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bug#60012: 30.0.50; bug-reference-prog-mode: Error during redisplay with
From: |
Eli Zaretskii |
Subject: |
bug#60012: 30.0.50; bug-reference-prog-mode: Error during redisplay with tree-sitter modes |
Date: |
Mon, 12 Dec 2022 18:54:28 +0200 |
> From: Aleksandr Vityazev <avityazev@posteo.org>
> Date: Mon, 12 Dec 2022 16:38:10 +0000
>
> The error was discovered when I was watching
> https://github.com/zevlg/telega.el. I will add copies of the necessary
> files from there to reproduce the behavior.
>
> 1. mkidr ~/test-project
> 2. mv test-project
> 2. Add a .dir-locals.el file with the following content:
>
> --8<---------------cut here---------------start------------->8---
> ;;; Directory Local Variables
> ;;; For more information see (info "(emacs) Directory Variables")
>
> ((nil . ((bug-reference-url-format .
> "https://github.com/zevlg/telega.el/issues/%s")
> (bug-reference-bug-regexp
> .
> "<https?://\\(github)\\.com/zevlg/telega.el/issues/\\([0-9]+\\)>"))))
> --8<---------------cut here---------------end--------------->8---
>
> 3. Add Dockerfile file with the following content:
>
> --8<---------------cut here---------------start------------->8---
> FROM alpine:latest AS builder
> ARG tdlib_branch=master
> ARG telega_branch=master
> CMD ["/bin/bash"]
> --8<---------------cut here---------------end--------------->8---
>
> 4. with emacs -Q (add-hook 'prog-mode-hook 'bug-reference-prog-mode)
> 5. C-x C-f ~/test-project/Dockerfile
> 6. The file will be opened with dockerfile-ts-mode
> 7. See that syntax highlighting does not work
>
> At this time the following should be in the *Messages* buffer:
> Error during redisplay: (jit-lock-function 1) signaled (invalid-regexp
> "Unmatched ( or \\(")
>
> You can get the same if you add some C file and open it with c-ts-mode.
> If you open the file in normal c-mode. There are no such errors.
>
> I do not see any errors in the regular expression -
> "<https?://\\(github)\\.com/zevlg/telega.el/issues/\\([0-9]+\\)>".
The error is that the \( part before github is not matches by \).