Re: [GNU ELPA] New package: flymake-harper

>>> How do I act on Harper diagnostics?
>>> I see it can flag typos and grammar errors, and the diagnostic message
>>> text includes possible replacements, but how do I actually apply one of
>>> those suggestions?
>>>
>>> [ This is related to a general missing feature in Flymake, which I've
>>>   requested in bug#71504: allowing backends to provide fixes for
>>>   diagnostics, which users can then apply/accept.  Without such support,
>>>   I'm not sure Flymake is the best fit for spell/grammar checking. ]
>>
>> I think Flymake should use UI similar to Flyspell for fixing errors.
>
> Do you mean `ispell-word' specifically?  Perhaps it would be enough for
> simple analysis that just replaces a phrase, but for Flymake in general
> it seems like we should be more flexible and allow for more than just
> text replacements.

Flyspell provides a context menu for suggested replacements.
Also 'C-;' (flyspell-auto-correct-previous-word) auto-corrects
the word using the first of suggested replacements.

I have no idea what Flymake could do for auto-corrections.
Using the provided replacements looks too restricted
to spell-checking.  'flymake-harper' uses the command
"harper-cli lint" to get a list of errors.  But it seems
there is no option for auto-correction.

'harper-ls' has a code action for quick fixes that
suggests fixes for the selected error.  But integration
with eglot is more uncertain.  Only someone with
a wide overview of capabilities of many LSP servers
can find a common denominator for all auto-correction
tools because server capabilities differ wildly.
For example, some use "textDocument/formatting"
with 'eglot-format' for auto-corrections,
some provide auto-corrections for the whole project,
or for a separate file, or for one error kind, etc.