/******************************************************************************* | |
* 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 2.0 | |
* which accompanies this distribution, and is available at | |
* https://www.eclipse.org/legal/epl-2.0/ | |
* | |
* SPDX-License-Identifier: EPL-2.0 | |
* | |
* 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; | |
} | |
} |