<?php

/**

 * Smarty plugin

 *

 * @package    Smarty

 * @subpackage PluginsModifierCompiler

 */

/**

 * Smarty count_words modifier plugin

 * Type:     modifier<br>

 * Name:     count_words<br>

 * 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] . ')';

}