| /******************************************************************************* |
| * Copyright (c) 2001, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.core.internal.provisional.format; |
| |
| import org.eclipse.wst.sse.core.internal.format.IStructuredFormatContraints; |
| import org.eclipse.wst.sse.core.utils.StringUtils; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.w3c.dom.Node; |
| |
| |
| public class CommentNodeFormatter extends NodeFormatter { |
| |
| protected String adjustIndentations(String aString, String lineIndent, String singleIndent) { |
| String result = new String(); |
| |
| int indexOfLineDelimiter = StringUtils.indexOfLineDelimiter(aString); |
| result = aString.substring(0, indexOfLineDelimiter); |
| while (indexOfLineDelimiter != -1) { |
| // Before find the next LineDelimiter, we have to figure out the |
| // size of the current LineDelimiter |
| // so we can figure out how many bytes to skip before finding the |
| // next LineDelimiter. |
| // Otherwise, we may treat the LF in CRLF as the next |
| // LineDelimiter. |
| int lineDelimiterSize = 1; |
| if (aString.length() >= indexOfLineDelimiter + 2 && aString.substring(indexOfLineDelimiter, indexOfLineDelimiter + 1).compareTo(CR) == 0 && aString.substring(indexOfLineDelimiter + 1, indexOfLineDelimiter + 2).compareTo(LF) == 0) |
| lineDelimiterSize = 2; |
| |
| int indexOfNextLineDelimiter = StringUtils.indexOfLineDelimiter(aString, indexOfLineDelimiter + lineDelimiterSize); |
| int indexOfNonblank = StringUtils.indexOfNonblank(aString, indexOfLineDelimiter); |
| |
| if (indexOfNonblank != -1) { |
| if (indexOfNextLineDelimiter == -1) { |
| // last line; copy till the end |
| result += lineIndent + singleIndent + aString.substring(indexOfNonblank); |
| } else if (indexOfNextLineDelimiter != -1 && indexOfNextLineDelimiter < indexOfNonblank) { |
| // blank line; just add a indent |
| result += lineIndent + singleIndent; |
| } else { |
| // copy all text between indexOfNonblank and |
| // indexOfNextLineDelimiter |
| result += lineIndent + singleIndent + aString.substring(indexOfNonblank, indexOfNextLineDelimiter); |
| } |
| |
| indexOfLineDelimiter = indexOfNextLineDelimiter; |
| } else { |
| if (indexOfNextLineDelimiter == -1) { |
| result += lineIndent; |
| } else { |
| // blank line; just add a indent |
| result += lineIndent + singleIndent; |
| } |
| |
| indexOfLineDelimiter = indexOfNextLineDelimiter; |
| } |
| } |
| |
| return result; |
| } |
| |
| protected void formatNode(IDOMNode node, IStructuredFormatContraints formatContraints) { |
| if (node != null) { |
| // lineDelimiterFound means multi line comment |
| String nodeValue = node.getNodeValue(); |
| boolean lineDelimiterFoundInComment = StringUtils.containsLineDelimiter(nodeValue); |
| |
| if (lineDelimiterFoundInComment) { |
| // format indentation before node |
| formatIndentationBeforeNode(node, formatContraints); |
| |
| // adjust indentations in multi line comment |
| String lineDelimiter = node.getModel().getStructuredDocument().getLineDelimiter(); |
| String lineIndent = formatContraints.getCurrentIndent(); |
| String singleIndent = getFormatPreferences().getIndent(); |
| String newNodevalue = adjustIndentations(nodeValue, lineDelimiter + lineIndent, singleIndent); |
| if (nodeValue.compareTo(newNodevalue) != 0) |
| node.setNodeValue(newNodevalue); |
| } |
| |
| if (!nodeHasSiblings(node) || (node.getPreviousSibling() != null && node.getPreviousSibling().getNodeType() == Node.TEXT_NODE && !StringUtils.containsLineDelimiter(node.getPreviousSibling().getNodeValue()) && node.getNextSibling() == null)) { |
| // single child |
| // or inline comment after text |
| // do nothing |
| } else |
| // format indentation after node |
| formatIndentationAfterNode(node, formatContraints); |
| } |
| } |
| } |