NetBSD/games/hack/hack.options.c

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/* $NetBSD: hack.options.c,v 1.5 2001/02/05 00:37:43 christos Exp $ */
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/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
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#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.options.c,v 1.5 2001/02/05 00:37:43 christos Exp $");
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#endif /* not lint */
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#include <stdlib.h>
#include <unistd.h>
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#include "hack.h"
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#include "extern.h"
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void
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initoptions()
{
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char *opts;
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flags.time = flags.nonews = flags.notombstone = flags.end_own =
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flags.standout = flags.nonull = FALSE;
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flags.no_rest_on_space = TRUE;
flags.invlet_constant = TRUE;
flags.end_top = 5;
flags.end_around = 4;
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flags.female = FALSE; /* players are usually male */
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if ((opts = getenv("HACKOPTIONS")) != NULL)
parseoptions(opts, TRUE);
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}
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void
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parseoptions(opts, from_env)
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char *opts;
boolean from_env;
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{
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char *op, *op2;
unsigned num;
boolean negated;
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if ((op = strchr(opts, ',')) != NULL) {
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*op++ = 0;
parseoptions(op, from_env);
}
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if ((op = strchr(opts, ' ')) != NULL) {
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op2 = op;
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while (*op++)
if (*op != ' ')
*op2++ = *op;
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}
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if (!*opts)
return;
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negated = FALSE;
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while ((*opts == '!') || !strncmp(opts, "no", 2)) {
if (*opts == '!')
opts++;
else
opts += 2;
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negated = !negated;
}
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if (!strncmp(opts, "standout", 8)) {
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flags.standout = !negated;
return;
}
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if (!strncmp(opts, "null", 3)) {
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flags.nonull = negated;
return;
}
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if (!strncmp(opts, "tombstone", 4)) {
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flags.notombstone = negated;
return;
}
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if (!strncmp(opts, "news", 4)) {
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flags.nonews = negated;
return;
}
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if (!strncmp(opts, "time", 4)) {
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flags.time = !negated;
flags.botl = 1;
return;
}
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if (!strncmp(opts, "restonspace", 4)) {
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flags.no_rest_on_space = negated;
return;
}
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if (!strncmp(opts, "fixinv", 4)) {
if (from_env)
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flags.invlet_constant = !negated;
else
pline("The fixinvlet option must be in HACKOPTIONS.");
return;
}
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if (!strncmp(opts, "male", 4)) {
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flags.female = negated;
return;
}
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if (!strncmp(opts, "female", 6)) {
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flags.female = !negated;
return;
}
/* name:string */
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if (!strncmp(opts, "name", 4)) {
if (!from_env) {
pline("The playername can be set only from HACKOPTIONS.");
return;
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}
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op = strchr(opts, ':');
if (!op)
goto bad;
(void) strncpy(plname, op + 1, sizeof(plname) - 1);
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return;
}
/* endgame:5t[op] 5a[round] o[wn] */
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if (!strncmp(opts, "endgame", 3)) {
op = strchr(opts, ':');
if (!op)
goto bad;
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op++;
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while (*op) {
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num = 1;
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if (digit(*op)) {
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num = atoi(op);
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while (digit(*op))
op++;
} else if (*op == '!') {
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negated = !negated;
op++;
}
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switch (*op) {
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case 't':
flags.end_top = num;
break;
case 'a':
flags.end_around = num;
break;
case 'o':
flags.end_own = !negated;
break;
default:
goto bad;
}
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while (letter(*++op));
if (*op == '/')
op++;
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}
return;
}
bad:
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if (!from_env) {
if (!strncmp(opts, "help", 4)) {
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pline("%s%s%s",
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"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.");
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pline("%s%s%s",
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"Simple (boolean) options are rest_on_space, news, time, ",
"null, tombstone, (fe)male. ",
"These can be negated by prefixing them with '!' or \"no\".");
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pline("%s",
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"A string option is name, as in HACKOPTIONS=\"name:Merlin-W\".");
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pline("%s%s%s",
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"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'.");
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return;
}
pline("Bad option: %s.", opts);
pline("Type `o help<cr>' for help.");
return;
}
puts("Bad syntax in HACKOPTIONS.");
puts("Use for example:");
puts(
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"HACKOPTIONS=\"!restonspace,notombstone,endgame:own/5 topscorers/4 around me\""
);
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getret();
}
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int
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doset()
{
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char buf[BUFSZ];
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pline("What options do you want to set? ");
getlin(buf);
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if (!buf[0] || buf[0] == '\033') {
(void) strcpy(buf, "HACKOPTIONS=");
(void) strcat(buf, flags.female ? "female," : "male,");
if (flags.standout)
(void) strcat(buf, "standout,");
if (flags.nonull)
(void) strcat(buf, "nonull,");
if (flags.nonews)
(void) strcat(buf, "nonews,");
if (flags.time)
(void) strcat(buf, "time,");
if (flags.notombstone)
(void) strcat(buf, "notombstone,");
if (flags.no_rest_on_space)
(void) strcat(buf, "!rest_on_space,");
if (flags.end_top != 5 || flags.end_around != 4 || flags.end_own) {
(void) sprintf(eos(buf), "endgame: %u topscores/%u around me",
flags.end_top, flags.end_around);
if (flags.end_own)
(void) strcat(buf, "/own scores");
} else {
char *eop = eos(buf);
if (*--eop == ',')
*eop = 0;
}
pline(buf);
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} else
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parseoptions(buf, FALSE);
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return (0);
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}