2.11BSD#431 - /usr/src/games/hack/makedefs.c

   1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2: /* makedefs.c - version 1.0.2 */
   3: 
   4: /* construct definitions of object constants */
   5: #define DEF_FILE    "def.objects.h"
   6: #define LINSZ   1000
   7: #define STRSZ   40
   8: 
   9: int fd;
  10: char string[STRSZ];
  11: 
  12: main(){
  13: register int index = 0;
  14: register int propct = 0;
  15: register char *sp;
  16:     fd = open(DEF_FILE, 0);
  17:     if(fd < 0) {
  18:         perror(DEF_FILE);
  19:         exit(1);
  20:     }
  21:     skipuntil("objects[] = {");
  22:     while(getentry()) {
  23:         if(!*string){
  24:             index++;
  25:             continue;
  26:         }
  27:         for(sp = string; *sp; sp++)
  28:             if(*sp == ' ' || *sp == '\t' || *sp == '-')
  29:                 *sp = '_';
  30:         if(!strncmp(string, "RIN_", 4)){
  31:             capitalize(string+4);
  32:             printf("#define	%s	u.uprops[%d].p_flgs\n",
  33:                 string+4, propct++);
  34:         }
  35:         for(sp = string; *sp; sp++) capitalize(sp);
  36:         /* avoid trouble with stupid C preprocessors */
  37:         if(!strncmp(string, "WORTHLESS_PIECE_OF_", 19))
  38:             printf("/* #define %s	%d */\n", string, index);
  39:         else
  40:             printf("#define	%s	%d\n", string, index);
  41:         index++;
  42:     }
  43:     printf("\n#define	CORPSE	DEAD_HUMAN\n");
  44:     printf("#define	LAST_GEM	(JADE+1)\n");
  45:     printf("#define	LAST_RING	%d\n", propct);
  46:     printf("#define	NROFOBJECTS	%d\n", index-1);
  47:     exit(0);
  48: }
  49: 
  50: char line[LINSZ], *lp = line, *lp0 = line, *lpe = line;
  51: int eof;
  52: 
  53: readline(){
  54: register int n = read(fd, lp0, (line+LINSZ)-lp0);
  55:     if(n < 0){
  56:         printf("Input error.\n");
  57:         exit(1);
  58:     }
  59:     if(n == 0) eof++;
  60:     lpe = lp0+n;
  61: }
  62: 
  63: char
  64: nextchar(){
  65:     if(lp == lpe){
  66:         readline();
  67:         lp = lp0;
  68:     }
  69:     return((lp == lpe) ? 0 : *lp++);
  70: }
  71: 
  72: skipuntil(s) char *s; {
  73: register char *sp0, *sp1;
  74: loop:
  75:     while(*s != nextchar())
  76:         if(eof) {
  77:             printf("Cannot skipuntil %s\n", s);
  78:             exit(1);
  79:         }
  80:     if(strlen(s) > lpe-lp+1){
  81:         register char *lp1, *lp2;
  82:         lp2 = lp;
  83:         lp1 = lp = lp0;
  84:         while(lp2 != lpe) *lp1++ = *lp2++;
  85:         lp2 = lp0;  /* save value */
  86:         lp0 = lp1;
  87:         readline();
  88:         lp0 = lp2;
  89:         if(strlen(s) > lpe-lp+1) {
  90:             printf("error in skipuntil");
  91:             exit(1);
  92:         }
  93:     }
  94:     sp0 = s+1;
  95:     sp1 = lp;
  96:     while(*sp0 && *sp0 == *sp1) sp0++, sp1++;
  97:     if(!*sp0){
  98:         lp = sp1;
  99:         return(1);
 100:     }
 101:     goto loop;
 102: }
 103: 
 104: getentry(){
 105: int inbraces = 0, inparens = 0, stringseen = 0, commaseen = 0;
 106: int prefix = 0;
 107: char ch;
 108: #define NSZ 10
 109: char identif[NSZ], *ip;
 110:     string[0] = string[4] = 0;
 111:     /* read until {...} or XXX(...) followed by ,
 112: 	   skip comment and #define lines
 113: 	   deliver 0 on failure
 114: 	 */
 115:     while(1) {
 116:         ch = nextchar();
 117:     swi:
 118:         if(letter(ch)){
 119:             ip = identif;
 120:             do {
