| /* |
| * 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.types; |
| |
| import org.apache.tools.ant.Project; |
| |
| /*** |
| * A regular expression substitution datatype. It is an expression |
| * that is meant to replace a regular expression. |
| * |
| * <pre> |
| * <substitution [ [id="id"] expression="expression" | refid="id" ] |
| * /> |
| * </pre> |
| * |
| * @see org.apache.oro.text.regex.Perl5Substitution |
| */ |
| public class Substitution extends DataType { |
| /** The name of this data type */ |
| public static final String DATA_TYPE_NAME = "substitution"; |
| |
| private String expression; |
| |
| /** Constructor for Substitution. */ |
| public Substitution() { |
| this.expression = null; |
| } |
| |
| /** |
| * Set the pattern string for this regular expression substitution. |
| * @param expression the regular expression to use |
| */ |
| public void setExpression(String expression) { |
| this.expression = expression; |
| } |
| |
| /*** |
| * Gets the pattern string for this RegularExpression in the |
| * given project. |
| * @param p the project to look for the regular expression if this object is |
| * a reference |
| * @return the pattern string |
| */ |
| public String getExpression(Project p) { |
| if (isReference()) { |
| return getRef(p).getExpression(p); |
| } |
| |
| return expression; |
| } |
| |
| /*** |
| * Get the RegularExpression this reference refers to in |
| * the given project. Check for circular references too. |
| * @param p the project to look for the regular expression reference |
| * @return the resolved reference |
| */ |
| public Substitution getRef(Project p) { |
| return (Substitution) getCheckedRef(p); |
| } |
| } |