games/hack/makedefs.c

   1 /* $NetBSD: makedefs.c,v 1.7 2001/03/25 20:44:04 jsm 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 #ifndef lint
  65 static const char rcsid[] =
  66     "$NetBSD: makedefs.c,v 1.7 2001/03/25 20:44:04 jsm Exp $";
  67 #endif                          /* not lint */
  68
  69 #include <stdio.h>
  70 #include <stdlib.h>
  71 #include <string.h>
  72 #include <fcntl.h>
  73 #include <unistd.h>
  74
  75 /* construct definitions of object constants */
  76 #define LINSZ   1000
  77 #define STRSZ   40
  78
  79 int             fd;
  80 char            string[STRSZ];
  81
  82 static void readline(void);
  83 static char nextchar(void);
  84 static int skipuntil(const char *);
  85 static int getentry(void);
  86 static void capitalize(char *);
  87 static int letter(int);
  88 static int digit(int);
  89
  90 int main(int, char **);
  91
  92 int
  93 main(argc, argv)
  94         int             argc;
  95         char          **argv;
  96 {
  97         int             i = 0;
  98         int             propct = 0;
  99         char           *sp;
 100         if (argc != 2) {
 101                 (void) fprintf(stderr, "usage: makedefs file\n");
 102                 exit(1);
 103         }
 104         if ((fd = open(argv[1], O_RDONLY)) < 0) {
 105                 perror(argv[1]);
 106                 exit(1);
 107         }
 108         skipuntil("objects[] = {");
 109         while (getentry()) {
 110                 if (!*string) {
 111                         i++;
 112                         continue;
 113                 }
 114                 for (sp = string; *sp; sp++)
 115                         if (*sp == ' ' || *sp == '\t' || *sp == '-')
 116                                 *sp = '_';
 117                 if (!strncmp(string, "RIN_", 4)) {
 118                         capitalize(string + 4);
 119                         printf("#define %s      u.uprops[%d].p_flgs\n",
 120                                string + 4, propct++);
 121                 }
 122                 for (sp = string; *sp; sp++)
 123                         capitalize(sp);
 124                 /* avoid trouble with stupid C preprocessors */
 125                 if (!strncmp(string, "WORTHLESS_PIECE_OF_", 19))
 126                         printf("/* #define %s   %d */\n", string, i);
 127                 else
 128                         printf("#define %s      %d\n", string, i);
 129                 i++;
 130         }
 131         printf("\n#define       CORPSE  DEAD_HUMAN\n");
 132         printf("#define LAST_GEM        (JADE+1)\n");
 133         printf("#define LAST_RING       %d\n", propct);
 134         printf("#define NROFOBJECTS     %d\n", i - 1);
 135         fflush(stdout);
 136         if (ferror(stdout)) {
 137                 perror("standard output");
 138                 exit(1);
 139         }
 140         exit(0);
 141 }
 142
 143 char            line[LINSZ], *lp = line, *lp0 = line, *lpe = line;
 144 int             eof;
 145
 146 static void
 147 readline()
 148 {
 149         int             n = read(fd, lp0, (line + LINSZ) - lp0);
 150         if (n < 0) {
 151                 printf("Input error.\n");
 152                 exit(1);
 153         }
 154         if (n == 0)
 155                 eof++;
 156         lpe = lp0 + n;
 157 }
 158
 159 static char
 160 nextchar()
 161 {
 162         if (lp == lpe) {
 163                 readline();
 164                 lp = lp0;
 165         }
 166         return ((lp == lpe) ? 0 : *lp++);
 167 }
 168
 169 static int
 170 skipuntil(s)
 171         const char           *s;
 172 {
 173         const char *sp0;
 174         char *sp1;
 175 loop:
 176         while (*s != nextchar())
 177                 if (eof) {
 178                         printf("Cannot skipuntil %s\n", s);
 179                         exit(1);
 180                 }
 181         if (strlen(s) > lpe - lp + 1) {
 182                 char           *lp1, *lp2;
 183                 lp2 = lp;
 184                 lp1 = lp = lp0;
 185                 while (lp2 != lpe)
 186                         *lp1++ = *lp2++;
 187                 lp2 = lp0;      /* save value */
 188                 lp0 = lp1;
 189                 readline();
 190                 lp0 = lp2;
 191                 if (strlen(s) > lpe - lp + 1) {
 192                         printf("error in skipuntil");
 193                         exit(1);
 194                 }
 195         }
 196         sp0 = s + 1;
 197         sp1 = lp;
 198         while (*sp0 && *sp0 == *sp1)
 199                 sp0++, sp1++;
 200         if (!*sp0) {
 201                 lp = sp1;
 202                 return (1);
 203         }
 204         goto loop;
 205 }
 206
 207 static int
 208 getentry()
 209 {
 210         int             inbraces = 0, inparens = 0, stringseen = 0, commaseen = 0;
 211         int             prefix = 0;
 212         char            ch;
 213 #define NSZ     10
 214         char            identif[NSZ], *ip;
 215         string[0] = string[4] = 0;
 216         /*
 217          * read until {...} or XXX(...) followed by , skip comment and
 218          * #define lines deliver 0 on failure
 219          */
