Re: New package `outline-occur'

 > display-buffer-base-action customizes only an action
 > whereas we need both condition and action parts like in
 > display-buffer-alist to be able to match a category
 > in the condition part.  Therefore we need a new variable, e.g.
 > display-buffer-base-alist.
 >
 > By analogy with completion category options, the new variable
 > display-buffer-base-alist will correspond to
 > completion-category-defaults, and the existing option
 > display-buffer-alist corresponds to
 > completion-category-overrides for user customization.

So 'display-buffer-base-alist' would conceptually be set by applications
only, override 'display-buffer-base-action' and could be overridden by
'display-buffer-alist'.  Which one would prevail when an ACTION argument
and a 'display-buffer-base-alist' entry both apply?

martin