1: <?php
 2: /**
 3:  * Smarty shared plugin
 4:  *
 5:  * @package    Smarty
 6:  * @subpackage PluginsShared
 7:  */
 8: 
 9: if (!function_exists('smarty_mb_wordwrap')) {
10: 
11:     /**
12:      * Wrap a string to a given number of characters
13:      *
14:      * @link   http://php.net/manual/en/function.wordwrap.php for similarity
15:      *
16:      * @param  string  $str   the string to wrap
17:      * @param  int     $width the width of the output
18:      * @param  string  $break the character used to break the line
19:      * @param  boolean $cut   ignored parameter, just for the sake of
20:      *
21:      * @return string  wrapped string
22:      * @author Rodney Rehm
23:      */
24:     function smarty_mb_wordwrap($str, $width = 75, $break = "\n", $cut = false)
25:     {
26:         // break words into tokens using white space as a delimiter
27:         $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, - 1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
28:         $length = 0;
29:         $t = '';
30:         $_previous = false;
31:         $_space = false;
32: 
33:         foreach ($tokens as $_token) {
34:             $token_length = mb_strlen($_token, Smarty::$_CHARSET);
35:             $_tokens = array($_token);
36:             if ($token_length > $width) {
37:                  if ($cut) {
38:                     $_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, - 1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
39:                 }
40:             }
41: 
42:             foreach ($_tokens as $token) {
43:                 $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);
44:                 $token_length = mb_strlen($token, Smarty::$_CHARSET);
45:                 $length += $token_length;
46: 
47:                 if ($length > $width) {
48:                     // remove space before inserted break
49:                     if ($_previous) {
50:                         $t = mb_substr($t, 0, - 1, Smarty::$_CHARSET);
51:                     }
52: 
53:                     if (!$_space) {
54:                         // add the break before the token
55:                         if (!empty($t)) {
56:                             $t .= $break;
57:                         }
58:                         $length = $token_length;
59:                     }
60:                 } elseif ($token == "\n") {
61:                     // hard break must reset counters
62:                     $_previous = 0;
63:                     $length = 0;
64:                 }
65:                 $_previous = $_space;
66:                 // add the token
67:                 $t .= $token;
68:             }
69:         }
70: 
71:         return $t;
72:     }
73: }
74: