/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package java.util.regex;
import com.google.gwt.regexp.shared.RegExp;
import com.google.gwt.regexp.shared.MatchResult;
/** Emulation of the {@link Matcher} class, uses {@link RegExp} as internal implementation.
* @author hneuer */
public class Matcher {
private final RegExp regExp;
private final String input;
private final MatchResult matchResult;
Matcher (Pattern pattern, CharSequence input) {
this.regExp = pattern.regExp;
this.input = String.valueOf(input);
matchResult = regExp.exec(this.input);
}
public boolean find () {
return regExp.test(input);
}
public boolean matches () {
return regExp.test(input);
}
public String group (int group) {
return matchResult.getGroup(group);
}
public static String quoteReplacement(String s) {
if ((s.indexOf('\\') == -1) && (s.indexOf('$') == -1))
return s;
StringBuilder sb = new StringBuilder(s.length());
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (c == '\\' || c == '$') {
sb.append('\\');
}
sb.append(c);
}
return sb.toString();
}
}