From: Yuan Fu <casouri@gmail.com>
To: Augusto Stoffel <arstoffel@gmail.com>
Cc: Matthias Meulien <orontee@gmail.com>,
Eli Zaretskii <eliz@gnu.org>,
emacs-devel@gnu.org
Subject: Re: Tree-sitter integration in python.el
Date: Sat, 8 Oct 2022 14:06:47 -0700 [thread overview]
Message-ID: <9D398D49-0CA3-4CBA-9820-728E4A6C9568@gmail.com> (raw)
In-Reply-To: <875ygu91z4.fsf@gmail.com>
> On Oct 8, 2022, at 1:03 AM, Augusto Stoffel <arstoffel@gmail.com> wrote:
>
> On Fri, 7 Oct 2022 at 15:10, Yuan Fu wrote:
>
>>> On Oct 7, 2022, at 3:03 AM, Augusto Stoffel <arstoffel@gmail.com> wrote:
>>>
>>> On Fri, 7 Oct 2022 at 01:25, Yuan Fu wrote:
>>>
>>>> Yeah, with tree-sitter, fortifying types is trivial. In fact all types
>>>> should be fortified already. (I tested with some simple examples.)
>>>> Should we provide some variables to toggle fontification for different
>>>> things? Like python-fontify-type/f-string/assignment/built-in/etc.
>>>
>>> Looking at the screenshots posted a few messages back, which are VERY
>>> busy, I would really appreciate an option to disable a few fontification
>>> rules or, conversely, disable all but a few of them. Ideally, this
>>> should be done through a generic mechanism that works across major
>>> modes.
>>>
>>> Have you seen the new `font-lock-ignore' option? Tree-sitter could
>>> provide something similar (and much better/less hacky).
>>
>> The complaint for font-lock-maximum-decoration is that it’s obscure
>> and too corse-grained.
>
> To me, the biggest problem with font-lock-maximum-decoration is that few
> major modes bothered to implement levels.
That’s their choice. If no one complains it’s not a problem ;-)
>
>> So my idea is for each major mode to provide fined-grained controls
>> like python-fontify-type/f-string/assignment/built-in/etc. And
>> tree-sitter makes it easy to implement this kind of toggle.
>
> Given the lack of success of font-lock-maximum-decoration, I don't see
> this being implemented by many major modes. Also, if the idea does take
> traction, it will lead to a proliferation of user options that is hard
> to use effectively -- if someone doesn't want to fontify built-ins in
> Python, they probably don't want it in other languages either, so they
> need to set a similar option for N languages.
It sounds nice, but (1) such generalization breaks down for not-c-like-general-programming-languages, like html, css, texinfo, etc, and (2) maybe one wants builtins in C but not in Python.
>
>> But I guess a global control is also nice, I can make tree-sitter
>> respect font-lock-maximum-decoration, in addition to the fined grained
>> local-control.
>>
>> Since we are designing a new system, I don’t think we need to resort
>> to the likes of font-lock-ignore.
>
> It's exactly the opposite: since you are designing a new systems, you
> can create a much nicer customization mechanism on the lines of
> font-lock-ignore. For instance, one could select fontification rules
> based on the affected node type.
>
> The “decoration levels” feature can then build up on this, with the
> advantage that it would be consistent across languages and require no
> extra effort from the major mode developer.
It’s a nice idea, but in tree-sitter, different languages tag differently, it could be “function_definition” in python but “function_declaration” in C, etc. So it is not consistent across language. Also, it is often more complicated than a single tag like “function_identifier”, but rather a nested structure like (function_definition (identifier)).
Yuan
next prev parent reply other threads:[~2022-10-08 21:06 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-22 18:42 Tree-sitter integration in python.el Yuan Fu
2022-09-26 19:10 ` Jostein Kjønigsen
2022-09-27 22:16 ` Yuan Fu
2022-10-03 18:07 ` Matthias Meulien
2022-10-03 18:38 ` Eli Zaretskii
2022-10-03 22:19 ` Matthias Meulien
2022-10-03 22:31 ` Yuan Fu
2022-10-03 22:47 ` Matthias Meulien
2022-10-06 2:56 ` Yuan Fu
2022-10-06 7:18 ` Matthias Meulien
2022-10-06 18:26 ` Yuan Fu
2022-10-06 20:53 ` Matthias Meulien
2022-10-07 8:25 ` Yuan Fu
2022-10-07 10:03 ` Augusto Stoffel
2022-10-07 17:53 ` chad
2022-10-07 19:09 ` Eli Zaretskii
2022-10-07 22:17 ` Yuan Fu
2022-10-07 22:10 ` Yuan Fu
2022-10-08 6:30 ` Eli Zaretskii
2022-10-08 20:57 ` Yuan Fu
2022-10-09 4:13 ` Eli Zaretskii
2022-10-11 22:15 ` Stefan Monnier
2022-10-12 5:04 ` Yuan Fu
2022-10-12 17:52 ` Stefan Monnier
2022-10-12 22:55 ` Yuan Fu
2022-10-12 23:43 ` Yuan Fu
2022-10-13 0:16 ` [SPAM UNSURE] " Stephen Leake
2022-10-13 5:55 ` Eli Zaretskii
2022-10-15 23:15 ` Yuan Fu
2022-10-08 8:03 ` Augusto Stoffel
2022-10-08 16:20 ` [External] : " Drew Adams
2022-10-10 15:38 ` Augusto Stoffel
2022-10-08 21:06 ` Yuan Fu [this message]
2022-10-10 7:16 ` Augusto Stoffel
2022-10-10 15:10 ` Yuan Fu
2022-10-10 15:53 ` Augusto Stoffel
2022-10-12 5:08 ` Yuan Fu
2022-10-11 22:18 ` Stefan Monnier
2022-10-04 6:13 ` Eli Zaretskii
2022-10-04 11:21 ` Matthias Meulien
2022-10-04 12:33 ` Eli Zaretskii
2022-10-04 17:11 ` Matthias Meulien
2022-10-03 22:25 ` Yuan Fu
2022-10-16 7:31 ` Eli Zaretskii
2022-10-16 8:15 ` Yuan Fu
2022-10-16 8:18 ` Eli Zaretskii
2022-10-03 22:35 ` Matthias Meulien
-- strict thread matches above, loose matches on Subject: below --
2022-10-03 21:53 lkg.ch@pm.me
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