1 files changed, 61 insertions, 0 deletions
diff --git a/www/wiki/extensions/AbuseFilter/includes/parser/AFPToken.php b/www/wiki/extensions/AbuseFilter/includes/parser/AFPToken.php
new file mode 100644
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+++ b/www/wiki/extensions/AbuseFilter/includes/parser/AFPToken.php
@@ -0,0 +1,61 @@
+<?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 - :=
+ * * Conditionls (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)
+ * * ListElement (LE) - list[number]
+ * * Braces (B) - ( and )
+ * * Functions (F)
+ * * Atom (A) - return value
+ */
+class AFPToken {
+	// Types of tken
+	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;
+
+	public function __construct( $type = self::TNONE, $value = null, $pos = 0 ) {
+		$this->type = $type;
+		$this->value = $value;
+		$this->pos = $pos;
+	}
+}