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: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Subject: bug#30072: closed (Re: bug#30072: 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 bug report

#30072: 27.0.50; completing-read-multiple chokes on list of default values

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30072 <at> debbugs.gnu.org.

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

[Message part 2 (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.

[Message part 3 (message/rfc822, inline)]

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)]

[Message part 5 (text/plain, inline)]

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)

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