Re: Should nil COLLECTION element mean a "nil" candidate for completing-read? Alist doc.

[Stefan Monnier]

> What does that mean? Are you simply saying "don't do that" - users
> must ensure that there are no nil elements in the COLLECTION arg?

Yes.

> And what about the rest of my post, regarding the doc contradictions and
> confusion wrt alist elements?

Same idea:

> The doc describing the COLLECTION arg to `completing-read',
> `try-completion', etc. does not call out this special treatment of
> nil.  In fact, it does not even say that you can mix cons entries and
> string entries (let alone nil entries).

Indeed, it doesn't say you can do it.  So if you do it, you're on
your own.


        Stefan