75 lines
2.6 KiB
PHP
75 lines
2.6 KiB
PHP
<?php
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/**
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* Smarty plugin
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* @package Smarty
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* @subpackage plugins
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*/
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/**
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* Smarty trimwhitespace outputfilter plugin
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*
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* File: outputfilter.trimwhitespace.php<br>
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* Type: outputfilter<br>
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* Name: trimwhitespace<br>
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* Date: Jan 25, 2003<br>
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* Purpose: trim leading white space and blank lines from
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* template source after it gets interpreted, cleaning
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* up code and saving bandwidth. Does not affect
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* <<PRE>></PRE> and <SCRIPT></SCRIPT> blocks.<br>
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* Install: Drop into the plugin directory, call
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* <code>$smarty->load_filter('output','trimwhitespace');</code>
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* from application.
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* @author Monte Ohrt <monte at ohrt dot com>
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* @author Contributions from Lars Noschinski <lars@usenet.noschinski.de>
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* @version 1.3
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* @param string
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* @param Smarty
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*/
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function smarty_outputfilter_trimwhitespace($source, &$smarty)
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{
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// Pull out the script blocks
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preg_match_all("!<script[^>]+>.*?</script>!is", $source, $match);
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$_script_blocks = $match[0];
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$source = preg_replace("!<script[^>]+>.*?</script>!is",
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'@@@SMARTY:TRIM:SCRIPT@@@', $source);
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// Pull out the pre blocks
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preg_match_all("!<pre>.*?</pre>!is", $source, $match);
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$_pre_blocks = $match[0];
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$source = preg_replace("!<pre>.*?</pre>!is",
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'@@@SMARTY:TRIM:PRE@@@', $source);
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// Pull out the textarea blocks
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preg_match_all("!<textarea[^>]+>.*?</textarea>!is", $source, $match);
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$_textarea_blocks = $match[0];
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$source = preg_replace("!<textarea[^>]+>.*?</textarea>!is",
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'@@@SMARTY:TRIM:TEXTAREA@@@', $source);
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// remove all leading spaces, tabs and carriage returns NOT
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// preceeded by a php close tag.
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$source = trim(preg_replace('/((?<!\?>)\n)[\s]+/m', '\1', $source));
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// replace script blocks
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smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@",$_script_blocks, $source);
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// replace pre blocks
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smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@",$_pre_blocks, $source);
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// replace textarea blocks
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smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@",$_textarea_blocks, $source);
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return $source;
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}
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function smarty_outputfilter_trimwhitespace_replace($search_str, $replace, &$subject) {
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$_len = strlen($search_str);
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$_pos = 0;
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for ($_i=0, $_count=count($replace); $_i<$_count; $_i++)
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if (($_pos=strpos($subject, $search_str, $_pos))!==false)
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$subject = substr_replace($subject, $replace[$_i], $_pos, $_len);
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else
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break;
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}
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?>
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