.height=d.bottom+"px",c.gutterFiller.style.width=b.gutterWidth+"px"):c.gutterFiller.style.display=""}function P(a,b,c){var d=c&&null!=c.top?Math.max(0,c.top):a.scroller.scrollTop;d=Math.floor(d-mb(a));var e=c&&null!=c.bottom?c.bottom:d+a.wrapper.clientHeight,f=lf(b,d),g=lf(b,e);if(c&&c.ensure){var h=c.ensure.from.line,i=c.ensure.to.line;f>h?(f=h,g=lf(b,mf(ff(b,h))+a.wrapper.clientHeight)):Math.min(i,b.lastLine())>=g&&(f=lf(b,mf(ff(b,i))-a.wrapper.clientHeight),g=i)}return{from:f,to:Math.max(g,f+1)}}function Q(a){var b=a.display,c=b.view;if(b.alignWidgets||b.gutters.firstChild&&a.options.fixedGutter){for(var d=T(b)-b.scroller.scrollLeft+a.doc.scrollLeft,e=b.gutters.offsetWidth,f=d+"px",g=0;g<c.length;g++)if(!c[g].hidden){a.options.fixedGutter&&c[g].gutter&&(c[g].gutter.style.left=f);var h=c[g].alignable;if(h)for(var i=0;i<h.length;i++)h[i].style.left=f}a.options.fixedGutter&&(b.gutters.style.left=d+e+"px")}}function R(a){if(!a.options.lineNumbers)return!1;var b=a.doc,c=S(a.options,b.first+b.size-1),d=a.display;if(c.length!=d.lineNumChars){var e=d.measure.appendChild(pg("div",[pg("div",c)],"CodeMirror-linenumber CodeMirror-gutter-elt")),f=e.firstChild.offsetWidth,g=e.offsetWidth-f;return d.lineGutter.style.width="",d.lineNumInnerWidth=Math.max(f,d.lineGutter.offsetWidth-g)+1,d.lineNumWidth=d.lineNumInnerWidth+g,d.lineNumChars=d.lineNumInnerWidth?c.length:-1,d.lineGutter.style.width=d.lineNumWidth+"px",F(a),!0}return!1}function S(a,b){return String(a.lineNumberFormatter(b+a.firstLineNumber))}function T(a){return a.scroller.getBoundingClientRect().left-a.sizer.getBoundingClientRect().left}function U(a,b,c){var d=a.display;this.viewport=b,this.visible=P(d,a.doc,b),this.editorIsHidden=!d.wrapper.offsetWidth,this.wrapperHeight=d.wrapper.clientHeight,this.wrapperWidth=d.wrapper.clientWidth,this.oldDisplayWidth=qb(a),this.force=c,this.dims=aa(a),this.events=[]}function V(a){var b=a.display;!b.scrollbarsClipped&&b.scroller.offsetWidth&&(b.nativeBarWidth=b.scroller.offsetWidth-b.scroller.clientWidth,b.heightForcer.style.height=pb(a)+"px",b.sizer.style.marginBottom=-b.nativeBarWidth+"px",b.sizer.style.borderRightWidth=pb(a)+"px",b.scrollbarsClipped=!0)}function W(a,b){var c=a.display,d=a.doc;if(b.editorIsHidden)return kc(a),!1;if(!b.force&&b.visible.from>=c.viewFrom&&b.visible.to<=c.viewTo&&(null==c.updateLineNumbers||c.updateLineNumbers>=c.viewTo)&&c.renderedView==c.view&&0==oc(a))return!1;R(a)&&(kc(a),b.dims=aa(a));var e=d.first+d.size,f=Math.max(b.visible.from-a.options.viewportMargin,d.first),g=Math.min(e,b.visible.to+a.options.viewportMargin);c.viewFrom<f&&f-c.viewFrom<20&&(f=Math.max(d.first,c.viewFrom)),c.viewTo>g&&c.viewTo-g<20&&(g=Math.min(e,c.viewTo)),u&&(f=ue(a.doc,f),g=ve(a.doc,g));var h=f!=c.viewFrom||g!=c.viewTo||c.lastWrapHeight!=b.wrapperHeight||c.lastWrapWidth!=b.wrapperWidth;nc(a,f,g),c.viewOffset=mf(ff(a.doc,c.viewFrom)),a.display.mover.style.top=c.viewOffset+"px";var i=oc(a);if(!h&&0==i&&!b.force&&c.renderedView==c.view&&(null==c.updateLineNumbers||c.updateLineNumbers>=c.viewTo))return!1;var j=ug();return i>4&&(c.lineDiv.style.display="none"),ba(a,c.updateLineNumbers,b.dims),i>4&&(c.lineDiv.style.display=""),c.renderedView=c.view,j&&ug()!=j&&j.offsetHeight&&j.focus(),rg(c.cursorDiv),rg(c.selectionDiv),c.gutters.style.height=c.sizer.style.minHeight=0,h&&(c.lastWrapHeight=b.wrapperHeight,c.lastWrapWidth=b.wrapperWidth,ib(a,400)),c.updateLineNumbers=null,!0}function X(a,b){for(var c=b.viewport,d=!0;(d&&a.options.lineWrapping&&b.oldDisplayWidth!=qb(a)||(c&&null!=c.top&&(c={top:Math.min(a.doc.height+nb(a.display)-rb(a),c.top)}),b.visible=P(a.display,a.doc,c),!(b.visible.from>=a.display.viewFrom&&b.visible.to<=a.display.viewTo)))&&W(a,b);d=!1){$(a);var e=J(a);db(a),Z(a,e),N(a,e)}b.signal(a,"update",a),(a.display.viewFrom!=a.display.reportedViewFrom||a.display.viewTo!=a.display.reportedViewTo)&&(b.signal(a,"viewportChange",a,a.display.viewFrom,a.display.viewTo),a.display.reportedViewFrom=a.display.viewFrom,a.display.reportedViewTo=a.display.viewTo)}function Y(a,b){var c=new U(a,b);if(W(a,c)){$(a),X(a,c);var d=J(a);db(a),Z(a,d),N(a,d),c.finish()}}function Z(a,b){a.display.sizer.style.minHeight=b.docHeight+"px";var c=b.docHeight+a.display.barHeight;a.display.heightForcer.style.top=c+"px",a.display.gutters.style.height=Math.max(c+pb(a),b.clientHeight)+"px"}function $(a){for(var b=a.display,c=b.lineDiv.offsetTop,f=0;f<b.view.length;f++){var h,g=b.view[f];if(!g.hidden){if(d&&8>e){var i=g.node.offsetTop+g.node.offsetHeight;h=i-c,c=i}else{var j=g.node.getBoundingClientRect();h=j.bottom-j.top}var k=g.line.height-h;if(2>h&&(h=Rb(b)),(k>.001||-.001>k)&&(jf(g.line,h),_(g.line),g.rest))for(var l=0;l<g.rest.length;l++)_(g.rest[l])}}}function _(a){if(a.widgets)for(var b=0;b<a.widgets.length;++b)a.widgets[b].height=a.widgets[b].node.offsetHeight}function aa(a){for(var b=a.display,c={},d={},e=b.gutters.clientLeft,f=b.gutters.firstChild,g=0;f;f=f.nextSibling,++g)c[a.options.gutters[g]]=f.offsetLeft+f.clientLeft+e,d[a.options.gutters[g]]=f.clientWidth;return{fixedPos:T(b),gutterTotalWidth:b.gutters.offsetWidth,gutterLeft:c,gutterWidth:d,wrapperWidth:b.wrapper.clientWidth}}function ba(a,b,c){function i(b){var c=b.nextSibling;return f&&o&&a.display.currentWheelTarget==b?b.style.display="none":b.parentNode.removeChild(b),c}for(var d=a.display,e=a.options.lineNumbers,g=d.lineDiv,h=g.firstChild,j=d.view,k=d.viewFrom,l=0;l<j.length;l++){var m=j[l];if(m.hidden);else if(m.node&&m.node.parentNode==g){for(;h!=m.node;)h=i(h);var p=e&&null!=b&&k>=b&&m.lineNumber;m.changes&&(dg(m.changes,"gutter")>-1&&(p=!1),ca(a,m,k,c)),p&&(rg(m.lineNumber),m.lineNumber.appendChild(document.createTextNode(S(a.options,k)))),h=m.node.nextSibling}else{var n=ka(a,m,k,c);g.insertBefore(n,h)}k+=m.size}for(;h;)h=i(h)}function ca(a,b,c,d){for(var e=0;e<b.changes.length;e++){var f=b.changes[e];"text"==f?ga(a,b):"gutter"==f?ia(a,b,c,d):"class"==f?ha(b):"widget"==f&&ja(a,b,d)}b.changes=null}function da(a){return a.node==a.text&&(a.node=pg("div",null,null,"position: relative"),a.text.parentNode&&a.text.parentNode.replaceChild(a.node,a.text),a.node.appendChild(a.text),d&&8>e&&(a.node.style.zIndex=2)),a.node}function ea(a){var b=a.bgClass?a.bgClass+" "+(a.line.bgClass||""):a.line.bgClass;if(b&&(b+=" CodeMirror-linebackground"),a.background)b?a.background.className=b:(a.background.parentNode.removeChild(a.background),a.background=null);else if(b){var c=da(a);a.background=c.insertBefore(pg("div",null,b),c.firstChild)}}function fa(a,b){var c=a.display.externalMeasured;return c&&c.line==b.line?(a.display.externalMeasured=null,b.measure=c.measure,c.built):Qe(a,b)}function ga(a,b){var c=b.text.className,d=fa(a,b);b.text==b.node&&(b.node=d.pre),b.text.parentNode.replaceChild(d.pre,b.text),b.text=d.pre,d.bgClass!=b.bgClass||d.textClass!=b.textClass?(b.bgClass=d.bgClass,b.textClass=d.textClass,ha(b)):c&&(b.text.className=c)}function ha(a){ea(a),a.line.wrapClass?da(a).className=a.line.wrapClass:a.node!=a.text&&(a.node.className="");var b=a.textClass?a.textClass+" "+(a.line.textClass||""):a.line.textClass;a.text.className=b||""}function ia(a,b,c,d){if(b.gutter&&(b.node.removeChild(b.gutter),b.gutter=null),b.gutterBackground&&(b.node.removeChild(b.gutterBackground),b.gutterBackground=null),b.line.gutterClass){var e=da(b);b.gutterBackground=pg("div",null,"CodeMirror-gutter-background "+b.line.gutterClass,"left: "+(a.options.fixedGutter?d.fixedPos:-d.gutterTotalWidth)+"px; width: "+d.gutterTotalWidth+"px"),e.insertBefore(b.gutterBackground,b.text)}var f=b.line.gutterMarkers;if(a.options.lineNumbers||f){var e=da(b),g=b.gutter=pg("div",null,"CodeMirror-gutter-wrapper","left: "+(a.options.fixedGutter?d.fixedPos:-d.gutterTotalWidth)+"px");if(a.display.input.setUneditable(g),e.insertBefore(g,b.text),b.line.gutterClass&&(g.className+=" "+b.line.gutterClass),!a.options.lineNumbers||f&&f["CodeMirror-linenumbers"]||(b.lineNumber=g.appendChild(pg("div",S(a.options,c),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+d.gutterLeft["CodeMirror-linenumbers"]+"px; width: "+a.display.lineNumInnerWidth+"px"))),f)for(var h=0;h<a.options.gutters.length;++h){var i=a.options.gutters[h],j=f.hasOwnProperty(i)&&f[i];j&&g.appendChild(pg("div",[j],"CodeMirror-gutter-elt","left: "+d.gutterLeft[i]+"px; width: "+d.gutterWidth[i]+"px"))}}}function ja(a,b,c){b.alignable&&(b.alignable=null);for(var e,d=b.node.firstChild;d;d=e){var e=d.nextSibling;"CodeMirror-linewidget"==d.className&&b.node.removeChild(d)}la(a,b,c)}function ka(a,b,c,d){var e=fa(a,b);return b.text=b.node=e.pre,e.bgClass&&(b.bgClass=e.bgClass),e.textClass&&(b.textClass=e.textClass),ha(b),ia(a,b,c,d),la(a,b,d),b.node}function la(a,b,c){if(ma(a,b.line,b,c,!0),b.rest)for(var d=0;d<b.rest.length;d++)ma(a,b.rest[d],b,c,!1)}function ma(a,b,c,d,e){if(b.widgets)for(var f=da(c),g=0,h=b.widgets;g<h.length;++g){var i=h[g],j=pg("div",[i.node],"CodeMirror-linewidget");i.handleMouseEvents||j.setAttribute("cm-ignore-events","true"),na(i,j,c,d),a.display.input.setUneditable(j),e&&i.above?f.insertBefore(j,c.gutter||c.text):f.appendChild(j),Nf(i,"redraw")}}function na(a,b,c,d){if(a.noHScroll){(c.alignable||(c.alignable=[])).push(b);var e=d.wrapperWidth;b.style.left=d.fixedPos+"px",a.coverGutter||(e-=d.gutterTotalWidth,b.style.paddingLeft=d.gutterTotalWidth+"px"),b.style.width=e+"px"}a.coverGutter&&(b.style.zIndex=5,b.style.position="relative",a.noHScroll||(b.style.marginLeft=-d.gutterTotalWidth+"px"))}function qa(a){return oa(a.line,a.ch)}function ra(a,b){return pa(a,b)<0?b:a}function sa(a,b){return pa(a,b)<0?a:b}function ta(a){a.state.focused||(a.display.input.focus(),Zc(a))}function ua(a){return a.options.readOnly||a.doc.cantEdit}function wa(a,b,c,d,e){var f=a.doc;a.display.shift=!1,d||(d=f.sel);var g=a.state.pasteIncoming||"paste"==e,h=f.splitLines(b),i=null;if(g&&d.ranges.length>1)if(va&&va.join("\n")==b){if(d.ranges.length%va.length==0){i=[];for(var j=0;j<va.length;j++)i.push(f.splitLines(va[j]))}}else h.length==d.ranges.length&&(i=eg(h,function(a){return[a]}));for(var j=d.ranges.length-1;j>=0;j--){var k=d.ranges[j],l=k.from(),m=k.to();k.empty()&&(c&&c>0?l=oa(l.line,l.ch-c):a.state.overwrite&&!g&&(m=oa(m.line,Math.min(ff(f,m.line).text.length,m.ch+bg(h).length))));var n=a.curOp.updateInput,o={from:l,to:m,text:i?i[j%i.length]:h,origin:e||(g?"paste":a.state.cutIncoming?"cut":"+input")};hd(a.doc,o),Nf(a,"inputRead",a,o)}b&&!g&&ya(a,b),td(a),a.curOp.updateInput=n,a.curOp.typing=!0,a.state.pasteIncoming=a.state.cutIncoming=!1}function xa(a,b){var c=a.clipboardData&&a.clipboardData.getData("text/plain");return c?(a.preventDefault(),ua(b)||b.options.disableInput||cc(b,function(){wa(b,c,0,null,"paste")}),!0):void 0}function ya(a,b){if(a.options.electricChars&&a.options.smartIndent)for(var c=a.doc.sel,d=c.ranges.length-1;d>=0;d--){var e=c.ranges[d];if(!(e.head.ch>100||d&&c.ranges[d-1].head.line==e.head.line)){var f=a.getModeAt(e.head),g=!1;if(f.electricChars){for(var h=0;h<f.electricChars.length;h++)if(b.indexOf(f.electricChars.charAt(h))>-1){g=vd(a,e.head.line,"smart");break}}else f.electricInput&&f.electricInput.test(ff(a.doc,e.head.line).text.slice(0,e.head.ch))&&(g=vd(a,e.head.line,"smart"));g&&Nf(a,"electricInput",a,e.head.line)}}}function za(a){for(var b=[],c=[],d=0;d<a.doc.sel.ranges.length;d++){var e=a.doc.sel.ranges[d].head.line,f={anchor:oa(e,0),head:oa(e+1,0)};c.push(f),b.push(a.getRange(f.anchor,f.head))}return{text:b,ranges:c}}function Aa(a){a.setAttribute("autocorrect","off"),a.setAttribute("autocapitalize","off"),a.setAttribute("spellcheck","false")}function Ba(a){this.cm=a,this.prevInput="",this.pollingFast=!1,this.polling=new Yf,this.inaccurateSelection=!1,this.hasSelection=!1,this.composing=null}function Ca(){var a=pg("textarea",null,null,"position: absolute; padding: 0; width: 1px; height: 1em; outline: none"),b=pg("div",[a],null,"overflow: hidden; position: relative; width: 3px; height: 0px;");return f?a.style.width="1000px":a.setAttribute("wrap","off"),m&&(a.style.border="1px solid black"),Aa(a),b}function Da(a){this.cm=a,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new Yf,this.gracePeriod=!1}function Ea(a,b){var c=wb(a,b.line);if(!c||c.hidden)return null;var d=ff(a.doc,b.line),e=tb(c,d,b.line),f=nf(d),g="left";if(f){var h=Yg(f,b.ch);g=h%2?"right":"left"}var i=Ab(e.map,b.ch,g);return i.offset="right"==i.collapse?i.end:i.start,i}function Fa(a,b){return b&&(a.bad=!0),a}function Ga(a,b,c){var d;if(b==a.display.lineDiv){if(d=a.display.lineDiv.childNodes[c],!d)return Fa(a.clipPos(oa(a.display.viewTo-1)),!0);b=null,c=0}else for(d=b;;d=d.parentNode){if(!d||d==a.display.lineDiv)return null;if(d.parentNode&&d.parentNode==a.display.lineDiv)break}for(var e=0;e<a.display.view.length;e++){var f=a.display.view[e];if(f.node==d)return Ha(f,b,c)}}function Ha(a,b,c){function k(b,c,d){for(var e=-1;e<(j?j.length:0);e++)for(var f=0>e?i.map:j[e],g=0;g<f.length;g+=3){var h=f[g+2];if(h==b||h==c){var k=kf(0>e?a.line:a.rest[e]),l=f[g]+d;return(0>d||h!=b)&&(l=f[g+(d?1:0)]),oa(k,l)}}}var d=a.text.firstChild,e=!1;if(!b||!tg(d,b))return Fa(oa(kf(a.line),0),!0);if(b==d&&(e=!0,b=d.childNodes[c],c=0,!b)){var f=a.rest?bg(a.rest):a.line;return Fa(oa(kf(f),f.text.length),e)}var g=3==b.nodeType?b:null,h=b;for(g||1!=b.childNodes.length||3!=b.firstChild.nodeType||(g=b.firstChild,c&&(c=g.nodeValue.length));h.parentNode!=d;)h=h.parentNode;var 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l,g=Ab(b.map,c,f),h=g.node,i=g.start,j=g.end,k=g.collapse;if(3==h.nodeType){for(var m=0;4>m;m++){for(;i&&og(b.line.text.charAt(g.coverStart+i));)--i;for(;g.coverStart+j<g.coverEnd&&og(b.line.text.charAt(g.coverStart+j));)++j;
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Cb(a,b){if(!window.screen||null==screen.logicalXDPI||screen.logicalXDPI==screen.deviceXDPI||!Mg(a))return b;var c=screen.logicalXDPI/screen.deviceXDPI,d=screen.logicalYDPI/screen.deviceYDPI;return{left:b.left*c,right:b.right*c,top:b.top*d,bottom:b.bottom*d}}function Db(a){if(a.measure&&(a.measure.cache={},a.measure.heights=null,a.rest))for(var b=0;b<a.rest.length;b++)a.measure.caches[b]={}}function Eb(a){a.display.externalMeasure=null,rg(a.display.lineMeasure);for(var b=0;b<a.display.view.length;b++)Db(a.display.view[b])}function Fb(a){Eb(a),a.display.cachedCharWidth=a.display.cachedTextHeight=a.display.cachedPaddingH=null,a.options.lineWrapping||(a.display.maxLineChanged=!0),a.display.lineNumChars=null}function Gb(){return window.pageXOffset||(document.documentElement||document.body).scrollLeft}function Hb(){return window.pageYOffset||(document.documentElement||document.body).scrollTop}function Ib(a,b,c,d){if(b.widgets)for(var e=0;e<b.widgets.length;++e)if(b.widgets[e].above){var f=Ae(b.widgets[e]);c.top+=f,c.bottom+=f}if("line"==d)return c;d||(d="local");var g=mf(b);if("local"==d?g+=mb(a.display):g-=a.display.viewOffset,"page"==d||"window"==d){var h=a.display.lineSpace.getBoundingClientRect();g+=h.top+("window"==d?0:Hb());var i=h.left+("window"==d?0:Gb());c.left+=i,c.right+=i}return c.top+=g,c.bottom+=g,c}function Jb(a,b,c){if("div"==c)return b;var d=b.left,e=b.top;if("page"==c)d-=Gb(),e-=Hb();else if("local"==c||!c){var f=a.display.sizer.getBoundingClientRect();d+=f.left,e+=f.top}var g=a.display.lineSpace.getBoundingClientRect();return{left:d-g.left,top:e-g.top}}function Kb(a,b,c,d,e){return d||(d=ff(a.doc,b.line)),Ib(a,d,vb(a,d,b.ch,e),c)}function Lb(a,b,c,d,e,f){function g(b,g){var h=yb(a,e,b,g?"right":"left",f);return g?h.left=h.right:h.right=h.left,Ib(a,d,h,c)}function h(a,b){var c=i[b],d=c.level%2;return a==Pg(c)&&b&&c.level<i[b-1].level?(c=i[--b],a=Qg(c)-(c.level%2?0:1),d=!0):a==Qg(c)&&b<i.length-1&&c.level<i[b+1].level&&(c=i[++b],a=Pg(c)-c.level%2,d=!1),d&&a==c.to&&a>c.from?g(a-1):g(a,d)}d=d||ff(a.doc,b.line),e||(e=xb(a,d));var i=nf(d),j=b.ch;if(!i)return g(j);var k=Yg(i,j),l=h(j,k);return null!=Xg&&(l.other=h(j,Xg)),l}function Mb(a,b){var c=0,b=Oa(a.doc,b);a.options.lineWrapping||(c=Sb(a.display)*b.ch);var d=ff(a.doc,b.line),e=mf(d)+mb(a.display);return{left:c,right:c,top:e,bottom:e+d.height}}function Nb(a,b,c,d){var e=oa(a,b);return e.xRel=d,c&&(e.outside=!0),e}function Ob(a,b,c){var d=a.doc;if(c+=a.display.viewOffset,0>c)return Nb(d.first,0,!0,-1);var e=lf(d,c),f=d.first+d.size-1;if(e>f)return Nb(d.first+d.size-1,ff(d,f).text.length,!0,1);0>b&&(b=0);for(var g=ff(d,e);;){var h=Pb(a,g,e,b,c),i=qe(g),j=i&&i.find(0,!0);if(!i||!(h.ch>j.from.ch||h.ch==j.from.ch&&h.xRel>0))return h;e=kf(g=j.to.line)}}function Pb(a,b,c,d,e){function j(d){var e=Lb(a,oa(c,d),"line",b,i);return g=!0,f>e.bottom?e.left-h:f<e.top?e.left+h:(g=!1,e.left)}var f=e-mf(b),g=!1,h=2*a.display.wrapper.clientWidth,i=xb(a,b),k=nf(b),l=b.text.length,m=Rg(b),n=Sg(b),o=j(m),p=g,q=j(n),r=g;if(d>q)return Nb(c,n,r,1);for(;;){if(k?n==m||n==$g(b,m,1):1>=n-m){for(var s=o>d||q-d>=d-o?m:n,t=d-(s==m?o:q);og(b.text.charAt(s));)++s;var u=Nb(c,s,s==m?p:r,-1>t?-1:t>1?1:0);return u}var v=Math.ceil(l/2),w=m+v;if(k){w=m;for(var x=0;v>x;++x)w=$g(b,w,1)}var y=j(w);y>d?(n=w,q=y,(r=g)&&(q+=1e3),l=v):(m=w,o=y,p=g,l-=v)}}function Rb(a){if(null!=a.cachedTextHeight)return a.cachedTextHeight;if(null==Qb){Qb=pg("pre");for(var b=0;49>b;++b)Qb.appendChild(document.createTextNode("x")),Qb.appendChild(pg("br"));Qb.appendChild(document.createTextNode("x"))}sg(a.measure,Qb);var c=Qb.offsetHeight/50;return c>3&&(a.cachedTextHeight=c),rg(a.measure),c||1}function Sb(a){if(null!=a.cachedCharWidth)return a.cachedCharWidth;var b=pg("span","xxxxxxxxxx"),c=pg("pre",[b]);sg(a.measure,c);var d=b.getBoundingClientRect(),e=(d.right-d.left)/10;return e>2&&(a.cachedCharWidth=e),e||10}function Vb(a){a.curOp={cm:a,viewChanged:!1,startHeight:a.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ub},Tb?Tb.ops.push(a.curOp):a.curOp.ownsGroup=Tb={ops:[a.curOp],delayedCallbacks:[]}}function Wb(a){var b=a.delayedCallbacks,c=0;do{for(;c<b.length;c++)b[c].call(null);for(var d=0;d<a.ops.length;d++){var e=a.ops[d];if(e.cursorActivityHandlers)for(;e.cursorActivityCalled<e.cursorActivityHandlers.length;)e.cursorActivityHandlers[e.cursorActivityCalled++].call(null,e.cm)}}while(c<b.length)}function Xb(a){var b=a.curOp,c=b.ownsGroup;if(c)try{Wb(c)}finally{Tb=null;for(var d=0;d<c.ops.length;d++)c.ops[d].cm.curOp=null;Yb(c)}}function Yb(a){for(var b=a.ops,c=0;c<b.length;c++)Zb(b[c]);for(var c=0;c<b.length;c++)$b(b[c]);for(var c=0;c<b.length;c++)_b(b[c]);for(var c=0;c<b.length;c++)ac(b[c]);for(var c=0;c<b.length;c++)bc(b[c])}function Zb(a){var b=a.cm,c=b.display;V(b),a.updateMaxLine&&H(b),a.mustUpdate=a.viewChanged||a.forceUpdate||null!=a.scrollTop||a.scrollToPos&&(a.scrollToPos.from.line<c.viewFrom||a.scrollToPos.to.line>=c.viewTo)||c.maxLineChanged&&b.options.lineWrapping,a.update=a.mustUpdate&&new U(b,a.mustUpdate&&{top:a.scrollTop,ensure:a.scrollToPos},a.forceUpdate)}function $b(a){a.updatedDisplay=a.mustUpdate&&W(a.cm,a.update)}function _b(a){var b=a.cm,c=b.display;a.updatedDisplay&&$(b),a.barMeasure=J(b),c.maxLineChanged&&!b.options.lineWrapping&&(a.adjustWidthTo=vb(b,c.maxLine,c.maxLine.text.length).left+3,b.display.sizerWidth=a.adjustWidthTo,a.barMeasure.scrollWidth=Math.max(c.scroller.clientWidth,c.sizer.offsetLeft+a.adjustWidthTo+pb(b)+b.display.barWidth),a.maxScrollLeft=Math.max(0,c.sizer.offsetLeft+a.adjustWidthTo-qb(b))),(a.updatedDisplay||a.selectionChanged)&&(a.preparedSelection=c.input.prepareSelection())}function ac(a){var b=a.cm;null!