From: Liam Hupfer <liam@hpfr.net>
Date: Thu, 26 Jun 2025 03:47:34 +0000 (-0500)
Subject: bug#78901: [PATCH] js-ts-mode: Fix auto-mode-alist regexp
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=815c59dacdd6c71efcf23c824d263f8636a8c90b;p=emacs.git

bug#78901: [PATCH] js-ts-mode: Fix auto-mode-alist regexp

Align the js-ts-mode entry with the javascript-mode entries in the
default auto-mode-alist value in lisp/files.el. Otherwise, js-ts-mode is
not associated with .js files.

* lisp/progmodes/js.el (js-ts-mode): Fix auto-mode-alist regexp.

Fixes: 2023-01-20 6b2f85caa6ca "Make tree-sitter based modes optional"
(cherry picked from commit 6299eb0fe54c87bcbb0f6ab4de3e4f9e250d4586)
---

diff --git a/lisp/progmodes/js.el b/lisp/progmodes/js.el
index ec7c2602d33..d96e3ada49a 100644
--- a/lisp/progmodes/js.el
+++ b/lisp/progmodes/js.el
@@ -4103,7 +4103,7 @@ See `treesit-thing-settings' for more information.")
     (treesit-major-mode-setup)
 
     (add-to-list 'auto-mode-alist
-                 '("\\(\\.js[mx]\\|\\.har\\)\\'" . js-ts-mode))))
+                 '("\\(\\.js[mx]?\\|\\.har\\)\\'" . js-ts-mode))))
 
 (derived-mode-add-parents 'js-ts-mode '(js-mode))