content: /*
   *  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
   *
   *      https://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.taskdefs.condition;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.ProjectComponent;
  import org.apache.tools.ant.types.RegularExpression;
  import org.apache.tools.ant.util.regexp.Regexp;
  import org.apache.tools.ant.util.regexp.RegexpUtil;
  
  /**
   * Simple regular expression condition.
   *
   * @since Ant 1.7
   */
  public class Matches extends ProjectComponent implements Condition {
  
      private String  string;
      private boolean caseSensitive = true;
      private boolean multiLine = false;
      private boolean singleLine = false;
      private RegularExpression regularExpression;
  
      /**
       * Set the string
       *
       * @param string the string to match
       */
      public void setString(String string) {
          this.string = string;
      }
  
      /**
       * Set the regular expression to match against
       *
       * @param pattern the regular expression pattern
       */
      public void setPattern(String pattern) {
          if (regularExpression != null) {
              throw new BuildException(
                  "Only one regular expression is allowed.");
          }
          regularExpression = new RegularExpression();
          regularExpression.setPattern(pattern);
      }
  
      /**
       * A regular expression.
       * You can use this element to refer to a previously
       * defined regular expression datatype instance
       * @param regularExpression the regular expression object
       *                          to be configured as an element
       */
      public void addRegexp(RegularExpression regularExpression) {
          if (this.regularExpression != null) {
              throw new BuildException(
                  "Only one regular expression is allowed.");
          }
          this.regularExpression = regularExpression;
      }
  
      /**
       * Whether to ignore case or not.
       * @param b if false, ignore case.
       * @since Ant 1.7
       */
      public void setCasesensitive(boolean b) {
          caseSensitive = b;
      }
  
      /**
       * Whether to match should be multiline.
       * @param b the value to set.
       */
      public void setMultiline(boolean b) {
          multiLine = b;
      }
  
      /**
       * Whether to treat input as singleline ('.' matches newline).
       * Corresponds to java.util.regex.Pattern.DOTALL.
       * @param b the value to set.
       */
      public void setSingleLine(boolean b) {
          singleLine = b;
      }
  
      /**
       * @return true if the string matches the regular expression pattern
       * @exception BuildException if the attributes are not set correctly
       */
      public boolean eval() throws BuildException {
          if (string == null) {
              throw new BuildException(
                  "Parameter string is required in matches.");
          }
          if (regularExpression == null) {
              throw new BuildException("Missing pattern in matches.");
          }
          int options = RegexpUtil.asOptions(caseSensitive, multiLine, singleLine);
          Regexp regexp = regularExpression.getRegexp(getProject());
          return regexp.matches(string, options);
      }
  }
  