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1 <?php 1 <?php
2 // +----------------------------------------------------------------------+ 2 // +----------------------------------------------------------------------+
3 // | PHP Version 4 | 3 // | PHP Version 4 |
4 // +----------------------------------------------------------------------+ 4 // +----------------------------------------------------------------------+
5 // | Copyright (c) 1997-2004 The PHP Group | 5 // | Copyright (c) 1997-2004 The PHP Group |
6 // +----------------------------------------------------------------------+ 6 // +----------------------------------------------------------------------+
7 // | This source file is subject to version 3.0 of the PHP license, | 7 // | This source file is subject to version 3.0 of the PHP license, |
8 // | that is bundled with this package in the file LICENSE, and is | 8 // | that is bundled with this package in the file LICENSE, and is |
9 // | available at through the world-wide-web at | 9 // | available at through the world-wide-web at |
10 // | http://www.php.net/license/3_0.txt. | 10 // | http://www.php.net/license/3_0.txt. |
11 // | If you did not receive a copy of the PHP license and are unable to | 11 // | If you did not receive a copy of the PHP license and are unable to |
12 // | obtain it through the world-wide-web, please send a note to | 12 // | obtain it through the world-wide-web, please send a note to |
13 // | license@php.net so we can mail you a copy immediately. | 13 // | license@php.net so we can mail you a copy immediately. |
14 // +----------------------------------------------------------------------+ 14 // +----------------------------------------------------------------------+
15 // | Authors: Aidan Lister <aidan@php.net> | 15 // | Authors: Aidan Lister <aidan@php.net> |
16 // +----------------------------------------------------------------------+ 16 // +----------------------------------------------------------------------+
17 // 17 //
18 // $Id: php_strip_whitespace.php,v 1.10 2005/01/26 04:55:13 aidan Exp $ 18 // $Id: php_strip_whitespace.php,v 1.10 2005/01/26 04:55:13 aidan Exp $
19   19  
20   20  
21 /** 21 /**
22 * Replace php_strip_whitespace() 22 * Replace php_strip_whitespace()
23 * 23 *
24 * @category PHP 24 * @category PHP
25 * @package PHP_Compat 25 * @package PHP_Compat
26 * @link http://php.net/function.php_strip_whitespace 26 * @link http://php.net/function.php_strip_whitespace
27 * @author Aidan Lister <aidan@php.net> 27 * @author Aidan Lister <aidan@php.net>
28 * @version $Revision: 1.10 $ 28 * @version $Revision: 1.10 $
29 * @since PHP 5 29 * @since PHP 5
30 * @require PHP 4.0.0 (user_error) + Tokenizer extension 30 * @require PHP 4.0.0 (user_error) + Tokenizer extension
31 */ 31 */
32 if (!function_exists('php_strip_whitespace')) { 32 if (!function_exists('php_strip_whitespace')) {
33 function php_strip_whitespace($file) 33 function php_strip_whitespace($file)
34 { 34 {
35 // Sanity check 35 // Sanity check
36 if (!is_scalar($file)) { 36 if (!is_scalar($file)) {
37 user_error('php_strip_whitespace() expects parameter 1 to be string, ' . 37 user_error('php_strip_whitespace() expects parameter 1 to be string, ' .
38 gettype($file) . ' given', E_USER_WARNING); 38 gettype($file) . ' given', E_USER_WARNING);
39 return; 39 return;
40 } 40 }
41   41  
42 // Load file / tokens 42 // Load file / tokens
43 $source = implode('', file($file)); 43 $source = implode('', file($file));
44 $tokens = token_get_all($source); 44 $tokens = token_get_all($source);
45   45  
46 // Init 46 // Init
47 $source = ''; 47 $source = '';
48 $was_ws = false; 48 $was_ws = false;
49   49  
50 // Process 50 // Process
51 foreach ($tokens as $token) { 51 foreach ($tokens as $token) {
52 if (is_string($token)) { 52 if (is_string($token)) {
53 // Single character tokens 53 // Single character tokens
54 $source .= $token; 54 $source .= $token;
55 } else { 55 } else {
56 list($id, $text) = $token; 56 list($id, $text) = $token;
57 57
58 switch ($id) { 58 switch ($id) {
59 // Skip all comments 59 // Skip all comments
60 case T_COMMENT: 60 case T_COMMENT:
61 case T_ML_COMMENT: 61 case T_ML_COMMENT:
62 case T_DOC_COMMENT: 62 case T_DOC_COMMENT:
63 break; 63 break;
64   64  
65 // Remove whitespace 65 // Remove whitespace
66 case T_WHITESPACE: 66 case T_WHITESPACE:
67 // We don't want more than one whitespace in a row replaced 67 // We don't want more than one whitespace in a row replaced
68 if ($was_ws !== true) { 68 if ($was_ws !== true) {
69 $source .= ' '; 69 $source .= ' ';
70 } 70 }
71 $was_ws = true; 71 $was_ws = true;
72 break; 72 break;
73   73  
74 default: 74 default:
75 $was_ws = false; 75 $was_ws = false;
76 $source .= $text; 76 $source .= $text;
77 break; 77 break;
78 } 78 }
79 } 79 }
80 } 80 }
81   81  
82 return $source; 82 return $source;
83 } 83 }
84 } 84 }
85   85  
86 ?> 86 ?>
87 87