Re: minibuffer-completion-help, metadata and determining completions sort order

[Stefan Monnier]

> Stefan, So the metadata gets placed as a property on the table?

No, the table has to be a function (completion tables can be
represented in many different ways: hash-table, obarray, list, alist,
and function).
Take a look at `completion-metadata' to see how the metadata
is extracted (the Lisp manual still doesn't have the corresponding
description :-( ).

> Also I said the list would get traversed even if the sort
> function was identity because the code does a funcall of the sort
> function provided, but perhaps that's not a big issue.

The "sort function" doesn't have to sort, it just takes a list and must
return a list, it can return the list it receives without looking at it,
as is the case if that function is `identity'.


        Stefan