pQuery\TokenizerBase::next_search PHP Метод

    function next_search($characters, $callback = true)
    {
        $this->token_start = $this->pos;
        if (!is_array($characters)) {
            $characters = array_fill_keys(str_split($characters), true);
        }
        while (++$this->pos < $this->size) {
            if (isset($characters[$this->doc[$this->pos]])) {
                if ($callback && isset($this->char_map[$this->doc[$this->pos]])) {
                    if (is_string($this->char_map[$this->doc[$this->pos]])) {
                        return $this->token = $this->{$this->char_map[$this->doc[$this->pos]]}();
                    } else {
                        return $this->token = $this->char_map[$this->doc[$this->pos]];
                    }
                } else {
                    return $this->token = self::TOK_UNKNOWN;
                }
            } else {
                $this->parse_linebreak();
            }
        }
        return $this->token = self::TOK_NULL;
    }