* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,

/* $NetBSD: hack.options.c,v 1.11 2011/05/23 22:53:25 joerg 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 <[email protected]>
* 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.
*/

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.options.c,v 1.11 2011/05/23 22:53:25 joerg Exp $");
#endif /* not lint */

#include <stdlib.h>
#include <unistd.h>
#include "hack.h"
#include "extern.h"

static void parseoptions(char *, boolean);

void
initoptions(void)
{
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")) != NULL)
parseoptions(opts, TRUE);
}

static void
parseoptions(char *opts, boolean from_env)
{
char *op, *op2;
unsigned num;
boolean negated;

if ((op = strchr(opts, ',')) != NULL) {
*op++ = 0;
parseoptions(op, from_env);
}
if ((op = strchr(opts, ' ')) != NULL) {
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)) {
if (!from_env) {
pline("The playername can be set only from HACKOPTIONS.");
return;
}
op = strchr(opts, ':');
if (!op)
goto bad;
(void) strncpy(plname, op + 1, sizeof(plname) - 1);
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 (digit(*op)) {
num = atoi(op);
while (digit(*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(void)
{
char buf[BUFSZ];
size_t pos;

pline("What options do you want to set? ");
getlin(buf);
if (!buf[0] || buf[0] == '\033') {
(void) strcpy(buf, "HACKOPTIONS=");
(void) strcat(buf, flags.female ? "female," : "male,");
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) {
pos = strlen(buf);
(void) snprintf(buf+pos, sizeof(buf)-pos,
"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("%s", buf);
} else
parseoptions(buf, FALSE);

return (0);
}