library/smarty/plugins/modifier.truncate.php

   1 <?php
   2 /**
   3  * Smarty plugin
   4  * @package Smarty
   5  * @subpackage plugins
   6  */
   7
   8
   9 /**
  10  * Smarty truncate modifier plugin
  11  *
  12  * Type:     modifier<br>
  13  * Name:     truncate<br>
  14  * Purpose:  Truncate a string to a certain length if necessary,
  15  *           optionally splitting in the middle of a word, and
  16  *           appending the $etc string or inserting $etc into the middle.
  17  * @link http://smarty.php.net/manual/en/language.modifier.truncate.php
  18  *          truncate (Smarty online manual)
  19  * @author   Monte Ohrt <monte at ohrt dot com>
  20  * @param string
  21  * @param integer
  22  * @param string
  23  * @param boolean
  24  * @param boolean
  25  * @return string
  26  */
  27 function smarty_modifier_truncate($string, $length = 80, $etc = '...',
  28                                   $break_words = false, $middle = false)
  29 {
  30     if ($length == 0)
  31         return '';
  32
  33     if (strlen($string) > $length) {
  34         $length -= strlen($etc);
  35         if (!$break_words && !$middle) {
  36             $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length+1));
  37         }
  38         if(!$middle) {
  39             return substr($string, 0, $length).$etc;
  40         } else {
  41             return substr($string, 0, $length/2) . $etc . substr($string, -$length/2);
  42         }
  43     } else {
  44         return $string;
  45     }
  46 }
  47
  48 /* vim: set expandtab: */
  49
  50 ?>