1. Project Clover database Tue Dec 20 2016 21:24:09 CET
  2. Package org.xwiki.text

File StringUtils.java

 

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Classes

Class Line # Actions
StringUtils 28 14 0% 4 0
1.0100%
 

Contributing tests

This file is covered by 1 test. .

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1    /*
2    * See the NOTICE file distributed with this work for additional
3    * information regarding copyright ownership.
4    *
5    * This is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU Lesser General Public License as
7    * published by the Free Software Foundation; either version 2.1 of
8    * the License, or (at your option) any later version.
9    *
10    * This software is distributed in the hope that it will be useful,
11    * but WITHOUT ANY WARRANTY; without even the implied warranty of
12    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13    * Lesser General Public License for more details.
14    *
15    * You should have received a copy of the GNU Lesser General Public
16    * License along with this software; if not, write to the Free
17    * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18    * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
19    */
20    package org.xwiki.text;
21   
22    /**
23    * Extends {@link org.apache.commons.lang3.StringUtils} with some more useful tools.
24    *
25    * @version $Id: eb7bbcaf336c6f791fdce502b7443f350229e2ae $
26    * @since 6.2
27    */
 
28    public class StringUtils extends org.apache.commons.lang3.StringUtils
29    {
30    /**
31    * An attempt to make doubling a character (usually for escaping purposes) as fast as it can be. A lot faster than
32    * the usual <code>mystring.replace("a", "aa")</code> for example.
33    *
34    * @param str the string to modify
35    * @param c the character to double
36    * @return the modified string
37    */
 
38  7 toggle public static String doubleChar(final String str, final char c)
39    {
40  7 if (isEmpty(str)) {
41  2 return str;
42    }
43   
44  5 int start = 0;
45  5 int end = str.indexOf(c, start);
46  5 if (end == INDEX_NOT_FOUND) {
47  1 return str;
48    }
49   
50  4 final StringBuilder buf = new StringBuilder(str.length() + 1);
51   
52  4 do {
53  7 end += 1;
54  7 buf.append(str.substring(start, end)).append(c);
55   
56  7 start = end;
57  7 end = str.indexOf(c, start);
58  7 } while (end != INDEX_NOT_FOUND);
59   
60  4 buf.append(str.substring(start));
61   
62  4 return buf.toString();
63    }
64    }