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   1  <?php
   2  
   3  /*
   4   * Smarty plugin
   5   * -------------------------------------------------------------
   6   * Type:     modifier
   7   * Name:     truncate
   8   * Purpose:  Truncate a string to a certain length if necessary,
   9   *           optionally splitting in the middle of a word, and 
  10   *           appending the $etc string.
  11   * -------------------------------------------------------------
  12   */
  13  function smarty_modifier_truncate($string, $length = 80, $etc = '...',
  14                                    $break_words = false)
  15  {
  16      if ($length == 0)
  17          return '';
  18  
  19      if (strlen($string) > $length) {
  20          $length -= strlen($etc);
  21          $fragment = substr($string, 0, $length+1);
  22          if ($break_words)
  23              $fragment = substr($fragment, 0, -1);
  24          else
  25              $fragment = preg_replace('/\s+(\S+)?$/', '', $fragment);
  26          return $fragment.$etc;
  27      } else
  28          return $string;
  29  }
  30  
  31  /* vim: set expandtab: */
  32  
  33  ?>