Re: [AUCTeX-devel] GNU AUCTeX branch, master, updated. fa1daf8cf4c624dc17f584d821f774527579cc97

[Tassilo Horn]

Mosè Giordano <address@hidden> writes:

>> Why this change?  My `completing-read-multiple' never returns nil, if
>> no input is inserted it returns `("")' which isn't nil.  Am I missing
>> something?  I'm running GNU Emacs 24.3, if that helps.
>
> Ok, the behavior of `completing-read-multiple' has been changed since
> the release of GNU Emacs 24.3 with this commit:
> http://bzr.savannah.gnu.org/lh/emacs/trunk/revision/112063

And I wondered how you didn't notice that bug when testing. ;-)

> The return value of `completing-read-multiple' with empty input is
> used elsewhere (e.g. in style/biblatex.el), so we have, at least, two
> possibilities:
> - everywhere check if the return value is `nil' or `("")';
> - treat the two different behaviors inside
> `TeX-completing-read-multiple' and always use it.

Yes, making TeX-completing-read-multiple always return nil on empty
input is definitively the best choice, so I've just implemented that
including the same behavior for the XEmacs `multi-prompt' version.

Also, now all code calls `TeX-completing-read-multiple' instead of just
`completing-read-multiple' (in biblatex.el), and I've adapted hopefully
all checks for empty input.

Bye,
Tassilo