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bug#9115: 24.0.50; `documentation' should not return args list for CL de

From: Thierry Volpiatto
Subject: bug#9115: 24.0.50; `documentation' should not return args list for CL defun*.
Date: Wed, 03 Aug 2011 07:10:04 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

Stefan Monnier <address@hidden> writes:

>>>>> (let ((doc (documentation bidule)))
>>>>> (or (cdr (help-split-fundoc doc nil)) doc))
>>>>> I agree this is not super convenient.
>>>> Yes, i think i have tried that, but it doesn't return nil for the case
>>>> of CL-style functions.
>>> In Emacs-24, it returns nil if the function had no docstring (the CL or
>>> non-CL distinction is a only indirectly linked to the problem).  So the
>>> above should return either:
>>> - the full docstring if there's one.
>>> - nil or the empty string or "Not documented" if there isn't any
>>> docstring.
>> No, it doesn't, it return for example for: (I use emacs24)
> Oh, you're right:
>   (let* ((doc (documentation bidule))
>          (split (help-split-fundoc doc nil)))
>     (if split (cdr split) doc))
Yes, thanks, that's usable.
But it add unnecessary complications for same result, so for the moment
i will use my original code that is simpler and shorter.

> might work better.  Still, you should be able to get the right code by
> reading the docstring and trying things out.
Docstring is hard to understand.
The term "usage" in docstring is not understandable until trying out the
function and see results after evaluation.
Idem for "def" argument.

Thanks for helping on that.

A+ Thierry
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