bug#81334: 32.0.50; fontifying buffers with many blocks is very slow

> On Jul 28, 2026, at 4:38 AM, Rahul Martim Juliato <[email protected]> wrote:
> 
> Yuan Fu <[email protected]> writes:
> 
>>> On Jul 25, 2026, at 10:40 PM, Eli Zaretskii <[email protected]> wrote:
>>> 
>>>> [...]
>>> 
>>> Which patch you think we should install?  Rahul posted 2 patches.
>> 
>> This one (see attached). I took liberty to edit some of the comments.
>> 
> 
> Both patches are needed: Yuan's new 'language-cache.patch' and the
> markdown-ts-mode change, which I'm re-attaching here as
> 'markdown-ts-mode-Make-inline-HTML-embed-local-bug-81334.patch'.
> 
> The latter is a one-liner on markdown-ts-mode.el, adding :local t to the
> html_tag range rule.
> 
> The two are complementary: the cache removes the parser-creation cost,
> and the :local t removes the O(N^2) non-local range update that remains
> once parser creation is cheap.
> 
> -- 
> Rahul Martim Juliato
> 
> <markdown-ts-mode-Make-inline-HTML-embed-local-bug-81334.patch>

That’s true, sorry, I thought we’ve switched to local parsers for markdown-ts-mode already. Both should be applied on master.

Yuan