org.eclipse.mylyn.trac.ui/src/org/eclipse/mylyn/internal/trac/ui/TracHyperlinkUtil.java - mylyn/org.eclipse.mylyn.tasks - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2009 Steffen Pingel and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * https://www.eclipse.org/legal/epl-2.0
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     Steffen Pingel - initial API and implementation
  *     David Green - fix for bug 244017
  *******************************************************************************/

 package org.eclipse.mylyn.internal.trac.ui;

 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.Region;
 import org.eclipse.jface.text.hyperlink.IHyperlink;
 import org.eclipse.mylyn.commons.core.StatusHandler;
 import org.eclipse.mylyn.internal.trac.core.client.ITracClient;
 import org.eclipse.mylyn.tasks.core.TaskRepository;
 import org.eclipse.mylyn.tasks.ui.TaskHyperlink;

 /**
  * Utility class for detecting Trac hyperlinks.
  *
  * @author Steffen Pingel
  * @author David Green partial fix hyperlink detection on {{{ see bug 265682
  */
 public class TracHyperlinkUtil {

 	static Pattern ticketPattern = createPattern("(ticket:|#)(\\d+)"); //$NON-NLS-1$

 	static Pattern commentPattern = createPattern("comment:ticket:(\\d+):(\\d+)"); //$NON-NLS-1$

 	static Pattern reportPattern1 = createPattern("report:(\\d+)"); //$NON-NLS-1$

 	static Pattern reportPattern2 = Pattern.compile("(?<!!|\\{\\{)\\{(\\d+)\\}"); //$NON-NLS-1$

 	static Pattern changesetPattern1 = createPattern("(r|changeset:)(\\d+)(/\\w+)?"); //$NON-NLS-1$

 	static Pattern changesetPattern2 = createPattern("\\[(\\d+)(/\\w+)?\\]"); //$NON-NLS-1$

 	static Pattern revisionLogPattern1 = createPattern("r(\\d+):(\\d+)"); //$NON-NLS-1$

 	static Pattern revisionLogPattern2 = createPattern("\\[(\\d+):(\\d+)\\]"); //$NON-NLS-1$

 	static Pattern revisionLogPattern3 = createPattern("log:(\\w+)?@(\\d+):(\\d+)"); //$NON-NLS-1$

 	static Pattern diffPattern1 = createPattern("diff:@(\\d+):(\\d+)"); //$NON-NLS-1$

 	static Pattern diffPattern2 = createPattern("diff:([\\w\\./-]+)(@(\\d+))?//([\\w\\./-]+)(@(\\d+))?"); //$NON-NLS-1$

 	static Pattern wikiPattern1 = createPattern("wiki:(\\w+)"); //$NON-NLS-1$

 	static Pattern wikiPattern2 = Pattern.compile("(?<![!.a-zA-Z])[A-Z][a-z0-9]+[A-Z]\\w*"); //$NON-NLS-1$

 	static Pattern milestonePattern = createPattern("milestone:([\\w\\.]+)"); //$NON-NLS-1$

 	static Pattern attachmentPattern = createPattern("attachment:ticket:(\\d+):([\\w\\.]+)"); //$NON-NLS-1$

 	static Pattern filesPattern = createPattern("source:/*([\\w\\./\\-_]+)(@(\\d+)(#L(\\d+))?)?"); //$NON-NLS-1$

 	private static Pattern createPattern(String regexp) {
 		// hyperlink patterns prefixed with "!" are not links
 		return Pattern.compile("(?<!!)" + regexp); //$NON-NLS-1$
 	}

 	/**
 	 * Detects hyperlinks to Trac tickets.
 	 */
 	public static IHyperlink[] findTicketHyperlinks(TaskRepository repository, String text, int lineOffset,
 			int regionOffset) {
 		List<IHyperlink> links = null;
 		Matcher m = ticketPattern.matcher(text);
 		while (m.find()) {
 			if (isInRegion(lineOffset, m)) {
 				String id = m.group(2);
 				if (links == null) {
 					links = new ArrayList<IHyperlink>();
 				}
 				links.add(new TaskHyperlink(determineRegion(regionOffset, m), repository, id));
 			}
 		}
 		return links == null ? null : links.toArray(new IHyperlink[0]);
 	}

