bug#24962: 26.0.50; list-buffers doesn't show buffers w/ name " "... visiting a file

[Clément Pit--Claudel]

On 2016-11-18 09:31, Eli Zaretskii wrote:
>> From: Tino Calancha <tino.calancha@gmail.com>
>> Date: Fri, 18 Nov 2016 20:15:52 +0900 (JST)
>> Cc: Tino Calancha <tino.calancha@gmail.com>
>>
>> emacs -Q -eval '(write-region "foo" nil (expand-file-name 
>> temporary-file-directory "foo"))'
>>   M-: (find-file (expand-file-name temporary-file-directory "foo")) RET
>>   M-: (rename-buffer " foo") RET
>>   C-x C-b
>>   ;; Buffer " foo" not listed.
>>
>> >From the Emacs manual:
>> doc/lispref/buffers.texi (Buffer Names):
>> Buffers that are ephemeral and generally uninteresting to the user
>> have names starting with a space, so that the @code{list-buffers} and
>> @code{buffer-menu} commands don't mention them (but if such a buffer
>> visits a file, it @strong{is} mentioned).
> 
> Thank.  Please add a test for this to the test suite.

Could we fix the manual instead? Or do we have evidence that all modes that use 
temporary buffers visiting files set buffer-file-name to nil to prevent these 
buffers from being listed?

Clément.

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