Re: How to reliably edit a file from within Emacs Lisp and return a string?

[Noam Postavsky]

On Thu, 22 Aug 2019 at 17:31, Jean Louis <bugs@gnu.support> wrote:
> killing the buffer is also not
> conclusive for Emacs Lisp,

Why do you say that?

> basically from within Emacs Lisp, how can I
> know that find-file has finished its job, that buffer has been closed,
> so that I can read the string?

find-file finishes as soon as the buffer is opened. It sounds like you
want to know when the user is finished with the file; the user has to
tell you somehow (e.g., by killing the buffer).