From d8e03d5d5ae1fbf3bd878151e4b5613445a0b726 Mon Sep 17 00:00:00 2001
From: Stefan VanBuren <stefan@vanburen.xyz>
Date: Fri, 6 Mar 2026 15:21:54 -0500
Subject: [PATCH] fix(treesitter): escape hyphen in lua pattern

Ref: https://github.com/neovim/neovim/pull/38140#discussion_r2897235978
---
 runtime/lua/vim/treesitter/languagetree.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/lua/vim/treesitter/languagetree.lua b/runtime/lua/vim/treesitter/languagetree.lua
index 1fd174c9b3..4da4ea3ee1 100644
--- a/runtime/lua/vim/treesitter/languagetree.lua
+++ b/runtime/lua/vim/treesitter/languagetree.lua
@@ -1023,7 +1023,7 @@ end)
 ---@return string? # resolved parser name
 local function resolve_lang(alias)
   -- normalize: treesitter language names are always lower case and use underscores
-  alias = alias and alias:lower():gsub('-', '_')
+  alias = alias and alias:lower():gsub('%-', '_')
   -- validate that `alias` is a legal language
   if not (alias and alias:match('[%w_]+') == alias) then
     return