Re: Grammar checking

[Ihor Radchenko]

Eli Zaretskii <eliz@gnu.org> writes:

>> There is this: https://github.com/mhayashi1120/Emacs-langtool
>> Demo: https://www.youtube.com/watch?v=QcFOqkLm00o
>
> Is the tool any good in practical use (as opposed to marketing-like
> presentations)?  Did someone try to use it in real use cases, like
> when writing significant amounts of prose, and if so, could those who
> did try that please share their experience and impressions?

I am using it in real-life scenarios for authoring.
LanguageTool the most sophisticated Libre grammar checker around, AFAIK.
It is not ideal and certainly miss various mistakes in comparison with
proprietary tools like Grammarly, but still much, much better than ispell
and other Libre grammar/style checkers I tried.

> We need in Emacs a free grammar checker that really is up to the job,
> not just any free program.  The result should be Emacs features that
> we can be proud of.

I am not 100% sure if LanguageTool is going to be useful universally.
While it is quite good and even allow extending itself with neural
network models, the performance is not great - even for smaller texts it
is taking a lot of CPU and requires 5-15s of seconds to check the amount
of text constituting my emails (mostly due to slow loading time though).
For larger texts, time scales up to 10s of seconds - minutes.

I usually use it similar to M-x ispell-buffer - for checking the
complete write-ups.

Also, extending LanguageTool may not be easy, unless using development
version. It has some strange design decisions - users cannot easily
supply custom local rules, AFAIK. (Or my google fu is not good enough)

That said, I had some success feeding buffer text to LanguageTool
asynchronously - paragraph by paragraph.

-- 
Ihor Radchenko // yantar92,
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