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

[Eli Zaretskii]

> Date: Sat, 24 Aug 2019 19:37:11 +0200
> From: Jean Louis <bugs@gnu.support>
> Cc: GNU Emacs Help <help-gnu-emacs@gnu.org>
> 
> - use simple editing of buffer with kill-buffer-hook, if I can come
>   back to initial program execution, as program execution must be wait
>   for editing to finish, I do not know how

A command such as "M-x loop-continue" (possibly bound globally to some
key sequence) should be enough to resolve the "come back to initial
program execution" part.