Re: completion-all-completions-with-base-size

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Cc: address@hidden
> Date: Sat, 18 Oct 2008 17:55:14 -0400
> 
> >> > so it sounds like the above NEWS entry does not warrant any
> >> > documentation in the manuals?  Why then it was added to NEWS?
> >> 
> >> Because some functions may call all-completions in a context where
> >> someone has set completion-all-completions-with-base-size
> >> (e.g. when all-completions is used internally by a functional
> >> completion table), in which case it may be surprised by the extra `cdr'
> >> (which could cause `length' or `mapcar' to signal an error).
> 
> > Well, I'm probably missing something, because I couldn't see how what
> > all-completions returns could depend on
> > completion-all-completions-with-base-size.  Please help me
> > understand that.
> 
> Again, it's only in the case where the completion table is a function,
> and only if that function depends on
> completion-all-completions-with-base-size.

If these are the only situations, then I don't think
completion-all-completions-with-base-size warrants to be documented in
the ELisp manual.  Whoever uses functions from minibuffer.el for
completion tables ought to know about this variable and its role.