/*******************************************************************************
* Copyright (c) 2007, 2011 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.twiki.internal.token;
import java.util.regex.Pattern;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElement;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElementProcessor;
import org.eclipse.mylyn.wikitext.twiki.TWikiLanguage;
/**
* @author David Green
*/
public class WikiWordReplacementToken extends PatternBasedElement {
private static final Pattern replacementPattern = Pattern.compile("\\W"); //$NON-NLS-1$
@Override
protected String getPattern(int groupOffset) {
return "(!)?([A-Z]\\w+(?:[A-Z]\\w*)+)"; //$NON-NLS-1$
}
@Override
protected int getPatternGroupCount() {
return 2;
}
@Override
protected PatternBasedElementProcessor newProcessor() {
return new WikiWordProcessor();
}
private class WikiWordProcessor extends PatternBasedElementProcessor {
@Override
public void emit() {
String escaped = group(1);
String word = group(2);
TWikiLanguage twikiLanguage = (TWikiLanguage) markupLanguage;
if (escaped != null || !twikiLanguage.isAutoLinking()) {
builder.characters(word);
} else {
String target = replacementPattern.matcher(word).replaceAll(""); //$NON-NLS-1$
boolean exists = twikiLanguage.computeInternalLinkExists(target);
String internalHref = twikiLanguage.toInternalHref(target);
if (!exists) {
builder.characters(word);
builder.link(internalHref, "?"); //$NON-NLS-1$
} else {
builder.link(internalHref, word);
}
}
}
}
}