From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: dev@rjt.dev, casouri@gmail.com, aqua0210@foxmail.com,
59498@debbugs.gnu.org, mardani29@yahoo.es
Subject: bug#59498: 29.0.50; c++-ts-mode get wrong-type-argument error when enabled
Date: Sun, 27 Nov 2022 09:24:57 +0200 [thread overview]
Message-ID: <837czgrh9y.fsf@gnu.org> (raw)
In-Reply-To: <jwvsfi4hnzi.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Sun, 27 Nov 2022 02:18:06 -0500)
> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Yuan Fu <casouri@gmail.com>, dev@rjt.dev, aqua0210@foxmail.com,
> 59498@debbugs.gnu.org, mardani29@yahoo.es
> Date: Sun, 27 Nov 2022 02:18:06 -0500
>
> >> I added treesit-comment-start/end to help indenting comments. So this is
> >> the correct way to use them. The following comment explains why I created
> >> new variables:
> >>
> >> ;; `comment-start' and `comment-end' assume there is only one type of
> >> ;; comment, and that the comment spans only one line. So they are not
> >> ;; sufficient for our purpose.
> >
> > ??? This is surprisingly unclean, IMO. For starters, the names of the
> > variables are confusing. The need to define two sets of comment-start and
> > comment-end regexps is also a nuisance and a source of errors.
> >
> > How do non-treesit modes handle this issue? Why do the treesit-based modes
> > need something special here?
> >
> > Stefan, any ideas?
>
> `comment-start` and `comment-end` do not describe the set of possible
> comment delimiters. They describe the comment delimiters that should be
> *inserted* when we do things like `comment-dwim`.
>
> To find/match comment delimiters we have `comment-start-skip` and
> `comment-end-skip`. They're not ideal, but they've been good enough so far.
> They don't say which comment starter matches which comment-ender (that
> was done by the syntax-tables), but tree-sitter should be able to tell
> us that when we need it.
>
> It would be nice if we could avoid the need to set/use
> `comment-start-skip` and `comment-end-skip` when using tree-sitter.
> Maybe we can compute their values from the tree-sitter grammar.
> But getting rid of uses of those vars will take a fair bit more work,
> I think.
OK, but do you agree that adding yet another pair of variables,
treesit-comment-start/end, is the opposite of what we want?
next prev parent reply other threads:[~2022-11-27 7:24 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 2:24 bug#59498: 29.0.50; c++-ts-mode get wrong-type-argument error when enabled Eason Huang
2022-11-23 8:44 ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-11-23 10:53 ` Eason Huang
2022-11-24 14:39 ` Randy Taylor
2022-11-25 12:56 ` Eason Huang
2022-11-26 11:18 ` Eli Zaretskii
2022-11-26 22:11 ` Yuan Fu
2022-11-27 6:24 ` Eli Zaretskii
2022-11-27 7:18 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-11-27 7:24 ` Eli Zaretskii [this message]
2022-11-27 22:21 ` Yuan Fu
2022-11-28 0:24 ` Stefan Kangas
2022-12-18 9:57 ` Eli Zaretskii
2022-12-18 22:49 ` Yuan Fu
2022-12-19 13:51 ` Eli Zaretskii
2022-12-20 1:56 ` Yuan Fu
2022-12-20 15:18 ` Eli Zaretskii
2022-12-21 0:37 ` Yuan Fu
2022-11-28 13:59 ` Eason Huang
2022-11-27 22:00 ` Yuan Fu
[not found] <m24juq9zn6.fsf@foxmail.com>
2022-11-30 21:33 ` Yuan Fu
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