File lass/smarty/plugins/outputfilter.trimwhitespace.php

 1: <?php
 2: /**
 3:  * Smarty plugin
 4:  * @package Smarty
 5:  * @subpackage plugins
 6:  */
 7: 
 8: /**
 9:  * Smarty trimwhitespace outputfilter plugin
10:  *
11:  * File:     outputfilter.trimwhitespace.php<br>
12:  * Type:     outputfilter<br>
13:  * Name:     trimwhitespace<br>
14:  * Date:     Jan 25, 2003<br>
15:  * Purpose:  trim leading white space and blank lines from
16:  *           template source after it gets interpreted, cleaning
17:  *           up code and saving bandwidth. Does not affect
18:  *           <<PRE>></PRE> and <SCRIPT></SCRIPT> blocks.<br>
19:  * Install:  Drop into the plugin directory, call
20:  *           <code>$smarty->load_filter('output','trimwhitespace');</code>
21:  *           from application.
22:  * @author   Monte Ohrt <monte at ohrt dot com>
23:  * @author Contributions from Lars Noschinski <lars@usenet.noschinski.de>
24:  * @version  1.3
25:  * @param string
26:  * @param Smarty
27:  */
28: function smarty_outputfilter_trimwhitespace($source, &$smarty)
29: {
30:     // Pull out the script blocks
31:     preg_match_all("!<script[^>]*?>.*?</script>!is", $source, $match);
32:     $_script_blocks = $match[0];
33:     $source = preg_replace("!<script[^>]*?>.*?</script>!is",
34:                            '@@@SMARTY:TRIM:SCRIPT@@@', $source);
35: 
36:     // Pull out the pre blocks
37:     preg_match_all("!<pre[^>]*?>.*?</pre>!is", $source, $match);
38:     $_pre_blocks = $match[0];
39:     $source = preg_replace("!<pre[^>]*?>.*?</pre>!is",
40:                            '@@@SMARTY:TRIM:PRE@@@', $source);
41:     
42:     // Pull out the textarea blocks
43:     preg_match_all("!<textarea[^>]*?>.*?</textarea>!is", $source, $match);
44:     $_textarea_blocks = $match[0];
45:     $source = preg_replace("!<textarea[^>]*?>.*?</textarea>!is",
46:                            '@@@SMARTY:TRIM:TEXTAREA@@@', $source);
47: 
48:     // remove all leading spaces, tabs and carriage returns NOT
49:     // preceeded by a php close tag.
50:     $source = trim(preg_replace('/((?<!\?>)\n)[\s]+/m', '\1', $source));
51: 
52:     // replace textarea blocks
53:     smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@",$_textarea_blocks, $source);
54: 
55:     // replace pre blocks
56:     smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@",$_pre_blocks, $source);
57: 
58:     // replace script blocks
59:     smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@",$_script_blocks, $source);
60: 
61:     return $source;
62: }
63: 
64: function smarty_outputfilter_trimwhitespace_replace($search_str, $replace, &$subject) {
65:     $_len = strlen($search_str);
66:     $_pos = 0;
67:     for ($_i=0, $_count=count($replace); $_i<$_count; $_i++)
68:         if (($_pos=strpos($subject, $search_str, $_pos))!==false)
69:             $subject = substr_replace($subject, $replace[$_i], $_pos, $_len);
70:         else
71:             break;
72: 
73: }
74: 
75: ?>
76:
Namespaces

Classes

Interfaces

Exceptions

Functions
