| /******************************************************************************* |
| * Copyright (c) 2000, 2007 IBM Corporation and others. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| |
| *******************************************************************************/ |
| package org.eclipse.dltk.compiler.util; |
| |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| import java.io.Writer; |
| import java.util.Arrays; |
| import java.util.Map; |
| |
| public class GenericXMLWriter extends PrintWriter { |
| /* constants */ |
| private static final String XML_VERSION = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"; //$NON-NLS-1$ |
| |
| private static void appendEscapedChar(StringBuffer buffer, char c) { |
| String replacement = getReplacement(c); |
| if (replacement != null) { |
| buffer.append('&'); |
| buffer.append(replacement); |
| buffer.append(';'); |
| } else { |
| buffer.append(c); |
| } |
| } |
| |
| private static String getEscaped(String s) { |
| StringBuffer result = new StringBuffer(s.length() + 10); |
| for (int i = 0; i < s.length(); ++i) |
| appendEscapedChar(result, s.charAt(i)); |
| return result.toString(); |
| } |
| |
| private static String getReplacement(char c) { |
| // Encode special XML characters into the equivalent character |
| // references. |
| // These five are defined by default for all XML documents. |
| switch (c) { |
| case '<': |
| return "lt"; //$NON-NLS-1$ |
| case '>': |
| return "gt"; //$NON-NLS-1$ |
| case '"': |
| return "quot"; //$NON-NLS-1$ |
| case '\'': |
| return "apos"; //$NON-NLS-1$ |
| case '&': |
| return "amp"; //$NON-NLS-1$ |
| } |
| return null; |
| } |
| |
| private int tab; |
| private String lineSeparator; |
| |
| public GenericXMLWriter(OutputStream stream, String lineSeparator, |
| boolean printXmlVersion) { |
| this(new PrintWriter(stream), lineSeparator, printXmlVersion); |
| } |
| |
| public GenericXMLWriter(Writer writer, String lineSeparator, |
| boolean printXmlVersion) { |
| super(writer); |
| this.tab = 0; |
| this.lineSeparator = lineSeparator; |
| if (printXmlVersion) { |
| print(XML_VERSION); |
| print(this.lineSeparator); |
| } |
| } |
| |
| public void endTag(String name, boolean insertTab, boolean insertNewLine) { |
| this.tab--; |
| printTag('/' + name, null/* no parameters */, insertTab, insertNewLine, |
| false/* don't close tag */); |
| } |
| |
| private void printTabulation() { |
| for (int i = 0; i < tab; i++) |
| super.print('\t'); |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| public void printTag(String name, Map<String, String> parameters, |
| boolean insertTab, boolean insertNewLine, boolean closeTag) { |
| StringBuffer sb = new StringBuffer(); |
| sb.append("<"); //$NON-NLS-1$ |
| sb.append(name); |
| if (parameters != null) { |
| int length = parameters.size(); |
| String[] keys = new String[length]; |
| parameters.keySet().toArray(keys); |
| Arrays.sort(keys); |
| for (int i = 0; i < length; i++) { |
| sb.append(" "); //$NON-NLS-1$ |
| sb.append(keys[i]); |
| sb.append("=\""); //$NON-NLS-1$ |
| sb.append(getEscaped(String.valueOf(parameters.get(keys[i])))); |
| sb.append("\""); //$NON-NLS-1$ |
| } |
| } |
| if (closeTag) { |
| sb.append("/>"); //$NON-NLS-1$ |
| } else { |
| sb.append(">"); //$NON-NLS-1$ |
| } |
| printString(sb.toString(), insertTab, insertNewLine); |
| if (parameters != null && !closeTag) |
| this.tab++; |
| |
| } |
| |
| public void printString(String string, boolean insertTab, |
| boolean insertNewLine) { |
| if (insertTab) { |
| printTabulation(); |
| } |
| print(string); |
| if (insertNewLine) { |
| print(this.lineSeparator); |
| } |
| } |
| |
| public void startTag(String name, boolean insertTab) { |
| printTag(name, null/* no parameters */, insertTab, true/* |
| * insert new |
| * line |
| */, false/* |
| * don't |
| * close |
| * tag |
| */); |
| this.tab++; |
| } |
| } |