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/*******************************************************************************
* Copyright (c) 2004 - 2006 University Of British Columbia 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:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.bugzilla.ui;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.mylyn.tasks.ui.TaskHyperlink;
import org.eclipse.mylyn.tasks.ui.TasksUiPlugin;
/**
* @author Rob Elves (multiple bug/task hyperlink support)
* @author Mik Kersten
*/
public class BugzillaHyperlinkUtil {
private static final int TASK_NUM_GROUP = 3;
private static final String regexp = "(duplicate of|bug|task)(\\s#|#|#\\s|\\s|)(\\s\\d+|\\d+)";
private static final Pattern PATTERN = Pattern.compile(regexp, Pattern.CASE_INSENSITIVE);
public static IHyperlink[] findBugHyperlinks(String repositoryUrl, int offset, String comment, int lineOffset) {
ArrayList<IHyperlink> hyperlinksFound = new ArrayList<IHyperlink>();
Matcher m = PATTERN.matcher(comment);
while (m.find()) {
if (offset >= m.start() && offset <= m.end()) {
IHyperlink link = extractHyperlink(repositoryUrl, lineOffset, m);
if (link != null)
hyperlinksFound.add(link);
}
}
if (hyperlinksFound.size() > 0) {
return hyperlinksFound.toArray(new IHyperlink[1]);
}
return null;
}
private static IHyperlink extractHyperlink(String repositoryUrl, int lineOffset, Matcher m) {
int start = -1;
if(m.group().startsWith("duplicate")) {
start = m.start() + m.group().indexOf(m.group(TASK_NUM_GROUP));
} else {
start = m.start();
}
int end = m.end();
if (end == -1)
end = m.group().length();
TaskRepository repository = TasksUiPlugin.getRepositoryManager().getRepository(repositoryUrl);
try {
String bugId = m.group(TASK_NUM_GROUP).trim();
start += lineOffset;
end += lineOffset;
IRegion sregion = new Region(start, end - start);
return new TaskHyperlink(sregion, repository, bugId);
} catch (NumberFormatException e) {
return null;
}
}
}
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