hack/hack.options.c

   1 /*      $NetBSD: hack.options.c,v 1.5 2001/02/05 00:37:43 christos Exp $        */
   2
   3 /*
   4  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
   5  */
   6
   7 #include <sys/cdefs.h>
   8 #ifndef lint
   9 __RCSID("$NetBSD: hack.options.c,v 1.5 2001/02/05 00:37:43 christos Exp $");
  10 #endif                          /* not lint */
  11
  12 #include <stdlib.h>
  13 #include <unistd.h>
  14 #include "hack.h"
  15 #include "extern.h"
  16
  17 void
  18 initoptions()
  19 {
  20         char           *opts;
  21
  22         flags.time = flags.nonews = flags.notombstone = flags.end_own =
  23                 flags.standout = flags.nonull = FALSE;
  24         flags.no_rest_on_space = TRUE;
  25         flags.invlet_constant = TRUE;
  26         flags.end_top = 5;
  27         flags.end_around = 4;
  28         flags.female = FALSE;   /* players are usually male */
  29
  30         if ((opts = getenv("HACKOPTIONS")) != NULL)
  31                 parseoptions(opts, TRUE);
  32 }
  33
  34 void
  35 parseoptions(opts, from_env)
  36         char           *opts;
  37         boolean         from_env;
  38 {
  39         char           *op, *op2;
  40         unsigned        num;
  41         boolean         negated;
  42
  43         if ((op = strchr(opts, ',')) != NULL) {
  44                 *op++ = 0;
  45                 parseoptions(op, from_env);
  46         }
  47         if ((op = strchr(opts, ' ')) != NULL) {
  48                 op2 = op;
  49                 while (*op++)
  50                         if (*op != ' ')
  51                                 *op2++ = *op;
  52         }
  53         if (!*opts)
  54                 return;
  55         negated = FALSE;
  56         while ((*opts == '!') || !strncmp(opts, "no", 2)) {
  57                 if (*opts == '!')
  58                         opts++;
  59                 else
  60                         opts += 2;
  61                 negated = !negated;
  62         }
  63
  64         if (!strncmp(opts, "standout", 8)) {
  65                 flags.standout = !negated;
  66                 return;
  67         }
  68         if (!strncmp(opts, "null", 3)) {
  69                 flags.nonull = negated;
  70                 return;
  71         }
  72         if (!strncmp(opts, "tombstone", 4)) {
  73                 flags.notombstone = negated;
  74                 return;
  75         }
  76         if (!strncmp(opts, "news", 4)) {
  77                 flags.nonews = negated;
  78                 return;
  79         }
  80         if (!strncmp(opts, "time", 4)) {
  81                 flags.time = !negated;
  82                 flags.botl = 1;
  83                 return;
  84         }
  85         if (!strncmp(opts, "restonspace", 4)) {
  86                 flags.no_rest_on_space = negated;
  87                 return;
  88         }
  89         if (!strncmp(opts, "fixinv", 4)) {
  90                 if (from_env)
  91                         flags.invlet_constant = !negated;
  92                 else
  93                         pline("The fixinvlet option must be in HACKOPTIONS.");
  94                 return;
  95         }
  96         if (!strncmp(opts, "male", 4)) {
  97                 flags.female = negated;
  98                 return;
  99         }
 100         if (!strncmp(opts, "female", 6)) {
 101                 flags.female = !negated;
 102                 return;
 103         }
 104         /* name:string */
 105         if (!strncmp(opts, "name", 4)) {
 106                 if (!from_env) {
 107                         pline("The playername can be set only from HACKOPTIONS.");
 108                         return;
 109                 }
 110                 op = strchr(opts, ':');
 111                 if (!op)
 112                         goto bad;
 113                 (void) strncpy(plname, op + 1, sizeof(plname) - 1);
 114                 return;
 115         }
 116         /* endgame:5t[op] 5a[round] o[wn] */
 117         if (!strncmp(opts, "endgame", 3)) {
 118                 op = strchr(opts, ':');
 119                 if (!op)
 120                         goto bad;
 121                 op++;
 122                 while (*op) {
 123                         num = 1;
 124                         if (digit(*op)) {
 125                                 num = atoi(op);
 126                                 while (digit(*op))
