/*
* This file is part of "SnipSnap Radeox Rendering Engine".
*
* Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
* All Rights Reserved.
*
* Please visit http://radeox.org/ for updates and contact.
*
* --LICENSE NOTICE--
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* --LICENSE NOTICE--
*/
package org.radeox.filter;
import java.text.MessageFormat;
import org.radeox.api.engine.context.InitialRenderContext;
import org.radeox.filter.context.FilterContext;
import org.radeox.filter.regex.LocaleRegexTokenFilter;
import org.radeox.regex.MatchResult;
/*
* Transforms header style lines into subsections. A header starts with a 1 for
* first level headers and 1.1 for secend level headers. Headers are numbered
* automatically @author leo @team other
*
* @version $Id: HeadingFilter.java 7707 2006-04-12 17:30:19Z
* ian@caret.cam.ac.uk $
*/
public class HeadingFilter extends LocaleRegexTokenFilter implements
CacheFilter
{
private MessageFormat formatter;
protected String getLocaleKey()
{
return "filter.heading";
}
public void handleMatch(StringBuffer buffer, MatchResult result,
FilterContext context)
{
buffer.append(handleMatch(result, context));
}
public void setInitialContext(InitialRenderContext context)
{
super.setInitialContext(context);
String outputTemplate = outputMessages.getString(getLocaleKey()
+ ".print");
formatter = new MessageFormat("");
formatter.applyPattern(outputTemplate);
}
public String handleMatch(MatchResult result, FilterContext context)
{
String name = "";
char[] nameChars = result.group(3).toCharArray();
int end = 0;
for (int i = 0; i < nameChars.length; i++)
{
if (Character.isLetterOrDigit(nameChars[i]))
{
nameChars[end++] = nameChars[i];
}
}
if (end > 0)
{
name = new String(nameChars, 0, end);
}
return formatter.format(new Object[] {
result.group(1).replace('.', '-'), result.group(3), name });
}
}