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

Hi Juri,

> 'harper-ls' has a code action for quick fixes that
> suggests fixes for the selected error.  But integration
> with eglot is more uncertain.

What do you mean?  Have you ever tried this particular one?  I use tons
of LS's (unfortunately, for debugging Eglot) and they largely work
consistently with `eglot-code-actions`.

> 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.

Do you really mean that?  For auto-correction specifically, the
denominator is usually, if not always, the 'codeActionProvider'
capability.  Code actions, to be precise, are how LSP associates
arbitrary changes to regions in a document.  It's a fairly narrow and
well understodd part of LSP (and Eglot).

There are, of course, LSP commands, and those are completely arbitrary
and some of them even interactive.  They makes a language server its own
"remote major mode", if you will.  You can "find other file" to go to
file related to this one or automatically run tests for example.  It's a
slightly more variable and unexplored world.  You may be also be
referring to out-of-band non-LSP extensions.  That is potentially a
"wild" place indeed.

> For example, some use "textDocument/formatting" with 'eglot-format'
> for auto-corrections,

Who?  What LS?  That entry point is strictly for non-semantic whitespace
changes.

> some provide auto-corrections for the whole project, or for a separate
> file, or for one error kind, etc.

Can you give examples of this?  Are you talking about LSP commands or
something else?

João