GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/wsconsctl/map_parse.y Lines: 0 8 0.0 %
Date: 2017-11-13 Branches: 0 12 0.0 %

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