| /******************************************************************************* |
| * Copyright (c) 2008 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 |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ua.ui.editor.toc; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.nio.CharBuffer; |
| import java.nio.MappedByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.nio.charset.Charset; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class TocHTMLTitleUtil { |
| |
| private static final String whitespace = "[ \\t\\n\\r\\f\\v]*"; //$NON-NLS-1$ |
| private static final String titleTag = "[Tt][Ii][Tt][Ll][Ee]"; //$NON-NLS-1$ |
| |
| private static Pattern titlePattern = null; |
| |
| private static void initPattern() { |
| StringBuffer buf = new StringBuffer(); |
| buf.append('<'); |
| buf.append(whitespace); |
| buf.append(titleTag); |
| buf.append('>'); |
| buf.append("(.*?)"); //$NON-NLS-1$ |
| buf.append('<'); |
| buf.append(whitespace); |
| buf.append('/'); |
| buf.append(whitespace); |
| buf.append(titleTag); |
| buf.append('>'); |
| |
| titlePattern = Pattern.compile(buf.toString()); |
| } |
| |
| public static String findTitle(File f) { |
| if (titlePattern == null) { |
| initPattern(); |
| } |
| |
| try { |
| FileChannel fc = new FileInputStream(f).getChannel(); |
| |
| MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size()); |
| |
| CharBuffer cb = Charset.forName("8859_1").newDecoder().decode(bb); //$NON-NLS-1$ |
| |
| Matcher m = titlePattern.matcher(cb); |
| String title = null; |
| if (m.find()) { |
| title = m.group(1); |
| } |
| |
| return title; |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| } |