Re: Tree Sitter (was Re: cc-mode fontification feels random)

[Perry E. Metzger]

On 7/19/21 19:49, Stephen Leake wrote:
> "Perry E. Metzger" <perry@piermont.com> writes:
>
> > Apologies for not having been present for, er, the extensive previous
> > discussion on Tree Sitter. I discovered it looking at the archives.
> Ok.
>
> > I still believe that it would be a great thing to integrate into the
> > base of Emacs. The algorithms it employs are excellent, it's extremely
> > fast, and it handles the issues of real editors (like dealing with
> > partial code fragments and incrementally changing the parse on every
> > keystroke) very efficiently.
> +1.
>
> I'm working on adding incremental parse to wisi (and have been for
> almost a year now ...). I believe wisi has stronger error recovery than
> tree-sitter, which allows it to support indentation.


Tree sitter can reparse an entire file in a few milliseconds. This is 
almost impossible to achieve in elisp I suspect. Because of this, it can 
reparse on every keystroke, which is quite an astonishing thing.


Perry