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/src/_includes/Smarty/plugins/outputfilter.trimwhitespace.php

https://bitbucket.org/dereckson/icedeck
PHP | 75 lines | 31 code | 11 blank | 33 comment | 2 complexity | d450a6b8021bd85d8a01dda02e666dc3 MD5 | raw file
 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>$smarty->load_filter('output','trimwhitespace');</code>
21 *           from application.
22 * @author   Monte Ohrt <monte at ohrt dot com>
23 * @author Contributions from Lars Noschinski <lars@usenet.noschinski.de>
24 * @version  1.3
25 * @param string
26 * @param Smarty
27 */
28function smarty_outputfilter_trimwhitespace($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', $source));
51
52    // replace script blocks
53    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@",$_script_blocks, $source);
54
55    // replace pre blocks
56    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@",$_pre_blocks, $source);
57
58    // replace textarea blocks
59    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@",$_textarea_blocks, $source);
60
61    return $source;
62}
63
64function smarty_outputfilter_trimwhitespace_replace($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?>