 	/**
 	 * Detects Trac hyperlinks.
 	 * <ul>
 	 * <li>Ticket comments: comment:ticket:1:2
 	 * <li>Reports: {1} or report:1
 	 * <li>Changesets: r1, [1], changeset:1 or (restricted) [1/trunk], changeset:1/trunk
 	 * <li>Revision log: r1:3, [1:3] or log:@1:3, log:trunk@1:3
 	 * <li>Diffs: diff:@1:3, diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default or
 	 * diff:trunk/trac@3538//sandbox/vc-refactoring@3539
 	 * <li>Wiki pages: CamelCase or wiki:CamelCase
 	 * <li>Milestones: milestone:1.0
 	 * <li>Attachment: attachment:ticket:944:attachment.1073.diff
 	 * <li>Files: source:trunk/COPYING
 	 * <li>A specific file revision: source:/trunk/COPYING@200
 	 * <li>A particular line of a specific file revision: source:/trunk/COPYING@200#L25
 	 * </ul>
 	 *
 	 * @see http://trac.edgewall.org/wiki/TracLinks
 	 */
 	public static List<IHyperlink> findTracHyperlinks(TaskRepository repository, String text, int offsetInText,
 			int textOffset) {
 		List<IHyperlink> links = new ArrayList<IHyperlink>();

 		Matcher m = commentPattern.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String id = m.group(1);
 				// String comment = m.group(2);
 				links.add(new TaskHyperlink(determineRegion(textOffset, m), repository, id));
 			}
 		}

 		m = reportPattern1.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String id = m.group(1);
 				links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
 						+ ITracClient.REPORT_URL + id));
 			}
 		}

 		m = reportPattern2.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String id = m.group(1);
 				links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
 						+ ITracClient.REPORT_URL + id));
 			}
 		}

 		m = revisionLogPattern1.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String rev = m.group(1);
 				String stopRev = m.group(2);
 				String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL + "?rev=" + rev //$NON-NLS-1$
 						+ "&stop_rev=" + stopRev; //$NON-NLS-1$
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = revisionLogPattern2.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String rev = m.group(1);
 				String stopRev = m.group(2);
 				String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL + "?rev=" + rev //$NON-NLS-1$
 						+ "&stop_rev=" + stopRev; //$NON-NLS-1$
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = revisionLogPattern3.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String branch = m.group(1);
 				String rev = m.group(2);
 				String stopRev = m.group(3);
 				String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL;
 				if (branch != null) {
 					url += branch;
 				}
 				url += "?rev=" + rev + "&stop_rev=" + stopRev; //$NON-NLS-1$ //$NON-NLS-2$
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = changesetPattern1.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String rev = m.group(2);
 				String branch = m.group(3);
 				String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL + rev;
 				if (branch != null) {
 					url += branch;
 				}
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = changesetPattern2.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String rev = m.group(1);
 				String branch = m.group(2);
 				String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL + rev;
 				if (branch != null) {
 					url += branch;
 				}
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = diffPattern1.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String old_rev = m.group(1);
 				String new_rev = m.group(2);
 				String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL;
 				url += "?new=" + new_rev + "&old=" + old_rev; //$NON-NLS-1$ //$NON-NLS-2$
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = diffPattern2.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String old_path = m.group(1);
 				String old_rev = m.group(3);
 				String new_path = m.group(4);
 				String new_rev = m.group(6);
 				String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL;
 				try {
 					url += "?new_path=" + URLEncoder.encode(new_path, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
 					url += "&old_path=" + URLEncoder.encode(old_path, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
 				} catch (UnsupportedEncodingException e) {
 					StatusHandler.log(new Status(IStatus.WARNING, TracUiPlugin.ID_PLUGIN, "Unexcpected exception", e)); //$NON-NLS-1$
 					continue;
 				}
 				if (new_rev != null) {
 					url += "&new=" + new_rev; //$NON-NLS-1$
 				}
 				if (old_rev != null) {
 					url += "&old=" + old_rev; //$NON-NLS-1$
 				}
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		m = wikiPattern1.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String page = m.group(1);
 				links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
 						+ ITracClient.WIKI_URL + page));
 			}
 		}

