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RE : insert string at point with emacs-version
From: |
Drew Adams |
Subject: |
RE : insert string at point with emacs-version |
Date: |
Tue, 1 Feb 2022 17:49:19 +0000 |
> 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.
This is the doc string for Emacs 27.2 (the latest release):
Return string describing the version of Emacs that is running.
If optional argument HERE is non-nil, insert string at point.
Don’t use this function in programs to choose actions according
to the system configuration; look at ‘system-configuration’ instead.
But it's still a poor doc string. It should, first
of all, describe the interactive use. It should say:
With a prefix argument, insert string at point.
^^^^^^^^^^^^^^^^^^^^^^
Only after that interactive description should it
give the Emacs-Lisp description of argument HERE:
When called from Lisp, optional argument HERE
corresponds to the prefix argument.
Consider filing a (doc) bug report for this:
`M-x report-emacs-bug'.
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