=a.adjustWidthTo&&(b.display.sizer.style.minWidth=a.adjustWidthTo+"px",a.maxScrollLeft<b.doc.scrollLeft&&Ic(b,Math.min(b.display.scroller.scrollLeft,a.maxScrollLeft),!0),b.display.maxLineChanged=!1),a.preparedSelection&&b.display.input.showSelection(a.preparedSelection),a.updatedDisplay&&Z(b,a.barMeasure),(a.updatedDisplay||a.startHeight!=b.doc.height)&&N(b,a.barMeasure),a.selectionChanged&&hb(b),b.state.focused&&a.updateInput&&b.display.input.reset(a.typing),a.focus&&a.focus==ug()&&ta(a.cm)}function bc(a){var b=a.cm,c=b.display,d=b.doc;if(a.updatedDisplay&&X(b,a.update),null==c.wheelStartX||null==a.scrollTop&&null==a.scrollLeft&&!a.scrollToPos||(c.wheelStartX=c.wheelStartY=null),null==a.scrollTop||c.scroller.scrollTop==a.scrollTop&&!a.forceScroll||(d.scrollTop=Math.max(0,Math.min(c.scroller.scrollHeight-c.scroller.clientHeight,a.scrollTop)),c.scrollbars.setScrollTop(d.scrollTop),c.scroller.scrollTop=d.scrollTop),null==a.scrollLeft||c.scroller.scrollLeft==a.scrollLeft&&!a.forceScroll||(d.scrollLeft=Math.max(0,Math.min(c.scroller.scrollWidth-qb(b),a.scrollLeft)),c.scrollbars.setScrollLeft(d.scrollLeft),c.scroller.scrollLeft=d.scrollLeft,Q(b)),a.scrollToPos){var e=pd(b,Oa(d,a.scrollToPos.from),Oa(d,a.scrollToPos.to),a.scrollToPos.margin);a.scrollToPos.isCursor&&b.state.focused&&od(b,e)}var f=a.maybeHiddenMarkers,g=a.maybeUnhiddenMarkers;if(f)for(var h=0;h<f.length;++h)f[h].lines.length||Lf(f[h],"hide");if(g)for(var h=0;h<g.length;++h)g[h].lines.length&&Lf(g[h],"unhide");c.wrapper.offsetHeight&&(d.scrollTop=b.display.scroller.scrollTop),a.changeObjs&&Lf(b,"changes",b,a.changeObjs),a.update&&a.update.finish()}function cc(a,b){if(a.curOp)return b();Vb(a);try{return b()}finally{Xb(a)}}function dc(a,b){return function(){if(a.curOp)return b.apply(a,arguments);Vb(a);try{return b.apply(a,arguments)}finally{Xb(a)}}}function ec(a){return function(){if(this.curOp)return a.apply(this,arguments);Vb(this);try{return a.apply(this,arguments)}finally{Xb(this)}}}function fc(a){return function(){var b=this.cm;if(!b||b.curOp)return a.apply(this,arguments);Vb(b);try{return a.apply(this,arguments)}finally{Xb(b)}}}function gc(a,b,c){this.line=b,this.rest=te(b),this.size=this.rest?kf(bg(this.rest))-c+1:1,this.node=this.text=null,this.hidden=we(a,b)}function hc(a,b,c){for(var e,d=[],f=b;c>f;f=e){var g=new gc(a.doc,ff(a.doc,f),f);e=f+g.size,d.push(g)}return d}function ic(a,b,c,d){null==b&&(b=a.doc.first),null==c&&(c=a.doc.first+a.doc.size),d||(d=0);var e=a.display;if(d&&c<e.viewTo&&(null==e.updateLineNumbers||e.updateLineNumbers>b)&&(e.updateLineNumbers=b),a.curOp.viewChanged=!0,b>=e.viewTo)u&&ue(a.doc,b)<e.viewTo&&kc(a);else if(c<=e.viewFrom)u&&ve(a.doc,c+d)>e.viewFrom?kc(a):(e.viewFrom+=d,e.viewTo+=d);else if(b<=e.viewFrom&&c>=e.viewTo)kc(a);else if(b<=e.viewFrom){var f=mc(a,c,c+d,1);f?(e.view=e.view.slice(f.index),e.viewFrom=f.lineN,e.viewTo+=d):kc(a)}else if(c>=e.viewTo){var f=mc(a,b,b,-1);f?(e.view=e.view.slice(0,f.index),e.viewTo=f.lineN):kc(a)}else{var g=mc(a,b,b,-1),h=mc(a,c,c+d,1);g&&h?(e.view=e.view.slice(0,g.index).concat(hc(a,g.lineN,h.lineN)).concat(e.view.slice(h.index)),e.viewTo+=d):kc(a)}var i=e.externalMeasured;i&&(c<i.lineN?i.lineN+=d:b<i.lineN+i.size&&(e.externalMeasured=null))}function jc(a,b,c){a.curOp.viewChanged=!0;var d=a.display,e=a.display.externalMeasured;if(e&&b>=e.lineN&&b<e.lineN+e.size&&(d.externalMeasured=null),!(b<d.viewFrom||b>=d.viewTo)){var f=d.view[lc(a,b)];if(null!=f.node){var g=f.changes||(f.changes=[]);-1==dg(g,c)&&g.push(c)}}}function kc(a){a.display.viewFrom=a.display.viewTo=a.doc.first,a.display.view=[],a.display.viewOffset=0}function lc(a,b){if(b>=a.display.viewTo)return null;if(b-=a.display.viewFrom,0>b)return null;for(var c=a.display.view,d=0;d<c.length;d++)if(b-=c[d].size,0>b)return d}function mc(a,b,c,d){var f,e=lc(a,b),g=a.display.view;if(!u||c==a.doc.first+a.doc.size)return{index:e,lineN:c};for(var h=0,i=a.display.viewFrom;e>h;h++)i+=g[h].size;if(i!=b){if(d>0){if(e==g.length-1)return null;f=i+g[e].size-b,e++}else f=i-b;b+=f,c+=f}for(;ue(a.doc,c)!=c;){if(e==(0>d?0:g.length-1))return null;c+=d*g[e-(0>d?1:0)].size,e+=d}return{index:e,lineN:c}}function nc(a,b,c){var d=a.display,e=d.view;0==e.length||b>=d.viewTo||c<=d.viewFrom?(d.view=hc(a,b,c),d.viewFrom=b):(d.viewFrom>b?d.view=hc(a,b,d.viewFrom).concat(d.view):d.viewFrom<b&&(d.view=d.view.slice(lc(a,b))),d.viewFrom=b,d.viewTo<c?d.view=d.view.concat(hc(a,d.viewTo,c)):d.viewTo>c&&(d.view=d.view.slice(0,lc(a,c)))),d.viewTo=c}function oc(a){for(var b=a.display.view,c=0,d=0;d<b.length;d++){var e=b[d];e.hidden||e.node&&!e.changes||++c}return c}function pc(a){function g(){b.activeTouch&&(c=setTimeout(function(){b.activeTouch=null},1e3),f=b.activeTouch,f.end=+new Date)}function h(a){if(1!=a.touches.length)return!1;var b=a.touches[0];return b.radiusX<=1&&b.radiusY<=1}function i(a,b){if(null==b.left)return!0;var c=b.left-a.left,d=b.top-a.top;return c*c+d*d>400}var b=a.display;Jf(b.scroller,"mousedown",dc(a,uc)),d&&11>e?Jf(b.scroller,"dblclick",dc(a,function(b){if(!Pf(a,b)){var c=tc(a,b);if(c&&!Bc(a,b)&&!sc(a.display,b)){Df(b);var d=a.findWordAt(c);Ta(a.doc,d.anchor,d.head)}}})):Jf(b.scroller,"dblclick",function(b){Pf(a,b)||Df(b)}),s||Jf(b.scroller,"contextmenu",function(b){_c(a,b)});var c,f={end:0};Jf(b.scroller,"touchstart",function(a){if(!h(a)){clearTimeout(c);var d=+new Date;b.activeTouch={start:d,moved:!1,prev:d-f.end<=300?f:null},1==a.touches.length&&(b.activeTouch.left=a.touches[0].pageX,b.activeTouch.top=a.touches[0].pageY)}}),Jf(b.scroller,"touchmove",function(){b.activeTouch&&(b.activeTouch.moved=!0)}),Jf(b.scroller,"touchend",function(c){var d=b.activeTouch;if(d&&!sc(b,c)&&null!=d.left&&!d.moved&&new Date-d.start<300){var f,e=a.coordsChar(b.activeTouch,"page");f=!d.prev||i(d,d.prev)?new Ka(e,e):!d.prev.prev||i(d,d.prev.prev)?a.findWordAt(e):new 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e=a.display.dragFunctions,f=b?Jf:Kf;f(a.display.scroller,"dragstart",e.start),f(a.display.scroller,"dragenter",e.enter),f(a.display.scroller,"dragover",e.over),f(a.display.scroller,"dragleave",e.leave),f(a.display.scroller,"drop",e.drop)}}function rc(a){var b=a.display;(b.lastWrapHeight!=b.wrapper.clientHeight||b.lastWrapWidth!=b.wrapper.clientWidth)&&(b.cachedCharWidth=b.cachedTextHeight=b.cachedPaddingH=null,b.scrollbarsClipped=!1,a.setSize())}function sc(a,b){for(var c=Hf(b);c!=a.wrapper;c=c.parentNode)if(!c||1==c.nodeType&&"true"==c.getAttribute("cm-ignore-events")||c.parentNode==a.sizer&&c!=a.mover)return!0}function tc(a,b,c,d){var e=a.display;if(!c&&"true"==Hf(b).getAttribute("cm-not-content"))return null;var f,g,h=e.lineSpace.getBoundingClientRect();try{f=b.clientX-h.left,g=b.clientY-h.top}catch(b){return null}var j,i=Ob(a,f,g);if(d&&1==i.xRel&&(j=ff(a.doc,i.line).text).length==i.ch){var k=Zf(j,j.length,a.options.tabSize)-j.length;i=oa(i.line,Math.max(0,Math.round((f-ob(a.display).left)/Sb(a.display))-k))}return i}function uc(a){var b=this,c=b.display;if(!(c.activeTouch&&c.input.supportsTouch()||Pf(b,a))){if(c.shift=a.shiftKey,sc(c,a))return void(f||(c.scroller.draggable=!1,setTimeout(function(){c.scroller.draggable=!0},100)));if(!Bc(b,a)){var d=tc(b,a);switch(window.focus(),If(a)){case 1:b.state.selectingText?b.state.selectingText(a):d?xc(b,a,d):Hf(a)==c.scroller&&Df(a);break;case 2:f&&(b.state.lastMiddleDown=+new Date),d&&Ta(b.doc,d),setTimeout(function(){c.input.focus()},20),Df(a);break;case 3:s?_c(b,a):Yc(b)}}}}function xc(a,b,c){d?setTimeout(ig(ta,a),0):a.curOp.focus=ug();var f,e=+new Date;wc&&wc.time>e-400&&0==pa(wc.pos,c)?f="triple":vc&&vc.time>e-400&&0==pa(vc.pos,c)?(f="double",wc={time:e,pos:c}):(f="single",vc={time:e,pos:c});var i,g=a.doc.sel,h=o?b.metaKey:b.ctrlKey;a.options.dragDrop&&Dg&&!ua(a)&&"single"==f&&(i=g.contains(c))>-1&&(pa((i=g.ranges[i]).from(),c)<0||c.xRel>0)&&(pa(i.to(),c)>0||c.xRel<0)?yc(a,b,c,h):zc(a,b,c,f,h)}function yc(a,b,c,g){var h=a.display,i=+new Date,j=dc(a,function(k){f&&(h.scroller.draggable=!1),a.state.draggingText=!1,Kf(document,"mouseup",j),Kf(h.scroller,"drop",j),Math.abs(b.clientX-k.clientX)+Math.abs(b.clientY-k.clientY)<10&&(Df(k),!g&&+new Date-200<i&&Ta(a.doc,c),f||d&&9==e?setTimeout(function(){document.body.focus(),h.input.focus()},20):h.input.focus())});f&&(h.scroller.draggable=!0),a.state.draggingText=j,h.scroller.dragDrop&&h.scroller.dragDrop(),Jf(document,"mouseup",j),Jf(h.scroller,"drop",j)}function zc(a,b,c,d,e){function o(b){if(0!=pa(n,b))if(n=b,"rect"==d){for(var e=[],f=a.options.tabSize,k=Zf(ff(g,c.line).text,c.ch,f),l=Zf(ff(g,b.line).text,b.ch,f),m=Math.min(k,l),o=Math.max(k,l),p=Math.min(c.line,b.line),q=Math.min(a.lastLine(),Math.max(c.line,b.line));q>=p;p++){var r=ff(g,p).text,s=$f(r,m,f);m==o?e.push(new Ka(oa(p,s),oa(p,s))):r.length>s&&e.push(new Ka(oa(p,s),oa(p,$f(r,o,f))))}e.length||e.push(new Ka(c,c)),Za(g,La(j.ranges.slice(0,i).concat(e),i),{origin:"*mouse",scroll:!1}),a.scrollIntoView(b)}else{var t=h,u=t.anchor,v=b;if("single"!=d){if("double"==d)var w=a.findWordAt(b);else var w=new Ka(oa(b.line,0),Oa(g,oa(b.line+1,0)));pa(w.anchor,u)>0?(v=w.head,u=sa(t.from(),w.anchor)):(v=w.anchor,u=ra(t.to(),w.head))}var e=j.ranges.slice(0);e[i]=new Ka(Oa(g,u),v),Za(g,La(e,i),Wf)}}function r(b){var c=++q,e=tc(a,b,!0,"rect"==d);if(e)if(0!=pa(e,n)){a.curOp.focus=ug(),o(e);var h=P(f,g);(e.line>=h.to||e.line<h.from)&&setTimeout(dc(a,function(){q==c&&r(b)}),150)}else{var i=b.clientY<p.top?-20:b.clientY>p.bottom?20:0;i&&setTimeout(dc(a,function(){q==c&&(f.scroller.scrollTop+=i,r(b))}),50)}}function s(b){a.state.selectingText=!1,q=1/0,Df(b),f.input.focus(),Kf(document,"mousemove",t),Kf(document,"mouseup",u),g.history.lastSelOrigin=null}var f=a.display,g=a.doc;Df(b);var h,i,j=g.sel,k=j.ranges;if(e&&!b.shiftKey?(i=g.sel.contains(c),h=i>-1?k[i]:new Ka(c,c)):(h=g.sel.primary(),i=g.sel.primIndex),b.altKey)d="rect",e||(h=new Ka(c,c)),c=tc(a,b,!0,!0),i=-1;else if("double"==d){var l=a.findWordAt(c);h=a.display.shift||g.extend?Sa(g,h,l.anchor,l.head):l}else if("triple"==d){var m=new Ka(oa(c.line,0),Oa(g,oa(c.line+1,0)));h=a.display.shift||g.extend?Sa(g,h,m.anchor,m.head):m}else h=Sa(g,h,c);e?-1==i?(i=k.length,Za(g,La(k.concat([h]),i),{scroll:!1,origin:"*mouse"})):k.length>1&&k[i].empty()&&"single"==d&&!b.shiftKey?(Za(g,La(k.slice(0,i).concat(k.slice(i+1)),0),{scroll:!1,origin:"*mouse"}),j=g.sel):Va(g,i,h,Wf):(i=0,Za(g,new Ja([h],0),Wf),j=g.sel);var n=c,p=f.wrapper.getBoundingClientRect(),q=0,t=dc(a,function(a){If(a)?r(a):s(a)}),u=dc(a,s);a.state.selectingText=u,Jf(document,"mousemove",t),Jf(document,"mouseup",u)}function Ac(a,b,c,d,e){try{var f=b.clientX,g=b.clientY}catch(b){return!1}if(f>=Math.floor(a.display.gutters.getBoundingClientRect().right))return!1;d&&Df(b);var h=a.display,i=h.lineDiv.getBoundingClientRect();if(g>i.bottom||!Rf(a,c))return Ff(b);g-=i.top-h.viewOffset;for(var j=0;j<a.options.gutters.length;++j){var k=h.gutters.childNodes[j];if(k&&k.getBoundingClientRect().right>=f){var l=lf(a.doc,g),m=a.options.gutters[j];return e(a,c,a,l,m,b),Ff(b)}}}function Bc(a,b){return Ac(a,b,"gutterClick",!0,Nf)}function Dc(a){var b=this;if(Gc(b),!Pf(b,a)&&!sc(b.display,a)){Df(a),d&&(Cc=+new Date);var c=tc(b,a,!0),e=a.dataTransfer.files;if(c&&!ua(b))if(e&&e.length&&window.FileReader&&window.File)for(var f=e.length,g=Array(f),h=0,i=function(a,d){var e=new FileReader;e.onload=dc(b,function(){if(g[d]=e.result,++h==f){c=Oa(b.doc,c);var a={from:c,to:c,text:b.doc.splitLines(g.join(b.doc.lineSeparator())),origin:"paste"};hd(b.doc,a),Ya(b.doc,Ma(c,bd(a)))}}),e.readAsText(a)},j=0;f>j;++j)i(e[j],j);else{if(b.state.draggingText&&b.doc.sel.contains(c)>-1)return b.state.draggingText(a),void setTimeout(function(){b.display.input.focus()},20);try{var g=a.dataTransfer.getData("Text");if(g){if(b.state.draggingText&&!(o?a.altKey:a.ctrlKey))var k=b.listSelections();if($a(b.doc,Ma(c,c)),k)for(var j=0;j<k.length;++j)nd(b.doc,"",k[j].anchor,k[j].head,"drag");b.replaceSelection(g,"around","paste"),b.display.input.focus()}}catch(a){}}}}function Ec(a,b){if(d&&(!a.state.draggingText||+new Date-Cc<100))return void Gf(b);if(!Pf(a,b)&&!sc(a.display,b)&&(b.dataTransfer.setData("Text",a.getSelection()),b.dataTransfer.setDragImage&&!j)){var c=pg("img",null,null,"position: fixed; left: 0; top: 0;");c.src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==",i&&(c.width=c.height=1,a.display.wrapper.appendChild(c),c._top=c.offsetTop),b.dataTransfer.setDragImage(c,0,0),i&&c.parentNode.removeChild(c)}}function Fc(a,b){var c=tc(a,b);if(c){var d=document.createDocumentFragment();fb(a,c,d),a.display.dragCursor||(a.display.dragCursor=pg("div",null,"CodeMirror-cursors CodeMirror-dragcursors"),a.display.lineSpace.insertBefore(a.display.dragCursor,a.display.cursorDiv)),sg(a.display.dragCursor,d)}}function Gc(a){a.display.dragCursor&&(a.display.lineSpace.removeChild(a.display.dragCursor),a.display.dragCursor=null)}function Hc(b,c){Math.abs(b.doc.scrollTop-c)<2||(b.doc.scrollTop=c,a||Y(b,{top:c}),b.display.scroller.scrollTop!=c&&(b.display.scroller.scrollTop=c),b.display.scrollbars.setScrollTop(c),a&&Y(b),ib(b,100))}function Ic(a,b,c){(c?b==a.doc.scrollLeft:Math.abs(a.doc.scrollLeft-b)<2)||(b=Math.min(b,a.display.scroller.scrollWidth-a.display.scroller.clientWidth),a.doc.scrollLeft=b,Q(a),a.display.scroller.scrollLeft!=b&&(a.display.scroller.scrollLeft=b),a.display.scrollbars.setScrollLeft(b))}function Mc(b,c){var d=Lc(c),e=d.x,g=d.y,h=b.display,j=h.scroller;if(e&&j.scrollWidth>j.clientWidth||g&&j.scrollHeight>j.clientHeight){if(g&&o&&f)a:for(var k=c.target,l=h.view;k!=j;k=k.parentNode)for(var m=0;m<l.length;m++)if(l[m].node==k){b.display.currentWheelTarget=k;break a}if(e&&!a&&!i&&null!=Kc)return g&&Hc(b,Math.max(0,Math.min(j.scrollTop+g*Kc,j.scrollHeight-j.clientHeight))),Ic(b,Math.max(0,Math.min(j.scrollLeft+e*Kc,j.scrollWidth-j.clientWidth))),Df(c),void(h.wheelStartX=null);if(g&&null!=Kc){var n=g*Kc,p=b.doc.scrollTop,q=p+h.wrapper.clientHeight;0>n?p=Math.max(0,p+n-50):q=Math.min(b.doc.height,q+n+50),Y(b,{top:p,bottom:q})}20>Jc&&(null==h.wheelStartX?(h.wheelStartX=j.scrollLeft,h.wheelStartY=j.scrollTop,h.wheelDX=e,h.wheelDY=g,setTimeout(function(){if(null!=h.wheelStartX){var a=j.scrollLeft-h.wheelStartX,b=j.scrollTop-h.wheelStartY,c=b&&h.wheelDY&&b/h.wheelDY||a&&h.wheelDX&&a/h.wheelDX;h.wheelStartX=h.wheelStartY=null,c&&(Kc=(Kc*Jc+c)/(Jc+1),++Jc)}},200)):(h.wheelDX+=e,h.wheelDY+=g))}}function Nc(a,b,c){if("string"==typeof b&&(b=Ld[b],!b))return!1;a.display.input.ensurePolled();var d=a.display.shift,e=!1;try{ua(a)&&(a.state.suppressEdits=!0),c&&(a.display.shift=!1),e=b(a)!=Uf}finally{a.display.shift=d,a.state.suppressEdits=!1}return e}function Oc(a,b,c){for(var d=0;d<a.state.keyMaps.length;d++){var e=Od(b,a.state.keyMaps[d],c,a);if(e)return e}return a.options.extraKeys&&Od(b,a.options.extraKeys,c,a)||Od(b,a.options.keyMap,c,a)}function Qc(a,b,c,d){var e=a.state.keySeq;if(e){if(Pd(b))return"handled";Pc.set(50,function(){a.state.keySeq==e&&(a.state.keySeq=null,a.display.input.reset())}),b=e+" "+b}var f=Oc(a,b,d);return"multi"==f&&(a.state.keySeq=b),"handled"==f&&Nf(a,"keyHandled",a,b,c),("handled"==f||"multi"==f)&&(Df(c),hb(a)),e&&!f&&/\'$/.test(b)?(Df(c),!0):!!f}function Rc(a,b){var c=Qd(b,!0);return c?b.shiftKey&&!a.state.keySeq?Qc(a,"Shift-"+c,b,function(b){return Nc(a,b,!0)})||Qc(a,c,b,function(b){return("string"==typeof b?/^go[A-Z]/.test(b):b.motion)?Nc(a,b):void 0}):Qc(a,c,b,function(b){return Nc(a,b)}):!1}function Sc(a,b,c){return Qc(a,"'"+c+"'",b,function(b){return Nc(a,b,!0)})}function Uc(a){var b=this;if(b.curOp.focus=ug(),!Pf(b,a)){d&&11>e&&27==a.keyCode&&(a.returnValue=!1);var c=a.keyCode;b.display.shift=16==c||a.shiftKey;var f=Rc(b,a);i&&(Tc=f?c:null,!f&&88==c&&!Kg&&(o?a.metaKey:a.ctrlKey)&&b.replaceSelection("",null,"cut")),18!=c||/\bCodeMirror-crosshair\b/.test(b.display.lineDiv.className)||Vc(b)}}function Vc(a){function c(a){18!=a.keyCode&&a.altKey||(wg(b,"CodeMirror-crosshair"),Kf(document,"keyup",c),Kf(document,"mouseover",c))}var b=a.display.lineDiv;xg(b,"CodeMirror-crosshair"),Jf(document,"keyup",c),Jf(document,"mouseover",c)}function Wc(a){16==a.keyCode&&(this.doc.sel.shift=!1),Pf(this,a)}function Xc(a){var b=this;if(!(sc(b.display,a)||Pf(b,a)||a.ctrlKey&&!a.altKey||o&&a.metaKey)){var c=a.keyCode,d=a.charCode;if(i&&c==Tc)return Tc=null,void Df(a);if(!i||a.which&&!(a.which<10)||!Rc(b,a)){var e=String.fromCharCode(null==d?c:d);Sc(b,a,e)||b.display.input.onKeyPress(a)}}}function Yc(a){a.state.delayingBlurEvent=!0,setTimeout(function(){a.state.delayingBlurEvent&&(a.state.delayingBlurEvent=!1,$c(a))},100)}function Zc(a){a.state.delayingBlurEvent&&(a.state.delayingBlurEvent=!1),"nocursor"!=a.options.readOnly&&(a.state.focused||(Lf(a,"focus",a),a.state.focused=!0,xg(a.display.wrapper,"CodeMirror-focused"),a.curOp||a.display.selForContextMenu==a.doc.sel||(a.display.input.reset(),f&&setTimeout(function(){a.display.input.reset(!0)},20)),a.display.input.receivedFocus()),hb(a))}function $c(a){a.state.delayingBlurEvent||(a.state.focused&&(Lf(a,"blur",a),a.state.focused=!1,wg(a.display.wrapper,"CodeMirror-focused")),clearInterval(a.display.blinker),setTimeout(function(){a.state.focused||(a.display.shift=!1)},150))}function _c(a,b){sc(a.display,b)||ad(a,b)||a.display.input.onContextMenu(b)}function ad(a,b){return Rf(a,"gutterContextMenu")?Ac(a,b,"gutterContextMenu",!1,Lf):!1}function cd(a,b){if(pa(a,b.from)<0)return a;if(pa(a,b.to)<=0)return bd(b);var c=a.line+b.text.length-(b.to.line-b.from.line)-1,d=a.ch;return a.line==b.to.line&&(d+=bd(b).ch-b.to.ch),oa(c,d)}function dd(a,b){for(var c=[],d=0;d<a.sel.ranges.length;d++){var e=a.sel.ranges[d];c.push(new Ka(cd(e.anchor,b),cd(e.head,b)))}return La(c,a.sel.primIndex)}function ed(a,b,c){return a.line==b.line?oa(c.line,a.ch-b.ch+c.ch):oa(c.line+(a.line-b.line),a.ch)}function fd(a,b,c){for(var d=[],e=oa(a.first,0),f=e,g=0;g<b.length;g++){var h=b[g],i=ed(h.from,e,f),j=ed(bd(h),e,f);if(e=h.to,f=j,"around"==c){var k=a.sel.ranges[g],l=pa(k.head,k.anchor)<0;d[g]=new Ka(l?j:i,l?i:j)}else d[g]=new Ka(i,i)}return new Ja(d,a.sel.primIndex)}function gd(a,b,c){var d={canceled:!1,from:b.from,to:b.to,text:b.text,origin:b.origin,cancel:function(){this.canceled=!0}};return c&&(d.update=function(b,c,d,e){b&&(this.from=Oa(a,b)),c&&(this.to=Oa(a,c)),d&&(this.text=d),void 0!==e&&(this.origin=e)}),Lf(a,"beforeChange",a,d),a.cm&&Lf(a.cm,"beforeChange",a.cm,d),d.canceled?null:{from:d.from,to:d.to,text:d.text,origin:d.origin}}function hd(a,b,c){if(a.cm){if(!a.cm.curOp)return dc(a.cm,hd)(a,b,c);if(a.cm.state.suppressEdits)return}if(!(Rf(a,"beforeChange")||a.cm&&Rf(a.cm,"beforeChange"))||(b=gd(a,b,!0))){var d=t&&!c&&ie(a,b.from,b.to);if(d)for(var e=d.length-1;e>=0;--e)id(a,{from:d[e].from,to:d[e].to,text:e?[""]:b.text});else id(a,b)}}function id(a,b){if(1!=b.text.length||""!