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Java > Open Source Codes > org > apache > tools > ant > taskdefs > optional > sitraka > StringUtil


1 /*
2  * Copyright 2001,2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 package org.apache.tools.ant.taskdefs.optional.sitraka;
18
19 /**
20  * String utilities method.
21  */
22 public final class StringUtil {
23     /** private constructor, it's a utility class */
24     private StringUtil() {
25     }
26
27     /**
28      * Replaces all occurences of <tt>find</tt> with <tt>replacement</tt> in the
29      * source StringBuffer.
30      * @param src the original string buffer to modify.
31      * @param find the string to be replaced.
32      * @param replacement the replacement string for <tt>find</tt> matches.
33      */
34     public static void replace(StringBuffer JavaDoc src, String JavaDoc find, String JavaDoc replacement) {
35         int index = 0;
36         while (index < src.length()) {
37             index = src.toString().indexOf(find, index);
38             if (index == -1) {
39                 break;
40             }
41             src.delete(index, index + find.length());
42             src.insert(index, replacement);
43             index += replacement.length() + 1;
44         }
45     }
46 }
47
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