Habari\Utils::regexdelim PHP Méthode

    public static function regexdelim($string, $choices = null)
    {
        /*
         * Supply some default possibilities for delimiters if we
         * weren't given an explicit list.
         */
        if (!isset($choices)) {
            $choices = sprintf('%c%c%c%c%c%c%c', 167, 164, 165, ord('`'), ord('~'), ord('%'), ord('#'));
        }
        $a_delims = str_split($choices);
        /*
         * Default condition is 'we didn't find one.'
         */
        $delim = null;
        /*
         * Check for each possibility by scanning the text for it.
         * If it isn't found, it's a valid choice, so break out of the
         * loop.
         */
        foreach ($a_delims as $tdelim) {
            if (!strstr($string, $tdelim)) {
                $delim = $tdelim;
                break;
            }
        }
        return $delim;
    }