 220         while (1) {
 221                 ch = nextchar();
 222 swi:
 223                 if (letter(ch)) {
 224                         ip = identif;
 225                         do {
 226                                 if (ip < identif + NSZ - 1)
 227                                         *ip++ = ch;
 228                                 ch = nextchar();
 229                         } while (letter(ch) || digit(ch));
 230                         *ip = 0;
 231                         while (ch == ' ' || ch == '\t')
 232                                 ch = nextchar();
 233                         if (ch == '(' && !inparens && !stringseen)
 234                                 if (!strcmp(identif, "WAND") ||
 235                                     !strcmp(identif, "RING") ||
 236                                     !strcmp(identif, "POTION") ||
 237                                     !strcmp(identif, "SCROLL"))
 238                                         (void) strncpy(string, identif, 3),
 239                                                 string[3] = '_',
 240                                                 prefix = 4;
 241                 }
 242                 switch (ch) {
 243                 case '/':
 244                         /* watch for comment */
 245                         if ((ch = nextchar()) == '*')
 246                                 skipuntil("*/");
 247                         goto swi;
 248                 case '{':
 249                         inbraces++;
 250                         continue;
 251                 case '(':
 252                         inparens++;
 253                         continue;
 254                 case '}':
 255                         inbraces--;
 256                         if (inbraces < 0)
 257                                 return (0);
 258                         continue;
 259                 case ')':
 260                         inparens--;
 261                         if (inparens < 0) {
 262                                 printf("too many ) ?");
 263                                 exit(1);
 264                         }
 265                         continue;
 266                 case '\n':
 267                         /* watch for #define at begin of line */
 268                         if ((ch = nextchar()) == '#') {
 269                                 char            pch;
 270                                 /* skip until '\n' not preceded by '\\' */
 271                                 do {
 272                                         pch = ch;
 273                                         ch = nextchar();
 274                                 } while (ch != '\n' || pch == '\\');
 275                                 continue;
 276                         }
 277                         goto swi;
 278                 case ',':
 279                         if (!inparens && !inbraces) {
 280                                 if (prefix && !string[prefix])
 281                                         string[0] = 0;
 282                                 if (stringseen)
 283                                         return (1);
 284                                 printf("unexpected ,\n");
 285                                 exit(1);
 286                         }
 287                         commaseen++;
 288                         continue;
 289                 case '\'':
 290                         if ((ch = nextchar()) == '\\')
 291                                 ch = nextchar();
 292                         if (nextchar() != '\'') {
 293                                 printf("strange character denotation?\n");
 294                                 exit(1);
 295                         }
 296                         continue;
 297                 case '"':
 298                         {
 299                                 char           *sp = string + prefix;
 300                                 char            pch;
 301                                 int             store = (inbraces || inparens)
 302                                 && !stringseen++ && !commaseen;
 303                                 do {
 304                                         pch = ch;
 305                                         ch = nextchar();
 306                                         if (store && sp < string + STRSZ)
 307                                                 *sp++ = ch;
 308                                 } while (ch != '"' || pch == '\\');
 309                                 if (store)
 310                                         *--sp = 0;
 311                                 continue;
 312                         }
 313                 }
 314         }
 315 }
 316
 317 static void
 318 capitalize(sp)
 319         char           *sp;
 320 {
 321         if ('a' <= *sp && *sp <= 'z')
 322                 *sp += 'A' - 'a';
 323 }
 324
 325 static int
 326 letter(ch)
 327         char            ch;
 328 {
 329         return (('a' <= ch && ch <= 'z') ||
 330                 ('A' <= ch && ch <= 'Z'));
 331 }
 332
 333 static int
 334 digit(ch)
 335         char            ch;
 336 {
 337         return ('0' <= ch && ch <= '9');
 338 }