<?php /* ** Zabbix ** Copyright (C) 2001-2022 Zabbix SIA ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program 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 ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. **/ /** * A parser for reference macros like \0-\9. */ class CReplacementParser extends CParser { /** * @param string $source * @param int $pos * * @return int */ public function parse($source, $pos = 0) { $this->length = 0; $this->match = ''; $p = $pos; if (!isset($source[$p]) || $source[$p] !== '\\') { return CParser::PARSE_FAIL; } $p++; if (!isset($source[$p]) || !ctype_digit($source[$p])) { return CParser::PARSE_FAIL; } $p++; $this->length = $p - $pos; $this->match = substr($source, $pos, $this->length); return (isset($source[$pos + $this->length]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS); } }