Re: Turning on/off tree-sitter modes

[Dmitry Gutov]

On 04/12/2024 14:56, Eli Zaretskii wrote:
> > Take for example rust-ts-mode, or dockerfile-ts-mode: the body of the
> > major mode function is wrapped in
> >
> >     (when (treesit-ready-p 'dockerfile)
> >        ...
> >       )
> >
> > which checks for the grammar, emits the warning and does nothing
> > otherwise. So dockerfile-ts-mode behaves like prog-mode in this case,
> > even highlighting strings using the default syntax table.
> That's another possibility, indeed.  Its downside is that each mode
> author will need to include this boilerplate code.

That's what we recommend already, see the examples in 
doc/lispref/parsing.texi or admin/notes/tree-sitter/starter-guide.

And all the existing ts modes do this, AFAICS.