mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/AbuseFilter.git
synced 2024-11-30 16:54:18 +00:00
cea1b0aec3
Remove unnecessary ones, make clear what the cryptic ones mean, and inline them when possible. Change-Id: I384859871a66ced8cb0d81260c06c5a5b278866f
66 lines
1.6 KiB
PHP
66 lines
1.6 KiB
PHP
<?php
|
|
/**
|
|
* Abuse filter parser.
|
|
* Copyright © Victor Vasiliev, 2008.
|
|
* Based on ideas by Andrew Garrett
|
|
* Distributed under GNU GPL v2 terms.
|
|
*
|
|
* Types of token:
|
|
* * T_NONE - special-purpose token
|
|
* * T_BRACE - ( or )
|
|
* * T_COMMA - ,
|
|
* * T_OP - operator like + or ^
|
|
* * T_NUMBER - number
|
|
* * T_STRING - string, in "" or ''
|
|
* * T_KEYWORD - keyword
|
|
* * T_ID - identifier
|
|
* * T_STATEMENT_SEPARATOR - ;
|
|
* * T_SQUARE_BRACKETS - [ or ]
|
|
*
|
|
* Levels of parsing:
|
|
* * Entry - catches unexpected characters
|
|
* * Semicolon - ;
|
|
* * Set - :=
|
|
* * Conditionals (IF) - if-then-else-end, cond ? a :b
|
|
* * BoolOps (BO) - &, |, ^
|
|
* * CompOps (CO) - ==, !=, ===, !==, >, <, >=, <=
|
|
* * SumRel (SR) - +, -
|
|
* * MulRel (MR) - *, /, %
|
|
* * Pow (P) - **
|
|
* * BoolNeg (BN) - ! operation
|
|
* * SpecialOperators (SO) - in and like
|
|
* * Unarys (U) - plus and minus in cases like -5 or -(2 * +2)
|
|
* * ArrayElement (AE) - array[number]
|
|
* * Braces (B) - ( and )
|
|
* * Functions (F)
|
|
* * Atom (A) - return value
|
|
*/
|
|
class AFPToken {
|
|
const TNONE = 'T_NONE';
|
|
const TID = 'T_ID';
|
|
const TKEYWORD = 'T_KEYWORD';
|
|
const TSTRING = 'T_STRING';
|
|
const TINT = 'T_INT';
|
|
const TFLOAT = 'T_FLOAT';
|
|
const TOP = 'T_OP';
|
|
const TBRACE = 'T_BRACE';
|
|
const TSQUAREBRACKET = 'T_SQUARE_BRACKET';
|
|
const TCOMMA = 'T_COMMA';
|
|
const TSTATEMENTSEPARATOR = 'T_STATEMENT_SEPARATOR';
|
|
|
|
public $type;
|
|
public $value;
|
|
public $pos;
|
|
|
|
/**
|
|
* @param string $type
|
|
* @param AFPToken|null $value
|
|
* @param int $pos
|
|
*/
|
|
public function __construct( $type = self::TNONE, $value = null, $pos = 0 ) {
|
|
$this->type = $type;
|
|
$this->value = $value;
|
|
$this->pos = $pos;
|
|
}
|
|
}
|