=b.text[0]||0!=pa(b.from,b.to)){var c=dd(a,b);sf(a,b,c,a.cm?a.cm.curOp.id:NaN),ld(a,b,c,fe(a,b));var d=[];df(a,function(a,c){c||-1!=dg(d,a.history)||(Cf(a.history,b),d.push(a.history)),ld(a,b,null,fe(a,b))})}}function jd(a,b,c){if(!a.cm||!a.cm.state.suppressEdits){for(var e,d=a.history,f=a.sel,g="undo"==b?d.done:d.undone,h="undo"==b?d.undone:d.done,i=0;i<g.length&&(e=g[i],c?!e.ranges||e.equals(a.sel):e.ranges);i++);if(i!=g.length){for(d.lastOrigin=d.lastSelOrigin=null;e=g.pop(),e.ranges;){if(vf(e,h),c&&!e.equals(a.sel))return void Za(a,e,{clearRedo:!1});f=e}var j=[];vf(f,h),h.push({changes:j,generation:d.generation}),d.generation=e.generation||++d.maxGeneration;for(var k=Rf(a,"beforeChange")||a.cm&&Rf(a.cm,"beforeChange"),i=e.changes.length-1;i>=0;--i){var l=e.changes[i];if(l.origin=b,k&&!gd(a,l,!1))return void(g.length=0);j.push(pf(a,l));var m=i?dd(a,l):bg(g);ld(a,l,m,he(a,l)),!i&&a.cm&&a.cm.scrollIntoView({from:l.from,to:bd(l)});var n=[];df(a,function(a,b){b||-1!=dg(n,a.history)||(Cf(a.history,l),n.push(a.history)),ld(a,l,null,he(a,l))})}}}}function kd(a,b){if(0!=b&&(a.first+=b,a.sel=new Ja(eg(a.sel.ranges,function(a){return new Ka(oa(a.anchor.line+b,a.anchor.ch),oa(a.head.line+b,a.head.ch))}),a.sel.primIndex),a.cm)){ic(a.cm,a.first,a.first-b,b);for(var c=a.cm.display,d=c.viewFrom;d<c.viewTo;d++)jc(a.cm,d,"gutter")}}function ld(a,b,c,d){if(a.cm&&!a.cm.curOp)return dc(a.cm,ld)(a,b,c,d);if(b.to.line<a.first)return void kd(a,b.text.length-1-(b.to.line-b.from.line));if(!(b.from.line>a.lastLine())){if(b.from.line<a.first){var e=b.text.length-1-(a.first-b.from.line);kd(a,e),b={from:oa(a.first,0),to:oa(b.to.line+e,b.to.ch),text:[bg(b.text)],origin:b.origin}}var f=a.lastLine();b.to.line>f&&(b={from:b.from,to:oa(f,ff(a,f).text.length),text:[b.text[0]],origin:b.origin}),b.removed=gf(a,b.from,b.to),c||(c=dd(a,b)),a.cm?md(a.cm,b,d):Ye(a,b,d),$a(a,c,Vf)}}function md(a,b,c){var d=a.doc,e=a.display,f=b.from,g=b.to,h=!1,i=f.line;a.options.lineWrapping||(i=kf(se(ff(d,f.line))),d.iter(i,g.line+1,function(a){return a==e.maxLine?(h=!0,!0):void 0})),d.sel.contains(b.from,b.to)>-1&&Qf(a),Ye(d,b,c,A(a)),a.options.lineWrapping||(d.iter(i,f.line+b.text.length,function(a){var b=G(a);b>e.maxLineLength&&(e.maxLine=a,e.maxLineLength=b,e.maxLineChanged=!0,h=!1)}),h&&(a.curOp.updateMaxLine=!0)),d.frontier=Math.min(d.frontier,f.line),ib(a,400);var j=b.text.length-(g.line-f.line)-1;b.full?ic(a):f.line!=g.line||1!=b.text.length||Xe(a.doc,b)?ic(a,f.line,g.line+1,j):jc(a,f.line,"text");var k=Rf(a,"changes"),l=Rf(a,"change");if(l||k){var m={from:f,to:g,text:b.text,removed:b.removed,origin:b.origin};l&&Nf(a,"change",a,m),k&&(a.curOp.changeObjs||(a.curOp.changeObjs=[])).push(m)}a.display.selForContextMenu=null}function nd(a,b,c,d,e){if(d||(d=c),pa(d,c)<0){var f=d;d=c,c=f}"string"==typeof b&&(b=a.splitLines(b)),hd(a,{from:c,to:d,text:b,origin:e})}function od(a,b){if(!Pf(a,"scrollCursorIntoView")){var c=a.display,d=c.sizer.getBoundingClientRect(),e=null;if(b.top+d.top<0?e=!0:b.bottom+d.top>(window.innerHeight||document.documentElement.clientHeight)&&(e=!1),null!=e&&!l){var f=pg("div","\u200b",null,"position: absolute; top: "+(b.top-c.viewOffset-mb(a.display))+"px; height: "+(b.bottom-b.top+pb(a)+c.barHeight)+"px; left: "+b.left+"px; width: 2px;");a.display.lineSpace.appendChild(f),f.scrollIntoView(e),a.display.lineSpace.removeChild(f)}}}function pd(a,b,c,d){null==d&&(d=0);for(var e=0;5>e;e++){var f=!1,g=Lb(a,b),h=c&&c!=b?Lb(a,c):g,i=rd(a,Math.min(g.left,h.left),Math.min(g.top,h.top)-d,Math.max(g.left,h.left),Math.max(g.bottom,h.bottom)+d),j=a.doc.scrollTop,k=a.doc.scrollLeft;if(null!=i.scrollTop&&(Hc(a,i.scrollTop),Math.abs(a.doc.scrollTop-j)>1&&(f=!0)),null!=i.scrollLeft&&(Ic(a,i.scrollLeft),Math.abs(a.doc.scrollLeft-k)>1&&(f=!0)),!f)break}return g}function qd(a,b,c,d,e){var f=rd(a,b,c,d,e);null!=f.scrollTop&&Hc(a,f.scrollTop),null!=f.scrollLeft&&Ic(a,f.scrollLeft)}function rd(a,b,c,d,e){var f=a.display,g=Rb(a.display);0>c&&(c=0);var h=a.curOp&&null!=a.curOp.scrollTop?a.curOp.scrollTop:f.scroller.scrollTop,i=rb(a),j={};e-c>i&&(e=c+i);var k=a.doc.height+nb(f),l=g>c,m=e>k-g;if(h>c)j.scrollTop=l?0:c;else if(e>h+i){var n=Math.min(c,(m?k:e)-i);n!=h&&(j.scrollTop=n)}var o=a.curOp&&null!=a.curOp.scrollLeft?a.curOp.scrollLeft:f.scroller.scrollLeft,p=qb(a)-(a.options.fixedGutter?f.gutters.offsetWidth:0),q=d-b>p;return q&&(d=b+p),10>b?j.scrollLeft=0:o>b?j.scrollLeft=Math.max(0,b-(q?0:10)):d>p+o-3&&(j.scrollLeft=d+(q?0:10)-p),j}function sd(a,b,c){(null!=b||null!=c)&&ud(a),null!=b&&(a.curOp.scrollLeft=(null==a.curOp.scrollLeft?a.doc.scrollLeft:a.curOp.scrollLeft)+b),null!=c&&(a.curOp.scrollTop=(null==a.curOp.scrollTop?a.doc.scrollTop:a.curOp.scrollTop)+c)}function td(a){ud(a);var b=a.getCursor(),c=b,d=b;a.options.lineWrapping||(c=b.ch?oa(b.line,b.ch-1):b,d=oa(b.line,b.ch+1)),a.curOp.scrollToPos={from:c,to:d,margin:a.options.cursorScrollMargin,isCursor:!0}}function ud(a){var b=a.curOp.scrollToPos;if(b){a.curOp.scrollToPos=null;var c=Mb(a,b.from),d=Mb(a,b.to),e=rd(a,Math.min(c.left,d.left),Math.min(c.top,d.top)-b.margin,Math.max(c.right,d.right),Math.max(c.bottom,d.bottom)+b.margin);a.scrollTo(e.scrollLeft,e.scrollTop)}}function vd(a,b,c,d){var f,e=a.doc;null==c&&(c="add"),"smart"==c&&(e.mode.indent?f=lb(a,b):c="prev");var g=a.options.tabSize,h=ff(e,b),i=Zf(h.text,null,g);h.stateAfter&&(h.stateAfter=null);var k,j=h.text.match(/^\s*/)[0];if(d||/\S/.test(h.text)){if("smart"==c&&(k=e.mode.indent(f,h.text.slice(j.length),h.text),k==Uf||k>150)){if(!d)return;c="prev"}}else k=0,c="not";"prev"==c?k=b>e.first?Zf(ff(e,b-1).text,null,g):0:"add"==c?k=i+a.options.indentUnit:"subtract"==c?k=i-a.options.indentUnit:"number"==typeof c&&(k=i+c),k=Math.max(0,k);
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b=a.scrollWidth>a.clientWidth+1,c=a.scrollHeight>a.clientHeight+1,d=a.nativeBarWidth;if(c){this.vert.style.display="block",this.vert.style.bottom=b?d+"px":"0";var e=a.viewHeight-(b?d:0);this.vert.firstChild.style.height=Math.max(0,a.scrollHeight-a.clientHeight+e)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(b){this.horiz.style.display="block",this.horiz.style.right=c?d+"px":"0",this.horiz.style.left=a.barLeft+"px";var f=a.viewWidth-a.barLeft-(c?d:0);this.horiz.firstChild.style.width=a.scrollWidth-a.clientWidth+f+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedOverlay&&a.clientHeight>0&&(0==d&&this.overlayHack(),this.checkedOverlay=!0),{right:c?d:0,bottom:b?d:0}},setScrollLeft:function(a){this.horiz.scrollLeft!=a&&(this.horiz.scrollLeft=a)},setScrollTop:function(a){this.vert.scrollTop!=a&&(this.vert.scrollTop=a)},overlayHack:function(){var a=o&&!k?"12px":"18px";this.horiz.style.minHeight=this.vert.style.minWidth=a;var b=this,c=function(a){Hf(a)!=b.vert&&Hf(a)!=b.horiz&&dc(b.cm,uc)(a)};Jf(this.vert,"mousedown",c),Jf(this.horiz,"mousedown",c)},clear:function(){var a=this.horiz.parentNode;a.removeChild(this.horiz),a.removeChild(this.vert)}},K.prototype),L.prototype=hg({update:function(){return{bottom:0,right:0}},setScrollLeft:function(){},setScrollTop:function(){},clear:function(){}},L.prototype),v.scrollbarModel={"native":K,"null":L},U.prototype.signal=function(a,b){Rf(a,b)&&this.events.push(arguments)},U.prototype.finish=function(){for(var a=0;a<this.events.length;a++)Lf.apply(null,this.events[a])};var oa=v.Pos=function(a,b){return this instanceof oa?(this.line=a,void(this.ch=b)):new oa(a,b)},pa=v.cmpPos=function(a,b){return a.line-b.line||a.ch-b.ch},va=null;Ba.prototype=hg({init:function(a){function h(a){if(c.somethingSelected())va=c.getSelections(),b.inaccurateSelection&&(b.prevInput="",b.inaccurateSelection=!1,g.value=va.join("\n"),cg(g));else{if(!c.options.lineWiseCopyCut)return;var d=za(c);va=d.text,"cut"==a.type?c.setSelections(d.ranges,null,Vf):(b.prevInput="",g.value=d.text.join("\n"),cg(g))}"cut"==a.type&&(c.state.cutIncoming=!0)}var b=this,c=this.cm,f=this.wrapper=Ca(),g=this.textarea=f.firstChild;a.wrapper.insertBefore(f,a.wrapper.firstChild),m&&(g.style.width="0px"),Jf(g,"input",function(){d&&e>=9&&b.hasSelection&&(b.hasSelection=null),b.poll()}),Jf(g,"paste",function(a){return xa(a,c)?!0:(c.state.pasteIncoming=!0,void b.fastPoll())}),Jf(g,"cut",h),Jf(g,"copy",h),Jf(a.scroller,"paste",function(d){sc(a,d)||(c.state.pasteIncoming=!0,b.focus())}),Jf(a.lineSpace,"selectstart",function(b){sc(a,b)||Df(b)}),Jf(g,"compositionstart",function(){var a=c.getCursor("from");b.composing={
-start:a,range:c.markText(a,c.getCursor("to"),{className:"CodeMirror-composing"})}}),Jf(g,"compositionend",function(){b.composing&&(b.poll(),b.composing.range.clear(),b.composing=null)})},prepareSelection:function(){var a=this.cm,b=a.display,c=a.doc,d=eb(a);if(a.options.moveInputWithCursor){var e=Lb(a,c.sel.primary().head,"div"),f=b.wrapper.getBoundingClientRect(),g=b.lineDiv.getBoundingClientRect();d.teTop=Math.max(0,Math.min(b.wrapper.clientHeight-10,e.top+g.top-f.top)),d.teLeft=Math.max(0,Math.min(b.wrapper.clientWidth-10,e.left+g.left-f.left))}return d},showSelection:function(a){var b=this.cm,c=b.display;sg(c.cursorDiv,a.cursors),sg(c.selectionDiv,a.selection),null!=a.teTop&&(this.wrapper.style.top=a.teTop+"px",this.wrapper.style.left=a.teLeft+"px")},reset:function(a){if(!this.contextMenuPending){var b,c,f=this.cm,g=f.doc;if(f.somethingSelected()){this.prevInput="";var h=g.sel.primary();b=Kg&&(h.to().line-h.from().line>100||(c=f.getSelection()).length>1e3);var i=b?"-":c||f.getSelection();this.textarea.value=i,f.state.focused&&cg(this.textarea),d&&e>=9&&(this.hasSelection=i)}else a||(this.prevInput=this.textarea.value="",d&&e>=9&&(this.hasSelection=null));this.inaccurateSelection=b}},getField:function(){return this.textarea},supportsTouch:function(){return!1},focus:function(){if("nocursor"!=this.cm.options.readOnly&&(!n||ug()!=this.textarea))try{this.textarea.focus()}catch(a){}},blur:function(){this.textarea.blur()},resetPosition:function(){this.wrapper.style.top=this.wrapper.style.left=0},receivedFocus:function(){this.slowPoll()},slowPoll:function(){var a=this;a.pollingFast||a.polling.set(this.cm.options.pollInterval,function(){a.poll(),a.cm.state.focused&&a.slowPoll()})},fastPoll:function(){function c(){var d=b.poll();d||a?(b.pollingFast=!1,b.slowPoll()):(a=!0,b.polling.set(60,c))}var a=!1,b=this;b.pollingFast=!0,b.polling.set(20,c)},poll:function(){var a=this.cm,b=this.textarea,c=this.prevInput;if(this.contextMenuPending||!a.state.focused||Jg(b)&&!c&&!this.composing||ua(a)||a.options.disableInput||a.state.keySeq)return!1;var f=b.value;if(f==c&&!a.somethingSelected())return!1;if(d&&e>=9&&this.hasSelection===f||o&&/[\uf700-\uf7ff]/.test(f))return a.display.input.reset(),!1;if(a.doc.sel==a.display.selForContextMenu){var g=f.charCodeAt(0);if(8203!=g||c||(c="\u200b"),8666==g)return this.reset(),this.cm.execCommand("undo")}for(var h=0,i=Math.min(c.length,f.length);i>h&&c.charCodeAt(h)==f.charCodeAt(h);)++h;var j=this;return cc(a,function(){wa(a,f.slice(h),c.length-h,null,j.composing?"*compose":null),f.length>1e3||f.indexOf("\n")>-1?b.value=j.prevInput="":j.prevInput=f,j.composing&&(j.composing.range.clear(),j.composing.range=a.markText(j.composing.start,a.getCursor("to"),{className:"CodeMirror-composing"}))}),!0},ensurePolled:function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},onKeyPress:function(){d&&e>=9&&(this.hasSelection=null),this.fastPoll()},onContextMenu:function(a){function o(){if(null!=h.selectionStart){var a=c.somethingSelected(),d="\u200b"+(a?h.value:"");h.value="\u21da",h.value=d,b.prevInput=a?"":"\u200b",h.selectionStart=1,h.selectionEnd=d.length,g.selForContextMenu=c.doc.sel}}function p(){if(b.contextMenuPending=!1,b.wrapper.style.position="relative",h.style.cssText=m,d&&9>e&&g.scrollbars.setScrollTop(g.scroller.scrollTop=k),null!=h.selectionStart){(!d||d&&9>e)&&o();var a=0,f=function(){g.selForContextMenu==c.doc.sel&&0==h.selectionStart&&h.selectionEnd>0&&"\u200b"==b.prevInput?dc(c,Ld.selectAll)(c):a++<10?g.detectingSelectAll=setTimeout(f,500):g.input.reset()};g.detectingSelectAll=setTimeout(f,200)}}var b=this,c=b.cm,g=c.display,h=b.textarea,j=tc(c,a),k=g.scroller.scrollTop;if(j&&!i){var l=c.options.resetSelectionOnContextMenu;l&&-1==c.doc.sel.contains(j)&&dc(c,Za)(c.doc,Ma(j),Vf);var m=h.style.cssText;if(b.wrapper.style.position="absolute",h.style.cssText="position: fixed; width: 30px; height: 30px; top: "+(a.clientY-5)+"px; left: "+(a.clientX-5)+"px; z-index: 1000; background: "+(d?"rgba(255, 255, 255, .05)":"transparent")+"; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",f)var n=window.scrollY;if(g.input.focus(),f&&window.scrollTo(null,n),g.input.reset(),c.somethingSelected()||(h.value=b.prevInput=" "),b.contextMenuPending=!0,g.selForContextMenu=c.doc.sel,clearTimeout(g.detectingSelectAll),d&&e>=9&&o(),s){Gf(a);var q=function(){Kf(window,"mouseup",q),setTimeout(p,20)};Jf(window,"mouseup",q)}else setTimeout(p,50)}},setUneditable:fg,needsContentAttribute:!1},Ba.prototype),Da.prototype=hg({init:function(a){function e(a){if(c.somethingSelected())va=c.getSelections(),"cut"==a.type&&c.replaceSelection("",null,"cut");else{if(!c.options.lineWiseCopyCut)return;var b=za(c);va=b.text,"cut"==a.type&&c.operation(function(){c.setSelections(b.ranges,0,Vf),c.replaceSelection("",null,"cut")})}if(a.clipboardData&&!m)a.preventDefault(),a.clipboardData.clearData(),a.clipboardData.setData("text/plain",va.join("\n"));else{var d=Ca(),e=d.firstChild;c.display.lineSpace.insertBefore(d,c.display.lineSpace.firstChild),e.value=va.join("\n");var f=document.activeElement;cg(e),setTimeout(function(){c.display.lineSpace.removeChild(d),f.focus()},50)}}var b=this,c=b.cm,d=b.div=a.lineDiv;d.contentEditable="true",Aa(d),Jf(d,"paste",function(a){xa(a,c)}),Jf(d,"compositionstart",function(a){var d=a.data;if(b.composing={sel:c.doc.sel,data:d,startData:d},d){var e=c.doc.sel.primary(),f=c.getLine(e.head.line),g=f.indexOf(d,Math.max(0,e.head.ch-d.length));g>-1&&g<=e.head.ch&&(b.composing.sel=Ma(oa(e.head.line,g),oa(e.head.line,g+d.length)))}}),Jf(d,"compositionupdate",function(a){b.composing.data=a.data}),Jf(d,"compositionend",function(a){var c=b.composing;c&&(a.data==c.startData||/\u200b/.test(a.data)||(c.data=a.data),setTimeout(function(){c.handled||b.applyComposition(c),b.composing==c&&(b.composing=null)},50))}),Jf(d,"touchstart",function(){b.forceCompositionEnd()}),Jf(d,"input",function(){b.composing||b.pollContent()||cc(b.cm,function(){ic(c)})}),Jf(d,"copy",e),Jf(d,"cut",e)},prepareSelection:function(){var a=eb(this.cm,!1);return a.focus=this.cm.state.focused,a},showSelection:function(a){a&&this.cm.display.view.length&&(a.focus&&this.showPrimarySelection(),this.showMultipleSelections(a))},showPrimarySelection:function(){var b=window.getSelection(),c=this.cm.doc.sel.primary(),d=Ga(this.cm,b.anchorNode,b.anchorOffset),e=Ga(this.cm,b.focusNode,b.focusOffset);if(!d||d.bad||!e||e.bad||0!=pa(sa(d,e),c.from())||0!=pa(ra(d,e),c.to())){var f=Ea(this.cm,c.from()),g=Ea(this.cm,c.to());if(f||g){var h=this.cm.display.view,i=b.rangeCount&&b.getRangeAt(0);if(f){if(!g){var j=h[h.length-1].measure,k=j.maps?j.maps[j.maps.length-1]:j.map;g={node:k[k.length-1],offset:k[k.length-2]-k[k.length-3]}}}else f={node:h[0].measure.map[2],offset:0};try{var l=qg(f.node,f.offset,g.offset,g.node)}catch(m){}l&&(b.removeAllRanges(),b.addRange(l),i&&null==b.anchorNode?b.addRange(i):a&&this.startGracePeriod()),this.rememberSelection()}}},startGracePeriod:function(){var a=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout(function(){a.gracePeriod=!1,a.selectionChanged()&&a.cm.operation(function(){a.cm.curOp.selectionChanged=!0})},20)},showMultipleSelections:function(a){sg(this.cm.display.cursorDiv,a.cursors),sg(this.cm.display.selectionDiv,a.selection)},rememberSelection:function(){var a=window.getSelection();this.lastAnchorNode=a.anchorNode,this.lastAnchorOffset=a.anchorOffset,this.lastFocusNode=a.focusNode,this.lastFocusOffset=a.focusOffset},selectionInEditor:function(){var a=window.getSelection();if(!a.rangeCount)return!1;var b=a.getRangeAt(0).commonAncestorContainer;return tg(this.div,b)},focus:function(){"nocursor"!=this.cm.options.readOnly&&this.div.focus()},blur:function(){this.div.blur()},getField:function(){return this.div},supportsTouch:function(){return!0},receivedFocus:function(){function b(){a.cm.state.focused&&(a.pollSelection(),a.polling.set(a.cm.options.pollInterval,b))}var a=this;this.selectionInEditor()?this.pollSelection():cc(this.cm,function(){a.cm.curOp.selectionChanged=!0}),this.polling.set(this.cm.options.pollInterval,b)},selectionChanged:function(){var a=window.getSelection();return a.anchorNode!=this.lastAnchorNode||a.anchorOffset!=this.lastAnchorOffset||a.focusNode!=this.lastFocusNode||a.focusOffset!=this.lastFocusOffset},pollSelection:function(){if(!this.composing&&!this.gracePeriod&&this.selectionChanged()){var a=window.getSelection(),b=this.cm;this.rememberSelection();var c=Ga(b,a.anchorNode,a.anchorOffset),d=Ga(b,a.focusNode,a.focusOffset);c&&d&&cc(b,function(){Za(b.doc,Ma(c,d),Vf),(c.bad||d.bad)&&(b.curOp.selectionChanged=!0)})}},pollContent:function(){var a=this.cm,b=a.display,c=a.doc.sel.primary(),d=c.from(),e=c.to();if(d.line<b.viewFrom||e.line>b.viewTo-1)return!1;var f;if(d.line==b.viewFrom||0==(f=lc(a,d.line)))var g=kf(b.view[0].line),h=b.view[0].node;else var g=kf(b.view[f].line),h=b.view[f-1].node.nextSibling;var i=lc(a,e.line);if(i==b.view.length-1)var j=b.viewTo-1,k=b.lineDiv.lastChild;else var j=kf(b.view[i+1].line)-1,k=b.view[i+1].node.previousSibling;for(var l=a.doc.splitLines(Ia(a,h,k,g,j)),m=gf(a.doc,oa(g,0),oa(j,ff(a.doc,j).text.length));l.length>1&&m.length>1;)if(bg(l)==bg(m))l.pop(),m.pop(),j--;else{if(l[0]!=m[0])break;l.shift(),m.shift(),g++}for(var n=0,o=0,p=l[0],q=m[0],r=Math.min(p.length,q.length);r>n&&p.charCodeAt(n)==q.charCodeAt(n);)++n;for(var s=bg(l),t=bg(m),u=Math.min(s.length-(1==l.length?n:0),t.length-(1==m.length?n:0));u>o&&s.charCodeAt(s.length-o-1)==t.charCodeAt(t.length-o-1);)++o;l[l.length-1]=s.slice(0,s.length-o),l[0]=l[0].slice(n);var v=oa(g,n),w=oa(j,m.length?bg(m).length-o:0);return l.length>1||l[0]||pa(v,w)?(nd(a.doc,l,v,w,"+input"),!0):void 0},ensurePolled:function(){this.forceCompositionEnd()},reset:function(){this.forceCompositionEnd()},forceCompositionEnd:function(){this.composing&&!this.composing.handled&&(this.applyComposition(this.composing),this.composing.handled=!0,this.div.blur(),this.div.focus())},applyComposition:function(a){a.data&&a.data!=a.startData&&dc(this.cm,wa)(this.cm,a.data,0,a.sel)},setUneditable:function(a){a.setAttribute("contenteditable","false")},onKeyPress:function(a){a.preventDefault(),dc(this.cm,wa)(this.cm,String.fromCharCode(null==a.charCode?a.keyCode:a.charCode),0)},onContextMenu:fg,resetPosition:fg,needsContentAttribute:!0},Da.prototype),v.inputStyles={textarea:Ba,contenteditable:Da},Ja.prototype={primary:function(){return this.ranges[this.primIndex]},equals:function(a){if(a==this)return!0;if(a.primIndex!=this.primIndex||a.ranges.length!=this.ranges.length)return!1;for(var b=0;b<this.ranges.length;b++){var c=this.ranges[b],d=a.ranges[b];if(0!=pa(c.anchor,d.anchor)||0!