/*******************************************************************************
* 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.parser.markup.token;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElement;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElementProcessor;
/**
* A token that detects hyperlinks in the markup and emits them as a link. hyperlinks must use the HTTP or HTTPS
* protocols to be detected. Url detection is based on RFC 3986.
*
* @author David Green
* @since 3.0
*/
public class ImpliedHyperlinkReplacementToken extends PatternBasedElement {
@Override
public String getPattern(int groupOffset) {
// based on RFC 3986
// even though it's valid we don't want to detect URLs that end with '.', ',', ';', ':' or ')'
return "(https?://[a-zA-Z0-9%._~!$&?#'()*+,;:@/=-]*[a-zA-Z0-9_~!$&?#'(*+@/=-])"; //$NON-NLS-1$
}
@Override
public int getPatternGroupCount() {
return 1;
}
@Override
protected PatternBasedElementProcessor newProcessor() {
return new HyperlinkReplacementTokenProcessor();
}
private static class HyperlinkReplacementTokenProcessor extends PatternBasedElementProcessor {
@Override
public void emit() {
String target = group(1);
getBuilder().link(target, target);
}
}
}