| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.jdt.internal.ui.propertiesfileeditor; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.BadPartitioningException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IDocumentExtension3; |
| import org.eclipse.jface.text.ITypedRegion; |
| import org.eclipse.jface.text.rules.IRule; |
| import org.eclipse.jface.text.rules.IToken; |
| import org.eclipse.jface.text.rules.IWordDetector; |
| import org.eclipse.jface.text.rules.WhitespaceRule; |
| import org.eclipse.jface.text.rules.WordRule; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jdt.ui.text.IColorManager; |
| |
| import org.eclipse.jdt.internal.ui.text.AbstractJavaScanner; |
| import org.eclipse.jdt.internal.ui.text.JavaWhitespaceDetector; |
| |
| |
| /** |
| * A rule based property value scanner. |
| * |
| * @since 3.1 |
| */ |
| public final class PropertyValueScanner extends AbstractJavaScanner { |
| |
| public class AssignmentDetector implements IWordDetector { |
| |
| /* |
| * @see IWordDetector#isWordStart |
| */ |
| public boolean isWordStart(char c) { |
| if ('=' != c && ':' != c || fDocument == null) |
| return false; |
| |
| try { |
| // check whether it is the first '=' in the logical line |
| |
| int i=fOffset-2; |
| while (Character.isWhitespace(fDocument.getChar(i))) { |
| i--; |
| } |
| |
| ITypedRegion partition= null; |
| if (fDocument instanceof IDocumentExtension3) |
| partition= ((IDocumentExtension3)fDocument).getPartition(IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING, i, false); |
| return partition != null && IDocument.DEFAULT_CONTENT_TYPE.equals(partition.getType()); |
| } catch (BadLocationException ex) { |
| return false; |
| } catch (BadPartitioningException e) { |
| return false; |
| } |
| } |
| |
| /* |
| * @see IWordDetector#isWordPart |
| */ |
| public boolean isWordPart(char c) { |
| return false; |
| } |
| } |
| |
| |
| private static String[] fgTokenProperties= { |
| PreferenceConstants.PROPERTIES_FILE_COLORING_VALUE, |
| PreferenceConstants.PROPERTIES_FILE_COLORING_ARGUMENT, |
| PreferenceConstants.PROPERTIES_FILE_COLORING_ASSIGNMENT |
| }; |
| |
| |
| /** |
| * Creates a property value code scanner |
| * |
| * @param manager the color manager |
| * @param store the preference store |
| */ |
| public PropertyValueScanner(IColorManager manager, IPreferenceStore store) { |
| super(manager, store); |
| initialize(); |
| } |
| |
| /* |
| * @see org.eclipse.jdt.internal.ui.text.AbstractJavaScanner#getTokenProperties() |
| */ |
| @Override |
| protected String[] getTokenProperties() { |
| return fgTokenProperties; |
| } |
| |
| /* |
| * @see org.eclipse.jdt.internal.ui.text.AbstractJavaScanner#createRules() |
| */ |
| @Override |
| protected List<IRule> createRules() { |
| setDefaultReturnToken(getToken(PreferenceConstants.PROPERTIES_FILE_COLORING_VALUE)); |
| List<IRule> rules= new ArrayList<IRule>(); |
| |
| // Add rule for arguments. |
| IToken token= getToken(PreferenceConstants.PROPERTIES_FILE_COLORING_ARGUMENT); |
| rules.add(new ArgumentRule(token)); |
| |
| // Add word rule for assignment operator. |
| token= getToken(PreferenceConstants.PROPERTIES_FILE_COLORING_ASSIGNMENT); |
| WordRule wordRule= new WordRule(new AssignmentDetector(), token); |
| rules.add(wordRule); |
| |
| // Add generic whitespace rule. |
| rules.add(new WhitespaceRule(new JavaWhitespaceDetector())); |
| |
| return rules; |
| } |
| } |