=pa(c.head,d.head))return!1}return!0},deepCopy:function(){for(var a=[],b=0;b<this.ranges.length;b++)a[b]=new Ka(qa(this.ranges[b].anchor),qa(this.ranges[b].head));return new Ja(a,this.primIndex)},somethingSelected:function(){for(var a=0;a<this.ranges.length;a++)if(!this.ranges[a].empty())return!0;return!1},contains:function(a,b){b||(b=a);for(var c=0;c<this.ranges.length;c++){var d=this.ranges[c];if(pa(b,d.from())>=0&&pa(a,d.to())<=0)return c}return-1}},Ka.prototype={from:function(){return sa(this.anchor,this.head)},to:function(){return ra(this.anchor,this.head)},empty:function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch}};var Qb,vc,wc,zb={left:0,right:0,top:0,bottom:0},Tb=null,Ub=0,Cc=0,Jc=0,Kc=null;d?Kc=-.53:a?Kc=15:h?Kc=-.7:j&&(Kc=-1/3);var Lc=function(a){var b=a.wheelDeltaX,c=a.wheelDeltaY;return null==b&&a.detail&&a.axis==a.HORIZONTAL_AXIS&&(b=a.detail),null==c&&a.detail&&a.axis==a.VERTICAL_AXIS?c=a.detail:null==c&&(c=a.wheelDelta),{x:b,y:c}};v.wheelEventPixels=function(a){var b=Lc(a);return b.x*=Kc,b.y*=Kc,b};var Pc=new Yf,Tc=null,bd=v.changeEnd=function(a){return a.text?oa(a.from.line+a.text.length-1,bg(a.text).length+(1==a.text.length?a.from.ch:0)):a.to};v.prototype={constructor:v,focus:function(){window.focus(),this.display.input.focus()},setOption:function(a,b){var c=this.options,d=c[a];(c[a]!=b||"mode"==a)&&(c[a]=b,Bd.hasOwnProperty(a)&&dc(this,Bd[a])(this,b,d))},getOption:function(a){return this.options[a]},getDoc:function(){return this.doc},addKeyMap:function(a,b){this.state.keyMaps[b?"push":"unshift"](Rd(a))},removeKeyMap:function(a){for(var b=this.state.keyMaps,c=0;c<b.length;++c)if(b[c]==a||b[c].name==a)return b.splice(c,1),!0},addOverlay:ec(function(a,b){var c=a.token?a:v.getMode(this.options,a);if(c.startState)throw new Error("Overlays may not be stateful.");this.state.overlays.push({mode:c,modeSpec:a,opaque:b&&b.opaque}),this.state.modeGen++,ic(this)}),removeOverlay:ec(function(a){for(var b=this.state.overlays,c=0;c<b.length;++c){var d=b[c].modeSpec;if(d==a||"string"==typeof a&&d.name==a)return b.splice(c,1),this.state.modeGen++,void ic(this)}}),indentLine:ec(function(a,b,c){"string"!=typeof b&&"number"!=typeof b&&(b=null==b?this.options.smartIndent?"smart":"prev":b?"add":"subtract"),Qa(this.doc,a)&&vd(this,a,b,c)}),indentSelection:ec(function(a){for(var b=this.doc.sel.ranges,c=-1,d=0;d<b.length;d++){var e=b[d];if(e.empty())e.head.line>c&&(vd(this,e.head.line,a,!0),c=e.head.line,d==this.doc.sel.primIndex&&td(this));else{var f=e.from(),g=e.to(),h=Math.max(c,f.line);c=Math.min(this.lastLine(),g.line-(g.ch?0:1))+1;for(var i=h;c>i;++i)vd(this,i,a);var j=this.doc.sel.ranges;0==f.ch&&b.length==j.length&&j[d].from().ch>0&&Va(this.doc,d,new Ka(f,j[d].to()),Vf)}}}),getTokenAt:function(a,b){return Ie(this,a,b)},getLineTokens:function(a,b){return Ie(this,oa(a),b,!0)},getTokenTypeAt:function(a){a=Oa(this.doc,a);var f,b=Le(this,ff(this.doc,a.line)),c=0,d=(b.length-1)/2,e=a.ch;if(0==e)f=b[2];else for(;;){var g=c+d>>1;if((g?b[2*g-1]:0)>=e)d=g;else{if(!(b[2*g+1]<e)){f=b[2*g+2];break}c=g+1}}var h=f?f.indexOf("cm-overlay "):-1;return 0>h?f:0==h?null:f.slice(0,h-1)},getModeAt:function(a){var b=this.doc.mode;return b.innerMode?v.innerMode(b,this.getTokenAt(a).state).mode:b},getHelper:function(a,b){return this.getHelpers(a,b)[0]},getHelpers:function(a,b){var c=[];if(!Id.hasOwnProperty(b))return c;var d=Id[b],e=this.getModeAt(a);if("string"==typeof e[b])d[e[b]]&&c.push(d[e[b]]);else if(e[b])for(var f=0;f<e[b].length;f++){var g=d[e[b][f]];g&&c.push(g)}else e.helperType&&d[e.helperType]?c.push(d[e.helperType]):d[e.name]&&c.push(d[e.name]);for(var f=0;f<d._global.length;f++){var h=d._global[f];h.pred(e,this)&&-1==dg(c,h.val)&&c.push(h.val)}return c},getStateAfter:function(a,b){var c=this.doc;return a=Na(c,null==a?c.first+c.size-1:a),lb(this,a+1,b)},cursorCoords:function(a,b){var c,d=this.doc.sel.primary();return c=null==a?d.head:"object"==typeof a?Oa(this.doc,a):a?d.from():d.to(),Lb(this,c,b||"page")},charCoords:function(a,b){return Kb(this,Oa(this.doc,a),b||"page")},coordsChar:function(a,b){return a=Jb(this,a,b||"page"),Ob(this,a.left,a.top)},lineAtHeight:function(a,b){return a=Jb(this,{top:a,left:0},b||"page").top,lf(this.doc,a+this.display.viewOffset)},heightAtLine:function(a,b){var d,c=!1;if("number"==typeof a){var e=this.doc.first+this.doc.size-1;a<this.doc.first?a=this.doc.first:a>e&&(a=e,c=!0),d=ff(this.doc,a)}else d=a;return Ib(this,d,{top:0,left:0},b||"page").top+(c?this.doc.height-mf(d):0)},defaultTextHeight:function(){return Rb(this.display)},defaultCharWidth:function(){return Sb(this.display)},setGutterMarker:ec(function(a,b,c){return wd(this.doc,a,"gutter",function(a){var d=a.gutterMarkers||(a.gutterMarkers={});return d[b]=c,!c&&mg(d)&&(a.gutterMarkers=null),!0})}),clearGutter:ec(function(a){var b=this,c=b.doc,d=c.first;c.iter(function(c){c.gutterMarkers&&c.gutterMarkers[a]&&(c.gutterMarkers[a]=null,jc(b,d,"gutter"),mg(c.gutterMarkers)&&(c.gutterMarkers=null)),++d})}),lineInfo:function(a){if("number"==typeof a){if(!Qa(this.doc,a))return null;var b=a;if(a=ff(this.doc,a),!a)return null}else{var b=kf(a);if(null==b)return null}return{line:b,handle:a,text:a.text,gutterMarkers:a.gutterMarkers,textClass:a.textClass,bgClass:a.bgClass,wrapClass:a.wrapClass,widgets:a.widgets}},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(a,b,c,d,e){var f=this.display;a=Lb(this,Oa(this.doc,a));var g=a.bottom,h=a.left;if(b.style.position="absolute",b.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(b),f.sizer.appendChild(b),"over"==d)g=a.top;else if("above"==d||"near"==d){var i=Math.max(f.wrapper.clientHeight,this.doc.height),j=Math.max(f.sizer.clientWidth,f.lineSpace.clientWidth);("above"==d||a.bottom+b.offsetHeight>i)&&a.top>b.offsetHeight?g=a.top-b.offsetHeight:a.bottom+b.offsetHeight<=i&&(g=a.bottom),h+b.offsetWidth>j&&(h=j-b.offsetWidth)}b.style.top=g+"px",b.style.left=b.style.right="","right"==e?(h=f.sizer.clientWidth-b.offsetWidth,b.style.right="0px"):("left"==e?h=0:"middle"==e&&(h=(f.sizer.clientWidth-b.offsetWidth)/2),b.style.left=h+"px"),c&&qd(this,h,g,h+b.offsetWidth,g+b.offsetHeight)},triggerOnKeyDown:ec(Uc),triggerOnKeyPress:ec(Xc),triggerOnKeyUp:Wc,execCommand:function(a){return Ld.hasOwnProperty(a)?Ld[a].call(null,this):void 0},triggerElectric:ec(function(a){ya(this,a)}),findPosH:function(a,b,c,d){var e=1;0>b&&(e=-1,b=-b);for(var f=0,g=Oa(this.doc,a);b>f&&(g=yd(this.doc,g,e,c,d),!g.hitSide);++f);return g},moveH:ec(function(a,b){var c=this;c.extendSelectionsBy(function(d){return c.display.shift||c.doc.extend||d.empty()?yd(c.doc,d.head,a,b,c.options.rtlMoveVisually):0>a?d.from():d.to()},Xf)}),deleteH:ec(function(a,b){var c=this.doc.sel,d=this.doc;c.somethingSelected()?d.replaceSelection("",null,"+delete"):xd(this,function(c){var e=yd(d,c.head,a,b,!1);return 0>a?{from:e,to:c.head}:{from:c.head,to:e}})}),findPosV:function(a,b,c,d){var e=1,f=d;0>b&&(e=-1,b=-b);for(var g=0,h=Oa(this.doc,a);b>g;++g){var i=Lb(this,h,"div");if(null==f?f=i.left:i.left=f,h=zd(this,i,e,c),h.hitSide)break}return h},moveV:ec(function(a,b){var c=this,d=this.doc,e=[],f=!c.display.shift&&!d.extend&&d.sel.somethingSelected();if(d.extendSelectionsBy(function(g){if(f)return 0>a?g.from():g.to();var h=Lb(c,g.head,"div");null!=g.goalColumn&&(h.left=g.goalColumn),e.push(h.left);var i=zd(c,h,a,b);return"page"==b&&g==d.sel.primary()&&sd(c,null,Kb(c,i,"div").top-h.top),i},Xf),e.length)for(var g=0;g<d.sel.ranges.length;g++)d.sel.ranges[g].goalColumn=e[g]}),findWordAt:function(a){var b=this.doc,c=ff(b,a.line).text,d=a.ch,e=a.ch;if(c){var f=this.getHelper(a,"wordChars");(a.xRel<0||e==c.length)&&d?--d:++e;for(var g=c.charAt(d),h=lg(g,f)?function(a){return lg(a,f)}:/\s/.test(g)?function(a){return/\s/.test(a)}:function(a){return!/\s/.test(a)&&!lg(a)};d>0&&h(c.charAt(d-1));)--d;for(;e<c.length&&h(c.charAt(e));)++e}return new Ka(oa(a.line,d),oa(a.line,e))},toggleOverwrite:function(a){(null==a||a!=this.state.overwrite)&&((this.state.overwrite=!this.state.overwrite)?xg(this.display.cursorDiv,"CodeMirror-overwrite"):wg(this.display.cursorDiv,"CodeMirror-overwrite"),Lf(this,"overwriteToggle",this,this.state.overwrite))},hasFocus:function(){return this.display.input.getField()==ug()},scrollTo:ec(function(a,b){(null!=a||null!=b)&&ud(this),null!=a&&(this.curOp.scrollLeft=a),null!=b&&(this.curOp.scrollTop=b)}),getScrollInfo:function(){var a=this.display.scroller;return{left:a.scrollLeft,top:a.scrollTop,height:a.scrollHeight-pb(this)-this.display.barHeight,width:a.scrollWidth-pb(this)-this.display.barWidth,clientHeight:rb(this),clientWidth:qb(this)}},scrollIntoView:ec(function(a,b){if(null==a?(a={from:this.doc.sel.primary().head,to:null},null==b&&(b=this.options.cursorScrollMargin)):"number"==typeof a?a={from:oa(a,0),to:null}:null==a.from&&(a={from:a,to:null}),a.to||(a.to=a.from),a.margin=b||0,null!=a.from.line)ud(this),this.curOp.scrollToPos=a;else{var c=rd(this,Math.min(a.from.left,a.to.left),Math.min(a.from.top,a.to.top)-a.margin,Math.max(a.from.right,a.to.right),Math.max(a.from.bottom,a.to.bottom)+a.margin);this.scrollTo(c.scrollLeft,c.scrollTop)}}),setSize:ec(function(a,b){function d(a){return"number"==typeof a||/^\d+$/.test(String(a))?a+"px":a}var c=this;null!=a&&(c.display.wrapper.style.width=d(a)),null!=b&&(c.display.wrapper.style.height=d(b)),c.options.lineWrapping&&Eb(this);var e=c.display.viewFrom;c.doc.iter(e,c.display.viewTo,function(a){if(a.widgets)for(var b=0;b<a.widgets.length;b++)if(a.widgets[b].noHScroll){jc(c,e,"widget");break}++e}),c.curOp.forceUpdate=!0,Lf(c,"refresh",this)}),operation:function(a){return cc(this,a)},refresh:ec(function(){var a=this.display.cachedTextHeight;ic(this),this.curOp.forceUpdate=!0,Fb(this),this.scrollTo(this.doc.scrollLeft,this.doc.scrollTop),F(this),(null==a||Math.abs(a-Rb(this.display))>.5)&&B(this),Lf(this,"refresh",this)}),swapDoc:ec(function(a){var b=this.doc;return b.cm=null,ef(this,a),Fb(this),this.display.input.reset(),this.scrollTo(a.scrollLeft,a.scrollTop),this.curOp.forceScroll=!0,Nf(this,"swapDoc",this,b),b}),getInputField:function(){return this.display.input.getField()},getWrapperElement:function(){return this.display.wrapper},getScrollerElement:function(){return this.display.scroller},getGutterElement:function(){return this.display.gutters}},Sf(v);var Ad=v.defaults={},Bd=v.optionHandlers={},Dd=v.Init={toString:function(){return"CodeMirror.Init"}};Cd("value","",function(a,b){a.setValue(b)},!0),Cd("mode",null,function(a,b){a.doc.modeOption=b,x(a)},!0),Cd("indentUnit",2,x,!0),Cd("indentWithTabs",!1),Cd("smartIndent",!0),Cd("tabSize",4,function(a){y(a),Fb(a),ic(a)},!0),Cd("lineSeparator",null,function(a,b){if(a.doc.lineSep=b,b){var c=[],d=a.doc.first;a.doc.iter(function(a){for(var e=0;;){var f=a.text.indexOf(b,e);if(-1==f)break;e=f+b.length,c.push(oa(d,f))}d++});for(var e=c.length-1;e>=0;e--)nd(a.doc,b,c[e],oa(c[e].line,c[e].ch+b.length))}}),Cd("specialChars",/[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g,function(a,b,c){a.state.specialChars=new RegExp(b.source+(b.test("	")?"":"|	"),"g"),c!=v.Init&&a.refresh()}),Cd("specialCharPlaceholder",Re,function(a){a.refresh()},!0),Cd("electricChars",!0),Cd("inputStyle",n?"contenteditable":"textarea",function(){throw new Error("inputStyle can not (yet) be changed in a running editor")},!0),Cd("rtlMoveVisually",!p),Cd("wholeLineUpdateBefore",!0),Cd("theme","default",function(a){C(a),D(a)},!0),Cd("keyMap","default",function(a,b,c){var d=Rd(b),e=c!=v.Init&&Rd(c);e&&e.detach&&e.detach(a,d),d.attach&&d.attach(a,e||null)}),Cd("extraKeys",null),Cd("lineWrapping",!1,z,!0),Cd("gutters",[],function(a){I(a.options),D(a)},!0),Cd("fixedGutter",!0,function(a,b){a.display.gutters.style.left=b?T(a.display)+"px":"0",a.refresh()},!0),Cd("coverGutterNextToScrollbar",!1,function(a){N(a)},!0),Cd("scrollbarStyle","native",function(a){M(a),N(a),a.display.scrollbars.setScrollTop(a.doc.scrollTop),a.display.scrollbars.setScrollLeft(a.doc.scrollLeft)},!0),Cd("lineNumbers",!1,function(a){I(a.options),D(a)},!0),Cd("firstLineNumber",1,D,!0),Cd("lineNumberFormatter",function(a){return a},D,!0),Cd("showCursorWhenSelecting",!1,db,!0),Cd("resetSelectionOnContextMenu",!0),Cd("lineWiseCopyCut",!0),Cd("readOnly",!1,function(a,b){"nocursor"==b?($c(a),a.display.input.blur(),a.display.disabled=!0):(a.display.disabled=!1,b||a.display.input.reset())}),Cd("disableInput",!1,function(a,b){b||a.display.input.reset()},!0),Cd("dragDrop",!0,qc),Cd("cursorBlinkRate",530),Cd("cursorScrollMargin",0),Cd("cursorHeight",1,db,!0),Cd("singleCursorHeightPerLine",!0,db,!0),Cd("workTime",100),Cd("workDelay",100),Cd("flattenSpans",!0,y,!0),Cd("addModeClass",!1,y,!0),Cd("pollInterval",100),Cd("undoDepth",200,function(a,b){a.doc.history.undoDepth=b}),Cd("historyEventDelay",1250),Cd("viewportMargin",10,function(a){a.refresh()},!0),Cd("maxHighlightLength",1e4,y,!0),Cd("moveInputWithCursor",!0,function(a,b){b||a.display.input.resetPosition()}),Cd("tabindex",null,function(a,b){a.display.input.getField().tabIndex=b||""}),Cd("autofocus",null);var Ed=v.modes={},Fd=v.mimeModes={};v.defineMode=function(a,b){v.defaults.mode||"null"==a||(v.defaults.mode=a),arguments.length>2&&(b.dependencies=Array.prototype.slice.call(arguments,2)),Ed[a]=b},v.defineMIME=function(a,b){Fd[a]=b},v.resolveMode=function(a){if("string"==typeof a&&Fd.hasOwnProperty(a))a=Fd[a];else if(a&&"string"==typeof a.name&&Fd.hasOwnProperty(a.name)){var b=Fd[a.name];"string"==typeof b&&(b={name:b}),a=gg(b,a),a.name=b.name}else if("string"==typeof a&&/^[\w\-]+\/[\w\-]+\+xml$/.test(a))return v.resolveMode("application/xml");return"string"==typeof a?{name:a}:a||{name:"null"}},v.getMode=function(a,b){var b=v.resolveMode(b),c=Ed[b.name];if(!c)return v.getMode(a,"text/plain");var d=c(a,b);if(Gd.hasOwnProperty(b.name)){var e=Gd[b.name];for(var f in e)e.hasOwnProperty(f)&&(d.hasOwnProperty(f)&&(d["_"+f]=d[f]),d[f]=e[f])}if(d.name=b.name,b.helperType&&(d.helperType=b.helperType),b.modeProps)for(var f in b.modeProps)d[f]=b.modeProps[f];return d},v.defineMode("null",function(){return{token:function(a){a.skipToEnd()}}}),v.defineMIME("text/plain","null");var Gd=v.modeExtensions={};v.extendMode=function(a,b){var c=Gd.hasOwnProperty(a)?Gd[a]:Gd[a]={};hg(b,c)},v.defineExtension=function(a,b){v.prototype[a]=b},v.defineDocExtension=function(a,b){af.prototype[a]=b},v.defineOption=Cd;var Hd=[];v.defineInitHook=function(a){Hd.push(a)};var Id=v.helpers={};v.registerHelper=function(a,b,c){Id.hasOwnProperty(a)||(Id[a]=v[a]={_global:[]}),Id[a][b]=c},v.registerGlobalHelper=function(a,b,c,d){v.registerHelper(a,b,d),Id[a]._global.push({pred:c,val:d})};var Jd=v.copyState=function(a,b){if(b===!0)return b;if(a.copyState)return a.copyState(b);var c={};for(var d in b){var e=b[d];e instanceof Array&&(e=e.concat([])),c[d]=e}return c},Kd=v.startState=function(a,b,c){return a.startState?a.startState(b,c):!0};v.innerMode=function(a,b){for(;a.innerMode;){var c=a.innerMode(b);if(!c||c.mode==a)break;b=c.state,a=c.mode}return c||{mode:a,state:b}};var Ld=v.commands={selectAll:function(a){a.setSelection(oa(a.firstLine(),0),oa(a.lastLine()),Vf)},singleSelection:function(a){a.setSelection(a.getCursor("anchor"),a.getCursor("head"),Vf)},killLine:function(a){xd(a,function(b){if(b.empty()){var c=ff(a.doc,b.head.line).text.length;return b.head.ch==c&&b.head.line<a.lastLine()?{from:b.head,to:oa(b.head.line+1,0)}:{from:b.head,to:oa(b.head.line,c)}}return{from:b.from(),to:b.to()}})},deleteLine:function(a){xd(a,function(b){return{from:oa(b.from().line,0),to:Oa(a.doc,oa(b.to().line+1,0))}})},delLineLeft:function(a){xd(a,function(a){return{from:oa(a.from().line,0),to:a.from()}})},delWrappedLineLeft:function(a){xd(a,function(b){var c=a.charCoords(b.head,"div").top+5,d=a.coordsChar({left:0,top:c},"div");return{from:d,to:b.from()}})},delWrappedLineRight:function(a){xd(a,function(b){var c=a.charCoords(b.head,"div").top+5,d=a.coordsChar({left:a.display.lineDiv.offsetWidth+100,top:c},"div");return{from:b.from(),to:d}})},undo:function(a){a.undo()},redo:function(a){a.redo()},undoSelection:function(a){a.undoSelection()},redoSelection:function(a){a.redoSelection()},goDocStart:function(a){a.extendSelection(oa(a.firstLine(),0))},goDocEnd:function(a){a.extendSelection(oa(a.lastLine()))},goLineStart:function(a){a.extendSelectionsBy(function(b){return Tg(a,b.head.line)},{origin:"+move",bias:1})},goLineStartSmart:function(a){a.extendSelectionsBy(function(b){return Vg(a,b.head)},{origin:"+move",bias:1})},goLineEnd:function(a){a.extendSelectionsBy(function(b){return Ug(a,b.head.line)},{origin:"+move",bias:-1})},goLineRight:function(a){a.extendSelectionsBy(function(b){var c=a.charCoords(b.head,"div").top+5;return a.coordsChar({left:a.display.lineDiv.offsetWidth+100,top:c},"div")},Xf)},goLineLeft:function(a){a.extendSelectionsBy(function(b){var c=a.charCoords(b.head,"div").top+5;return a.coordsChar({left:0,top:c},"div")},Xf)},goLineLeftSmart:function(a){a.extendSelectionsBy(function(b){var c=a.charCoords(b.head,"div").top+5,d=a.coordsChar({left:0,top:c},"div");return d.ch<a.getLine(d.line).search(/\S/)?Vg(a,b.head):d},Xf)},goLineUp:function(a){a.moveV(-1,"line")},goLineDown:function(a){a.moveV(1,"line")},goPageUp:function(a){a.moveV(-1,"page")},goPageDown:function(a){a.moveV(1,"page")},goCharLeft:function(a){a.moveH(-1,"char")},goCharRight:function(a){a.moveH(1,"char")},goColumnLeft:function(a){a.moveH(-1,"column")},goColumnRight:function(a){a.moveH(1,"column")},goWordLeft:function(a){a.moveH(-1,"word")},goGroupRight:function(a){a.moveH(1,"group")},goGroupLeft:function(a){a.moveH(-1,"group")},goWordRight:function(a){a.moveH(1,"word")},delCharBefore:function(a){a.deleteH(-1,"char")},delCharAfter:function(a){a.deleteH(1,"char")},delWordBefore:function(a){a.deleteH(-1,"word")},delWordAfter:function(a){a.deleteH(1,"word")},delGroupBefore:function(a){a.deleteH(-1,"group")},delGroupAfter:function(a){a.deleteH(1,"group")},indentAuto:function(a){a.indentSelection("smart")},indentMore:function(a){a.indentSelection("add")},indentLess:function(a){a.indentSelection("subtract")},insertTab:function(a){a.replaceSelection("	")},insertSoftTab:function(a){for(var b=[],c=a.listSelections(),d=a.options.tabSize,e=0;e<c.length;e++){var f=c[e].from(),g=Zf(a.getLine(f.line),f.ch,d);b.push(new Array(d-g%d+1).join(" "))}a.replaceSelections(b)},defaultTab:function(a){a.somethingSelected()?a.indentSelection("add"):a.execCommand("insertTab")},transposeChars:function(a){cc(a,function(){for(var b=a.listSelections(),c=[],d=0;d<b.length;d++){var e=b[d].head,f=ff(a.doc,e.line).text;if(f)if(e.ch==f.length&&(e=new oa(e.line,e.ch-1)),e.ch>0)e=new oa(e.line,e.ch+1),a.replaceRange(f.charAt(e.ch-1)+f.charAt(e.ch-2),oa(e.line,e.ch-2),e,"+transpose");else if(e.line>a.doc.first){var g=ff(a.doc,e.line-1).text;g&&a.replaceRange(f.charAt(0)+a.doc.lineSeparator()+g.charAt(g.length-1),oa(e.line-1,g.length-1),oa(e.line,1),"+transpose")}c.push(new Ka(e,e))}a.setSelections(c)})},newlineAndIndent:function(a){cc(a,function(){for(var b=a.listSelections().length,c=0;b>c;c++){var 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e=b.pairs+"`",f={Backspace:j,Enter:k},g=0;g<e.length;g++)f["'"+e.charAt(g)+"'"]=h(e.charAt(g))}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror"),require("../fold/xml-fold")):"function"==typeof define&&define.amd?define(["../../lib/codemirror","../fold/xml-fold"],a):a(CodeMirror)}(function(a){function d(d){if(d.getOption("disableInput"))return a.Pass;for(var e=d.listSelections(),f=[],i=0;i<e.length;i++){if(!e[i].empty())return a.Pass;var j=e[i].head,k=d.getTokenAt(j),l=a.innerMode(d.getMode(),k.state),m=l.state;if("xml"!=l.mode.name||!m.tagName)return a.Pass;var n=d.getOption("autoCloseTags"),o="html"==l.mode.configuration,p="object"==typeof n&&n.dontCloseTags||o&&b,q="object"==typeof n&&n.indentTags||o&&c,r=m.tagName;k.end>j.ch&&(r=r.slice(0,r.length-k.end+j.ch));var s=r.toLowerCase();if(!r||"string"==k.type&&(k.end!=j.ch||!/[\"\']/.test(k.string.charAt(k.string.length-1))||1==k.string.length)||"tag"==k.type&&"closeTag"==m.type||k.string.indexOf("/")==k.string.length-1||p&&g(p,s)>-1||h(d,r,j,m,!0))return a.Pass;var t=q&&g(q,s)>-1;f[i]={indent:t,text:">"+(t?"\n\n":"")+"</"+r+">",newPos:t?a.Pos(j.line+1,0):a.Pos(j.line,j.ch+1)}}for(var i=e.length-1;i>=0;i--){var u=f[i];d.replaceRange(u.text,e[i].head,e[i].anchor,"+insert");var v=d.listSelections().slice(0);v[i]={head:u.newPos,anchor:u.newPos},d.setSelections(v),u.indent&&(d.indentLine(u.newPos.line,null,!0),d.indentLine(u.newPos.line+1,null,!0))}}function e(b,c){for(var d=b.listSelections(),e=[],f=c?"/":"</",g=0;g<d.length;g++){if(!d[g].empty())return a.Pass;var i=d[g].head,j=b.getTokenAt(i),k=a.innerMode(b.getMode(),j.state),l=k.state;if(c&&("string"==j.type||"<"!=j.string.charAt(0)||j.start!=i.ch-1))return a.Pass;var m;if("xml"!=k.mode.name)if("htmlmixed"==b.getMode().name&&"javascript"==k.mode.name)m=f+"script";else{if("htmlmixed"!=b.getMode().name||"css"!=k.mode.name)return a.Pass;m=f+"style"}else{if(!l.context||!l.context.tagName||h(b,l.context.tagName,i,l))return a.Pass;m=f+l.context.tagName;
