[Xorg] Revision of Appendix A of the X11 Protocol Spec: KEYSYM Encoding
Markus.Kuhn at cl.cam.ac.uk
Mon Aug 16 09:21:52 PDT 2004
I have substantially revised and updated the long neglected KEYSYM
Encoding specification in Appendix A of the X11 Protocol Standard. The
result, which I propose for inclusion into the next X.Org release,
The troff source to replace xc/doc/specs/XProtocol/X11.keysyms is on
Changes in a nutshell:
- Added definition of Unicode-mapped keysyms 0x01000100 to 0x0110ffff
- Restructuring of text, with separate sections for
- Special keysyms
- Latin-1 keysyms
- Unicode keysyms
- Function keysyms
- Vendor keysyms
- Legacy keysyms
- Addition of Unicode cross-reference column to Legacy keysym table
- Added some words on long-term depreciation of some of the Legacy
keysyms (Currency, Special, etc.).
- Addition of the 0xFExx keysyms (Keyboard (XKB) Extention) from
<X11/keysymdef.h>, which were missing so far completely from the
- Replaced the archaic ISO/ECMA 16/16 notation with more useful
contemporary hexadecimal numbers
- Updated the character names to latest edition of ISO 8859 (which now uses
the ISO 10646 names)
- Removed some long obsolete and irrelevant text (e.g. the section sign vs.
paragraph sign vs. pilcrow naming discussion), and rephrased other parts
to give more modern examples.
- Added keysyms
from Xfree86 <X11/keysymdef.h>.
Still to do:
- Investigate the semantics of the added "Keyboard (XKB) Extention"
E.g., some of these seem to come from ISO 9995-7, but cross-referencing
with that document did not give a flawless match. Any additional
information on that topic are highly welcome. Who did add the
"Keyboard (XKB) Extention" keysyms, and when. Is there any additional
background documentation about the meaning of these keysyms? Are they
all actually used and needed?
- Look at Microsoft's recent Multimedia/Internet function keys, which are
in part already covered in XFree86 vendor extensions, whether/how these
should be moved into the X11 standard.
A matching updated keysymdef.h proposal is on
Comments and reviews welcome!
Markus Kuhn, Computer Laboratory, University of Cambridge
http://www.cl.cam.ac.uk/~mgk25/ || CB3 0FD, Great Britain
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