From 0ad7a333dc2b45f0ba658ea455284d086294a088 Mon Sep 17 00:00:00 2001
From: Daniel <kingdread@gmx.de>
Date: Tue, 21 Apr 2020 14:06:15 +0200
Subject: grammar: fix precendence rules

If we don't allow the higher-tier on the left side, we cannot chain
multiple or/and on the same level. Since or is associative, we shouldn't
expect the user to write (... or (... or ...)) and instead provide the
flattened version as well.
---
 src/fexpr/grammar.lalrpop | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/fexpr/grammar.lalrpop b/src/fexpr/grammar.lalrpop
index f559ff1..caaaf7f 100644
--- a/src/fexpr/grammar.lalrpop
+++ b/src/fexpr/grammar.lalrpop
@@ -28,18 +28,18 @@ PlayerFilter: Box<dyn filters::player::PlayerFilter> = {
 }
 
 Disjunction<T>: T = {
-    <a:Conjunction<T>> "or" <b:Conjunction<T>> => a | b,
+    <a:Disjunction<T>> "or" <b:Conjunction<T>> => a | b,
     Conjunction<T>,
 }
 
 Conjunction<T>: T = {
-    <a:Negation<T>> "and"? <b:Negation<T>> => a & b,
+    <a:Conjunction<T>> "and"? <b:Negation<T>> => a & b,
     Negation<T>,
 }
 
 Negation<T>: T = {
-    "not" <T> => ! <>,
-    "!" <T> => ! <>,
+    "not" <Negation<T>> => ! <>,
+    "!" <Negation<T>> => ! <>,
     T,
 }
 
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