-}">"!=b.getLine(i.line).charAt(j.end)&&(m+=">"),e[g]=m}b.replaceSelections(e),d=b.listSelections();for(var g=0;g<d.length;g++)(g==d.length-1||d[g].head.line<d[g+1].head.line)&&b.indentLine(d[g].head.line)}function f(b){return b.getOption("disableInput")?a.Pass:e(b,!0)}function g(a,b){if(a.indexOf)return a.indexOf(b);for(var c=0,d=a.length;d>c;++c)if(a[c]==b)return c;return-1}function h(b,c,d,e,f){if(!a.scanForClosingTag)return!1;var g=Math.min(b.lastLine()+1,d.line+500),h=a.scanForClosingTag(b,d,null,g);if(!h||h.tag!=c)return!1;for(var i=e.context,j=f?1:0;i&&i.tagName==c;i=i.prev)++j;d=h.to;for(var k=1;j>k;k++){var l=a.scanForClosingTag(b,d,null,g);if(!l||l.tag!=c)return!1;d=l.to}return!0}a.defineOption("autoCloseTags",!1,function(b,c,e){if(e!=a.Init&&e&&b.removeKeyMap("autoCloseTags"),c){var g={name:"autoCloseTags"};("object"!=typeof c||c.whenClosing)&&(g["'/'"]=function(a){return f(a)}),("object"!=typeof c||c.whenOpening)&&(g["'>'"]=function(a){return d(a)}),b.addKeyMap(g)}});var b=["area","base","br","col","command","embed","hr","img","input","keygen","link","meta","param","source","track","wbr"],c=["applet","blockquote","body","button","div","dl","fieldset","form","frameset","h1","h2","h3","h4","h5","h6","head","html","iframe","layer","legend","object","ol","p","select","table","ul"];a.commands.closeTag=function(a){return e(a)}}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],a):a(CodeMirror)}(function(a){"use strict";function b(b,d,f,g){function j(a){var c=h(b,d);if(!c||c.to.line-c.from.line<i)return null;for(var e=b.findMarksAt(c.from),f=0;f<e.length;++f)if(e[f].__isFold&&"fold"!==g){if(!a)return null;c.cleared=!0,e[f].clear()}return c}if(f&&f.call){var h=f;f=null}else var h=e(b,f,"rangeFinder");"number"==typeof d&&(d=a.Pos(d,0));var i=e(b,f,"minFoldSize"),k=j(!0);if(e(b,f,"scanUp"))for(;!k&&d.line>b.firstLine();)d=a.Pos(d.line-1,0),k=j(!1);if(k&&!k.cleared&&"unfold"!==g){var l=c(b,f);a.on(l,"mousedown",function(b){m.clear(),a.e_preventDefault(b)});var m=b.markText(k.from,k.to,{replacedWith:l,clearOnEnter:!0,__isFold:!0});m.on("clear",function(c,d){a.signal(b,"unfold",b,c,d)}),a.signal(b,"fold",b,k.from,k.to)}}function c(a,b){var c=e(a,b,"widget");if("string"==typeof c){var d=document.createTextNode(c);c=document.createElement("span"),c.appendChild(d),c.className="CodeMirror-foldmarker"}return c}function e(a,b,c){if(b&&void 0!==b[c])return b[c];var e=a.options.foldOptions;return e&&void 0!==e[c]?e[c]:d[c]}a.newFoldFunction=function(a,c){return function(d,e){b(d,e,{rangeFinder:a,widget:c})}},a.defineExtension("foldCode",function(a,c,d){b(this,a,c,d)}),a.defineExtension("isFolded",function(a){for(var b=this.findMarksAt(a),c=0;c<b.length;++c)if(b[c].__isFold)return!0}),a.commands.toggleFold=function(a){a.foldCode(a.getCursor())},a.commands.fold=function(a){a.foldCode(a.getCursor(),null,"fold")},a.commands.unfold=function(a){a.foldCode(a.getCursor(),null,"unfold")},a.commands.foldAll=function(b){b.operation(function(){for(var c=b.firstLine(),d=b.lastLine();d>=c;c++)b.foldCode(a.Pos(c,0),null,"fold")})},a.commands.unfoldAll=function(b){b.operation(function(){for(var c=b.firstLine(),d=b.lastLine();d>=c;c++)b.foldCode(a.Pos(c,0),null,"unfold")})},a.registerHelper("fold","combine",function(){var a=Array.prototype.slice.call(arguments,0);return function(b,c){for(var d=0;d<a.length;++d){var e=a[d](b,c);if(e)return e}}}),a.registerHelper("fold","auto",function(a,b){for(var c=a.getHelpers(b,"fold"),d=0;d<c.length;d++){var e=c[d](a,b);if(e)return e}});var d={rangeFinder:a.fold.auto,widget:"\u2194",minFoldSize:0,scanUp:!1};a.defineOption("foldOptions",null),a.defineExtension("foldOption",function(a,b){return e(this,a,b)})}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror"),require("./foldcode")):"function"==typeof define&&define.amd?define(["../../lib/codemirror","./foldcode"],a):a(CodeMirror)}(function(a){"use strict";function c(a){this.options=a,this.from=this.to=0}function d(a){return a===!0&&(a={}),null==a.gutter&&(a.gutter="CodeMirror-foldgutter"),null==a.indicatorOpen&&(a.indicatorOpen="CodeMirror-foldgutter-open"),null==a.indicatorFolded&&(a.indicatorFolded="CodeMirror-foldgutter-folded"),a}function e(a,c){for(var d=a.findMarksAt(b(c)),e=0;e<d.length;++e)if(d[e].__isFold&&d[e].find().from.line==c)return d[e]}function f(a){if("string"==typeof a){var b=document.createElement("div");return b.className=a+" CodeMirror-guttermarker-subtle",b}return a.cloneNode(!0)}function g(a,c,d){var g=a.state.foldGutter.options,h=c,i=a.foldOption(g,"minFoldSize"),j=a.foldOption(g,"rangeFinder");a.eachLine(c,d,function(c){var d=null;if(e(a,h))d=f(g.indicatorFolded);else{var k=b(h,0),l=j&&j(a,k);l&&l.to.line-l.from.line>=i&&(d=f(g.indicatorOpen))}a.setGutterMarker(c,g.gutter,d),++h})}function h(a){var b=a.getViewport(),c=a.state.foldGutter;c&&(a.operation(function(){g(a,b.from,b.to)}),c.from=b.from,c.to=b.to)}function i(a,c,d){var f=a.state.foldGutter;if(f){var g=f.options;if(d==g.gutter){var h=e(a,c);h?h.clear():a.foldCode(b(c,0),g.rangeFinder)}}}function j(a){var b=a.state.foldGutter;if(b){var c=b.options;b.from=b.to=0,clearTimeout(b.changeUpdate),b.changeUpdate=setTimeout(function(){h(a)},c.foldOnChangeTimeSpan||600)}}function k(a){var b=a.state.foldGutter;if(b){var c=b.options;clearTimeout(b.changeUpdate),b.changeUpdate=setTimeout(function(){var c=a.getViewport();b.from==b.to||c.from-b.to>20||b.from-c.to>20?h(a):a.operation(function(){c.from<b.from&&(g(a,c.from,b.from),b.from=c.from),c.to>b.to&&(g(a,b.to,c.to),b.to=c.to)})},c.updateViewportTimeSpan||400)}}function l(a,b){var c=a.state.foldGutter;if(c){var d=b.line;d>=c.from&&d<c.to&&g(a,d,d+1)}}a.defineOption("foldGutter",!1,function(b,e,f){f&&f!=a.Init&&(b.clearGutter(b.state.foldGutter.options.gutter),b.state.foldGutter=null,b.off("gutterClick",i),b.off("change",j),b.off("viewportChange",k),b.off("fold",l),b.off("unfold",l),b.off("swapDoc",h)),e&&(b.state.foldGutter=new c(d(e)),h(b),b.on("gutterClick",i),b.on("change",j),b.on("viewportChange",k),b.on("fold",l),b.on("unfold",l),b.on("swapDoc",h))});var b=a.Pos}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],a):a(CodeMirror)}(function(a){"use strict";a.registerHelper("fold","indent",function(b,c){var d=b.getOption("tabSize"),e=b.getLine(c.line);if(/\S/.test(e)){for(var f=function(b){return a.countColumn(b,null,d)},g=f(e),h=null,i=c.line+1,j=b.lastLine();j>=i;++i){var k=b.getLine(i),l=f(k);if(l>g)h=i;else if(/\S/.test(k))break}return h?{from:a.Pos(c.line,e.length),to:a.Pos(h,b.getLine(h).length)}:void 0}})}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],a):a(CodeMirror)}(function(a){"use strict";function f(a){"object"==typeof a&&(this.minChars=a.minChars,this.style=a.style,this.showToken=a.showToken,this.delay=a.delay,this.wordsOnly=a.wordsOnly),null==this.style&&(this.style=c),null==this.minChars&&(this.minChars=b),null==this.delay&&(this.delay=d),null==this.wordsOnly&&(this.wordsOnly=e),this.overlay=this.timeout=null}function g(a){var b=a.state.matchHighlighter;clearTimeout(b.timeout),b.timeout=setTimeout(function(){h(a)},b.delay)}function h(a){a.operation(function(){var b=a.state.matchHighlighter;if(b.overlay&&(a.removeOverlay(b.overlay),b.overlay=null),!a.somethingSelected()&&b.showToken){for(var c=b.showToken===!0?/[\w$]/:b.showToken,d=a.getCursor(),e=a.getLine(d.line),f=d.ch,g=f;f&&c.test(e.charAt(f-1));)--f;for(;g<e.length&&c.test(e.charAt(g));)++g;return void(g>f&&a.addOverlay(b.overlay=k(e.slice(f,g),c,b.style)))}var h=a.getCursor("from"),j=a.getCursor("to");if(h.line==j.line&&(!b.wordsOnly||i(a,h,j))){var l=a.getRange(h,j).replace(/^\s+|\s+$/g,"");l.length>=b.minChars&&a.addOverlay(b.overlay=k(l,!1,b.style))}})}function i(a,b,c){var d=a.getRange(b,c);if(null!==d.match(/^\w+$/)){if(b.ch>0){var e={line:b.line,ch:b.ch-1},f=a.getRange(e,b);if(null===f.match(/\W/))return!1}if(c.ch<a.getLine(b.line).length){var e={line:c.line,ch:c.ch+1},f=a.getRange(c,e);if(null===f.match(/\W/))return!1}return!0}return!1}function j(a,b){return!(a.start&&b.test(a.string.charAt(a.start-1))||a.pos!=a.string.length&&b.test(a.string.charAt(a.pos)))}function k(a,b,c){return{token:function(d){return!d.match(a)||b&&!j(d,b)?(d.next(),void(d.skipTo(a.charAt(0))||d.skipToEnd())):c}}}var b=2,c="matchhighlight",d=100,e=!1;a.defineOption("highlightSelectionMatches",!1,function(b,c,d){if(d&&d!=a.Init){var e=b.state.matchHighlighter.overlay;e&&b.removeOverlay(e),clearTimeout(b.state.matchHighlighter.timeout),b.state.matchHighlighter=null,b.off("cursorActivity",g)}c&&(b.state.matchHighlighter=new f(c),h(b),b.on("cursorActivity",g))})}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],a):a(CodeMirror)}(function(a){function e(a,b,e,g){var h=a.getLineHandle(b.line),i=b.ch-1,j=i>=0&&d[h.text.charAt(i)]||d[h.text.charAt(++i)];if(!j)return null;var k=">"==j.charAt(1)?1:-1;if(e&&k>0!=(i==b.ch))return null;var l=a.getTokenTypeAt(c(b.line,i+1)),m=f(a,c(b.line,i+(k>0?1:0)),k,l||null,g);return null==m?null:{from:c(b.line,i),to:m&&m.pos,match:m&&m.ch==j.charAt(0),forward:k>0}}function f(a,b,e,f,g){for(var h=g&&g.maxScanLineLength||1e4,i=g&&g.maxScanLines||1e3,j=[],k=g&&g.bracketRegex?g.bracketRegex:/[(){}[\]]/,l=e>0?Math.min(b.line+i,a.lastLine()+1):Math.max(a.firstLine()-1,b.line-i),m=b.line;m!=l;m+=e){var n=a.getLine(m);if(n){var o=e>0?0:n.length-1,p=e>0?n.length:-1;if(!(n.length>h))for(m==b.line&&(o=b.ch-(0>e?1:0));o!=p;o+=e){var q=n.charAt(o);if(k.test(q)&&(void 0===f||a.getTokenTypeAt(c(m,o+1))==f)){var r=d[q];if(">"==r.charAt(1)==e>0)j.push(q);else{if(!j.length)return{pos:c(m,o),ch:q};j.pop()}}}}}return m-e==(e>0?a.lastLine():a.firstLine())?!1:null}function g(a,d,f){for(var g=a.state.matchBrackets.maxHighlightLineLength||1e3,h=[],i=a.listSelections(),j=0;j<i.length;j++){var k=i[j].empty()&&e(a,i[j].head,!1,f);if(k&&a.getLine(k.from.line).length<=g){var l=k.match?"CodeMirror-matchingbracket":"CodeMirror-nonmatchingbracket";h.push(a.markText(k.from,c(k.from.line,k.from.ch+1),{className:l})),k.to&&a.getLine(k.to.line).length<=g&&h.push(a.markText(k.to,c(k.to.line,k.to.ch+1),{className:l}))}}if(h.length){b&&a.state.focused&&a.focus();var m=function(){a.operation(function(){for(var a=0;a<h.length;a++)h[a].clear()})};if(!d)return m;setTimeout(m,800)}}function i(a){a.operation(function(){h&&(h(),h=null),h=g(a,!1,a.state.matchBrackets)})}var b=/MSIE \d/.test(navigator.userAgent)&&(null==document.documentMode||document.documentMode<8),c=a.Pos,d={"(":")>",")":"(<","[":"]>","]":"[<","{":"}>","}":"{<"},h=null;a.defineOption("matchBrackets",!1,function(b,c,d){d&&d!=a.Init&&b.off("cursorActivity",i),c&&(b.state.matchBrackets="object"==typeof c?c:{},b.on("cursorActivity",i))}),a.defineExtension("matchBrackets",function(){g(this,!0)}),a.defineExtension("findMatchingBracket",function(a,b,c){return e(this,a,b,c)}),a.defineExtension("scanForBracket",function(a,b,c,d){return f(this,a,b,c,d)})}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror"),require("../fold/xml-fold")):"function"==typeof define&&define.amd?define(["../../lib/codemirror","../fold/xml-fold"],a):a(CodeMirror)}(function(a){"use strict";function b(a){a.state.tagHit&&a.state.tagHit.clear(),a.state.tagOther&&a.state.tagOther.clear(),a.state.tagHit=a.state.tagOther=null}function c(c){c.state.failedTagMatch=!1,c.operation(function(){if(b(c),!c.somethingSelected()){var d=c.getCursor(),e=c.getViewport();e.from=Math.min(e.from,d.line),e.to=Math.max(d.line+1,e.to);var f=a.findMatchingTag(c,d,e);if(f){if(c.state.matchBothTags){var g="open"==f.at?f.open:f.close;g&&(c.state.tagHit=c.markText(g.from,g.to,{className:"CodeMirror-matchingtag"}))}var h="close"==f.at?f.open:f.close;h?c.state.tagOther=c.markText(h.from,h.to,{className:"CodeMirror-matchingtag"}):c.state.failedTagMatch=!0}}})}function d(a){a.state.failedTagMatch&&c(a)}a.defineOption("matchTags",!1,function(e,f,g){g&&g!=a.Init&&(e.off("cursorActivity",c),e.off("viewportChange",d),b(e)),f&&(e.state.matchBothTags="object"==typeof f&&f.bothTags,e.on("cursorActivity",c),e.on("viewportChange",d),c(e))}),a.commands.toMatchingTag=function(b){var c=a.findMatchingTag(b,b.getCursor());if(c){var d="close"==c.at?c.open:c.close;d&&b.extendSelection(d.to,d.from)}}}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror"),require("./searchcursor"),require("../dialog/dialog")):"function"==typeof define&&define.amd?define(["../../lib/codemirror","./searchcursor","../dialog/dialog"],a):a(CodeMirror)}(function(a){"use strict";function b(a,b){return"string"==typeof a?a=new RegExp(a.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&"),b?"gi":"g"):a.global||(a=new RegExp(a.source,a.ignoreCase?"gi":"g")),{token:function(b){a.lastIndex=b.pos;var c=a.exec(b.string);return c&&c.index==b.pos?(b.pos+=c[0].length,"searching"):void(c?b.pos=c.index:b.skipToEnd())}}}function c(){this.posFrom=this.posTo=this.lastQuery=this.query=null,this.overlay=null}function d(a){return a.state.search||(a.state.search=new c)}function e(a){return"string"==typeof a&&a==a.toLowerCase()}function f(a,b,c){return a.getSearchCursor(b,c,e(b))}function g(a,b,c,d){a.openDialog(b,d,{value:c,selectValueOnOpen:!0,closeOnEnter:!1,onClose:function(){p(a)}})}function h(a,b,c,d,e){a.openDialog?a.openDialog(b,e,{value:d,selectValueOnOpen:!0}):e(prompt(c,d))}function i(a,b,c,d){a.openConfirm?a.openConfirm(b,d):confirm(c)&&d[0]()}function j(a){return a.replace(/\\(.)/g,function(a,b){return"n"==b?"\n":"r"==b?"\r":b})}function k(a){var b=a.match(/^\/(.*)\/([a-z]*)$/);if(b)try{a=new RegExp(b[1],-1==b[2].indexOf("i")?"":"i")}catch(c){}else a=j(a);return("string"==typeof a?""==a:a.test(""))&&(a=/x^/),a}function m(a,c,d){c.queryText=d,c.query=k(d),a.removeOverlay(c.overlay,e(c.query)),c.overlay=b(c.query,e(c.query)),a.addOverlay(c.overlay),a.showMatchesOnScrollbar&&(c.annotate&&(c.annotate.clear(),c.annotate=null),c.annotate=a.showMatchesOnScrollbar(c.query,e(c.query)))}function n(b,c,e){var f=d(b);if(f.query)return o(b,c);var i=b.getSelection()||f.lastQuery;e&&b.openDialog?g(b,l,i,function(c,d){a.e_stop(d),c&&(c!=f.queryText&&m(b,f,c),o(b,d.shiftKey))}):h(b,l,"Search for:",i,function(a){a&&!f.query&&b.operation(function(){m(b,f,a),f.posFrom=f.posTo=b.getCursor(),o(b,c)})})}function o(b,c){b.operation(function(){var e=d(b),g=f(b,e.query,c?e.posFrom:e.posTo);(g.find(c)||(g=f(b,e.query,c?a.Pos(b.lastLine()):a.Pos(b.firstLine(),0)),g.find(c)))&&(b.setSelection(g.from(),g.to()),b.scrollIntoView({from:g.from(),to:g.to()},20),e.posFrom=g.from(),e.posTo=g.to())})}function p(a){a.operation(function(){var b=d(a);b.lastQuery=b.query,b.query&&(b.query=b.queryText=null,a.removeOverlay(b.overlay),b.annotate&&(b.annotate.clear(),b.annotate=null))})}function t(a,b){if(!a.getOption("readOnly")){var c=a.getSelection()||d(a).lastQuery;h(a,q,"Replace:",c,function(c){c&&(c=k(c),h(a,r,"Replace with:","",function(d){if(d=j(d),b)a.operation(function(){for(var b=f(a,c);b.findNext();)if("string"!=typeof c){var e=a.getRange(b.from(),b.to()).match(c);b.replace(d.replace(/\$(\d)/g,function(a,b){return e[b]}))}else b.replace(d)});else{p(a);var e=f(a,c,a.getCursor()),g=function(){var d,b=e.from();!(d=e.findNext())&&(e=f(a,c),!(d=e.findNext())||b&&e.from().line==b.line&&e.from().ch==b.ch)||(a.setSelection(e.from(),e.to()),a.scrollIntoView({from:e.from(),to:e.to()}),i(a,s,"Replace?",[function(){h(d)},g]))},h=function(a){e.replace("string"==typeof c?d:d.replace(/\$(\d)/g,function(b,c){return a[c]})),g()};g()}}))})}}var l='Search: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>',q='Replace: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>',r='With: <input type="text" style="width: 10em" class="CodeMirror-search-field"/>',s="Replace? <button>Yes</button> <button>No</button> <button>Stop</button>";a.commands.find=function(a){p(a),n(a)},a.commands.findPersistent=function(a){p(a),n(a,!1,!0)},a.commands.findNext=n,a.commands.findPrev=function(a){n(a,!0)},a.commands.clearSearch=p,a.commands.replace=t,a.commands.replaceAll=function(a){t(a,!0)}}),function(a){"object"==typeof exports&&"object"==typeof module?a(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],a):a(CodeMirror)}(function(a){"use strict";function c(a,b){return a.line-b.line||a.ch-b.ch}function g(a,b,c,d){this.line=b,this.ch=c,this.cm=a,this.text=a.getLine(b),this.min=d?d.from:a.firstLine(),this.max=d?d.to-1:a.lastLine()}function h(a,c){var d=a.cm.getTokenTypeAt(b(a.line,c));return d&&/\btag\b/.test(d)}function i(a){return a.line>=a.max?void 0:(a.ch=0,a.text=a.cm.getLine(++a.line),!0)}function j(a){return a.line<=a.min?void 0:(a.text=a.cm.getLine(--a.line),a.ch=a.text.length,!0)}function k(a){for(;;){var b=a.text.indexOf(">",a.ch);if(-1==b){if(i(a))continue;return}{if(h(a,b+1)){var c=a.text.lastIndexOf("/",b),d=c>-1&&!/\S/.test(a.text.slice(c+1,b));return a.ch=b+1,d?"selfClose":"regular"}a.ch=b+1}}}function l(a){for(;;){var b=a.ch?a.text.lastIndexOf("<",a.ch-1):-1;if(-1==b){if(j(a))continue;return}if(h(a,b+1)){f.lastIndex=b,a.ch=b;var c=f.exec(a.text);if(c&&c.index==b)return c}else a.ch=b}}function m(a){for(;;){f.lastIndex=a.ch;var b=f.exec(a.text);if(!b){if(i(a))continue;return}{if(h(a,b.index+1))return a.ch=b.index+b[0].length,b;a.ch=b.index+1}}}function n(a){for(;;){var b=a.ch?a.text.lastIndexOf(">",a.ch-1):-1;if(-1==b){if(j(a))continue;return}{if(h(a,b+1)){var c=a.text.lastIndexOf("/",b),d=c>-1&&!/\S/.test(a.text.slice(c+1,b));return a.ch=b+1,d?"selfClose":"regular"}a.ch=b}}}function o(a,c){for(var d=[];;){var f,e=m(a),g=a.line,h=a.ch-(e?e[0].length:0);if(!e||!(f=k(a)))return;if("selfClose"!=f)if(e[1]){for(var i=d.length-1;i>=0;--i)if(d[i]==e[2]){d.length=i;break}if(0>i&&(!c||c==e[2]))return{tag:e[2],from:b(g,h),to:b(a.line,a.ch)}}else d.push(e[2])}}function p(a,c){for(var d=[];;){var e=n(a);if(!e)return;if("selfClose"!=e){var f=a.line,g=a.ch,h=l(a);if(!h)return;if(h[1])d.push(h[2]);else{for(var i=d.length-1;i>=0;--i)if(d[i]==h[2]){d.length=i;break}if(0>i&&(!c||c==h[2]))return{tag:h[2],from:b(a.line,a.ch),to:b(f,g)}}}else l(a)}}var b=a.Pos,d="A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD",e=d+"-:.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040",f=new RegExp("<(/?)(["+d+"]["+e+"]*)","g");a.registerHelper("fold","xml",function(a,c){for(var d=new g(a,c.line,0);;){var f,e=m(d);if(!e||d.line!=c.line||!(f=k(d)))return;if(!e[1]&&"selfClose"!=f){var c=b(d.line,d.ch),h=o(d,e[2]);return h&&{from:c,to:h.from}}}}),a.findMatchingTag=function(a,d,e){var f=new g(a,d.line,d.ch,e);if(-1!=f.text.indexOf(">")||-1!=f.text.indexOf("<")){var h=k(f),i=h&&b(f.line,f.ch),j=h&&l(f);if(h&&j&&!(c(f,d)>0)){var m={from:b(f.line,f.ch),to:i,tag:j[2]};return"selfClose"==h?{open:m,close:null,at:"open"}:j[1]?{open:p(f,j[2]),close:m,at:"close"}:(f=new g(a,i.line,i.ch,e),{open:m,close:o(f,j[2]),at:"open"})}}},a.findEnclosingTag=function(a,b,c){for(var d=new g(a,b.line,b.ch,c);;){var e=p(d);if(!e)break;var f=new g(a,b.line,b.ch,c),h=o(f,e.tag);if(h)return{open:e,close:h}}},a.scanForClosingTag=function(a,b,c,d){var e=new g(a,b.line,b.ch,d?{from:0,to:d}:null);return o(e,c)}});
