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