OpenBSD-4.6/games/hack/hack.options.c
/* $OpenBSD: hack.options.c,v 1.8 2003/07/06 02:07:45 avsm Exp $ */
/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
* Amsterdam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the Stichting Centrum voor Wiskunde en
* Informatica, nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
* 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.
*/
/*
* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
*/
#ifndef lint
static const char rcsid[] = "$OpenBSD: hack.options.c,v 1.8 2003/07/06 02:07:45 avsm Exp $";
#endif /* not lint */
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "hack.h"
static void parseoptions(char *, boolean);
void
initoptions()
{
char *opts;
flags.time = flags.nonews = flags.notombstone = flags.end_own =
flags.standout = flags.nonull = FALSE;
flags.no_rest_on_space = TRUE;
flags.invlet_constant = TRUE;
flags.end_top = 5;
flags.end_around = 4;
flags.female = FALSE; /* players are usually male */
if ((opts = getenv("HACKOPTIONS")))
parseoptions(opts,TRUE);
}
static void
parseoptions(char *opts, boolean from_env)
{
char *op,*op2;
unsigned num;
boolean negated;
if ((op = strchr(opts, ','))) {
*op++ = 0;
parseoptions(op, from_env);
}
if ((op = strchr(opts, ' '))) {
op2 = op;
while(*op++)
if(*op != ' ') *op2++ = *op;
}
if (!*opts)
return;
negated = FALSE;
while((*opts == '!') || !strncmp(opts, "no", 2)) {
if(*opts == '!') opts++; else opts += 2;
negated = !negated;
}
if(!strncmp(opts,"standout",8)) {
flags.standout = !negated;
return;
}
if(!strncmp(opts,"null",3)) {
flags.nonull = negated;
return;
}
if(!strncmp(opts,"tombstone",4)) {
flags.notombstone = negated;
return;
}
if(!strncmp(opts,"news",4)) {
flags.nonews = negated;
return;
}
if(!strncmp(opts,"time",4)) {
flags.time = !negated;
flags.botl = 1;
return;
}
if(!strncmp(opts,"restonspace",4)) {
flags.no_rest_on_space = negated;
return;
}
if(!strncmp(opts,"fixinv",4)) {
if(from_env)
flags.invlet_constant = !negated;
else
pline("The fixinvlet option must be in HACKOPTIONS.");
return;
}
if(!strncmp(opts,"male",4)) {
flags.female = negated;
return;
}
if(!strncmp(opts,"female",6)) {
flags.female = !negated;
return;
}
/* name:string */
if(!strncmp(opts,"name",4)) {
extern char plname[PL_NSIZ];
if(!from_env) {
pline("The playername can be set only from HACKOPTIONS.");
return;
}
op = strchr(opts,':');
if(!op) goto bad;
(void) strlcpy(plname, op+1, sizeof(plname));
return;
}
/* endgame:5t[op] 5a[round] o[wn] */
if(!strncmp(opts,"endgame",3)) {
op = strchr(opts,':');
if(!op) goto bad;
op++;
while(*op) {
num = 1;
if(isdigit(*op)) {
num = atoi(op);
while(isdigit(*op)) op++;
} else
if(*op == '!') {
negated = !negated;
op++;
}
switch(*op) {
case 't':
flags.end_top = num;
break;
case 'a':
flags.end_around = num;
break;
case 'o':
flags.end_own = !negated;
break;
default:
goto bad;
}
while(letter(*++op)) ;
if(*op == '/') op++;
}
return;
}
bad:
if(!from_env) {
if(!strncmp(opts, "help", 4)) {
pline("%s%s%s",
"To set options use `HACKOPTIONS=\"<options>\"' in your environment, or ",
"give the command 'O' followed by the line `<options>' while playing. ",
"Here <options> is a list of <option>s separated by commas." );
pline("%s%s%s",
"Simple (boolean) options are rest_on_space, news, time, ",
"null, tombstone, (fe)male. ",
"These can be negated by prefixing them with '!' or \"no\"." );
pline("%s",
"A string option is name, as in HACKOPTIONS=\"name:Merlin-W\"." );
pline("%s%s%s",
"A compound option is endgame; it is followed by a description of what ",
"parts of the scorelist you want to see. You might for example say: ",
"`endgame:own scores/5 top scores/4 around my score'." );
return;
}
pline("Bad option: %s.", opts);
pline("Type `O help<cr>' for help.");
return;
}
puts("Bad syntax in HACKOPTIONS.");
puts("Use for example:");
puts(
"HACKOPTIONS=\"!restonspace,notombstone,endgame:own/5 topscorers/4 around me\""
);
getret();
}
int
doset()
{
char buf[BUFSZ];
pline("What options do you want to set? ");
getlin(buf);
if(!buf[0] || buf[0] == '\033') {
(void) strlcpy(buf,"HACKOPTIONS=", sizeof buf);
(void) strlcat(buf, flags.female ? "female," : "male,", sizeof buf);
if(flags.standout) (void) strlcat(buf,"standout,", sizeof buf);
if(flags.nonull) (void) strlcat(buf,"nonull,", sizeof buf);
if(flags.nonews) (void) strlcat(buf,"nonews,", sizeof buf);
if(flags.time) (void) strlcat(buf,"time,", sizeof buf);
if(flags.notombstone) (void) strlcat(buf,"notombstone,", sizeof buf);
if(flags.no_rest_on_space)
(void) strlcat(buf,"!rest_on_space,", sizeof buf);
if(flags.end_top != 5 || flags.end_around != 4 || flags.end_own){
(void) snprintf(eos(buf), buf + sizeof buf - eos(buf),
"endgame: %u topscores/%u around me",
flags.end_top, flags.end_around);
if(flags.end_own) (void) strlcat(buf, "/own scores", sizeof buf);
} else {
char *eop = eos(buf);
if(*--eop == ',') *eop = 0;
}
pline(buf);
} else
parseoptions(buf, FALSE);
return(0);
}