Re: Explain a bit more on how to configure language server in Eglot's manual

[Juri Linkov]

>     > Orthogonal to Augusto’s function, but I think something like this
>     > would be nice: a function that pops up a buffer and enters recursive
>     > edit for arbitrary input and edit, and when you hit C-c C-c, it
>     > returns the buffer content, kind of like Magit’s commit buffer. Plus
>     > buffer content validator (eg, validate JSON), and arbitrary major
>     > modes in the buffer, etc.
>
>     This sounds like a generally useful thing for Emacs.  There should be a
>     version without recursive edit which calls a callback function when
>     quitting.
>
> Of course, that won't work as a drop-in replacement for the read-* family
> that uses the minibuffer.

string-edit provides callback args, and
read-string-from-buffer uses recursive-edit
in these callbacks.