 		m = wikiPattern2.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String page = m.group(0);
 				links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
 						+ ITracClient.WIKI_URL + page));
 			}
 		}

 		m = milestonePattern.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String milestone = m.group(1);
 				links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
 						+ ITracClient.MILESTONE_URL + milestone));
 			}
 		}

 		m = attachmentPattern.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String id = m.group(1);
 				// String attachment = m.group(2);
 				links.add(new TaskHyperlink(determineRegion(textOffset, m), repository, id));
 			}
 		}

 		m = filesPattern.matcher(text);
 		while (m.find()) {
 			if (isInRegion(offsetInText, m)) {
 				String filename = m.group(1);
 				String rev = m.group(3);
 				String line = m.group(5);
 				String url = repository.getRepositoryUrl() + ITracClient.BROWSER_URL + filename;
 				if (rev != null) {
 					url += "?rev=" + rev; //$NON-NLS-1$
 					if (line != null) {
 						url += "#L" + line; //$NON-NLS-1$
 					}
 				}
 				links.add(new WebHyperlink(determineRegion(textOffset, m), url));
 			}
 		}

 		return links;
 	}

 	private static boolean isInRegion(int offsetInText, Matcher m) {
 		return (offsetInText == -1) || (offsetInText >= m.start() && offsetInText <= m.end());
 	}

 	private static IRegion determineRegion(int textOffset, Matcher m) {
 		return new Region(textOffset + m.start(), m.end() - m.start());
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2006, 2009 Steffen Pingel and others.
	*
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License v. 2.0 which is available at
	* https://www.eclipse.org/legal/epl-2.0
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Steffen Pingel - initial API and implementation
	* David Green - fix for bug 244017
	*******************************************************************************/

	package org.eclipse.mylyn.internal.trac.ui;

	import java.io.UnsupportedEncodingException;
	import java.net.URLEncoder;
	import java.util.ArrayList;
	import java.util.List;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.jface.text.IRegion;
	import org.eclipse.jface.text.Region;
	import org.eclipse.jface.text.hyperlink.IHyperlink;
	import org.eclipse.mylyn.commons.core.StatusHandler;
	import org.eclipse.mylyn.internal.trac.core.client.ITracClient;
	import org.eclipse.mylyn.tasks.core.TaskRepository;
	import org.eclipse.mylyn.tasks.ui.TaskHyperlink;

	/**
	* Utility class for detecting Trac hyperlinks.
	*
	* @author Steffen Pingel
	* @author David Green partial fix hyperlink detection on {{{ see bug 265682
	*/
	public class TracHyperlinkUtil {

	static Pattern ticketPattern = createPattern("(ticket:\|#)(\\d+)"); //$NON-NLS-1$

	static Pattern commentPattern = createPattern("comment:ticket:(\\d+):(\\d+)"); //$NON-NLS-1$

	static Pattern reportPattern1 = createPattern("report:(\\d+)"); //$NON-NLS-1$

	static Pattern reportPattern2 = Pattern.compile("(?<!!\|\\{\\{)\\{(\\d+)\\}"); //$NON-NLS-1$

	static Pattern changesetPattern1 = createPattern("(r\|changeset:)(\\d+)(/\\w+)?"); //$NON-NLS-1$

	static Pattern changesetPattern2 = createPattern("\\[(\\d+)(/\\w+)?\\]"); //$NON-NLS-1$

