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authorRan Benita <ran234@gmail.com>2014-10-18 13:50:54 +0300
committerRan Benita <ran234@gmail.com>2014-10-18 15:05:30 +0300
commit494a8fbf3fdfff79cb763556db8b018b623d7ff9 (patch)
tree617877638f823bf5772e3cd2a9c63f97cbcd3ef0 /README.md
parent2e8ab38351266e3894cb797d4bd6a007f1d66603 (diff)
downloadxorg-lib-libxkbcommon-494a8fbf3fdfff79cb763556db8b018b623d7ff9.tar.gz
README: move compatibility notes to their own page
Signed-off-by: Ran Benita <ran234@gmail.com>
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@@ -34,48 +34,7 @@ xkeyboard-config is available here:
## Relation to X11
-Relative to the XKB 1.1 specification implemented in current X servers,
-xkbcommon has removed support for some parts of the specification which
-introduced unnecessary complications. Many of these removals were in fact
-not implemented, or half-implemented at best, as well as being totally
-unused in the standard dataset.
-
-Notable removals:
-- geometry support
- + there were very few geometry definitions available, and while
- xkbcommon was responsible for parsing this insanely complex format,
- it never actually did anything with it
- + hopefully someone will develop a companion library which supports
- keyboard geometries in a more useful format
-- KcCGST (keycodes/compat/geometry/symbols/types) API
- + use RMLVO instead; KcCGST is now an implementation detail
- + including pre-defined keymap files
-- XKM support
- + may come in an optional X11 support/compatibility library
-- around half of the interpret actions
- + pointer device, message and redirect actions in particular
-- non-virtual modifiers
- + core and virtual modifiers have been collapsed into the same
- namespace, with a 'significant' flag that largely parallels the
- core/virtual split
-- radio groups
- + completely unused in current keymaps, never fully implemented
-- overlays
- + almost completely unused in current keymaps
-- key behaviors
- + used to implement radio groups and overlays, and to deal with things
- like keys that physically lock; unused in current keymaps
-- indicator behaviours such as LED-controls-key
- + the only supported LED behaviour is key-controls-LED; again this
- was never really used in current keymaps
-
-Notable additions:
-- 32-bit keycodes
-- extended number of modifiers
-- extended number of groups
-- multiple keysyms per level
- + this requires incompatible dataset changes, such that X11 would
- not be able to parse these
+See [Compatibility](doc/compat.md) notes.
## Development