1 /* $NetBSD: hack.options.c,v 1.11 2011/05/23 22:53:25 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica, 5 * Amsterdam 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * - Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * - Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * - Neither the name of the Stichting Centrum voor Wiskunde en 20 * Informatica, nor the names of its contributors may be used to endorse or 21 * promote products derived from this software without specific prior 22 * written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 /* 38 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org> 39 * All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #include <stdlib.h> 65 #include <unistd.h> 66 #include "hack.h" 67 #include "extern.h" 68 69 static void parseoptions(char *, boolean); 70 71 void 72 initoptions(void) 73 { 74 char *opts; 75 76 flags.time = flags.nonews = flags.notombstone = flags.end_own = 77 flags.standout = flags.nonull = FALSE; 78 flags.no_rest_on_space = TRUE; 79 flags.invlet_constant = TRUE; 80 flags.end_top = 5; 81 flags.end_around = 4; 82 flags.female = FALSE; /* players are usually male */ 83 84 if ((opts = getenv("HACKOPTIONS")) != NULL) 85 parseoptions(opts, TRUE); 86 } 87 88 static void 89 parseoptions(char *opts, boolean from_env) 90 { 91 char *op, *op2; 92 unsigned num; 93 boolean negated; 94 95 if ((op = strchr(opts, ',')) != NULL) { 96 *op++ = 0; 97 parseoptions(op, from_env); 98 } 99 if ((op = strchr(opts, ' ')) != NULL) { 100 op2 = op; 101 while (*op++) 102 if (*op != ' ') 103 *op2++ = *op; 104 } 105 if (!*opts) 106 return; 107 negated = FALSE; 108 while ((*opts == '!') || !strncmp(opts, "no", 2)) { 109 if (*opts == '!') 110 opts++; 111 else 112 opts += 2; 113 negated = !negated; 114 } 115 116 if (!strncmp(opts, "standout", 8)) { 117 flags.standout = !negated; 118 return; 119 } 120 if (!strncmp(opts, "null", 3)) { 121 flags.nonull = negated; 122 return; 123 } 124 if (!strncmp(opts, "tombstone", 4)) { 125 flags.notombstone = negated; 126 return; 127 } 128 if (!strncmp(opts, "news", 4)) { 129 flags.nonews = negated; 130 return; 131 } 132 if (!strncmp(opts, "time", 4)) { 133 flags.time = !negated; 134 flags.botl = 1; 135 return; 136 } 137 if (!strncmp(opts, "restonspace", 4)) { 138 flags.no_rest_on_space = negated; 139 return; 140 } 141 if (!strncmp(opts, "fixinv", 4)) { 142 if (from_env) 143 flags.invlet_constant = !negated; 144 else 145 pline("The fixinvlet option must be in HACKOPTIONS."); 146 return; 147 } 148 if (!strncmp(opts, "male", 4)) { 149 flags.female = negated; 150 return; 151 } 152 if (!strncmp(opts, "female", 6)) { 153 flags.female = !negated; 154 return; 155 } 156 /* name:string */ 157 if (!strncmp(opts, "name", 4)) { 158 if (!from_env) { 159 pline("The playername can be set only from HACKOPTIONS."); 160 return; 161 } 162 op = strchr(opts, ':'); 163 if (!op) 164 goto bad; 165 (void) strncpy(plname, op + 1, sizeof(plname) - 1); 166 return; 167 } 168 /* endgame:5t[op] 5a[round] o[wn] */ 169 if (!strncmp(opts, "endgame", 3)) { 170 op = strchr(opts, ':'); 171 if (!op) 172 goto bad; 173 op++; 174 while (*op) { 175 num = 1; 176 if (digit(*op)) { 177 num = atoi(op); 178 while (digit(*op)) 179 op++; 180 } else if (*op == '!') { 181 negated = !negated; 182 op++; 183 } 184 switch (*op) { 185 case 't': 186 flags.end_top = num; 187 break; 188 case 'a': 189 flags.end_around = num; 190 break; 191 case 'o': 192 flags.end_own = !negated; 193 break; 194 default: 195 goto bad; 196 } 197 while (letter(*++op)); 198 if (*op == '/') 199 op++; 200 } 201 return; 202 } 203 bad: 204 if (!from_env) { 205 if (!strncmp(opts, "help", 4)) { 206 pline("%s%s%s", 207 "To set options use `HACKOPTIONS=\"<options>\"' in your environment, or ", 208 "give the command 'O' followed by the line `<options>' while playing. ", 209 "Here <options> is a list of <option>s separated by commas."); 210 pline("%s%s%s", 211 "Simple (boolean) options are rest_on_space, news, time, ", 212 "null, tombstone, (fe)male. ", 213 "These can be negated by prefixing them with '!' or \"no\"."); 214 pline("%s", 215 "A string option is name, as in HACKOPTIONS=\"name:Merlin-W\"."); 216 pline("%s%s%s", 217 "A compound option is endgame; it is followed by a description of what ", 218 "parts of the scorelist you want to see. You might for example say: ", 219 "`endgame:own scores/5 top scores/4 around my score'."); 220 return; 221 } 222 pline("Bad option: %s.", opts); 223 pline("Type `O help<cr>' for help."); 224 return; 225 } 226 puts("Bad syntax in HACKOPTIONS."); 227 puts("Use for example:"); 228 puts( 229 "HACKOPTIONS=\"!restonspace,notombstone,endgame:own/5 topscorers/4 around me\"" 230 ); 231 getret(); 232 } 233 234 int 235 doset(void) 236 { 237 char buf[BUFSZ]; 238 size_t pos; 239 240 pline("What options do you want to set? "); 241 getlin(buf); 242 if (!buf[0] || buf[0] == '\033') { 243 (void) strcpy(buf, "HACKOPTIONS="); 244 (void) strcat(buf, flags.female ? "female," : "male,"); 245 if (flags.standout) 246 (void) strlcat(buf, "standout,", sizeof(buf)); 247 if (flags.nonull) 248 (void) strlcat(buf, "nonull,", sizeof(buf)); 249 if (flags.nonews) 250 (void) strlcat(buf, "nonews,", sizeof(buf)); 251 if (flags.time) 252 (void) strlcat(buf, "time,", sizeof(buf)); 253 if (flags.notombstone) 254 (void) strlcat(buf, "notombstone,", sizeof(buf)); 255 if (flags.no_rest_on_space) 256 (void) strlcat(buf, "!rest_on_space,", sizeof(buf)); 257 if (flags.end_top != 5 || flags.end_around != 4 || flags.end_own) { 258 pos = strlen(buf); 259 (void) snprintf(buf+pos, sizeof(buf)-pos, 260 "endgame: %u topscores/%u around me", 261 flags.end_top, flags.end_around); 262 if (flags.end_own) 263 (void) strlcat(buf, "/own scores", sizeof(buf)); 264 } else { 265 char *eop = eos(buf); 266 if (*--eop == ',') 267 *eop = 0; 268 } 269 pline("%s", buf); 270 } else 271 parseoptions(buf, FALSE); 272 273 return (0); 274 } 275