/*******************************************************************************
* Copyright (c) 2007, 2008 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 explicit hyperlink syntax that uses '[' and ']' delimiters
*
* @author David Green
*/
public class HyperlinkReplacementToken extends PatternBasedElement {
@Override
protected String getPattern(int groupOffset) {
return "\\[\\s*(wiki:)?([^\\]\\s]+)\\s*([^\\]]+)?\\s*\\]"; //$NON-NLS-1$
}
@Override
protected int getPatternGroupCount() {
return 3;
}
@Override
protected PatternBasedElementProcessor newProcessor() {
return new HyperlinkReplacementTokenProcessor();
}
private static class HyperlinkReplacementTokenProcessor extends PatternBasedElementProcessor {
@Override
public void emit() {
String wikiUrl = group(1);
String href = group(2);
String text = group(3);
if (text == null) {
text = href;
} else {
text = text.trim();
if (text.length() == 0) {
text = href;
}
}
if (wikiUrl != null) {
href = ((TracWikiLanguage) markupLanguage).toInternalHref(href);
}
builder.link(href, text);
}
}
}