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129 lines
3.4 KiB
129 lines
3.4 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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* Class for storing the result returned by the trigger expression parser.
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*/
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class C10TriggerExprParserResult extends CParserResult {
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const TOKEN_TYPE_OPEN_BRACE = 0;
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const TOKEN_TYPE_CLOSE_BRACE = 1;
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const TOKEN_TYPE_OPERATOR = 2;
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const TOKEN_TYPE_NUMBER = 3;
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const TOKEN_TYPE_FUNCTION_MACRO = 4;
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const TOKEN_TYPE_MACRO = 5;
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const TOKEN_TYPE_USER_MACRO = 6;
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const TOKEN_TYPE_LLD_MACRO = 7;
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const TOKEN_TYPE_STRING = 8;
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const TOKEN_TYPE_FUNCTIONID_MACRO = 9;
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const TOKEN_TYPE_FUNCTION = 10;
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/**
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* Array of expression tokens.
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*
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* Each token contains the following values:
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* - type - token type
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* - value - the token string itself
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* - pos - position of the token in the source string
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* - length - length of the token
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* - data - an array containing additional information about the token
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*
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* The following "data" information can be available depending on the type of the token.
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* For self::TOKEN_TYPE_FUNCTION_MACRO tokens:
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* - host - host name
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* - item - item key
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* - function - the function string, e.g., "function(param1, param2)"
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* - functionName - function name without parameters
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* - functionParams - array of function parameters
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* For self::TOKEN_TYPE_NUMBER tokens:
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* - suffix - a time or byte suffix
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*
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* @var array
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*/
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protected $tokens = [];
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/**
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* Return the expression tokens.
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*
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* @see C10TriggerExprParserResult::$token for the structure of a token array
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*
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* @return array
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*/
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public function getTokens() {
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return $this->tokens;
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}
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/**
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* Add a token to the result.
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*
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* @param string $type token type
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* @param string $value token string
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* @param string $pos position of the token in the source string
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* @param string $length length of the token
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* @param array|null $data additional token information
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*/
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public function addToken($type, $value, $pos, $length, array $data = null) {
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$this->tokens[] = [
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'type' => $type,
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'value' => $value,
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'pos' => $pos,
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'length' => $length,
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'data' => $data
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];
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}
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/**
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* Returns all tokens of the given type.
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*
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* @param $type
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*
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* @return array
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*/
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public function getTokensByType($type) {
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$result = [];
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foreach ($this->tokens as $token) {
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if ($token['type'] == $type) {
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$result[] = $token;
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}
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}
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return $result;
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}
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/**
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* Check whether the expression contains at least one token of the given type.
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*
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* @param int $type
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*
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* @return bool
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*/
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public function hasTokenOfType($type) {
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foreach ($this->tokens as $token) {
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if ($token['type'] == $type) {
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return true;
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}
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}
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return false;
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}
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}
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