[mcclim-devel] CLIM 2.0 versus CLIM 2.2

[Troels Henriksen]

Hello,

As known, there are two major CLIM references - the annotateable CLIM
spec hosted by Gilbert Baumann, and the CLIM User's Guide by
Franz. The former covers CLIM 2.0 and the latter CLIM 2.2, but which
of these should be considered canonical in McCLIM? As far as I know,
CLIM 2.2 is clearer in some areas, and fills holes that are weirdly
ambiguous, inconsistent or hopelessly un[der]specified in CLIM
2.0. McCLIM already implements some CLIM 2.2 features (not all, though
it should be fairly trivial to add them). As I am easily dazzled by
comparatively large numbers, my opinion is that we should try to
support CLIM 2.2; but what has been McCLIM's "official" position so
far?

The first amusing issue is how to handle the :SCROLL-BARS argument to
`make-clim-stream-pane' and the `open-window-stream' functions. In
CLIM 2.0, `make-clim-stream-pane' takes an argument of type (member T
:HORIZONTAL :VERTICAL NIL), while `open-window-stream' takes an
argument of type (member :BOTH :HORIZONTAL :VERTICAL NIL). In CLIM
2.2, these functions have been unified to both take an argument of
type (member :BOTH :HORIZONTAL :VERTICAL NIL), so I believe that this
was mostly an oversight in CLIM 2.0. It would be easy to add code to
handle both :BOTH and T (and make them synonyms), or to emit a warning
for T. What would be preferable?

-- 
\  Troels "Athas"
/\ Henriksen