From 877a020a6e0e90849fb40844e163b5bfba3bbe0e Mon Sep 17 00:00:00 2001
From: Yonas Habteab <yonas.habteab@icinga.com>
Date: Wed, 3 May 2023 12:14:15 +0200
Subject: [PATCH] Don't proceed `!=` as negate operator

---
 internal/filter/parser.peg | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/internal/filter/parser.peg b/internal/filter/parser.peg
index f6359a284..4f3c17132 100644
--- a/internal/filter/parser.peg
+++ b/internal/filter/parser.peg
@@ -228,10 +228,10 @@ ExistsExpr <- col:(Identifier !Operator !"(" / Identifier &EOF) {
 / Operator { // panics when the rule doesn't match
     return nil, nil
 }
-Negate <- ("!" &Operator / "!" &")" / "!" &[&|] / "!" &EOF) {
+Negate <- ("!" !"=" &Operator / "!" &")" / "!" &[&|] / "!" &EOF) {
     panic(fmt.Sprintf("unexpected negate operator %q at pos %d", string(c.text), c.pos.col))
 }
-/ "!"+ {
+/ "!"+ !"=" {
     ops := string(c.text)
     if len(ops) > 1 {
         panic(fmt.Sprintf("unexpected negate operators %q at pos %d", string(c.text), c.pos.col))