| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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 org.eclipse.jface.text.rules.ICharacterScanner; |
| import org.eclipse.jface.text.rules.IToken; |
| import org.eclipse.jface.text.rules.IWordDetector; |
| import org.eclipse.jface.text.rules.WordPatternRule; |
| |
| /** |
| * A specific single line rule for arguments in a property value. |
| * <p> |
| * An argument is defined as '{', digit, {digit}, '}' |
| * </p> |
| * |
| * @since 3.1 |
| */ |
| public final class ArgumentRule extends WordPatternRule { |
| |
| private static class ArgumentDetector implements IWordDetector { |
| |
| /* |
| * @see IWordDetector#isWordStart |
| */ |
| public boolean isWordStart(char c) { |
| return '{' == c; |
| } |
| |
| /* |
| * @see IWordDetector#isWordPart |
| */ |
| public boolean isWordPart(char c) { |
| return c == '}' || Character.isDigit(c); |
| } |
| } |
| |
| |
| private int fCount= 0; |
| |
| /** |
| * Creates an argument rule for the given <code>token</code>. |
| * |
| * @param token the token to be returned on success |
| */ |
| public ArgumentRule(IToken token) { |
| super(new ArgumentDetector(), "{", "}", token); //$NON-NLS-1$//$NON-NLS-2$ |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.rules.WordPatternRule#endSequenceDetected(org.eclipse.jface.text.rules.ICharacterScanner) |
| */ |
| protected boolean endSequenceDetected(ICharacterScanner scanner) { |
| fCount++; |
| |
| if (scanner.read() == '}') |
| return fCount > 2; |
| |
| scanner.unread(); |
| return super.endSequenceDetected(scanner); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.rules.PatternRule#sequenceDetected(org.eclipse.jface.text.rules.ICharacterScanner, char[], boolean) |
| */ |
| protected boolean sequenceDetected(ICharacterScanner scanner, char[] sequence, boolean eofAllowed) { |
| fCount= 0; |
| return super.sequenceDetected(scanner, sequence, eofAllowed); |
| } |
| } |