[BUGFIX] EXT:form tests and unicode fix
[Packages/TYPO3.CMS.git] / typo3 / sysext / form / Classes / Filter / AlphabeticFilter.php
1 <?php
2 namespace TYPO3\CMS\Form\Filter;
3
4 /***************************************************************
5 * Copyright notice
6 *
7 * (c) 2008 Patrick Broens (patrick@patrickbroens.nl)
8 * All rights reserved
9 *
10 * This script is part of the TYPO3 project. The TYPO3 project is
11 * free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * The GNU General Public License can be found at
17 * http://www.gnu.org/copyleft/gpl.html.
18 *
19 * This script is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * This copyright notice MUST APPEAR in all copies of the script!
25 ***************************************************************/
26 /**
27 * Alphabetic filter
28 *
29 * @author Patrick Broens <patrick@patrickbroens.nl>
30 * @package TYPO3
31 * @subpackage form
32 */
33 class AlphabeticFilter implements \TYPO3\CMS\Form\Filter\FilterInterface {
34
35 /**
36 * Allow whitespace
37 *
38 * @var boolean
39 */
40 protected $allowWhiteSpace;
41
42 /**
43 * Constructor
44 *
45 * @param array $arguments Filter configuration
46 */
47 public function __construct($arguments = array()) {
48 $this->setAllowWhiteSpace($arguments['allowWhiteSpace']);
49 }
50
51 /**
52 * Allow white space in the submitted value
53 *
54 * @param boolean $allowWhiteSpace True if allowed
55 * @return void
56 */
57 public function setAllowWhiteSpace($allowWhiteSpace = TRUE) {
58 $this->allowWhiteSpace = (bool) $allowWhiteSpace;
59 }
60
61 /**
62 * Return filtered value
63 * Remove all but alphabetic characters
64 * Allow whitespace by choice
65 *
66 * @param string $value
67 * @return string
68 */
69 public function filter($value) {
70 $whiteSpace = $this->allowWhiteSpace ? '\\s' : '';
71 $pattern = '/[^\pL' . $whiteSpace . ']/u';
72 return preg_replace($pattern, '', (string) $value);
73 }
74
75 }
76
77
78 ?>