GNU bug report logs - #21871
Emacs Lisp Mode (at least): spurious parens in column 0 don't get bold red highlighting.

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From: Noam Postavsky <npostavs <at> gmail.com>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 21871 <at> debbugs.gnu.org
Subject: bug#21871: Emacs Lisp Mode (at least): spurious parens in column 0 don't get bold red highlighting.
Date: Sat, 11 Apr 2020 11:00:35 -0400

[Message part 1 (text/plain, inline)]

Alan Mackenzie <acm <at> muc.de> writes:

> In the Emacs manual page "Left Margin Paren", it says that:
>
>    To help you catch violations of this convention, Font Lock mode
>    highlights confusing opening delimiters (those that ought to be quoted)
>    in bold red.
>
> , where "this convention" is the convention of not putting opening parens
> in column 0 when they aren't at the beginning of defuns.
>
> In Emacs Lisp Mode, this highlighting isn't done.  It isn't in CC Mode,
> either.

The recent thread in emacs-devel[1] reminded me I wrote a (still
half-baked) patch for this.

[1]: https://lists.gnu.org/r/emacs-devel/2020-04/msg00402.html

[0001-WIP-Restore-highlighting-of-open-parens-in-column-0-.patch (text/plain, attachment)]

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