Eli Zaretskii <eliz@gnu.org> writes:

>> From: Simon Pugnet <simon@polaris64.net>
>> Date: Sat, 26 Nov 2022 15:57:33 +0100
>> 
>> I've checked src/treesit.c and I can see that there is a 
>> `ts_tree_get_changed_ranges()' function, presumably from the 
>> underlying tree sitter library. However I don't think this is being 
>> exposed to elisp. Would it be possible to allow this information to 
>> be 
>> provided to elisp somehow?
>
> It's exposed to Lisp via the parser's after-change notifiers.  See
> treesit-parser-add-notifier.

Thank you; yes I can now see that `treesit-parser-add-notifier' should 
allow me to do what I need to do.

Kind regards,

-- 
Simon Pugnet
https://www.polaris64.net/