| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.ant.common.util; |
| |
| import java.util.List; |
| |
| /** |
| * A set of utilities for handling Ant properties and values |
| * |
| * @author Conor MacNeill |
| * @created 31 January 2002 |
| */ |
| public class PropertyUtils { |
| /** |
| * This method will parse a string containing ${value} style property |
| * values into two lists. The first list is a collection of text |
| * fragments, while the other is a set of string property names. Null |
| * entries in the first list indicate a property reference from the |
| * second list. |
| * |
| * @param value the string to be parsed |
| * @param fragments the fragments parsed out of the string |
| * @param propertyRefs the property refs to be replaced |
| * @exception ExecutionException if there is a problem parsing out the |
| * values |
| */ |
| public static void parsePropertyString(String value, List fragments, |
| List propertyRefs) |
| throws ExecutionException { |
| int prev = 0; |
| int pos; |
| while ((pos = value.indexOf("$", prev)) >= 0) { |
| if (pos > 0) { |
| fragments.add(value.substring(prev, pos)); |
| } |
| |
| if (pos == (value.length() - 1)) { |
| fragments.add("$"); |
| prev = pos + 1; |
| } else if (value.charAt(pos + 1) != '{') { |
| fragments.add(value.substring(pos + 1, pos + 2)); |
| prev = pos + 2; |
| } else { |
| int endName = value.indexOf('}', pos); |
| if (endName < 0) { |
| throw new ExecutionException("Syntax error in property: " |
| + value); |
| } |
| String propertyName = value.substring(pos + 2, endName); |
| fragments.add(null); |
| propertyRefs.add(propertyName); |
| prev = endName + 1; |
| } |
| } |
| |
| if (prev < value.length()) { |
| fragments.add(value.substring(prev)); |
| } |
| } |
| |
| /** |
| * returns the boolean equivalent of a string, which is considered true |
| * if either "on", "true", or "yes" is found, ignoring case. |
| * |
| * @param s the string value to be interpreted at a boolean |
| * @return the value of s as a boolean |
| */ |
| public static boolean toBoolean(String s) { |
| return (s != null && (s.equalsIgnoreCase("on") |
| || s.equalsIgnoreCase("true") |
| || s.equalsIgnoreCase("yes"))); |
| } |
| |
| } |
| |