From 82da9bd4f28cd2a050222173d6429478bed5b3cb Mon Sep 17 00:00:00 2001
From: Michael Davis <mcarsondavis@gmail.com>
Date: Tue, 17 May 2022 14:38:34 -0500
Subject: [PATCH] update Erlang grammar and queries

The update to the grammar itself covers the case where the document
is a single expression without a trailing newline such as "min(A, B)".
A small change to the parser now parses these expressions correctly
which improves the display of the function head in the signature
help popup.

The update to the queries marks 'andalso', 'orelse', 'not', etc. as
`@keyword.operator` which improves the look - it looks odd to see
operators that are words highlighted the same as tokens like '->'
or '=:='.
---
 languages.toml                        | 2 +-
 runtime/queries/erlang/highlights.scm | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/languages.toml b/languages.toml
index b1984fb52cdd..e2bf26bf41c8 100644
--- a/languages.toml
+++ b/languages.toml
@@ -1049,7 +1049,7 @@ language-server = { command = "erlang_ls" }
 
 [[grammar]]
 name = "erlang"
-source = { git = "https://github.com/the-mikedavis/tree-sitter-erlang", rev = "3f611cfdc790214c3f9f9cf1658b3ae8039c54b8" }
+source = { git = "https://github.com/the-mikedavis/tree-sitter-erlang", rev = "6cd8f956ada445b277de1581b5328ae8e8be9aac" }
 
 [[language]]
 name = "kotlin"
diff --git a/runtime/queries/erlang/highlights.scm b/runtime/queries/erlang/highlights.scm
index 1e0753497969..bea3871a683b 100644
--- a/runtime/queries/erlang/highlights.scm
+++ b/runtime/queries/erlang/highlights.scm
@@ -85,6 +85,11 @@
   operator: "/"
   right: (integer) @constant.numeric.integer)
 
+((binary_operator operator: _ @keyword.operator)
+ (#match? @keyword.operator "^\\w+$"))
+((unary_operator operator: _ @keyword.operator)
+ (#match? @keyword.operator "^\\w+$"))
+
 (binary_operator operator: _ @operator)
 (unary_operator operator: _ @operator)
 ["/" ":" "#" "->"] @operator