GNU bug report logs - #66224
[PATCH] Add optional PREDICATE argument to read-directory-name

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: Joseph Turner <joseph <at> breatheoutbreathe.in>
Cc: michael_heerdegen <at> web.de, philipk <at> posteo.net, 66224 <at> debbugs.gnu.org
Subject: bug#66224: [PATCH] Add optional PREDICATE argument to read-directory-name
Date: Sat, 13 Jan 2024 04:53:52 -0600

Joseph Turner <joseph <at> breatheoutbreathe.in> writes:

> Joseph Turner <joseph <at> breatheoutbreathe.in> writes:
>
>> Michael Heerdegen <michael_heerdegen <at> web.de> writes:
>>
>>> Joseph Turner via "Bug reports for GNU Emacs, the Swiss army knife of
>>> text editors" <bug-gnu-emacs <at> gnu.org> writes:
>>>
>>>> I'm not sure what you mean. In both of the following examples, PREDICATE
>>>> is used to narrow the completion candidates to only empty directories:
>>>>
>>>> (read-directory-name "Prompt: " "~/" nil t nil #'directory-empty-p)
>>>> (read-directory-name "Prompt: " "~/" nil nil nil #'directory-empty-p)
>>>
>>> In the second version also non-empty directories will be accepted.
>>
>> Yes, PREDICATE narrows the completion candidates but doesn't determine a
>> valid return value.
>
> Ping!  I'm happy to keep discussing this patch if others are interested.

Could you please send the latest version of your patch?

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