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diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/regexp/JakartaOroMatcher.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/regexp/JakartaOroMatcher.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 java.util.Vector;
+
+import org.apache.oro.text.regex.MatchResult;
+import org.apache.oro.text.regex.Pattern;
+import org.apache.oro.text.regex.Perl5Compiler;
+import org.apache.oro.text.regex.Perl5Matcher;
+import org.apache.tools.ant.BuildException;
+
+
+/**
+ * Implementation of RegexpMatcher for Jakarta-ORO.
+ *
+ */
+public class JakartaOroMatcher implements RegexpMatcher {
+
+ private String pattern;
+ // CheckStyle:VisibilityModifier OFF - bc
+ protected final Perl5Compiler compiler = new Perl5Compiler();
+ protected final Perl5Matcher matcher = new Perl5Matcher();
+ // CheckStyle:VisibilityModifier ON
+
+ /**
+ * Constructor for JakartaOroMatcher.
+ */
+ public JakartaOroMatcher() {
+ }
+
+ /**
+ * Set the regexp pattern from the String description.
+ * @param pattern the pattern to match
+ */
+ public void setPattern(final String pattern) {
+ this.pattern = pattern;
+ }
+
+ /**
+ * Get a String representation of the regexp pattern
+ * @return the pattern
+ */
+ public String getPattern() {
+ return this.pattern;
+ }
+
+ /**
+ * Get a compiled representation of the regexp pattern
+ * @param options the options
+ * @return the compiled pattern
+ * @throws BuildException on error
+ */
+ protected Pattern getCompiledPattern(final int options)
+ throws BuildException {
+ try {
+ // compute the compiler options based on the input options first
+ final Pattern p = compiler.compile(pattern, getCompilerOptions(options));
+ return p;
+ } catch (final Exception e) {
+ throw new BuildException(e);
+ }
+ }
+
+ /**
+ * Does the given argument match the pattern using default options?
+ * @param argument the string to match against
+ * @return true if the pattern matches
+ * @throws BuildException on error
+ */
+ public boolean matches(final String argument) throws BuildException {
+ return matches(argument, MATCH_DEFAULT);
+ }
+
+ /**
+ * Does the given argument match the pattern?
+ * @param input the string to match against
+ * @param options the regex options to use
+ * @return true if the pattern matches
+ * @throws BuildException on error
+ */
+ public boolean matches(final String input, final int options)
+ throws BuildException {
+ final Pattern p = getCompiledPattern(options);
+ return matcher.contains(input, p);
+ }
+
+ /**
+ * Returns a Vector of matched groups found in the argument
+ * using default options.
+ *
+ * <p>Group 0 will be the full match, the rest are the
+ * parenthesized subexpressions</p>.
+ *
+ * @param argument the string to match against
+ * @return the vector of groups
+ * @throws BuildException on error
+ */
+ public Vector getGroups(final String argument) throws BuildException {
+ return getGroups(argument, MATCH_DEFAULT);
+ }
+
+ /**
+ * Returns a Vector of matched groups found in the argument.
+ *
+ * <p>Group 0 will be the full match, the rest are the
+ * parenthesized subexpressions</p>.
+ *
+ * @param input the string to match against
+ * @param options the regex options to use
+ * @return the vector of groups
+ * @throws BuildException on error
+ */
+ public Vector getGroups(final String input, final int options)
+ throws BuildException {
+ if (!matches(input, options)) {
+ return null;
+ }
+ final Vector v = new Vector();
+ final MatchResult mr = matcher.getMatch();
+ final int cnt = mr.groups();
+ for (int i = 0; i < cnt; i++) {
+ String match = mr.group(i);
+ // treat non-matching groups as empty matches
+ if (match == null) {
+ match = "";
+ }
+ v.addElement(match);
+ }
+ return v;
+ }
+
+ /**
+ * Convert the generic options to the regex compiler specific options.
+ * @param options the generic options
+ * @return the specific options
+ */
+ protected int getCompilerOptions(final int options) {
+ int cOptions = Perl5Compiler.DEFAULT_MASK;
+
+ if (RegexpUtil.hasFlag(options, MATCH_CASE_INSENSITIVE)) {
+ cOptions |= Perl5Compiler.CASE_INSENSITIVE_MASK;
+ }
+ if (RegexpUtil.hasFlag(options, MATCH_MULTILINE)) {
+ cOptions |= Perl5Compiler.MULTILINE_MASK;
+ }
+ if (RegexpUtil.hasFlag(options, MATCH_SINGLELINE)) {
+ cOptions |= Perl5Compiler.SINGLELINE_MASK;
+ }
+
+ return cOptions;
+ }
+
+}