On Sat, 17 Apr 2004 00:50:58 +0200
[EMAIL PROTECTED] (Denis Barbier) wrote:
On Wed, Mar 31, 2004 at 01:02:43PM +0200, Felix Kühling wrote:
[...]
If this is a bug in Emacs then I wonder why the Meta-key works correctly
with altwin:meta_win but fails with altwin:left_meta_win. How is the
left Windows key handled differently between the two options? Should
there be any difference? If not then I'd suspect that it's rather a
problem in X.
Erwan David explained (in French) in this thread
http://lists.debian.org/debian-user-french-0404/msg00412.html
and in #234081 that with altwin:left_meta_win, Mod4 is bound to Meta_L
and Super_R. But (X)emacs seems not to be XKB-aware, and thus it cannot
determine whether Meta_L or Super_R is pressed when it received a Mod4
event, and Mod4 is disabled.
If (X)emacs used XKB extensions, it could make this distinction, so one
could argue that this is a limitation in (X)emacs.
But on the other hand, having 2 keys of distinct types (Meta and Super)
bound to the same modifier is certainly not a good idea; if these keys
handle different actions, binding them to different modifiers is
natural. This is what Erwan does in #234081 to fix this problem.
I filed http://bugzilla.xfree86.org/show_bug.cgi?id=1344 but I am afraid
that mapping a key to another modifier might cause other trouble, so
let's see what upstream will propose.
Thanks for the explanation. If I understand you correctly then from the
XFree86 point of view this bug is probably a duplicate of #234081.
It seems that people use altwin:left_meta_win mostly because
altwin:meta_win cancels AltGr, see
http://bugzilla.xfree86.org/show_bug.cgi?id=1341
Right, that was the reason why I went with left_meta_win.
But this one can easily be fixed, here is a patch. All *_win options
are then handled in a similar manner and do not modify Alt keys.
Thanks a lot! I applied your patch in /etc/X11/xkb and am happily using
altwin:meta_win now.
Denis
Felix
