Re: [9fans] keyboard maps

[Pavel Mihaylov <bin@bash.info>]

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На 16 май 2002 г. (четвъртък), в 13.02 часа, Boyd Roberts писа:
> > I've changed the definition of Altgr to Spec|0x67
> 
> Yes that's right.  I'd also change Spec too:
> 
>     Spec=		0xF800,		/* Unicode private space */
>     Altgr=		Spec|0x67,
> 
> If Spec is 0x80 it causes all sorts of woe when you hit Latin-1 characters.
> 

I'm changing it back to 0x80 since key View (Down) is defined as
Spec|0x00. The value 0x80 for View is hardcoded in rio, acme and sam and
when redefined those programs no longer recognise View as a special key,
and just insert it as text. According to Unicode characters 0x0080 to
0x009F are designated as control ones so it is safe to use them for
special keys. The old definitions for the other Spec-based keys were
causing conflict with Latin-1 characters because Spec (0x80) was ORed
with values above 0x1F (0x20; 0x60 to 0x67) yielding valid accented
Latin characters. That's why I've also changed the definitions for those
keys to be ORed to saner values (0x10; 0x01 to 0x08). Most of those
special keys are interpreted only inside kbd.c so no conflict with
external hardcoded config is possible. Only Break (does it have any
special meaning in P9 or special interpretation?), PF and Middle (both
unassigned in current keymaps) are put into keyboard buffer. The updated
kbd.h is attached.

Regards,
Pavel


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The following attachment had content that we can't
prove to be harmless.  To avoid possible automatic
execution, we changed the content headers.
The original header was:

	Content-Disposition: attachment; filename=kbd.h
	Content-Transfer-Encoding: quoted-printable
	Content-Type: text/x-c-header; name=kbd.h; charset=UTF-8

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enum {
	Data=		0x60,		/* data port */

	Status=		0x64,		/* status port */
	 Inready=	0x01,		/*  input character ready */
	 Outbusy=	0x02,		/*  output busy */
	 Sysflag=	0x04,		/*  system flag */
	 Cmddata=	0x08,		/*  cmd==0, data==1 */
	 Inhibit=	0x10,		/*  keyboard/mouse inhibited */
	 Minready=	0x20,		/*  mouse character ready */
	 Rtimeout=	0x40,		/*  general timeout */
	 Parity=	0x80,

	Cmd=		0x64,		/* command port (write only) */

	Spec=		0x80,

	PF=		Spec|0x10,	/* num pad function key */
	View=		Spec|0x00,	/* view (shift window up) */
	KF=		0xF000,	/* function key (begin Unicode private space) */
	Shift=		Spec|0x01,
	Break=		Spec|0x02,
	Ctrl=			Spec|0x03,
	Compose=	Spec|0x04,
	Caps=		Spec|0x05,
	Num=		Spec|0x06,
	Middle=		Spec|0x07,
	Altgr=		Spec|0x08,
	No=		0x00,		/* peter */

	Home=		KF|13,
	Up=		KF|14,
	Pgup=		KF|15,
	Print=		KF|16,
	Left=		KF|17,
	Right=		KF|18,
	End=		'\r',
	Down=		View,
	Pgdown=		KF|19,
	Ins=		KF|20,
	Del=		0x7F,
	Scroll=		KF|21,
};


typedef struct Kbmap 
{
 char *name;
 Rune *kbtab;
 Rune *kbtabshift;
 Rune *kbtabesc1;
 Rune *kbtabalt;
}Kbmap;


extern Kbmap kbmaps[];
extern int nkbmaps;