\ No newline at end of file
diff --git a/htdocs/Libs/Codemirror/codemirror.orig.css b/htdocs/Libs/Codemirror/codemirror.orig.css
new file mode 100644
index 0000000..f1aa66d
--- /dev/null
+++ b/htdocs/Libs/Codemirror/codemirror.orig.css
@@ -0,0 +1,368 @@
+/* BASICS */
+
+.CodeMirror {
+  /* Set height, width, borders, and global font properties here */
+  font-family: monospace;
+  height: 300px;
+  color: black;
+  direction: ltr;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+  padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre.CodeMirror-line,
+.CodeMirror pre.CodeMirror-line-like {
+  padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+  background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+  border-right: 1px solid #ddd;
+  background-color: #f7f7f7;
+  white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+  padding: 0 3px 0 5px;
+  min-width: 20px;
+  text-align: right;
+  color: #999;
+  white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+  border-left: 1px solid black;
+  border-right: none;
+  width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+  border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+  width: auto;
+  border: 0 !important;
+  background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+  z-index: 1;
+}
+.cm-fat-cursor-mark {
+  background-color: rgba(20, 255, 20, 0.5);
+  -webkit-animation: blink 1.06s steps(1) infinite;
+  -moz-animation: blink 1.06s steps(1) infinite;
+  animation: blink 1.06s steps(1) infinite;
+}
+.cm-animate-fat-cursor {
+  width: auto;
+  border: 0;
+  -webkit-animation: blink 1.06s steps(1) infinite;
+  -moz-animation: blink 1.06s steps(1) infinite;
+  animation: blink 1.06s steps(1) infinite;
+  background-color: #7e7;
+}
+@-moz-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@-webkit-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror-rulers {
+  position: absolute;
+  left: 0; right: 0; top: -50px; bottom: 0;
+  overflow: hidden;
+}
+.CodeMirror-ruler {
+  border-left: 1px solid #ccc;
+  top: 0; bottom: 0;
+  position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+   the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+  position: relative;
+  overflow: hidden;
+  background: white;
+}
+
+.CodeMirror-scroll {
+  overflow: scroll !important; /* Things will break if this is overridden */
+  /* 50px is the magic margin used to hide the element's real scrollbars */
+  /* See overflow: hidden in .CodeMirror */
+  margin-bottom: -50px; margin-right: -50px;
+  padding-bottom: 50px;
+  height: 100%;
+  outline: none; /* Prevent dragging from highlighting the element */
+  position: relative;
+}
+.CodeMirror-sizer {
+  position: relative;
+  border-right: 50px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+   before actual scrolling happens, thus preventing shaking and
+   flickering artifacts. */
+.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+  position: absolute;
+  z-index: 6;
+  display: none;
+  outline: none;
+}
+.CodeMirror-vscrollbar {
+  right: 0; top: 0;
+  overflow-x: hidden;
+  overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+  bottom: 0; left: 0;
+  overflow-y: hidden;
+  overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+  right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+  left: 0; bottom: 0;
+}
+
+.CodeMirror-gutters {
+  position: absolute; left: 0; top: 0;
+  min-height: 100%;
+  z-index: 3;
+}
+.CodeMirror-gutter {
+  white-space: normal;
+  height: 100%;
+  display: inline-block;
+  vertical-align: top;
+  margin-bottom: -50px;
+}
+.CodeMirror-gutter-wrapper {
+  position: absolute;
+  z-index: 4;
+  background: none !important;
+  border: none !important;
+}
+.CodeMirror-gutter-background {
+  position: absolute;
+  top: 0; bottom: 0;
+  z-index: 4;
+}
+.CodeMirror-gutter-elt {
+  position: absolute;
+  cursor: default;
+  z-index: 4;
+}
+.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
+.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
+
+.CodeMirror-lines {
+  cursor: text;
+  min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre.CodeMirror-line,
+.CodeMirror pre.CodeMirror-line-like {
+  /* Reset some styles that the rest of the page might have set */
+  -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+  border-width: 0;
+  background: transparent;
+  font-family: inherit;
+  font-size: inherit;
+  margin: 0;
+  white-space: pre;
+  word-wrap: normal;
+  line-height: inherit;
+  color: inherit;
+  z-index: 2;
+  position: relative;
+  overflow: visible;
+  -webkit-tap-highlight-color: transparent;
+  -webkit-font-variant-ligatures: contextual;
+  font-variant-ligatures: contextual;
+}
+.CodeMirror-wrap pre.CodeMirror-line,
+.CodeMirror-wrap pre.CodeMirror-line-like {
+  word-wrap: break-word;
+  white-space: pre-wrap;
+  word-break: normal;
+}
+
+.CodeMirror-linebackground {
+  position: absolute;
+  left: 0; right: 0; top: 0; bottom: 0;
+  z-index: 0;
+}
+
+.CodeMirror-linewidget {
+  position: relative;
+  z-index: 2;
+  padding: 0.1px; /* Force widget margins to stay inside of the container */
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-rtl pre { direction: rtl; }
+
+.CodeMirror-code {
+  outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+  position: absolute;
+  width: 100%;
+  height: 0;
+  overflow: hidden;
+  visibility: hidden;
+}
+
+.CodeMirror-cursor {
+  position: absolute;
+  pointer-events: none;
+}
+.CodeMirror-measure pre { position: static; }
+
+div.CodeMirror-cursors {
+  visibility: hidden;
+  position: relative;
+  z-index: 3;
+}
+div.CodeMirror-dragcursors {
+  visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+  visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+  background-color: #ffa;
+  background-color: rgba(255, 255, 0, .4);
+}
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+  /* Hide the cursor when printing */
+  .CodeMirror div.CodeMirror-cursors {
+    visibility: hidden;
+  }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }
+
+.CodeMirror-foldmarker {    
+  font-family: arial;
+}
+.CodeMirror-foldgutter {
+  width: .7em;
+}
+.CodeMirror-foldgutter-open,
+.CodeMirror-foldgutter-folded {
+  color: #555;
+  cursor: pointer;
+}
+.CodeMirror-foldgutter-open:after {
+  content: "\25BE";
+}
+.CodeMirror-foldgutter-folded:after {
+  content: "\25B8";
+}
diff --git a/htdocs/Libs/Codemirror/foldcode.js b/htdocs/Libs/Codemirror/foldcode.js
new file mode 100644
index 0000000..887df3f
--- /dev/null
+++ b/htdocs/Libs/Codemirror/foldcode.js
@@ -0,0 +1,157 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function doFold(cm, pos, options, force) {
+    if (options && options.call) {
+      var finder = options;
+      options = null;
+    } else {
+      var finder = getOption(cm, options, "rangeFinder");
+    }
+    if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
+    var minSize = getOption(cm, options, "minFoldSize");
+
+    function getRange(allowFolded) {
+      var range = finder(cm, pos);
+      if (!range || range.to.line - range.from.line < minSize) return null;
+      var marks = cm.findMarksAt(range.from);
+      for (var i = 0; i < marks.length; ++i) {
+        if (marks[i].__isFold && force !== "fold") {
+          if (!allowFolded) return null;
+          range.cleared = true;
+          marks[i].clear();
+        }
+      }
+      return range;
+    }
+
+    var range = getRange(true);
+    if (getOption(cm, options, "scanUp")) while (!range && pos.line > cm.firstLine()) {
+      pos = CodeMirror.Pos(pos.line - 1, 0);
+      range = getRange(false);
+    }
+    if (!range || range.cleared || force === "unfold") return;
+
+    var myWidget = makeWidget(cm, options, range);
+    CodeMirror.on(myWidget, "mousedown", function(e) {
+      myRange.clear();
+      CodeMirror.e_preventDefault(e);
+    });
+    var myRange = cm.markText(range.from, range.to, {
+      replacedWith: myWidget,
+      clearOnEnter: getOption(cm, options, "clearOnEnter"),
+      __isFold: true
+    });
+    myRange.on("clear", function(from, to) {
+      CodeMirror.signal(cm, "unfold", cm, from, to);
+    });
+    CodeMirror.signal(cm, "fold", cm, range.from, range.to);
+  }
+
+  function makeWidget(cm, options, range) {
+    var widget = getOption(cm, options, "widget");
+
+    if (typeof widget == "function") {
+      widget = widget(range.from, range.to);
+    }
+
+    if (typeof widget == "string") {
+      var text = document.createTextNode(widget);
+      widget = document.createElement("span");
+      widget.appendChild(text);
+      widget.className = "CodeMirror-foldmarker";
+    } else if (widget) {
+      widget = widget.cloneNode(true)
+    }
+    return widget;
+  }
+
+  // Clumsy backwards-compatible interface
+  CodeMirror.newFoldFunction = function(rangeFinder, widget) {
+    return function(cm, pos) { doFold(cm, pos, {rangeFinder: rangeFinder, widget: widget}); };
+  };
+
+  // New-style interface
+  CodeMirror.defineExtension("foldCode", function(pos, options, force) {
+    doFold(this, pos, options, force);
+  });
+
+  CodeMirror.defineExtension("isFolded", function(pos) {
+    var marks = this.findMarksAt(pos);
+    for (var i = 0; i < marks.length; ++i)
+      if (marks[i].__isFold) return true;
+  });
+
+  CodeMirror.commands.toggleFold = function(cm) {
+    cm.foldCode(cm.getCursor());
+  };
+  CodeMirror.commands.fold = function(cm) {
+    cm.foldCode(cm.getCursor(), null, "fold");
+  };
+  CodeMirror.commands.unfold = function(cm) {
+    cm.foldCode(cm.getCursor(), null, "unfold");
+  };
+  CodeMirror.commands.foldAll = function(cm) {
+    cm.operation(function() {
+      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
+        cm.foldCode(CodeMirror.Pos(i, 0), null, "fold");
+    });
+  };
+  CodeMirror.commands.unfoldAll = function(cm) {
+    cm.operation(function() {
+      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
+        cm.foldCode(CodeMirror.Pos(i, 0), null, "unfold");
+    });
+  };
+
+  CodeMirror.registerHelper("fold", "combine", function() {
+    var funcs = Array.prototype.slice.call(arguments, 0);
+    return function(cm, start) {
+      for (var i = 0; i < funcs.length; ++i) {
+        var found = funcs[i](cm, start);
+        if (found) return found;
+      }
+    };
+  });
+
+  CodeMirror.registerHelper("fold", "auto", function(cm, start) {
+    var helpers = cm.getHelpers(start, "fold");
+    for (var i = 0; i < helpers.length; i++) {
+      var cur = helpers[i](cm, start);
+      if (cur) return cur;
+    }
+  });
+
+  var defaultOptions = {
+    rangeFinder: CodeMirror.fold.auto,
+    widget: "\u2194",
+    minFoldSize: 0,
+    scanUp: false,
+    clearOnEnter: true
+  };
+
+  CodeMirror.defineOption("foldOptions", null);
+
+  function getOption(cm, options, name) {
+    if (options && options[name] !== undefined)
+      return options[name];
+    var editorOptions = cm.options.foldOptions;
+    if (editorOptions && editorOptions[name] !== undefined)
+      return editorOptions[name];
+    return defaultOptions[name];
+  }
+
+  CodeMirror.defineExtension("foldOption", function(options, name) {
+    return getOption(this, options, name);
+  });
+});
diff --git a/htdocs/Libs/Codemirror/foldgutter.js b/htdocs/Libs/Codemirror/foldgutter.js
new file mode 100644
index 0000000..7d46a60
--- /dev/null
+++ b/htdocs/Libs/Codemirror/foldgutter.js
@@ -0,0 +1,163 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./foldcode"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./foldcode"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("foldGutter", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.clearGutter(cm.state.foldGutter.options.gutter);
+      cm.state.foldGutter = null;
+      cm.off("gutterClick", onGutterClick);
+      cm.off("changes", onChange);
+      cm.off("viewportChange", onViewportChange);
+      cm.off("fold", onFold);
+      cm.off("unfold", onFold);
+      cm.off("swapDoc", onChange);
+    }
+    if (val) {
+      cm.state.foldGutter = new State(parseOptions(val));
+      updateInViewport(cm);
+      cm.on("gutterClick", onGutterClick);
+      cm.on("changes", onChange);
+      cm.on("viewportChange", onViewportChange);
+      cm.on("fold", onFold);
+      cm.on("unfold", onFold);
+      cm.on("swapDoc", onChange);
+    }
+  });
+
+  var Pos = CodeMirror.Pos;
+
+  function State(options) {
+    this.options = options;
+    this.from = this.to = 0;
+  }
+
+  function parseOptions(opts) {
+    if (opts === true) opts = {};
+    if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter";
+    if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open";
+    if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded";
+    return opts;
+  }
+
+  function isFolded(cm, line) {
+    var marks = cm.findMarks(Pos(line, 0), Pos(line + 1, 0));
+    for (var i = 0; i < marks.length; ++i) {
+      if (marks[i].__isFold) {
+        var fromPos = marks[i].find(-1);
+        if (fromPos && fromPos.line === line)
+          return marks[i];
+      }
+    }
+  }
+
+  function marker(spec) {
+    if (typeof spec == "string") {
+      var elt = document.createElement("div");
+      elt.className = spec + " CodeMirror-guttermarker-subtle";
+      return elt;
+    } else {
+      return spec.cloneNode(true);
+    }
+  }
+
+  function updateFoldInfo(cm, from, to) {
+    var opts = cm.state.foldGutter.options, cur = from - 1;
+    var minSize = cm.foldOption(opts, "minFoldSize");
+    var func = cm.foldOption(opts, "rangeFinder");
+    // we can reuse the built-in indicator element if its className matches the new state
+    var clsFolded = typeof opts.indicatorFolded == "string" && classTest(opts.indicatorFolded);
+    var clsOpen = typeof opts.indicatorOpen == "string" && classTest(opts.indicatorOpen);
+    cm.eachLine(from, to, function(line) {
+      ++cur;
+      var mark = null;
+      var old = line.gutterMarkers;
+      if (old) old = old[opts.gutter];
+      if (isFolded(cm, cur)) {
+        if (clsFolded && old && clsFolded.test(old.className)) return;
+        mark = marker(opts.indicatorFolded);
+      } else {
+        var pos = Pos(cur, 0);
+        var range = func && func(cm, pos);
+        if (range && range.to.line - range.from.line >= minSize) {
+          if (clsOpen && old && clsOpen.test(old.className)) return;
+          mark = marker(opts.indicatorOpen);
+        }
+      }
+      if (!mark && !old) return;
+      cm.setGutterMarker(line, opts.gutter, mark);
+    });
+  }
+
+  // copied from CodeMirror/src/util/dom.js
+  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+  function updateInViewport(cm) {
+    var vp = cm.getViewport(), state = cm.state.foldGutter;
+    if (!state) return;
+    cm.operation(function() {
+      updateFoldInfo(cm, vp.from, vp.to);
+    });
+    state.from = vp.from; state.to = vp.to;
+  }
+
+  function onGutterClick(cm, line, gutter) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    if (gutter != opts.gutter) return;
+    var folded = isFolded(cm, line);
+    if (folded) folded.clear();
+    else cm.foldCode(Pos(line, 0), opts);
+  }
+
+  function onChange(cm) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    state.from = state.to = 0;
+    clearTimeout(state.changeUpdate);
+    state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600);
+  }
+
+  function onViewportChange(cm) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    clearTimeout(state.changeUpdate);
+    state.changeUpdate = setTimeout(function() {
+      var vp = cm.getViewport();
+      if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) {
+        updateInViewport(cm);
+      } else {
+        cm.operation(function() {
+          if (vp.from < state.from) {
+            updateFoldInfo(cm, vp.from, state.from);
+            state.from = vp.from;
+          }
+          if (vp.to > state.to) {
+            updateFoldInfo(cm, state.to, vp.to);
+            state.to = vp.to;
+          }
+        });
+      }
+    }, opts.updateViewportTimeSpan || 400);
+  }
+
+  function onFold(cm, from) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var line = from.line;
+    if (line >= state.from && line < state.to)
+      updateFoldInfo(cm, line, line + 1);
+  }
+});
diff --git a/htdocs/Libs/Codemirror/indent-fold.js b/htdocs/Libs/Codemirror/indent-fold.js
new file mode 100644
index 0000000..0cc1126
--- /dev/null
+++ b/htdocs/Libs/Codemirror/indent-fold.js
@@ -0,0 +1,48 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function lineIndent(cm, lineNo) {
+  var text = cm.getLine(lineNo)
+  var spaceTo = text.search(/\S/)
+  if (spaceTo == -1 || /\bcomment\b/.test(cm.getTokenTypeAt(CodeMirror.Pos(lineNo, spaceTo + 1))))
+    return -1
+  return CodeMirror.countColumn(text, null, cm.getOption("tabSize"))
+}
+
+CodeMirror.registerHelper("fold", "indent", function(cm, start) {
+  var myIndent = lineIndent(cm, start.line)
+  if (myIndent < 0) return
+  var lastLineInFold = null
+
+  // Go through lines until we find a line that definitely doesn't belong in
+  // the block we're folding, or to the end.
