- /*
- * Copyright 2001-2004 The Apache Software Foundation
- *
- * 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 org.apache.tools.ant.util.regexp;
-
- import org.apache.oro.text.regex.Perl5Substitution;
- import org.apache.oro.text.regex.Substitution;
- import org.apache.oro.text.regex.Util;
- import org.apache.tools.ant.BuildException;
-
-
-
- /***
- * Regular expression implementation using the Jakarta Oro package
- */
- public class JakartaOroRegexp extends JakartaOroMatcher implements Regexp {
-
- public JakartaOroRegexp() {
- super();
- }
-
- public String substitute(String input, String argument, int options)
- throws BuildException {
- // translate \1 to $1 so that the Perl5Substitution will work
- StringBuffer subst = new StringBuffer();
- for (int i = 0; i < argument.length(); i++) {
- char c = argument.charAt(i);
- if (c == '$') {
- subst.append('\\');
- subst.append('$');
- } else if (c == '\\') {
- if (++i < argument.length()) {
- c = argument.charAt(i);
- int value = Character.digit(c, 10);
- if (value > -1) {
- subst.append("$").append(value);
- } else {
- subst.append(c);
- }
- } else {
- // XXX - should throw an exception instead?
- subst.append('\\');
- }
- } else {
- subst.append(c);
- }
- }
-
-
- // Do the substitution
- Substitution s =
- new Perl5Substitution(subst.toString(),
- Perl5Substitution.INTERPOLATE_ALL);
- return Util.substitute(matcher,
- getCompiledPattern(options),
- s,
- input,
- getSubsOptions(options));
- }
-
- protected int getSubsOptions(int options) {
- boolean replaceAll = RegexpUtil.hasFlag(options, REPLACE_ALL);
- int subsOptions = 1;
- if (replaceAll) {
- subsOptions = Util.SUBSTITUTE_ALL;
- }
- return subsOptions;
- }
-
- }