On Mon, Mar 21 2011, Stefan Monnier wrote:

> That sentence is obsolete.  Sorry 'bout that.  A collection can be
> any function, including a lambda expression.

Should I open a bug about that to keep track of it?
(asking in case you're already working on a fix or not)

> completion-at-point-function is meant to provide just the possible
> completion candidates for the kind of object being completed.
> Which ones of these will be actually considered will then depend on the
> actual text in the buffer and the completion-styles in use.

I see, that makes sense. I think that completion is not what I want to
use as Tassilo suggested. I've been that way just because this is what
is used in `message.el'. Maybe it requires a change too to turn towards
an `abbrev' use. :)

-- 
Julien Danjou
❱ http://julien.danjou.info