/*******************************************************************************
* Copyright (c) 2009 David Green 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:
* David Green - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.wikitext.tracwiki.internal.token;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElement;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElementProcessor;
import org.eclipse.mylyn.wikitext.tracwiki.TracWikiLanguage;
/**
* recognizes links to Trac changesets, eg: <code>r1</code> or <code>[1]</code> or <code>[1/trunk]</code> or
* <code>changeset:1</code> or <code>changeset:1/trunk</code>
*
* @author David Green
*/
public class ChangesetLinkReplacementToken extends PatternBasedElement {
@Override
protected String getPattern(int groupOffset) {
return "(r(\\d+))|(\\[(\\d+)(?:/(\\w+))?\\])|(changeset:(\\d+)(?:/(\\w+))?)"; //$NON-NLS-1$
}
@Override
protected int getPatternGroupCount() {
return 8;
}
@Override
protected PatternBasedElementProcessor newProcessor() {
return new ChangesetReplacementTokenProcessor();
}
private static class ChangesetReplacementTokenProcessor extends PatternBasedElementProcessor {
@Override
public void emit() {
String text = group(1);
String changesetId = group(2);
String restriction = null;
if (changesetId == null) {
text = group(3);
changesetId = group(4);
restriction = group(5);
if (changesetId == null) {
text = group(6);
changesetId = group(7);
restriction = group(8);
}
}
String href = ((TracWikiLanguage) markupLanguage).toChangesetHref(changesetId, restriction);
builder.link(href, text);
}
}
}