GNU bug report logs - #70794
30.0.50; Add Rust compilation regex

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ergus <spacibba <at> aol.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; Add Rust compilation regex
Date: Mon, 06 May 2024 03:28:43 +0200

Hi:

Recently working with rust I have noticed that emacs does not recognizes
the rust/cargo error patterns.

Considering that emacs has now the rust-ts-mode, it may worth adding
the rust/cargo error patterns to compile when using that mode

In my system so far I have this:

```
(with-eval-after-load 'rust-ts-mode
  (with-eval-after-load 'compile
    (add-to-list
     'compilation-error-regexp-alist-alist
     `(cargo
       "\\(?:\\(?4:error\\)\\|\\(?5:warning\\)\\):[^\0]+?--> \\(?1:[^:]+\\):\\(?2:[[:digit:]]+\\):\\(?3:[[:digit:]]+\\)"
       1 2 3 (5)
       nil
       (5 compilation-warning-face)
       (4 compilation-error-face)))

    (add-to-list 'compilation-error-regexp-alist 'cargo)))

```

Maybe a more frequent rust user has a more general regex to
recommend. But this one works for me.

WDYT?

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