/bblog/smarty_plugins/outputfilter.trimwhitespace.php
PHP | 89 lines | 30 code | 14 blank | 45 comment | 2 complexity | 69924ed18fa8982d38284d4d237a2c6d MD5 | raw file
Possible License(s): AGPL-1.0
- <?php
- /**
- * Smarty plugin
- *
- * @subpackage plugins
- * @package Smarty
- */
- /**
- * Smarty trimwhitespace outputfilter plugin
- *
- * File: outputfilter.trimwhitespace.php<br>
- * Type: outputfilter<br>
- * Name: trimwhitespace<br>
- * Date: Jan 25, 2003<br>
- * Purpose: trim leading white space and blank lines from
- * template source after it gets interpreted, cleaning
- * up code and saving bandwidth. Does not affect
- * <<PRE>></PRE> and <SCRIPT></SCRIPT> blocks.<br>
- * Install: Drop into the plugin directory, call
- * <code>$smarty->load_filter('output','trimwhitespace');</code>
- * from application.
- *
- * @author Monte Ohrt <monte@ispi.net>
- * @author Contributions from Lars Noschinski <lars@usenet.noschinski.de>
- * @version 1.3
- * @param string
- * @param Smarty
- * @param unknown $source
- * @param unknown $smarty (reference)
- * @return unknown
- */
- function smarty_outputfilter_trimwhitespace($source, &$smarty) {
- // Pull out the script blocks
- preg_match_all("!<script[^>]+>.*?</script>!is", $source, $match);
- $_script_blocks = $match[0];
- $source = preg_replace("!<script[^>]+>.*?</script>!is",
- '@@@SMARTY:TRIM:SCRIPT@@@', $source);
- // Pull out the pre blocks
- preg_match_all("!<pre>.*?</pre>!is", $source, $match);
- $_pre_blocks = $match[0];
- $source = preg_replace("!<pre>.*?</pre>!is",
- '@@@SMARTY:TRIM:PRE@@@', $source);
- // Pull out the textarea blocks
- preg_match_all("!<textarea[^>]+>.*?</textarea>!is", $source, $match);
- $_textarea_blocks = $match[0];
- $source = preg_replace("!<textarea[^>]+>.*?</textarea>!is",
- '@@@SMARTY:TRIM:TEXTAREA@@@', $source);
- // remove all leading spaces, tabs and carriage returns NOT
- // preceeded by a php close tag.
- $source = trim(preg_replace('/((?<!\?>)\n)[\s]+/m', '\1', $source));
- // replace script blocks
- smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@", $_script_blocks, $source);
- // replace pre blocks
- smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@", $_pre_blocks, $source);
- // replace textarea blocks
- smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@", $_textarea_blocks, $source);
- return $source;
- }
- /**
- *
- *
- * @param unknown $search_str
- * @param unknown $replace
- * @param unknown $subject (reference)
- */
- function smarty_outputfilter_trimwhitespace_replace($search_str, $replace, &$subject) {
- $_len = strlen($search_str);
- $_pos = 0;
- for ($_i=0, $_count=count($replace); $_i<$_count; $_i++)
- if (($_pos=strpos($subject, $search_str, $_pos))!==false)
- $subject = substr_replace($subject, $replace[$_i], $_pos, $_len);
- else
- break;
- }
- ?>