	static Pattern revisionLogPattern1 = createPattern("r(\\d+):(\\d+)"); //$NON-NLS-1$

	static Pattern revisionLogPattern2 = createPattern("\\[(\\d+):(\\d+)\\]"); //$NON-NLS-1$

	static Pattern revisionLogPattern3 = createPattern("log:(\\w+)?@(\\d+):(\\d+)"); //$NON-NLS-1$

	static Pattern diffPattern1 = createPattern("diff:@(\\d+):(\\d+)"); //$NON-NLS-1$

	static Pattern diffPattern2 = createPattern("diff:([\\w\\./-]+)(@(\\d+))?//([\\w\\./-]+)(@(\\d+))?"); //$NON-NLS-1$

	static Pattern wikiPattern1 = createPattern("wiki:(\\w+)"); //$NON-NLS-1$

	static Pattern wikiPattern2 = Pattern.compile("(?<![!.a-zA-Z])[A-Z][a-z0-9]+[A-Z]\\w*"); //$NON-NLS-1$

	static Pattern milestonePattern = createPattern("milestone:([\\w\\.]+)"); //$NON-NLS-1$

	static Pattern attachmentPattern = createPattern("attachment:ticket:(\\d+):([\\w\\.]+)"); //$NON-NLS-1$

	static Pattern filesPattern = createPattern("source:/*([\\w\\./\\-_]+)(@(\\d+)(#L(\\d+))?)?"); //$NON-NLS-1$

	private static Pattern createPattern(String regexp) {
	// hyperlink patterns prefixed with "!" are not links
	return Pattern.compile("(?<!!)" + regexp); //$NON-NLS-1$
	}

	/**
	* Detects hyperlinks to Trac tickets.
	*/
	public static IHyperlink[] findTicketHyperlinks(TaskRepository repository, String text, int lineOffset,
	int regionOffset) {
	List<IHyperlink> links = null;
	Matcher m = ticketPattern.matcher(text);
	while (m.find()) {
	if (isInRegion(lineOffset, m)) {
	String id = m.group(2);
	if (links == null) {
	links = new ArrayList<IHyperlink>();
	}
	links.add(new TaskHyperlink(determineRegion(regionOffset, m), repository, id));
	}
	}
	return links == null ? null : links.toArray(new IHyperlink[0]);
	}

	/**
	* Detects Trac hyperlinks.
	* <ul>
	* <li>Ticket comments: comment:ticket:1:2
	* <li>Reports: {1} or report:1
	* <li>Changesets: r1, [1], changeset:1 or (restricted) [1/trunk], changeset:1/trunk
	* <li>Revision log: r1:3, [1:3] or log:@1:3, log:trunk@1:3
	* <li>Diffs: diff:@1:3, diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default or
	* diff:trunk/trac@3538//sandbox/vc-refactoring@3539
	* <li>Wiki pages: CamelCase or wiki:CamelCase
	* <li>Milestones: milestone:1.0
	* <li>Attachment: attachment:ticket:944:attachment.1073.diff
	* <li>Files: source:trunk/COPYING
	* <li>A specific file revision: source:/trunk/COPYING@200
	* <li>A particular line of a specific file revision: source:/trunk/COPYING@200#L25
	* </ul>
	*
	* @see http://trac.edgewall.org/wiki/TracLinks
	*/
	public static List<IHyperlink> findTracHyperlinks(TaskRepository repository, String text, int offsetInText,
	int textOffset) {
	List<IHyperlink> links = new ArrayList<IHyperlink>();

