[pLog-svn] r3834 - plog/trunk/class/template/smarty/plugins

[mark at devel.lifetype.net]

Author: mark
Date: 2006-08-02 14:55:29 +0000 (Wed, 02 Aug 2006)
New Revision: 3834

Modified:
   plog/trunk/class/template/smarty/plugins/modifier.utf8_wordwrap.php
Log:
Change the utf8_wordwrap to a better version. You can find it here: http://milianw.de/section:Snippets/content:UTF-8-Wordwrap

1. completly the same syntax as the original wordwrap function: string utf8_wordwrap(string $str, integer $width, string $break [, bool $cut]); 
2. The $cut parameter is supported (tjomi4's function only supports $cut = true).
But be careful: I use regular expression word boundaries (\b) for this feature. I'm not sure if this works everywhere! 
3. The function uses the multibyte extension if installed for counting the string length 
4. The regular expression inside the while loop is shorter and uses preg_match() instead of preg_replace(). That should improve performance and prevent a strange bug (Compilation failed: regular expression too large) 

Modified: plog/trunk/class/template/smarty/plugins/modifier.utf8_wordwrap.php
===================================================================
--- plog/trunk/class/template/smarty/plugins/modifier.utf8_wordwrap.php	2006-08-02 09:58:16 UTC (rev 3833)
+++ plog/trunk/class/template/smarty/plugins/modifier.utf8_wordwrap.php	2006-08-02 14:55:29 UTC (rev 3834)
@@ -23,25 +23,40 @@
  */
 function smarty_modifier_utf8_wordwrap($string,$length=80,$break="\n",$cut=false)
 {
-	return utf8_wordwrap($string,$length,$break);
+	return utf8_wordwrap($string, $length, $break, $cut);
 }
 
-function utf8_wordwrap($str,$len,$what){
-	# usage: utf8_wordwrap("text",3,"<br>");
-	# by tjomi4`, thanks to	SiMM.
-	# www.yeap.lv
-	$from=0;
-	$str_length	= preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty);
-	$while_what	= $str_length /	$len;
-	while($i <=	round($while_what)){
-		$string	= preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'.
-							   '((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s',
-							   '$1',$str);
-		$total .= $string.$what;
-		$from =	$from+$len;
-		$i++;
-	}
-	return $total;
+/** 
+ * wordwrap for utf8 encoded strings, http://milianw.de/section:Snippets/content:UTF-8-Wordwrap
+ * 
+ * @param string $str 
+ * @param integer $len 
+ * @param string $what 
+ * @return string 
+ */ 
+ 
+function utf8_wordwrap($str, $width, $break,$cut = false){ 
+    if(!$cut){ 
+        $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.',}\b#U'; 
+    } else { 
+        $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.'}#'; 
+    } 
+    if(function_exists('mb_strlen')){ 
+        $str_len = mb_strlen($str,'UTF-8'); 
+    } else { 
+        $str_len = preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty); 
+    } 
+    $while_what = ceil($str_len / $width); 
+    $i = 1; 
+    $return = ''; 
+    while ($i < $while_what){ 
+        preg_match($regexp, $str,$matches); 
+        $string = $matches[0]; 
+        $return .= $string . $break; 
+        $str = substr($str,strlen($string)); 
+        $i++; 
+    } 
+    return $return.$str; 
 }
 
 ?>
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