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<?php
/*
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** 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 Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/
/**
* Class for storing the result returned by the trigger expression parser.
*/
class C10TriggerExprParserResult extends CParserResult {
const TOKEN_TYPE_OPEN_BRACE = 0;
const TOKEN_TYPE_CLOSE_BRACE = 1;
const TOKEN_TYPE_OPERATOR = 2;
const TOKEN_TYPE_NUMBER = 3;
const TOKEN_TYPE_FUNCTION_MACRO = 4;
const TOKEN_TYPE_MACRO = 5;
const TOKEN_TYPE_USER_MACRO = 6;
const TOKEN_TYPE_LLD_MACRO = 7;
const TOKEN_TYPE_STRING = 8;
const TOKEN_TYPE_FUNCTIONID_MACRO = 9;
const TOKEN_TYPE_FUNCTION = 10;
/**
* Array of expression tokens.
*
* Each token contains the following values:
* - type - token type
* - value - the token string itself
* - pos - position of the token in the source string
* - length - length of the token
* - data - an array containing additional information about the token
*
* The following "data" information can be available depending on the type of the token.
* For self::TOKEN_TYPE_FUNCTION_MACRO tokens:
* - host - host name
* - item - item key
* - function - the function string, e.g., "function(param1, param2)"
* - functionName - function name without parameters
* - functionParams - array of function parameters
* For self::TOKEN_TYPE_NUMBER tokens:
* - suffix - a time or byte suffix
*
* @var array
*/
protected $tokens = [];
/**
* Return the expression tokens.
*
* @see C10TriggerExprParserResult::$token for the structure of a token array
*
* @return array
*/
public function getTokens() {
return $this->tokens;
}
/**
* Add a token to the result.
*
* @param string $type token type
* @param string $value token string
* @param string $pos position of the token in the source string
* @param string $length length of the token
* @param array|null $data additional token information
*/
public function addToken($type, $value, $pos, $length, ?array $data = null) {
$this->tokens[] = [
'type' => $type,
'value' => $value,
'pos' => $pos,
'length' => $length,
'data' => $data
];
}
/**
* Returns all tokens of the given type.
*
* @param $type
*
* @return array
*/
public function getTokensByType($type) {
$result = [];
foreach ($this->tokens as $token) {
if ($token['type'] == $type) {
$result[] = $token;
}
}
return $result;
}
/**
* Check whether the expression contains at least one token of the given type.
*
* @param int $type
*
* @return bool
*/
public function hasTokenOfType($type) {
foreach ($this->tokens as $token) {
if ($token['type'] == $type) {
return true;
}
}
return false;
}
}
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