Re: insert string at point with emacs-version

[inasprecali]

goncholden via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> I am looking up documentation for emacs-version. But cannot understand the 
> meaning of
>
> If optional argument HERE is non-nil, insert string at point.
>
> --------
> Doc:
>
> (emacs-version &optional HERE)
>
> Probably introduced at or before Emacs version 19.20.
>
> Return string describing the version of Emacs that is running.
> If optional argument HERE is non-nil, insert string at point.

In Emacs jargon, "point" means something like "the current cursor
position".  Try executing (emacs-version nil) and (emacs-version t)
in a scratch buffer and see for yourself (C-x C-e runs the
command eval-last-sexp, which you may find useful for this).

When ARG is not provided or nil, emacs-version returns a string
describing your current Emacs version as a value, if ARG is not
NIL, emacs-version returns NIL and inserts said string wherever
the cursor is currently located (that is, it inserts it at point).