<?php

/*
 +--------------------------------------------------------------------+
 | CiviCRM version 1.7                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2007                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the Affero General Public License Version 1,    |
 | March 2002.                                                        |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the Affero General Public License for more details.            |
 |                                                                    |
 | You should have received a copy of the Affero General Public       |
 | License along with this program; if not, contact CiviCRM LLC       |
 | at info[AT]civicrm[DOT]org.  If you have questions about the       |
 | Affero General Public License or the licensing  of CiviCRM,        |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2007
 * $Id$
 *
 */

/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */


/**
 * Smarty mb_truncate modifier plugin
 *
 * Type:     modifier<br>
 * Name:     mb_truncate<br>
 * Purpose:  Truncate a string to a certain length if necessary,
 *           optionally splitting in the middle of a word, and
 *           appending the $etc string. Multibyte version.
 * @link http://smarty.php.net/manual/en/language.modifier.truncate.php
 *          truncate (Smarty online manual)
 * @param string
 * @param integer
 * @param string
 * @param boolean
 * @return string
 */
function smarty_modifier_mb_truncate($string, $length = 80, $etc = '...',
                                  $break_words = false)
{
    if (function_exists('mb_internal_encoding') and function_exists('mb_strlen') and function_exists('mb_substr')) {
        mb_internal_encoding('UTF-8');
        $strlen = 'mb_strlen';
        $substr = 'mb_substr';
    } else {
        $strlen = 'strlen';
        $substr = 'substr';
    }
    
    if ($length == 0)
        return '';

    if ($strlen($string) > $length) {
        $length -= $strlen($etc);
        if (!$break_words)
            $string = preg_replace('/\s+?(\S+)?$/', '', $substr($string, 0, $length+1));
      
        return $substr($string, 0, $length).$etc;
    } else
        return $string;
}

/* vim: set expandtab: */

?>