+  for (var i = start.line + 1, end = cm.lastLine(); i <= end; ++i) {
+    var indent = lineIndent(cm, i)
+    if (indent == -1) {
+    } else if (indent > myIndent) {
+      // Lines with a greater indent are considered part of the block.
+      lastLineInFold = i;
+    } else {
+      // If this line has non-space, non-comment content, and is
+      // indented less or equal to the start line, it is the start of
+      // another block.
+      break;
+    }
+  }
+  if (lastLineInFold) return {
+    from: CodeMirror.Pos(start.line, cm.getLine(start.line).length),
+    to: CodeMirror.Pos(lastLineInFold, cm.getLine(lastLineInFold).length)
+  };
+});
+
+});
diff --git a/htdocs/Libs/Codemirror/javascript.js b/htdocs/Libs/Codemirror/javascript.js
new file mode 100644
index 0000000..63eaa24
--- /dev/null
+++ b/htdocs/Libs/Codemirror/javascript.js
@@ -0,0 +1,934 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var statementIndent = parserConfig.statementIndent;
+  var jsonldMode = parserConfig.jsonld;
+  var jsonMode = parserConfig.json || jsonldMode;
+  var isTS = parserConfig.typescript;
+  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
+
+  // Tokenizer
+
+  var keywords = function(){
+    function kw(type) {return {type: type, style: "keyword"};}
+    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d");
+    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+
+    return {
+      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+      "return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
+      "debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
+      "function": kw("function"), "catch": kw("catch"),
+      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+      "in": operator, "typeof": operator, "instanceof": operator,
+      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
+      "this": kw("this"), "class": kw("class"), "super": kw("atom"),
+      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
+      "await": C
+    };
+  }();
+
+  var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
+  var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
+
+  function readRegexp(stream) {
+    var escaped = false, next, inSet = false;
+    while ((next = stream.next()) != null) {
+      if (!escaped) {
+        if (next == "/" && !inSet) return;
+        if (next == "[") inSet = true;
+        else if (inSet && next == "]") inSet = false;
+      }
+      escaped = !escaped && next == "\\";
+    }
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (ch == "." && stream.match(/^\d[\d_]*(?:[eE][+\-]?[\d_]+)?/)) {
+      return ret("number", "number");
+    } else if (ch == "." && stream.match("..")) {
+      return ret("spread", "meta");
+    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      return ret(ch);
+    } else if (ch == "=" && stream.eat(">")) {
+      return ret("=>", "operator");
+    } else if (ch == "0" && stream.match(/^(?:x[\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) {
+      return ret("number", "number");
+    } else if (/\d/.test(ch)) {
+      stream.match(/^[\d_]*(?:n|(?:\.[\d_]*)?(?:[eE][+\-]?[\d_]+)?)?/);
+      return ret("number", "number");
+    } else if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      } else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "comment");
+      } else if (expressionAllowed(stream, state, 1)) {
+        readRegexp(stream);
+        stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
+        return ret("regexp", "string-2");
+      } else {
+        stream.eat("=");
+        return ret("operator", "operator", stream.current());
+      }
+    } else if (ch == "`") {
+      state.tokenize = tokenQuasi;
+      return tokenQuasi(stream, state);
+    } else if (ch == "#" && stream.peek() == "!") {
+      stream.skipToEnd();
+      return ret("meta", "meta");
+    } else if (ch == "#" && stream.eatWhile(wordRE)) {
+      return ret("variable", "property")
+    } else if (ch == "<" && stream.match("!--") ||
+               (ch == "-" && stream.match("->") && !/\S/.test(stream.string.slice(0, stream.start)))) {
+      stream.skipToEnd()
+      return ret("comment", "comment")
+    } else if (isOperatorChar.test(ch)) {
+      if (ch != ">" || !state.lexical || state.lexical.type != ">") {
+        if (stream.eat("=")) {
+          if (ch == "!" || ch == "=") stream.eat("=")
+        } else if (/[<>*+\-|&?]/.test(ch)) {
+          stream.eat(ch)
+          if (ch == ">") stream.eat(ch)
+        }
+      }
+      if (ch == "?" && stream.eat(".")) return ret(".")
+      return ret("operator", "operator", stream.current());
+    } else if (wordRE.test(ch)) {
+      stream.eatWhile(wordRE);
+      var word = stream.current()
+      if (state.lastType != ".") {
+        if (keywords.propertyIsEnumerable(word)) {
+          var kw = keywords[word]
+          return ret(kw.type, kw.style, word)
+        }
+        if (word == "async" && stream.match(/^(\s|\/\*([^*]|\*(?!\/))*?\*\/)*[\[\(\w]/, false))
+          return ret("async", "keyword", word)
+      }
+      return ret("variable", "variable", word)
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next;
+      if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
+        state.tokenize = tokenBase;
+        return ret("jsonld-keyword", "meta");
+      }
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) break;
+        escaped = !escaped && next == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenQuasi(stream, state) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      escaped = !escaped && next == "\\";
+    }
+    return ret("quasi", "string-2", stream.current());
+  }
+
+  var brackets = "([{}])";
+  // This is a crude lookahead trick to try and notice that we're
+  // parsing the argument patterns for a fat-arrow function before we
+  // actually hit the arrow token. It only works if the arrow is on
+  // the same line as the arguments and there's no strange noise
+  // (comments) in between. Fallback is to only notice when we hit the
+  // arrow, and not declare the arguments as locals for the arrow
+  // body.
+  function findFatArrow(stream, state) {
+    if (state.fatArrowAt) state.fatArrowAt = null;
+    var arrow = stream.string.indexOf("=>", stream.start);
+    if (arrow < 0) return;
+
+    if (isTS) { // Try to skip TypeScript return type declarations after the arguments
+      var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
+      if (m) arrow = m.index
+    }
+
+    var depth = 0, sawSomething = false;
+    for (var pos = arrow - 1; pos >= 0; --pos) {
+      var ch = stream.string.charAt(pos);
+      var bracket = brackets.indexOf(ch);
+      if (bracket >= 0 && bracket < 3) {
+        if (!depth) { ++pos; break; }
+        if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
+      } else if (bracket >= 3 && bracket < 6) {
+        ++depth;
+      } else if (wordRE.test(ch)) {
+        sawSomething = true;
+      } else if (/["'\/`]/.test(ch)) {
+        for (;; --pos) {
+          if (pos == 0) return
+          var next = stream.string.charAt(pos - 1)
+          if (next == ch && stream.string.charAt(pos - 2) != "\\") { pos--; break }
+        }
+      } else if (sawSomething && !depth) {
+        ++pos;
+        break;
+      }
+    }
+    if (sawSomething && !depth) state.fatArrowAt = pos;
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
+
+  function JSLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+    for (var cx = state.context; cx; cx = cx.prev) {
+      for (var v = cx.vars; v; v = v.next)
+        if (v.name == varname) return true;
+    }
+  }
+
+  function parseJS(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
+
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "variable-2";
+        return style;
+      }
+    }
+  }
+
+  // Combinator utils
+
+  var cx = {state: null, column: null, marked: null, cc: null};
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function inList(name, list) {
+    for (var v = list; v; v = v.next) if (v.name == name) return true
+    return false;
+  }
+  function register(varname) {
+    var state = cx.state;
+    cx.marked = "def";
+    if (state.context) {
+      if (state.lexical.info == "var" && state.context && state.context.block) {
+        // FIXME function decls are also not block scoped
+        var newContext = registerVarScoped(varname, state.context)
+        if (newContext != null) {
+          state.context = newContext
+          return
+        }
+      } else if (!inList(varname, state.localVars)) {
+        state.localVars = new Var(varname, state.localVars)
+        return
+      }
+    }
+    // Fall through means this is global
+    if (parserConfig.globalVars && !inList(varname, state.globalVars))
+      state.globalVars = new Var(varname, state.globalVars)
+  }
+  function registerVarScoped(varname, context) {
+    if (!context) {
+      return null
+    } else if (context.block) {
+      var inner = registerVarScoped(varname, context.prev)
+      if (!inner) return null
+      if (inner == context.prev) return context
+      return new Context(inner, context.vars, true)
+    } else if (inList(varname, context.vars)) {
+      return context
+    } else {
+      return new Context(context.prev, new Var(varname, context.vars), false)
+    }
+  }
+
+  function isModifier(name) {
+    return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
+  }
+
+  // Combinators
+
+  function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }
+  function Var(name, next) { this.name = name; this.next = next }
+
+  var defaultVars = new Var("this", new Var("arguments", null))
+  function pushcontext() {
+    cx.state.context = new Context(cx.state.context, cx.state.localVars, false)
+    cx.state.localVars = defaultVars
+  }
+  function pushblockcontext() {
+    cx.state.context = new Context(cx.state.context, cx.state.localVars, true)
+    cx.state.localVars = null
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars
+    cx.state.context = cx.state.context.prev
+  }
+  popcontext.lex = true
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state, indent = state.indented;
+      if (state.lexical.type == "stat") indent = state.lexical.indented;
+      else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
+        indent = outer.indented;
+      state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    function exp(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
+      else return cont(exp);
+    };
+    return exp;
+  }
+
+  function statement(type, value) {
+    if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
+    if (type == "debugger") return cont(expect(";"));
+    if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext);
+    if (type == ";") return cont();
+    if (type == "if") {
+      if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
+        cx.state.cc.pop()();
+      return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
+    }
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
+    if (type == "class" || (isTS && value == "interface")) {
+      cx.marked = "keyword"
+      return cont(pushlex("form", type == "class" ? type : value), className, poplex)
+    }
+    if (type == "variable") {
+      if (isTS && value == "declare") {
+        cx.marked = "keyword"
+        return cont(statement)
+      } else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) {
+        cx.marked = "keyword"
+        if (value == "enum") return cont(enumdef);
+        else if (value == "type") return cont(typename, expect("operator"), typeexpr, expect(";"));
+        else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
+      } else if (isTS && value == "namespace") {
+        cx.marked = "keyword"
+        return cont(pushlex("form"), expression, statement, poplex)
+      } else if (isTS && value == "abstract") {
+        cx.marked = "keyword"
+        return cont(statement)
+      } else {
+        return cont(pushlex("stat"), maybelabel);
+      }
+    }
+    if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext,
+                                      block, poplex, poplex, popcontext);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
+    if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
+    if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
+    if (type == "async") return cont(statement)
+    if (value == "@") return cont(expression, statement)
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function maybeCatchBinding(type) {
+    if (type == "(") return cont(funarg, expect(")"))
+  }
+  function expression(type, value) {
+    return expressionInner(type, value, false);
+  }
+  function expressionNoComma(type, value) {
+    return expressionInner(type, value, true);
+  }
+  function parenExpr(type) {
+    if (type != "(") return pass()
+    return cont(pushlex(")"), maybeexpression, expect(")"), poplex)
+  }
+  function expressionInner(type, value, noComma) {
+    if (cx.state.fatArrowAt == cx.stream.start) {
+      var body = noComma ? arrowBodyNoComma : arrowBody;
+      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
+      else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
+    }
+
+    var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
+    if (type == "function") return cont(functiondef, maybeop);
+    if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); }
+    if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
+    if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
+    if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
+    if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
+    if (type == "{") return contCommasep(objprop, "}", null, maybeop);
+    if (type == "quasi") return pass(quasi, maybeop);
+    if (type == "new") return cont(maybeTarget(noComma));
+    if (type == "import") return cont(expression);
+    return cont();
+  }
+  function maybeexpression(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expression);
+  }
+
+  function maybeoperatorComma(type, value) {
+    if (type == ",") return cont(maybeexpression);
+    return maybeoperatorNoComma(type, value, false);
+  }
+  function maybeoperatorNoComma(type, value, noComma) {
+    var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
+    var expr = noComma == false ? expression : expressionNoComma;
+    if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
+    if (type == "operator") {
+      if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
+      if (isTS && value == "<" && cx.stream.match(/^([^<>]|<[^<>]*>)*>\s*\(/, false))
+        return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
+      if (value == "?") return cont(expression, expect(":"), expr);
+      return cont(expr);
+    }
+    if (type == "quasi") { return pass(quasi, me); }
+    if (type == ";") return;
+    if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
+    if (type == ".") return cont(property, me);
+    if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
+    if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
+    if (type == "regexp") {
+      cx.state.lastType = cx.marked = "operator"
+      cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
+      return cont(expr)
+    }
+  }
+  function quasi(type, value) {
+    if (type != "quasi") return pass();
+    if (value.slice(value.length - 2) != "${") return cont(quasi);
+    return cont(expression, continueQuasi);
+  }
+  function continueQuasi(type) {
+    if (type == "}") {
+      cx.marked = "string-2";
+      cx.state.tokenize = tokenQuasi;
+      return cont(quasi);
+    }
+  }
+  function arrowBody(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expression);
+  }
+  function arrowBodyNoComma(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expressionNoComma);
+  }
+  function maybeTarget(noComma) {
+    return function(type) {
+      if (type == ".") return cont(noComma ? targetNoComma : target);
+      else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
+      else return pass(noComma ? expressionNoComma : expression);
+    };
+  }
+  function target(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
+  }
+  function targetNoComma(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
+  }
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperatorComma, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "property"; return cont();}
+  }
+  function objprop(type, value) {
+    if (type == "async") {
+      cx.marked = "property";
+      return cont(objprop);
+    } else if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property";
+      if (value == "get" || value == "set") return cont(getterSetter);
+      var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
+      if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
+        cx.state.fatArrowAt = cx.stream.pos + m[0].length
+      return cont(afterprop);
+    } else if (type == "number" || type == "string") {
+      cx.marked = jsonldMode ? "property" : (cx.style + " property");
+      return cont(afterprop);
+    } else if (type == "jsonld-keyword") {
+      return cont(afterprop);
+    } else if (isTS && isModifier(value)) {
+      cx.marked = "keyword"
+      return cont(objprop)
+    } else if (type == "[") {
+      return cont(expression, maybetype, expect("]"), afterprop);
+    } else if (type == "spread") {
+      return cont(expressionNoComma, afterprop);
+    } else if (value == "*") {
+      cx.marked = "keyword";
+      return cont(objprop);
+    } else if (type == ":") {
+      return pass(afterprop)
+    }
+  }
+  function getterSetter(type) {
+    if (type != "variable") return pass(afterprop);
+    cx.marked = "property";
+    return cont(functiondef);
+  }
+  function afterprop(type) {
+    if (type == ":") return cont(expressionNoComma);
+    if (type == "(") return pass(functiondef);
+  }
+  function commasep(what, end, sep) {
+    function proceed(type, value) {
+      if (sep ? sep.indexOf(type) > -1 : type == ",") {
+        var lex = cx.state.lexical;
+        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
+        return cont(function(type, value) {
+          if (type == end || value == end) return pass()
+          return pass(what)
+        }, proceed);
+      }
+      if (type == end || value == end) return cont();
+      if (sep && sep.indexOf(";") > -1) return pass(what)
+      return cont(expect(end));
+    }
+    return function(type, value) {
+      if (type == end || value == end) return cont();
+      return pass(what, proceed);
+    };
+  }
+  function contCommasep(what, end, info) {
+    for (var i = 3; i < arguments.length; i++)
+      cx.cc.push(arguments[i]);
+    return cont(pushlex(end, info), commasep(what, end), poplex);
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function maybetype(type, value) {
+    if (isTS) {
+      if (type == ":") return cont(typeexpr);
+      if (value == "?") return cont(maybetype);
+    }
+  }
+  function maybetypeOrIn(type, value) {
+    if (isTS && (type == ":" || value == "in")) return cont(typeexpr)
+  }
+  function mayberettype(type) {
+    if (isTS && type == ":") {
+      if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
+      else return cont(typeexpr)
+    }
+  }
+  function isKW(_, value) {
+    if (value == "is") {
+      cx.marked = "keyword"
+      return cont()
+    }
+  }
+  function typeexpr(type, value) {
+    if (value == "keyof" || value == "typeof" || value == "infer") {
+      cx.marked = "keyword"
+      return cont(value == "typeof" ? expressionNoComma : typeexpr)
+    }
+    if (type == "variable" || value == "void") {
+      cx.marked = "type"
+      return cont(afterType)
+    }
+    if (value == "|" || value == "&") return cont(typeexpr)
+    if (type == "string" || type == "number" || type == "atom") return cont(afterType);
+    if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
+    if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex, afterType)
+    if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType, afterType)
+    if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr)
+  }
+  function maybeReturnType(type) {
+    if (type == "=>") return cont(typeexpr)
+  }
+  function typeprop(type, value) {
+    if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property"
+      return cont(typeprop)
+    } else if (value == "?" || type == "number" || type == "string") {
+      return cont(typeprop)
+    } else if (type == ":") {
+      return cont(typeexpr)
+    } else if (type == "[") {
+      return cont(expect("variable"), maybetypeOrIn, expect("]"), typeprop)
+    } else if (type == "(") {
+      return pass(functiondecl, typeprop)
+    }
+  }
+  function typearg(type, value) {
+    if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg)
+    if (type == ":") return cont(typeexpr)
+    if (type == "spread") return cont(typearg)
+    return pass(typeexpr)
+  }
+  function afterType(type, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+    if (value == "|" || type == "." || value == "&") return cont(typeexpr)
+    if (type == "[") return cont(typeexpr, expect("]"), afterType)
+    if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) }
+    if (value == "?") return cont(typeexpr, expect(":"), typeexpr)
+  }
+  function maybeTypeArgs(_, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+  }
+  function typeparam() {
+    return pass(typeexpr, maybeTypeDefault)
+  }
+  function maybeTypeDefault(_, value) {
+    if (value == "=") return cont(typeexpr)
+  }
+  function vardef(_, value) {
+    if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)}
+    return pass(pattern, maybetype, maybeAssign, vardefCont);
+  }
+  function pattern(type, value) {
+    if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) }
+    if (type == "variable") { register(value); return cont(); }
+    if (type == "spread") return cont(pattern);
+    if (type == "[") return contCommasep(eltpattern, "]");
+    if (type == "{") return contCommasep(proppattern, "}");
+  }
+  function proppattern(type, value) {
+    if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
+      register(value);
+      return cont(maybeAssign);
+    }
+    if (type == "variable") cx.marked = "property";
+    if (type == "spread") return cont(pattern);
+    if (type == "}") return pass();
+    if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern);
+    return cont(expect(":"), pattern, maybeAssign);
+  }
+  function eltpattern() {
+    return pass(pattern, maybeAssign)
+  }
+  function maybeAssign(_type, value) {
+    if (value == "=") return cont(expressionNoComma);
+  }
+  function vardefCont(type) {
+    if (type == ",") return cont(vardef);
+  }
+  function maybeelse(type, value) {
+    if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
+  }
+  function forspec(type, value) {
+    if (value == "await") return cont(forspec);
+    if (type == "(") return cont(pushlex(")"), forspec1, poplex);
+  }
+  function forspec1(type) {
+    if (type == "var") return cont(vardef, forspec2);
+    if (type == "variable") return cont(forspec2);
+    return pass(forspec2)
+  }
+  function forspec2(type, value) {
+    if (type == ")") return cont()
+    if (type == ";") return cont(forspec2)
+    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression, forspec2) }
+    return pass(expression, forspec2)
+  }
+  function functiondef(type, value) {
+    if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
+    if (type == "variable") {register(value); return cont(functiondef);}
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
+    if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
+  }
+  function functiondecl(type, value) {
+    if (value == "*") {cx.marked = "keyword"; return cont(functiondecl);}
+    if (type == "variable") {register(value); return cont(functiondecl);}
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, popcontext);
+    if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondecl)
+  }
+  function typename(type, value) {
+    if (type == "keyword" || type == "variable") {
+      cx.marked = "type"
+      return cont(typename)
+    } else if (value == "<") {
+      return cont(pushlex(">"), commasep(typeparam, ">"), poplex)
+    }
+  }
+  function funarg(type, value) {
+    if (value == "@") cont(expression, funarg)
+    if (type == "spread") return cont(funarg);
+    if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); }
+    if (isTS && type == "this") return cont(maybetype, maybeAssign)
+    return pass(pattern, maybetype, maybeAssign);
+  }
+  function classExpression(type, value) {
+    // Class expressions may have an optional name.
