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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 ?> |