Re: Standardizing tree-sitter fontification features

[Randy Taylor]

On Friday, November 25th, 2022 at 01:15, Yuan Fu <casouri@gmail.com> wrote:

> 
> > On Nov 24, 2022, at 5:13 PM, Randy Taylor dev@rjt.dev wrote:
> > 
> 
> > I wonder if assignment and definition are really worth having (and would 
> > prefer to do without them), since they should be covered by the variable, 
> > function, type and property features.
> 
> 
> They are definitely useful. They are the things we currently highlight, and 
> for a reason. Personally I only want to highlight identifiers in definition 
> and assignment, not every occurrence of them. Since so much of a program 
> consists of variable and function identifiers, highlighting all of them looks 
> almost like highlighting everything. I just want some visual cues on the 
> program structure, not programming in skittles :-)

Fair enough. In that case, are we going to end up with duplication in the 
variable and function features? So long as I can program in skittles, I am 
happy :).

> 
> > I would also add:
> > - misc-punctuation, for anything not considered a delimiter or bracket. 
> > Most modes would use this for any special punctuation they've got.
> 
> 
> Is there any examples? Maybe just merge delimiter and punctuation together?
>

Yes, see sh-script.el. $ is used for misc-punctuation. neovim and the Emacs 
dynamic module tree-sitter implementation have more examples (they call it 
special punctuation).

I think we should keep them all separate.
 
> > - (maybe) literal instead of number? That way there is a group for chars 
> > too (and any other literals if there are any?). Or a char feature in 
> > addition to the existing number one. I'm undecided...
> 
> 
> Literal seems to encompass numbers, strings, chars, and constants. So I don’t 
> know how does it fit. We could add char to string feature.
> 

Sounds good. I think I've seen char also end up in constant in some of our 
tree-sitter modes. Doesn't matter to me where it goes.

> > Maybe a slight tangent but I also suggest we alphabetize all of these; both 
> > the queries and the list of features. I'll send a patch to do that myself 
> > once things cool down a bit. Although anything that overrides will need to 
> > go at the bottom to make sure it gets applied.
> 
> 
> Good idea :-) A tangent of your tangent: how did you alphabetize them? Did 
> you use the sort-word package on EmacsWiki?
> 
> Yuan

Manually ;) (except for the keyword and such lists, those I use the built-in 
sort-lines on). I really like saying the alphabet over and over.