 121:                 if(ip < identif+NSZ-1) *ip++ = ch;
 122:                 ch = nextchar();
 123:             } while(letter(ch) || digit(ch));
 124:             *ip = 0;
 125:             while(ch == ' ' || ch == '\t') ch = nextchar();
 126:             if(ch == '(' && !inparens && !stringseen)
 127:                 if(!strcmp(identif, "WAND") ||
 128:                    !strcmp(identif, "RING") ||
 129:                    !strcmp(identif, "POTION") ||
 130:                    !strcmp(identif, "SCROLL"))
 131:                 (void) strncpy(string, identif, 3),
 132:                 string[3] = '_',
 133:                 prefix = 4;
 134:         }
 135:         switch(ch) {
 136:         case '/':
 137:             /* watch for comment */
 138:             if((ch = nextchar()) == '*')
 139:                 skipuntil("*/");
 140:             goto swi;
 141:         case '{':
 142:             inbraces++;
 143:             continue;
 144:         case '(':
 145:             inparens++;
 146:             continue;
 147:         case '}':
 148:             inbraces--;
 149:             if(inbraces < 0) return(0);
 150:             continue;
 151:         case ')':
 152:             inparens--;
 153:             if(inparens < 0) {
 154:                 printf("too many ) ?");
 155:                 exit(1);
 156:             }
 157:             continue;
 158:         case '\n':
 159:             /* watch for #define at begin of line */
 160:             if((ch = nextchar()) == '#'){
 161:                 register char pch;
 162:                 /* skip until '\n' not preceded by '\\' */
 163:                 do {
 164:                     pch = ch;
 165:                     ch = nextchar();
 166:                 } while(ch != '\n' || pch == '\\');
 167:                 continue;
 168:             }
 169:             goto swi;
 170:         case ',':
 171:             if(!inparens && !inbraces){
 172:                 if(prefix && !string[prefix])
 173:                     string[0] = 0;
 174:                 if(stringseen) return(1);
 175:                 printf("unexpected ,\n");
 176:                 exit(1);
 177:             }
 178:             commaseen++;
 179:             continue;
 180:         case '\'':
 181:             if((ch = nextchar()) == '\\') ch = nextchar();
 182:             if(nextchar() != '\''){
 183:                 printf("strange character denotation?\n");
 184:                 exit(1);
 185:             }
 186:             continue;
 187:         case '"':
 188:             {
 189:                 register char *sp = string + prefix;
 190:                 register char pch;
 191:                 register int store = (inbraces || inparens)
 192:                     && !stringseen++ && !commaseen;
 193:                 do {
 194:                     pch = ch;
 195:                     ch = nextchar();
 196:                     if(store && sp < string+STRSZ)
 197:                         *sp++ = ch;
 198:                 } while(ch != '"' || pch == '\\');
 199:                 if(store) *--sp = 0;
 200:                 continue;
 201:             }
 202:         }
 203:     }
 204: }
 205: 
 206: capitalize(sp) register char *sp; {
 207:     if('a' <= *sp && *sp <= 'z') *sp += 'A'-'a';
 208: }
 209: 
 210: letter(ch) register char ch; {
 211:     return( ('a' <= ch && ch <= 'z') ||
 212:         ('A' <= ch && ch <= 'Z') );
 213: }
 214: 
 215: digit(ch) register char ch; {
 216:     return( '0' <= ch && ch <= '9' );
 217: }

Defined functions

Defined variables

Defined macros