/*
* #%~
* org.overture.ide.ui
* %%
* Copyright (C) 2008 - 2014 Overture
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #~%
*/
package org.overture.ide.ui.editor.syntax;
import org.eclipse.jface.text.rules.ICharacterScanner;
import org.eclipse.jface.text.rules.IRule;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.Token;
public class CharacterRule implements IRule {
public static final int EOF = -1;
IToken fToken = null;
public CharacterRule(IToken token) {
fToken = token;
}
public IToken evaluate(ICharacterScanner scanner) {
int c = scanner.read();
if (c == EOF) {
scanner.unread();
return Token.EOF;
}
if ((char) c == '\'') {
c = scanner.read();
if (c == EOF) {
scanner.unread();
return Token.EOF;
}
c = scanner.read();
if ((char) c == '\'') {
return fToken;
}
}
scanner.unread();
return Token.UNDEFINED;
}
}