| 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>$smarty->load_filter('output','trimwhitespace');</code> |
| 21 | * from application. |
| 22 | * @author Monte Ohrt <monte@ispi.net> |
| 23 | * @author Contributions from Lars Noschinski <lars@usenet.noschinski.de> |
| 24 | * @version 1.3 |
| 25 | * @param string |
| 26 | * @param Smarty |
| 27 | */ |
| 28 | function smarty_outputfilter_trimwhitespace($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 | ?> |