GNU bug report logs - #21644
24.4; completing-read acts differently on functional collection

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Package: emacs;

Reported by: "Ryan C. Thompson" <rct <at> thompsonclan.org>

Date: Wed, 7 Oct 2015 22:57:01 UTC

Severity: normal

Found in version 24.4

Done: Dmitry Gutov <dgutov <at> yandex.ru>

Bug is archived. No further changes may be made.

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Drew Adams <drew.adams <at> oracle.com>, "Ryan C. Thompson" <rct <at> thompsonclan.org>, Oleh Krehel <ohwoeowho <at> gmail.com>
Cc: 21644 <at> debbugs.gnu.org
Subject: bug#21644: 24.4; completing-read acts differently on functional collection
Date: Thu, 15 Oct 2015 18:24:31 +0300

On 10/15/2015 06:01 PM, Drew Adams wrote:

> Yes and no, IMO.  `Basic Completion' certainly provides
> some information about "completion, COLLECTION, and
> PREDICATE."  But for 3 other functions, not explicitly
> for `completing-read' - it is not even mentioned there.

What's not mentioned? Basic Completion mentions the three key functions.

> As was suggested earlier (see above), node `Programmed
> Completion' is where we should send someone for information
> about a function-valued COLLECTION argument.

Basic Completion references Programmed Completion, twice.

On the other hand, Programmed Completion assumes that the collection is 
a function from the outset. This is not necessarily true in completing-read.
This bug report was last modified 9 years and 220 days ago.

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