| /******************************************************************************* |
| * Copyright (c) 2006, 2012 Oracle 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: |
| * Oracle Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.bpel.ui.editors.xpath.rules; |
| |
| 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.Token; |
| import org.eclipse.jface.text.rules.WordRule; |
| |
| |
| /** |
| * Rule for recognizing axis. |
| * |
| * @author Michal Chmielewski (michal.chmielewski@oracle.com) |
| * @date Dec 20, 2006 |
| * |
| */ |
| public class AxisRule extends WordRule { |
| |
| /** |
| * @param detector |
| */ |
| |
| public AxisRule(IWordDetector detector) { |
| super(detector); |
| } |
| |
| /** |
| * @param words |
| * @param token |
| */ |
| public void addWords(String[] words, IToken token) { |
| for (int i = 0; i < words.length; i++) { |
| addWord(words[i], token); |
| } |
| } |
| |
| /** |
| * Axis names are (non-Javadoc) |
| * |
| * @see org.eclipse.jface.text.rules.WordRule#evaluate(org.eclipse.jface.text.rules.ICharacterScanner) |
| */ |
| @Override |
| public IToken evaluate(ICharacterScanner scanner) { |
| |
| IToken token = super.evaluate(scanner); |
| if (token == Token.UNDEFINED) { |
| return token; |
| } |
| // otherwise we have matched the axis name, however, for it to be valid |
| // it must be followed by :: |
| // so ... |
| int ch1 = scanner.read(); |
| int ch2 = scanner.read(); |
| if (ch1 == ch2 && ch1 == ':') { |
| scanner.unread(); |
| scanner.unread(); |
| return token; |
| } |
| |
| // not it |
| unreadBuffer(scanner); |
| return Token.UNDEFINED; |
| } |
| } |