Re: Using incremental parsing in Emacs

[Dmitry Gutov]

On 04.01.2020 15:30, arthur miller wrote:

> Do it in a thread and display file originally without syntax coloring,
> and then gradually display results as the tree-sitter thread work it's
> way?

Syntax info is needed not only for coloring, and often on-demand. So a 
synchronous API will be needed.

> Maybe start with displayed portion of the file only. Then since
> tree-sitter accepts changes as fine-grained as on character level, send
> new lines for syntax colouring as they are scrolled upp or down.

Like Eli said, see how JIT-lock works. If tree-sitter can support this 
usage, very good.

> Or other strategy could be to have tree-sitter thread highlight the
> visible portion of the file and to continue to work with non-visible
> part of the buffer in background?

That seems kinda wasteful.