	Matcher m = commentPattern.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String id = m.group(1);
	// String comment = m.group(2);
	links.add(new TaskHyperlink(determineRegion(textOffset, m), repository, id));
	}
	}

	m = reportPattern1.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String id = m.group(1);
	links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
	+ ITracClient.REPORT_URL + id));
	}
	}

	m = reportPattern2.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String id = m.group(1);
	links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
	+ ITracClient.REPORT_URL + id));
	}
	}

	m = revisionLogPattern1.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String rev = m.group(1);
	String stopRev = m.group(2);
	String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL + "?rev=" + rev //$NON-NLS-1$
	+ "&stop_rev=" + stopRev; //$NON-NLS-1$
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = revisionLogPattern2.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String rev = m.group(1);
	String stopRev = m.group(2);
	String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL + "?rev=" + rev //$NON-NLS-1$
	+ "&stop_rev=" + stopRev; //$NON-NLS-1$
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = revisionLogPattern3.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String branch = m.group(1);
	String rev = m.group(2);
	String stopRev = m.group(3);
	String url = repository.getRepositoryUrl() + ITracClient.REVISION_LOG_URL;
	if (branch != null) {
	url += branch;
	}
	url += "?rev=" + rev + "&stop_rev=" + stopRev; //$NON-NLS-1$ //$NON-NLS-2$
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = changesetPattern1.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String rev = m.group(2);
	String branch = m.group(3);
	String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL + rev;
	if (branch != null) {
	url += branch;
	}
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = changesetPattern2.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String rev = m.group(1);
	String branch = m.group(2);
	String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL + rev;
	if (branch != null) {
	url += branch;
	}
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = diffPattern1.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String old_rev = m.group(1);
	String new_rev = m.group(2);
	String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL;
	url += "?new=" + new_rev + "&old=" + old_rev; //$NON-NLS-1$ //$NON-NLS-2$
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = diffPattern2.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String old_path = m.group(1);
	String old_rev = m.group(3);
	String new_path = m.group(4);
	String new_rev = m.group(6);
	String url = repository.getRepositoryUrl() + ITracClient.CHANGESET_URL;
	try {
	url += "?new_path=" + URLEncoder.encode(new_path, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
	url += "&old_path=" + URLEncoder.encode(old_path, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
	} catch (UnsupportedEncodingException e) {
	StatusHandler.log(new Status(IStatus.WARNING, TracUiPlugin.ID_PLUGIN, "Unexcpected exception", e)); //$NON-NLS-1$
	continue;
	}
	if (new_rev != null) {
	url += "&new=" + new_rev; //$NON-NLS-1$
	}
	if (old_rev != null) {
	url += "&old=" + old_rev; //$NON-NLS-1$
	}
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	m = wikiPattern1.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String page = m.group(1);
	links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
	+ ITracClient.WIKI_URL + page));
	}
	}

	m = wikiPattern2.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String page = m.group(0);
	links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
	+ ITracClient.WIKI_URL + page));
	}
	}

	m = milestonePattern.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String milestone = m.group(1);
	links.add(new WebHyperlink(determineRegion(textOffset, m), repository.getRepositoryUrl()
	+ ITracClient.MILESTONE_URL + milestone));
	}
	}

	m = attachmentPattern.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String id = m.group(1);
	// String attachment = m.group(2);
	links.add(new TaskHyperlink(determineRegion(textOffset, m), repository, id));
	}
	}

	m = filesPattern.matcher(text);
	while (m.find()) {
	if (isInRegion(offsetInText, m)) {
	String filename = m.group(1);
	String rev = m.group(3);
	String line = m.group(5);
	String url = repository.getRepositoryUrl() + ITracClient.BROWSER_URL + filename;
	if (rev != null) {
	url += "?rev=" + rev; //$NON-NLS-1$
	if (line != null) {
	url += "#L" + line; //$NON-NLS-1$
	}
	}
	links.add(new WebHyperlink(determineRegion(textOffset, m), url));
	}
	}

	return links;
	}

	private static boolean isInRegion(int offsetInText, Matcher m) {
	return (offsetInText == -1) \|\| (offsetInText >= m.start() && offsetInText <= m.end());
	}

	private static IRegion determineRegion(int textOffset, Matcher m) {
	return new Region(textOffset + m.start(), m.end() - m.start());
	}

	}