GNU bug report logs - #66187
read-file-name unexpected behavior when MUSTMATCH is a function

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: 66187 <at> debbugs.gnu.org
Cc: philipk <at> posteo.net, joseph <at> breatheoutbreathe.in
Subject: bug#66187: read-file-name unexpected behavior when MUSTMATCH is a function
Date: Thu, 05 Oct 2023 03:12:51 +0200

Joseph Turner via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

> My original expectations:
>
> - PREDICATE narrows the list of completion candidates
> - MUST-MATCH function determines whether to accept the input
> [...]

> > This is only about `read-file-name'
>
> Doesn't the unexpected behavior originate in completing-read?

If that's the behavioral aspect you mean, then yes, the meaning of the
arguments is analogue, and they are passed to `completing-read'.

Michael.

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