GNU bug report logs - #30072
27.0.50; completing-read-multiple chokes on list of default values

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Juri Linkov <juri <at> linkov.net>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#30072: closed (27.0.50; completing-read-multiple chokes on
 list of default values)
Date: Thu, 12 Apr 2018 20:39:02 +0000

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Your message dated Thu, 12 Apr 2018 23:37:17 +0300
with message-id <87fu40noua.fsf <at> mail.linkov.net>
and subject line Re: bug#30072: 27.0.50; completing-read-multiple chokes on list of default values
has caused the debbugs.gnu.org bug report #30072,
regarding 27.0.50; completing-read-multiple chokes on list of default values
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
30072: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30072
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; completing-read-multiple chokes on list of default values
Date: Wed, 10 Jan 2018 21:37:51 +0000

[0001-Support-list-of-default-values-in-completing-read-mu.patch (text/x-diff, attachment)]

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Steps to reproduce:

1) emacs -Q
2) Evaluate the following form:

   (let ((l '("a" "b")))
     (completing-read-multiple "" l nil nil nil nil l))

3) C-m

I expect this to result in the string "a", as is the case when
completing-read-multiple is replaced with completing-read in step 2,
given the following excerpt from the docstring of c-r-m:

  The arguments are the same as those of `completing-read'.

Instead, the following error is signalled:

Debugger entered--Lisp error: (wrong-type-argument stringp ("a" "b"))
  string-match("[ \011]*,[ \011]*" ("a" "b") 0)
  split-string(("a" "b") "[ \011]*,[ \011]*" t)
  completing-read-multiple("" ("a" "b") nil nil nil nil ("a" "b"))

I attach a fix which follows the implementation of
completing-read-default.

Thanks,

-- 
Basil

In GNU Emacs 27.0.50 (build 14, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2018-01-10 built on thunk
Repository revision: b877e9aa0225ad186b544f127702e16c61b08444
Windowing system distributor 'The X.Org Foundation', version 11.0.11905000
System Description: Debian GNU/Linux testing (buster)

[Message part 5 (message/rfc822, inline)]

From: Juri Linkov <juri <at> linkov.net>
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Cc: 30072-done <at> debbugs.gnu.org
Subject: Re: bug#30072: 27.0.50;
 completing-read-multiple chokes on list of default values
Date: Thu, 12 Apr 2018 23:37:17 +0300

>> I attach a fix which follows the implementation of
>> completing-read-default.
>
> Updated to include bug ticket number.

Thanks, pushed to master as 3d6fa0b.

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