<?php 
/** 
 * Smarty plugin 
 * 
 * @package    Smarty 
 * @subpackage PluginsModifierCompiler 
 */ 
/** 
 * Smarty count_words modifier plugin 
 * Type:     modifier 
 * Name:     count_words 
 * Purpose:  count the number of words in a text 
 * 
 * @link   http://www.smarty.net/manual/en/language.modifier.count.words.php count_words (Smarty online manual) 
 * @author Uwe Tews 
 * 
 * @param array $params parameters 
 * 
 * @return string with compiled code 
 */ 
function smarty_modifiercompiler_count_words($params) 
{ 
    if (Smarty::$_MBSTRING) { 
        // return 'preg_match_all(\'#[\w\pL]+#' . Smarty::$_UTF8_MODIFIER . '\', ' . $params[0] . ', $tmp)'; 
        // expression taken from http://de.php.net/manual/en/function.str-word-count.php#85592 
        return 'preg_match_all(\'/\p{L}[\p{L}\p{Mn}\p{Pd}\\\'\x{2019}]*/' . Smarty::$_UTF8_MODIFIER . '\', ' . 
               $params[ 0 ] . ', $tmp)'; 
    } 
    // no MBString fallback 
    return 'str_word_count(' . $params[ 0 ] . ')'; 
} 
 
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