Re: Standardizing tree-sitter fontification features

[Yuan Fu <casouri@gmail.com>]

[Addint emacs-devel back]

> On Nov 25, 2022, at 3:20 AM, Mattias Engdegård <mattias.engdegard@gmail.com> wrote:
> 
>> Right now we have:
> [...]
>> comment
> 
> What about treating doc-comments as a separate case?
> (May also want to fontify various parts inside, such as doc mark-up elements.)

That makes me wonder what should we do with string & docstrings & string-interpolation. Should we make them all separate features, or put them all in a single “string” feature, or have some major mode variable to turn things on/off?

My thoughts:
- docstring is pretty standard for a given language, so they can probably enabled by default and be part of the string feature.
- string interpolation could be part of string feature, but since “string” feature is enabled at pretty low fontification level, I decided to make it separate, and only enabled it in higher fontification levels.
- doc-comment seems rather non-standards, and could even be different from project to project. So I tend to think it should be turned on/off by a major mode variable in major modes that support this feature. And user can enable/disable it with dir-local or file-local variables.

> 
> Otherwise I mostly agree with the proposal but fear that it may result in an overly busy scheme. Colour only really helps when it helps highlighting structure, not contents.

I agree, that’s why we don’t enable all the features by default. The default fontification should be pretty sane (IMO).

Yuan