Bernt Hansen writes:
> I was talking to Jeff Stern about tags todo matching offlist and we
> think the documentation for tags-todo matching can probably be improved.
>
> The description of C-c a M at
> http://orgmode.org/manual/Matching-tags-and-properties.html
> states
>
> C-c a M
>
> Like C-c a m, but only select headlines that are also TODO items and
> force checking subitems (see variable
> org-tags-match-list-sublevels). To exclude scheduled/deadline items,
> see the variable org-agenda-tags-todo-honor-ignore-options. Matching
> specific TODO keywords together with a tags match is also possible,
> see Tag searches.
>
> When I read this I think TODO items is any todo keyword but this isn't
> the case. It is only non-done TODO state keywords. This makes
> tags-todo matching not work for finding tasks to archive (normally
> DONE | CANCELLED keywords in my setup)
>
> Should we explicitly state that 'headlines that are also TODO items'
> does not match DONE state keywords? Or alternatively should TODO items
> and DONE items be separate (and explicitly defined) in the documentation
> -- like org-todo-keywords and org-done-keywords?
>
> I still think 'TODO keyword' matches any todo keyword defined in
> org-todo-keywords and maybe I need to be re-educated :)
Bernt is right, and this patch tries to clarify the issue.