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         // break words into tokens using white space as a delimiter

    26         $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);

    27         $length = 0;

    28         $t = '';

    29         $_previous = false;

    30         $_space = false;

    31 

    32         foreach ($tokens as $_token) {

    33             $token_length = mb_strlen($_token, Smarty::$_CHARSET);

    34             $_tokens = array($_token);

    35             if ($token_length > $width) {

    36                 if ($cut) {

    37                     $_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);

    38                 }

    39             }

    40 

    41             foreach ($_tokens as $token) {

    42                 $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);

    43                 $token_length = mb_strlen($token, Smarty::$_CHARSET);

    44                 $length += $token_length;

    45 

    46                 if ($length > $width) {

    47                     // remove space before inserted break

    48                     if ($_previous) {

    49                         $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);

    50                     }

    51 

    52                     if (!$_space) {

    53                         // add the break before the token

    54                         if (!empty($t)) {

    55                             $t .= $break;

    56                         }

    57                         $length = $token_length;

    58                     }

    59                 } elseif ($token == "\n") {

    60                     // hard break must reset counters

    61                     $_previous = 0;

    62                     $length = 0;

    63                 }

    64                 $_previous = $_space;

    65                 // add the token

    66                 $t .= $token;

    67             }

    68         }

    69 

    70         return $t;

    71     }

    72 }