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112 lines
2.6 KiB
112 lines
2.6 KiB
<?php
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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/**
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* A parser for function macros like "{{ITEM.VALUE}.func()}".
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*/
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class CMacroFunctionParser extends CParser {
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/**
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* Parser for generic macros.
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*
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* @var CMacroParser
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*/
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private $macro_parser;
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/**
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* Parser for trigger functions.
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*
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* @var C10FunctionParser
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*/
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private $function_parser;
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/**
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* @param array $options Parser options.
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* @param array|bool $options['macros'] The list of macros, for example ['{ITEM.VALUE}', '{ITEM.LASTVALUE}']
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* @param int $options['ref_type'] Reference options.
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*/
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public function __construct(array $options) {
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$this->macro_parser = new CMacroParser($options);
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$this->function_parser = new C10FunctionParser();
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}
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/**
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* @param string $source
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* @param int $pos
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*
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* @return int
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*/
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public function parse($source, $pos = 0) {
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$this->length = 0;
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$this->match = '';
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$p = $pos;
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if (!isset($source[$p]) || $source[$p] !== '{') {
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return self::PARSE_FAIL;
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}
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$p++;
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if ($this->macro_parser->parse($source, $p) == CParser::PARSE_FAIL) {
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return self::PARSE_FAIL;
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}
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$p += $this->macro_parser->getLength();
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if (!isset($source[$p]) || $source[$p] !== '.') {
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return self::PARSE_FAIL;
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}
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$p++;
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if ($this->function_parser->parse($source, $p) == CParser::PARSE_FAIL) {
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return self::PARSE_FAIL;
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}
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$p += $this->function_parser->getLength();
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if (!isset($source[$p]) || $source[$p] !== '}') {
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return self::PARSE_FAIL;
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}
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$p++;
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$this->length = $p - $pos;
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$this->match = substr($source, $pos, $this->length);
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return (isset($source[$pos + $this->length]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS);
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}
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/**
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* Returns macro parser.
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*
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* @return string
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*/
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public function getMacroParser() {
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return $this->macro_parser;
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}
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/**
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* Returns function parser.
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*
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* @return string
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*/
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public function getFunctionParser() {
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return $this->function_parser;
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}
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}
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