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|
/* $OpenBSD: map_parse.y,v 1.7 2012/07/14 08:27:05 shadchin Exp $ */
/* $NetBSD: map_parse.y,v 1.2 1999/02/08 11:08:23 hannken Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Juergen Hannken-Illjes.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* Parse a keyboard map. Statements are one of
*
* keysym sym1 = sym2 Assign the key containing `sym2' to
* the key containing `sym1'. This is a copy
* from the old to the new map. Therefore it
* is possible to exchange keys.
*
* keycode pos = sym ... assign the symbols to key `pos'.
* The first symbol may be a command.
* The following symbols are assigned
* to the normal and altgr groups.
* Missing symbols are generated automatically
* as either the upper case variant or the
* normal group.
*/
%{
#include <sys/time.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsconsio.h>
#include <err.h>
#include "wsconsctl.h"
extern struct wskbd_map_data kbmap; /* from keyboard.c */
static struct wscons_keymap mapdata[KS_NUMKEYCODES];
struct wskbd_map_data newkbmap; /* used in util.c */
static struct wscons_keymap *cur_mp;
static int ksym_lookup(keysym_t);
static int
ksym_lookup(keysym_t ksym)
{
int i;
struct wscons_keymap *mp;
for (i = 0; i < kbmap.maplen; i++) {
mp = kbmap.map + i;
if (mp->command == ksym ||
mp->group1[0] == ksym || mp->group1[1] == ksym ||
mp->group2[0] == ksym || mp->group2[1] == ksym)
return(i);
}
errx(1, "keysym %s not found", ksym2name(ksym));
}
%}
%union {
keysym_t kval;
int ival;
}
%token T_KEYSYM T_KEYCODE
%token <kval> T_KEYSYM_VAR T_KEYSYM_CMD_VAR
%token <ival> T_NUMBER
%type <kval> keysym_var
%%
program : = {
int i;
struct wscons_keymap *mp;
for (i = 0; i < KS_NUMKEYCODES; i++) {
mp = mapdata + i;
mp->command = KS_voidSymbol;
mp->group1[0] = KS_voidSymbol;
mp->group1[1] = KS_voidSymbol;
mp->group2[0] = KS_voidSymbol;
mp->group2[1] = KS_voidSymbol;
}
newkbmap.maplen = 0;
newkbmap.map = mapdata;
} expr_list
;
expr_list : expr
| expr_list expr
;
expr : keysym_expr
| keycode_expr
;
keysym_expr : T_KEYSYM keysym_var "=" keysym_var = {
int src, dst;
dst = ksym_lookup($2);
src = ksym_lookup($4);
newkbmap.map[dst] = kbmap.map[src];
if (dst >= newkbmap.maplen)
newkbmap.maplen = dst + 1;
}
;
keycode_expr : T_KEYCODE T_NUMBER "=" = {
if ($2 >= KS_NUMKEYCODES)
errx(1, "%d: keycode too large", $2);
if ($2 >= newkbmap.maplen)
newkbmap.maplen = $2 + 1;
cur_mp = mapdata + $2;
} keysym_cmd keysym_list
;
keysym_cmd : /* empty */
| T_KEYSYM_CMD_VAR = {
cur_mp->command = $1;
}
;
keysym_list : keysym_var = {
cur_mp->group1[0] = $1;
cur_mp->group1[1] = ksym_upcase(cur_mp->group1[0]);
cur_mp->group2[0] = cur_mp->group1[0];
cur_mp->group2[1] = cur_mp->group1[1];
}
| keysym_var keysym_var = {
cur_mp->group1[0] = $1;
cur_mp->group1[1] = $2;
cur_mp->group2[0] = cur_mp->group1[0];
cur_mp->group2[1] = cur_mp->group1[1];
}
| keysym_var keysym_var keysym_var = {
cur_mp->group1[0] = $1;
cur_mp->group1[1] = $2;
cur_mp->group2[0] = $3;
cur_mp->group2[1] = ksym_upcase(cur_mp->group2[0]);
}
| keysym_var keysym_var keysym_var keysym_var = {
cur_mp->group1[0] = $1;
cur_mp->group1[1] = $2;
cur_mp->group2[0] = $3;
cur_mp->group2[1] = $4;
}
;
keysym_var : T_KEYSYM_VAR = {
$$ = $1;
}
| T_NUMBER = {
char name[2];
int res;
if ($1 < 0 || $1 > 9)
yyerror("keysym expected");
name[0] = $1 + '0';
name[1] = '\0';
res = name2ksym(name);
if (res < 0)
yyerror("keysym expected");
$$ = res;
}
;
%%
void
yyerror(char *msg)
{
errx(1, "parse: %s", msg);
}
|
