From c6465d65faf0808b2bc7226ca108322c19d75b41 Mon Sep 17 00:00:00 2001 From: Lars Ingebrigtsen Date: Tue, 22 Feb 2022 14:43:35 +0100 Subject: [PATCH] Don't signal an error on re-builder startup with rx syntax * lisp/emacs-lisp/re-builder.el (reb-initialize-buffer): Make startup with rx syntax not signal an error (bug#54107). --- lisp/emacs-lisp/re-builder.el | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lisp/emacs-lisp/re-builder.el b/lisp/emacs-lisp/re-builder.el index 38726ca048e..24770fac67f 100644 --- a/lisp/emacs-lisp/re-builder.el +++ b/lisp/emacs-lisp/re-builder.el @@ -323,7 +323,10 @@ Except for Lisp syntax this is the same as `reb-regexp'.") (reb-lisp-mode)) (t (reb-mode))) (reb-restart-font-lock) - (reb-do-update)) + ;; When using `rx' syntax, the initial syntax () is invalid. But + ;; don't signal an error in that case. + (ignore-errors + (reb-do-update))) (defun reb-mode-buffer-p () "Return non-nil if the current buffer is a RE Builder buffer." -- 2.39.5