 127                                         op++;
 128                         } else if (*op == '!') {
 129                                 negated = !negated;
 130                                 op++;
 131                         }
 132                         switch (*op) {
 133                         case 't':
 134                                 flags.end_top = num;
 135                                 break;
 136                         case 'a':
 137                                 flags.end_around = num;
 138                                 break;
 139                         case 'o':
 140                                 flags.end_own = !negated;
 141                                 break;
 142                         default:
 143                                 goto bad;
 144                         }
 145                         while (letter(*++op));
 146                         if (*op == '/')
 147                                 op++;
 148                 }
 149                 return;
 150         }
 151 bad:
 152         if (!from_env) {
 153                 if (!strncmp(opts, "help", 4)) {
 154                         pline("%s%s%s",
 155                               "To set options use `HACKOPTIONS=\"<options>\"' in your environment, or ",
 156                               "give the command 'o' followed by the line `<options>' while playing. ",
 157                               "Here <options> is a list of <option>s separated by commas.");
 158                         pline("%s%s%s",
 159                               "Simple (boolean) options are rest_on_space, news, time, ",
 160                               "null, tombstone, (fe)male. ",
 161                               "These can be negated by prefixing them with '!' or \"no\".");
 162                         pline("%s",
 163                               "A string option is name, as in HACKOPTIONS=\"name:Merlin-W\".");
 164                         pline("%s%s%s",
 165                               "A compound option is endgame; it is followed by a description of what ",
 166                               "parts of the scorelist you want to see. You might for example say: ",
 167                               "`endgame:own scores/5 top scores/4 around my score'.");
 168                         return;
 169                 }
 170                 pline("Bad option: %s.", opts);
 171                 pline("Type `o help<cr>' for help.");
 172                 return;
 173         }
 174         puts("Bad syntax in HACKOPTIONS.");
 175         puts("Use for example:");
 176         puts(
 177              "HACKOPTIONS=\"!restonspace,notombstone,endgame:own/5 topscorers/4 around me\""
 178                 );
 179         getret();
 180 }
 181
 182 int
 183 doset()
 184 {
 185         char            buf[BUFSZ];
 186
 187         pline("What options do you want to set? ");
 188         getlin(buf);
 189         if (!buf[0] || buf[0] == '\033') {
 190                 (void) strcpy(buf, "HACKOPTIONS=");
 191                 (void) strcat(buf, flags.female ? "female," : "male,");
 192                 if (flags.standout)
 193                         (void) strcat(buf, "standout,");
 194                 if (flags.nonull)
 195                         (void) strcat(buf, "nonull,");
 196                 if (flags.nonews)
 197                         (void) strcat(buf, "nonews,");
 198                 if (flags.time)
 199                         (void) strcat(buf, "time,");
 200                 if (flags.notombstone)
 201                         (void) strcat(buf, "notombstone,");
 202                 if (flags.no_rest_on_space)
 203                         (void) strcat(buf, "!rest_on_space,");
 204                 if (flags.end_top != 5 || flags.end_around != 4 || flags.end_own) {
 205                         (void) sprintf(eos(buf), "endgame: %u topscores/%u around me",
 206                                        flags.end_top, flags.end_around);
 207                         if (flags.end_own)
 208                                 (void) strcat(buf, "/own scores");
 209                 } else {
 210                         char           *eop = eos(buf);
 211                         if (*--eop == ',')
 212                                 *eop = 0;
 213                 }
 214                 pline(buf);
 215         } else
 216                 parseoptions(buf, FALSE);
 217
 218         return (0);
 219 }