diff options
Diffstat (limited to 'org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsolePatternMatcher.java')
| -rw-r--r-- | org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsolePatternMatcher.java | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsolePatternMatcher.java b/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsolePatternMatcher.java deleted file mode 100644 index e1d9abe3d..000000000 --- a/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsolePatternMatcher.java +++ /dev/null @@ -1,310 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 IBM Corporation 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: - * IBM Corporation - initial API and implementation - *******************************************************************************/ - -package org.eclipse.ui.internal.console; - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.core.runtime.IStatus; -import org.eclipse.core.runtime.Status; -import org.eclipse.core.runtime.jobs.Job; -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.DocumentEvent; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.IDocumentListener; -import org.eclipse.ui.console.ConsolePlugin; -import org.eclipse.ui.console.IPatternMatchListener; -import org.eclipse.ui.console.PatternMatchEvent; -import org.eclipse.ui.console.TextConsole; - -public class ConsolePatternMatcher implements IDocumentListener { - - private MatchJob fMatchJob = new MatchJob(); - - /** - * Collection of compiled pattern match listeners - */ - private ArrayList fPatterns = new ArrayList(); - - private TextConsole fConsole; - - private boolean fFinalMatch; - - private boolean fScheduleFinal; - - public ConsolePatternMatcher(TextConsole console) { - fConsole = console; - } - - private class MatchJob extends Job { - MatchJob() { - super("Match Job"); //$NON-NLS-1$ - setSystem(true); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor) - */ - protected IStatus run(IProgressMonitor monitor) { - IDocument doc = fConsole.getDocument(); - String text = null; - int prevBaseOffset = -1; - if (doc != null && !monitor.isCanceled()) { - int endOfSearch = doc.getLength(); - int indexOfLastChar = endOfSearch; - if (indexOfLastChar > 0) { - indexOfLastChar--; - } - int lastLineToSearch = 0; - int offsetOfLastLineToSearch = 0; - try { - lastLineToSearch = doc.getLineOfOffset(indexOfLastChar); - offsetOfLastLineToSearch = doc.getLineOffset(lastLineToSearch); - } catch (BadLocationException e) { - // perhaps the buffer was re-set - return Status.OK_STATUS; - } - Object[] patterns = null; - synchronized (fPatterns) { - patterns = fPatterns.toArray(); - } - for (int i = 0; i < patterns.length; i++) { - if (monitor.isCanceled()) { - break; - } - CompiledPatternMatchListener notifier = (CompiledPatternMatchListener) patterns[i]; - int baseOffset = notifier.end; - int lengthToSearch = endOfSearch - baseOffset; - if (lengthToSearch > 0) { - try { - if (prevBaseOffset != baseOffset) { - // reuse the text string if possible - text = doc.get(baseOffset, lengthToSearch); - } - Matcher reg = notifier.pattern.matcher(text); - Matcher quick = null; - if (notifier.qualifier != null) { - quick = notifier.qualifier.matcher(text); - } - int startOfNextSearch = 0; - int endOfLastMatch = -1; - int lineOfLastMatch = -1; - while ((startOfNextSearch < lengthToSearch) && !monitor.isCanceled()) { - if (quick != null) { - if (quick.find(startOfNextSearch)) { - // start searching on the beginning - // of the line where the potential - // match was found, or after the - // last match on the same line - int matchLine = doc.getLineOfOffset(baseOffset + quick.start()); - if (lineOfLastMatch == matchLine) { - startOfNextSearch = endOfLastMatch; - } else { - startOfNextSearch = doc.getLineOffset(matchLine) - baseOffset; - } - } else { - startOfNextSearch = lengthToSearch; - } - } - if (startOfNextSearch < 0) { - startOfNextSearch = 0; - } - if (startOfNextSearch < lengthToSearch) { - if (reg.find(startOfNextSearch)) { - endOfLastMatch = reg.end(); - lineOfLastMatch = doc.getLineOfOffset(baseOffset + endOfLastMatch - 1); - int regStart = reg.start(); - IPatternMatchListener listener = notifier.listener; - if (listener != null && !monitor.isCanceled()) { - listener.matchFound(new PatternMatchEvent(fConsole, baseOffset + regStart, endOfLastMatch - regStart)); - } - startOfNextSearch = endOfLastMatch; - } else { - startOfNextSearch = lengthToSearch; - } - } - } - // update start of next search to the last line - // searched - // or the end of the last match if it was on the - // line that - // was last searched - if (lastLineToSearch == lineOfLastMatch) { - notifier.end = baseOffset + endOfLastMatch; - } else { - notifier.end = offsetOfLastLineToSearch; - } - } catch (BadLocationException e) { - ConsolePlugin.log(e); - } - } - prevBaseOffset = baseOffset; - } - } - - if (fFinalMatch) { - disconnect(); - fConsole.matcherFinished(); - } else if (fScheduleFinal) { - fFinalMatch = true; - schedule(); - } - - return Status.OK_STATUS; - } - - public boolean belongsTo(Object family) { - return family == fConsole; - } - - - } - - private class CompiledPatternMatchListener { - Pattern pattern; - - Pattern qualifier; - - IPatternMatchListener listener; - - int end = 0; - - CompiledPatternMatchListener(Pattern pattern, Pattern qualifier, IPatternMatchListener matchListener) { - this.pattern = pattern; - this.listener = matchListener; - this.qualifier = qualifier; - } - - public void dispose() { - listener.disconnect(); - pattern = null; - qualifier = null; - listener = null; - } - } - - /** - * Adds the given pattern match listener to this console. The listener will - * be connected and receive match notifications. - * - * @param matchListener - * the pattern match listener to add - */ - public void addPatternMatchListener(IPatternMatchListener matchListener) { - synchronized (fPatterns) { - - // check for dups - for (Iterator iter = fPatterns.iterator(); iter.hasNext();) { - CompiledPatternMatchListener element = (CompiledPatternMatchListener) iter.next(); - if (element.listener == matchListener) { - return; - } - } - - if (matchListener == null || matchListener.getPattern() == null) { - throw new IllegalArgumentException("Pattern cannot be null"); //$NON-NLS-1$ - } - - Pattern pattern = Pattern.compile(matchListener.getPattern(), matchListener.getCompilerFlags()); - String qualifier = matchListener.getLineQualifier(); - Pattern qPattern = null; - if (qualifier != null) { - qPattern = Pattern.compile(qualifier, matchListener.getCompilerFlags()); - } - CompiledPatternMatchListener notifier = new CompiledPatternMatchListener(pattern, qPattern, matchListener); - fPatterns.add(notifier); - matchListener.connect(fConsole); - fMatchJob.schedule(); - } - } - - /** - * Removes the given pattern match listener from this console. The listener - * will be disconnected and will no longer receive match notifications. - * - * @param matchListener - * the pattern match listener to remove. - */ - public void removePatternMatchListener(IPatternMatchListener matchListener) { - synchronized (fPatterns) { - for (Iterator iter = fPatterns.iterator(); iter.hasNext();) { - CompiledPatternMatchListener element = (CompiledPatternMatchListener) iter.next(); - if (element.listener == matchListener) { - iter.remove(); - matchListener.disconnect(); - } - } - } - } - - public void disconnect() { - fMatchJob.cancel(); - synchronized (fPatterns) { - Iterator iterator = fPatterns.iterator(); - while (iterator.hasNext()) { - CompiledPatternMatchListener notifier = (CompiledPatternMatchListener) iterator.next(); - notifier.dispose(); - } - fPatterns.clear(); - } - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.text.IDocumentListener#documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent) - */ - public void documentAboutToBeChanged(DocumentEvent event) { - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.text.IDocumentListener#documentChanged(org.eclipse.jface.text.DocumentEvent) - */ - public void documentChanged(DocumentEvent event) { - if (event.fLength > 0) { - synchronized (fPatterns) { - if (event.fDocument.getLength() == 0) { - // document has been cleared, reset match listeners - Iterator iter = fPatterns.iterator(); - while (iter.hasNext()) { - CompiledPatternMatchListener notifier = (CompiledPatternMatchListener) iter.next(); - notifier.end = 0; - } - } else { - if (event.fOffset == 0) { - //document was trimmed - Iterator iter = fPatterns.iterator(); - while (iter.hasNext()) { - CompiledPatternMatchListener notifier = (CompiledPatternMatchListener) iter.next(); - notifier.end = notifier.end > event.fLength ? notifier.end-event.fLength : 0; - } - } - } - } - } - fMatchJob.schedule(); - } - - - public void forceFinalMatching() { - fScheduleFinal = true; - fMatchJob.schedule(); - } - -} |