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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', $source)); |
51 | |
52 | // replace script blocks |
53 | smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@",$_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 $source; |
62 | } |
63 | |
64 | function smarty_outputfilter_trimwhitespace_replace($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 | ?> |