+    if (type == "variable") return className(type, value);
+    return classNameAfter(type, value);
+  }
+  function className(type, value) {
+    if (type == "variable") {register(value); return cont(classNameAfter);}
+  }
+  function classNameAfter(type, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
+    if (value == "extends" || value == "implements" || (isTS && type == ",")) {
+      if (value == "implements") cx.marked = "keyword";
+      return cont(isTS ? typeexpr : expression, classNameAfter);
+    }
+    if (type == "{") return cont(pushlex("}"), classBody, poplex);
+  }
+  function classBody(type, value) {
+    if (type == "async" ||
+        (type == "variable" &&
+         (value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) &&
+         cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
+      cx.marked = "keyword";
+      return cont(classBody);
+    }
+    if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property";
+      return cont(classfield, classBody);
+    }
+    if (type == "number" || type == "string") return cont(classfield, classBody);
+    if (type == "[")
+      return cont(expression, maybetype, expect("]"), classfield, classBody)
+    if (value == "*") {
+      cx.marked = "keyword";
+      return cont(classBody);
+    }
+    if (isTS && type == "(") return pass(functiondecl, classBody)
+    if (type == ";" || type == ",") return cont(classBody);
+    if (type == "}") return cont();
+    if (value == "@") return cont(expression, classBody)
+  }
+  function classfield(type, value) {
+    if (value == "?") return cont(classfield)
+    if (type == ":") return cont(typeexpr, maybeAssign)
+    if (value == "=") return cont(expressionNoComma)
+    var context = cx.state.lexical.prev, isInterface = context && context.info == "interface"
+    return pass(isInterface ? functiondecl : functiondef)
+  }
+  function afterExport(type, value) {
+    if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
+    if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
+    if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
+    return pass(statement);
+  }
+  function exportField(type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
+    if (type == "variable") return pass(expressionNoComma, exportField);
+  }
+  function afterImport(type) {
+    if (type == "string") return cont();
+    if (type == "(") return pass(expression);
+    return pass(importSpec, maybeMoreImports, maybeFrom);
+  }
+  function importSpec(type, value) {
+    if (type == "{") return contCommasep(importSpec, "}");
+    if (type == "variable") register(value);
+    if (value == "*") cx.marked = "keyword";
+    return cont(maybeAs);
+  }
+  function maybeMoreImports(type) {
+    if (type == ",") return cont(importSpec, maybeMoreImports)
+  }
+  function maybeAs(_type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
+  }
+  function maybeFrom(_type, value) {
+    if (value == "from") { cx.marked = "keyword"; return cont(expression); }
+  }
+  function arrayLiteral(type) {
+    if (type == "]") return cont();
+    return pass(commasep(expressionNoComma, "]"));
+  }
+  function enumdef() {
+    return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex)
+  }
+  function enummember() {
+    return pass(pattern, maybeAssign);
+  }
+
+  function isContinuedStatement(state, textAfter) {
+    return state.lastType == "operator" || state.lastType == "," ||
+      isOperatorChar.test(textAfter.charAt(0)) ||
+      /[,.]/.test(textAfter.charAt(0));
+  }
+
+  function expressionAllowed(stream, state, backUp) {
+    return state.tokenize == tokenBase &&
+      /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
+      (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      var state = {
+        tokenize: tokenBase,
+        lastType: "sof",
+        cc: [],
+        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: parserConfig.localVars,
+        context: parserConfig.localVars && new Context(null, null, false),
+        indented: basecolumn || 0
+      };
+      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
+        state.globalVars = parserConfig.globalVars;
+      return state;
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+        findFatArrow(stream, state);
+      }
+      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
+      return parseJS(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize == tokenComment || state.tokenize == tokenQuasi) return CodeMirror.Pass;
+      if (state.tokenize != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
+      // Kludge to prevent 'maybelse' from blocking lexical scope pops
+      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
+        var c = state.cc[i];
+        if (c == poplex) lexical = lexical.prev;
+        else if (c != maybeelse) break;
+      }
+      while ((lexical.type == "stat" || lexical.type == "form") &&
+             (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
+                                   (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
+                                   !/^[,\.=+\-*:?[\(]/.test(textAfter))))
+        lexical = lexical.prev;
+      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
+        lexical = lexical.prev;
+      var type = lexical.type, closing = firstChar == type;
+
+      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "form") return lexical.indented + indentUnit;
+      else if (type == "stat")
+        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
+      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
+    blockCommentStart: jsonMode ? null : "/*",
+    blockCommentEnd: jsonMode ? null : "*/",
+    blockCommentContinue: jsonMode ? null : " * ",
+    lineComment: jsonMode ? null : "//",
+    fold: "brace",
+    closeBrackets: "()[]{}''\"\"``",
+
+    helperType: jsonMode ? "json" : "javascript",
+    jsonldMode: jsonldMode,
+    jsonMode: jsonMode,
+
+    expressionAllowed: expressionAllowed,
+
+    skipExpression: function(state) {
+      var top = state.cc[state.cc.length - 1]
+      if (top == expression || top == expressionNoComma) state.cc.pop()
+    }
+  };
+});
+
+CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("text/ecmascript", "javascript");
+CodeMirror.defineMIME("application/javascript", "javascript");
+CodeMirror.defineMIME("application/x-javascript", "javascript");
+CodeMirror.defineMIME("application/ecmascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
+CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
+CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
+
+});
diff --git a/htdocs/Libs/Codemirror/match-highlighter.js b/htdocs/Libs/Codemirror/match-highlighter.js
new file mode 100644
index 0000000..3a4a7de
--- /dev/null
+++ b/htdocs/Libs/Codemirror/match-highlighter.js
@@ -0,0 +1,167 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Highlighting text that matches the selection
+//
+// Defines an option highlightSelectionMatches, which, when enabled,
+// will style strings that match the selection throughout the
+// document.
+//
+// The option can be set to true to simply enable it, or to a
+// {minChars, style, wordsOnly, showToken, delay} object to explicitly
+// configure it. minChars is the minimum amount of characters that should be
+// selected for the behavior to occur, and style is the token style to
+// apply to the matches. This will be prefixed by "cm-" to create an
+// actual CSS class name. If wordsOnly is enabled, the matches will be
+// highlighted only if the selected text is a word. showToken, when enabled,
+// will cause the current token to be highlighted when nothing is selected.
+// delay is used to specify how much time to wait, in milliseconds, before
+// highlighting the matches. If annotateScrollbar is enabled, the occurences
+// will be highlighted on the scrollbar via the matchesonscrollbar addon.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./matchesonscrollbar"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./matchesonscrollbar"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var defaults = {
+    style: "matchhighlight",
+    minChars: 2,
+    delay: 100,
+    wordsOnly: false,
+    annotateScrollbar: false,
+    showToken: false,
+    trim: true
+  }
+
+  function State(options) {
+    this.options = {}
+    for (var name in defaults)
+      this.options[name] = (options && options.hasOwnProperty(name) ? options : defaults)[name]
+    this.overlay = this.timeout = null;
+    this.matchesonscroll = null;
+    this.active = false;
+  }
+
+  CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      removeOverlay(cm);
+      clearTimeout(cm.state.matchHighlighter.timeout);
+      cm.state.matchHighlighter = null;
+      cm.off("cursorActivity", cursorActivity);
+      cm.off("focus", onFocus)
+    }
+    if (val) {
+      var state = cm.state.matchHighlighter = new State(val);
+      if (cm.hasFocus()) {
+        state.active = true
+        highlightMatches(cm)
+      } else {
+        cm.on("focus", onFocus)
+      }
+      cm.on("cursorActivity", cursorActivity);
+    }
+  });
+
+  function cursorActivity(cm) {
+    var state = cm.state.matchHighlighter;
+    if (state.active || cm.hasFocus()) scheduleHighlight(cm, state)
+  }
+
+  function onFocus(cm) {
+    var state = cm.state.matchHighlighter
+    if (!state.active) {
+      state.active = true
+      scheduleHighlight(cm, state)
+    }
+  }
+
+  function scheduleHighlight(cm, state) {
+    clearTimeout(state.timeout);
+    state.timeout = setTimeout(function() {highlightMatches(cm);}, state.options.delay);
+  }
+
+  function addOverlay(cm, query, hasBoundary, style) {
+    var state = cm.state.matchHighlighter;
+    cm.addOverlay(state.overlay = makeOverlay(query, hasBoundary, style));
+    if (state.options.annotateScrollbar && cm.showMatchesOnScrollbar) {
+      var searchFor = hasBoundary ? new RegExp((/\w/.test(query.charAt(0)) ? "\\b" : "") +
+                                               query.replace(/[\\\[.+*?(){|^$]/g, "\\$&") +
+                                               (/\w/.test(query.charAt(query.length - 1)) ? "\\b" : "")) : query;
+      state.matchesonscroll = cm.showMatchesOnScrollbar(searchFor, false,
+        {className: "CodeMirror-selection-highlight-scrollbar"});
+    }
+  }
+
+  function removeOverlay(cm) {
+    var state = cm.state.matchHighlighter;
+    if (state.overlay) {
+      cm.removeOverlay(state.overlay);
+      state.overlay = null;
+      if (state.matchesonscroll) {
+        state.matchesonscroll.clear();
+        state.matchesonscroll = null;
+      }
+    }
+  }
+
+  function highlightMatches(cm) {
+    cm.operation(function() {
+      var state = cm.state.matchHighlighter;
+      removeOverlay(cm);
+      if (!cm.somethingSelected() && state.options.showToken) {
+        var re = state.options.showToken === true ? /[\w$]/ : state.options.showToken;
+        var cur = cm.getCursor(), line = cm.getLine(cur.line), start = cur.ch, end = start;
+        while (start && re.test(line.charAt(start - 1))) --start;
+        while (end < line.length && re.test(line.charAt(end))) ++end;
+        if (start < end)
+          addOverlay(cm, line.slice(start, end), re, state.options.style);
+        return;
+      }
+      var from = cm.getCursor("from"), to = cm.getCursor("to");
+      if (from.line != to.line) return;
+      if (state.options.wordsOnly && !isWord(cm, from, to)) return;
+      var selection = cm.getRange(from, to)
+      if (state.options.trim) selection = selection.replace(/^\s+|\s+$/g, "")
+      if (selection.length >= state.options.minChars)
+        addOverlay(cm, selection, false, state.options.style);
+    });
+  }
+
+  function isWord(cm, from, to) {
+    var str = cm.getRange(from, to);
+    if (str.match(/^\w+$/) !== null) {
+        if (from.ch > 0) {
+            var pos = {line: from.line, ch: from.ch - 1};
+            var chr = cm.getRange(pos, from);
+            if (chr.match(/\W/) === null) return false;
+        }
+        if (to.ch < cm.getLine(from.line).length) {
+            var pos = {line: to.line, ch: to.ch + 1};
+            var chr = cm.getRange(to, pos);
+            if (chr.match(/\W/) === null) return false;
+        }
+        return true;
+    } else return false;
+  }
+
+  function boundariesAround(stream, re) {
+    return (!stream.start || !re.test(stream.string.charAt(stream.start - 1))) &&
+      (stream.pos == stream.string.length || !re.test(stream.string.charAt(stream.pos)));
+  }
+
+  function makeOverlay(query, hasBoundary, style) {
+    return {token: function(stream) {
+      if (stream.match(query) &&
+          (!hasBoundary || boundariesAround(stream, hasBoundary)))
+        return style;
+      stream.next();
+      stream.skipTo(query.charAt(0)) || stream.skipToEnd();
+    }};
+  }
+});
diff --git a/htdocs/Libs/Codemirror/matchbrackets.js b/htdocs/Libs/Codemirror/matchbrackets.js
new file mode 100644
index 0000000..2c47e07
--- /dev/null
+++ b/htdocs/Libs/Codemirror/matchbrackets.js
@@ -0,0 +1,158 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
+    (document.documentMode == null || document.documentMode < 8);
+
+  var Pos = CodeMirror.Pos;
+
+  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"};
+
+  function bracketRegex(config) {
+    return config && config.bracketRegex || /[(){}[\]]/
+  }
+
+  function findMatchingBracket(cm, where, config) {
+    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
+    var afterCursor = config && config.afterCursor
+    if (afterCursor == null)
+      afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
+    var re = bracketRegex(config)
+
+    // A cursor is defined as between two characters, but in in vim command mode
+    // (i.e. not insert mode), the cursor is visually represented as a
+    // highlighted box on top of the 2nd character. Otherwise, we allow matches
+    // from before or after the cursor.
+    var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) ||
+        re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)];
+    if (!match) return null;
+    var dir = match.charAt(1) == ">" ? 1 : -1;
+    if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
+    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
+
+    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
+    if (found == null) return null;
+    return {from: Pos(where.line, pos), to: found && found.pos,
+            match: found && found.ch == match.charAt(0), forward: dir > 0};
+  }
+
+  // bracketRegex is used to specify which type of bracket to scan
+  // should be a regexp, e.g. /[[\]]/
+  //
+  // Note: If "where" is on an open bracket, then this bracket is ignored.
+  //
+  // Returns false when no bracket was found, null when it reached
+  // maxScanLines and gave up
+  function scanForBracket(cm, where, dir, style, config) {
+    var maxScanLen = (config && config.maxScanLineLength) || 10000;
+    var maxScanLines = (config && config.maxScanLines) || 1000;
+
+    var stack = [];
+    var re = bracketRegex(config)
+    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
+                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
+    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
+      var line = cm.getLine(lineNo);
+      if (!line) continue;
+      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
+      if (line.length > maxScanLen) continue;
+      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
+      for (; pos != end; pos += dir) {
+        var ch = line.charAt(pos);
+        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
+          var match = matching[ch];
+          if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
+          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
+          else stack.pop();
+        }
+      }
+    }
+    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
+  }
+
+  function matchBrackets(cm, autoclear, config) {
+    // Disable brace matching in long lines, since it'll cause hugely slow updates
+    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
+    var marks = [], ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);
+      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
+        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
+        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
+          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
+      }
+    }
+
+    if (marks.length) {
+      // Kludge to work around the IE bug from issue #1193, where text
+      // input stops going to the textare whever this fires.
+      if (ie_lt8 && cm.state.focused) cm.focus();
+
+      var clear = function() {
+        cm.operation(function() {
+          for (var i = 0; i < marks.length; i++) marks[i].clear();
+        });
+      };
+      if (autoclear) setTimeout(clear, 800);
+      else return clear;
+    }
+  }
+
+  function doMatchBrackets(cm) {
+    cm.operation(function() {
+      if (cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+      cm.state.matchBrackets.currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
+    });
+  }
+
+  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
+    function clear(cm) {
+      if (cm.state.matchBrackets && cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+    }
+
+    if (old && old != CodeMirror.Init) {
+      cm.off("cursorActivity", doMatchBrackets);
+      cm.off("focus", doMatchBrackets)
+      cm.off("blur", clear)
+      clear(cm);
+    }
+    if (val) {
+      cm.state.matchBrackets = typeof val == "object" ? val : {};
+      cm.on("cursorActivity", doMatchBrackets);
+      cm.on("focus", doMatchBrackets)
+      cm.on("blur", clear)
+    }
+  });
+
+  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
+  CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){
+    // Backwards-compatibility kludge
+    if (oldConfig || typeof config == "boolean") {
+      if (!oldConfig) {
+        config = config ? {strict: true} : null
+      } else {
+        oldConfig.strict = config
+        config = oldConfig
+      }
+    }
+    return findMatchingBracket(this, pos, config)
+  });
+  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
+    return scanForBracket(this, pos, dir, style, config);
+  });
+});
diff --git a/htdocs/Libs/Codemirror/matchtags.js b/htdocs/Libs/Codemirror/matchtags.js
new file mode 100644
index 0000000..2203d93
--- /dev/null
+++ b/htdocs/Libs/Codemirror/matchtags.js
@@ -0,0 +1,66 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../fold/xml-fold"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("matchTags", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.off("cursorActivity", doMatchTags);
+      cm.off("viewportChange", maybeUpdateMatch);
+      clear(cm);
+    }
+    if (val) {
+      cm.state.matchBothTags = typeof val == "object" && val.bothTags;
+      cm.on("cursorActivity", doMatchTags);
+      cm.on("viewportChange", maybeUpdateMatch);
+      doMatchTags(cm);
+    }
+  });
+
+  function clear(cm) {
+    if (cm.state.tagHit) cm.state.tagHit.clear();
+    if (cm.state.tagOther) cm.state.tagOther.clear();
+    cm.state.tagHit = cm.state.tagOther = null;
+  }
+
+  function doMatchTags(cm) {
+    cm.state.failedTagMatch = false;
+    cm.operation(function() {
+      clear(cm);
+      if (cm.somethingSelected()) return;
+      var cur = cm.getCursor(), range = cm.getViewport();
+      range.from = Math.min(range.from, cur.line); range.to = Math.max(cur.line + 1, range.to);
+      var match = CodeMirror.findMatchingTag(cm, cur, range);
+      if (!match) return;
+      if (cm.state.matchBothTags) {
+        var hit = match.at == "open" ? match.open : match.close;
+        if (hit) cm.state.tagHit = cm.markText(hit.from, hit.to, {className: "CodeMirror-matchingtag"});
+      }
+      var other = match.at == "close" ? match.open : match.close;
+      if (other)
+        cm.state.tagOther = cm.markText(other.from, other.to, {className: "CodeMirror-matchingtag"});
+      else
+        cm.state.failedTagMatch = true;
+    });
+  }
+
+  function maybeUpdateMatch(cm) {
+    if (cm.state.failedTagMatch) doMatchTags(cm);
+  }
+
+  CodeMirror.commands.toMatchingTag = function(cm) {
+    var found = CodeMirror.findMatchingTag(cm, cm.getCursor());
+    if (found) {
+      var other = found.at == "close" ? found.open : found.close;
+      if (other) cm.extendSelection(other.to, other.from);
+    }
+  };
+});
diff --git a/htdocs/Libs/Codemirror/version.txt b/htdocs/Libs/Codemirror/version.txt
new file mode 100644
index 0000000..f169928
--- /dev/null
+++ b/htdocs/Libs/Codemirror/version.txt
@@ -0,0 +1 @@
+5.58.3
\ No newline at end of file
diff --git a/htdocs/WebApplications/GuiEditor/Models/Model.js b/htdocs/WebApplications/GuiEditor/Models/Model.js
index f7884ef..1b446ac 100644
--- a/htdocs/WebApplications/GuiEditor/Models/Model.js
+++ b/htdocs/WebApplications/GuiEditor/Models/Model.js
@@ -10,6 +10,7 @@
     var v_setupModel = v_baseModel.getSetupModel();
     var v_framework = p_framework;
     var v_dsRestAPI;
+    var v_MetaSchema;
 
     if (v_baseModel.getAppConfig().lastEditedApp != undefined && window["DsRestAPI"] != undefined) {
         v_dsRestAPI = new DsRestAPI(p_extension);
@@ -17,6 +18,10 @@
         v_dsRestAPI = {"getHelp": function(callback) {callback(true, {"sources" : []});}};
     }
 
+    v_baseModel.getFileHandler().loadFile('Libs/AJV/json-schema-draft-04.json', function(ok, data) {
+        v_MetaSchema = JSON.parse(data);
+    });
+
     ///////////////////// SETUP HANDLING /////////////////////
 
     this.newSetup = function() {
@@ -395,6 +400,10 @@
     this.getDsRestAPI = function() {
         return v_dsRestAPI;
     };
+
+    this.getMetaSchema = function() {
+        return v_MetaSchema;
+    }
 
     this.getFileHandler = v_baseModel.getFileHandler;
 }
diff --git a/htdocs/WebApplications/GuiEditor/ViewModels/ViewModel_SanityChecker.js b/htdocs/WebApplications/GuiEditor/ViewModels/ViewModel_SanityChecker.js
index bebc980..d46a35f 100644
--- a/htdocs/WebApplications/GuiEditor/ViewModels/ViewModel_SanityChecker.js
+++ b/htdocs/WebApplications/GuiEditor/ViewModels/ViewModel_SanityChecker.js
@@ -13,6 +13,7 @@
     var v_help;
     var v_request;
     var v_cache;
+    var v_ajv_validator;
 
     var v_this = this;
 
@@ -20,6 +21,14 @@
 
     this.init = function(p_callback) {
         v_cache = {};
+
+        v_ajv_validator = new Ajv({schemaId: 'id'});
+        v_ajv_validator.addFormat('checkbox', function (value) {return true;});
+        v_ajv_validator.addFormat('tabs', function (value) {return true;});
+        v_ajv_validator.addFormat('table', function (value) {return true;});
+        var metasch = v_model.getMetaSchema();
+        v_ajv_validator.addMetaSchema(metasch);
+
         function jsImported(ok, data) {
             if (!ok) {
                 alert("Some javascript files could not be imported\n" + JSON.stringify(data, null, 4));
@@ -88,8 +97,7 @@
 
             // chack if custom data is valid
             if (window[viewClass].getCustomDataSchema != undefined && !oldff) {
-                var validate = new Ajv({}).compile(window[viewClass].getCustomDataSchema());
-                var isValid = validate(view.getCustomData());
+                var isValid = v_ajv_validator.validate(window[viewClass].getCustomDataSchema(), view.getCustomData());
                 if (!isValid) {
                     return "custom data does not match the schema";
                 }
@@ -104,8 +112,7 @@
         if (window[viewmodelClass] != undefined) {
             // chack if custom data is valid
             if (window[viewmodelClass].getCustomDataSchema != undefined && !oldff) {
-                var validate = new Ajv({}).compile(window[viewmodelClass].getCustomDataSchema());
-                var isValid = validate(viewmodel.getCustomData());
+                var isValid = v_ajv_validator.validate(window[viewmodelClass].getCustomDataSchema(), viewmodel.getCustomData());
                 if (!isValid) {
                     return "custom data does not match the schema";
                 }
diff --git a/htdocs/index.html b/htdocs/index.html
index c06d906..878429a 100644
--- a/htdocs/index.html
+++ b/htdocs/index.html
@@ -34,7 +34,16 @@
         <script src="Libs/Flot/jquery.flot.navigate.min.js"></script>
         <!-- Customized libs -->
         <script src="Libs/JSONEditor/jsoneditor.custom.js"></script>
-        <script src="Libs/Codemirror/codemirror.custom.js"></script>
+        <script src="Libs/Codemirror/codemirror.js"></script>
+        <script src="Libs/Codemirror/brace-fold.js"></script>
+        <script src="Libs/Codemirror/closebrackets.js"></script>
+        <script src="Libs/Codemirror/closetag.js"></script>
+        <script src="Libs/Codemirror/foldcode.js"></script>
+        <script src="Libs/Codemirror/foldgutter.js"></script>
+        <script src="Libs/Codemirror/indent-fold.js"></script>
+        <script src="Libs/Codemirror/javascript.js"></script>
+        <script src="Libs/Codemirror/matchbrackets.js"></script>
+        <script src="Libs/Codemirror/matchtags.js"></script>
 
         <!-- GENERAL UTILITIES -->
         <script src="Utils/Utilities.js"></script>