<?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 LLD macros. */ class CLLDMacroParser 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]) || $source[$p] !== '#') { return CParser::PARSE_FAIL; } $p++; for (; isset($source[$p]) && $this->isMacroChar($source[$p]); $p++) { } if ($p == $pos + 2 || !isset($source[$p]) || $source[$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); } /** * Returns true if the char is allowed in the macro, false otherwise * * @param string $c * * @return bool */ private function isMacroChar($c) { return (($c >= 'A' && $c <= 'Z') || $c == '.' || $c == '_' || ($c >= '0' && $c <= '9')); } }