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bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_T
From: |
Yuan Fu |
Subject: |
bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE |
Date: |
Wed, 26 Apr 2023 15:19:01 -0700 |
> On Apr 23, 2023, at 2:04 PM, Dmitry Gutov <dmitry@gutov.dev> wrote:
>
> On 23/04/2023 03:28, Yuan Fu wrote:
>> What do you think of extending the parser to support these macros instead?
>> (So we fork tree-sitter-c.) If we can fix the parser, we don’t need to
>> retrofit hacks onto font-lock, indent, etc, separately, and it truly fixes
>> the problem. The downside is compiling from grammar source to grammar.c
>> needs rust and node tools. But I guess depending on the grammar maintained
>> by tree-sitter’s author isn’t too much different from depending on the
>> grammar maintained by another individual (ie, me)?
>
> We had also talked at some point about replacing the actual text that the
> parser sees with something else.
>
> If this can be done in a straightforward way (with tracking the subsequent
> correspondence of "real" text back to the buffer for syntax highlighting),
> that might be the perfect solution: we'd have a defcustom which would hold a
> list of macros used in the current codebase in the form of templates, and
> we'd set a bunch of them in emacs/.dir-locals.el.
>
> I'm not sure how difficult this is to implement and maintain, but it's
> probably going to be less work to maintain than a fork of the grammar.
Sounds to me a bit difficult to write. Eg, translating between tree-sitter
position and buffer position efficiently isn’t too easy. Now plus narrowing,
and what if the narrowing boundary is in the middle of a replace region?
My idea right now is to use the range feature in tree-sitter. Since the “body”
of FOR_EACH_TAIL is valid C, I can either set the ranges for the parser so it
ignores FOR_EACH_TAIL, or I can add another parser that only parses the body of
FOR_EACH_TAIL.
Yuan
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Eli Zaretskii, 2023/04/19
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Yuan Fu, 2023/04/21
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Eli Zaretskii, 2023/04/22
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Dmitry Gutov, 2023/04/23
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE,
Yuan Fu <=
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Yuan Fu, 2023/04/26
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Eli Zaretskii, 2023/04/27
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Yuan Fu, 2023/04/27
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Eli Zaretskii, 2023/04/28
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Yuan Fu, 2023/04/29
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Eli Zaretskii, 2023/04/30
- bug#62951: 29.0.90; c-ts-mode: Incorrect fontification due to FOR_EACH_TAIL_SAFE, Dmitry Gutov, 2023/04/27