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/* $NetBSD: makedefs.c,v 1.5 1997/10/19 16:59:36 christos Exp $ */
/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: makedefs.c,v 1.5 1997/10/19 16:59:36 christos Exp $");
#endif /* not lint */
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
/* construct definitions of object constants */
#define LINSZ 1000
#define STRSZ 40
int fd;
char string[STRSZ];
static void readline __P((void));
static char nextchar __P((void));
static int skipuntil __P((char *));
static int getentry __P((void));
static void capitalize __P((char *));
static int letter __P((int));
static int digit __P((int));
int main __P((int, char **));
int
main(argc, argv)
int argc;
char **argv;
{
int i = 0;
int propct = 0;
char *sp;
if (argc != 2) {
(void) fprintf(stderr, "usage: makedefs file\n");
exit(1);
}
if ((fd = open(argv[1], 0)) < 0) {
perror(argv[1]);
exit(1);
}
skipuntil("objects[] = {");
while (getentry()) {
if (!*string) {
i++;
continue;
}
for (sp = string; *sp; sp++)
if (*sp == ' ' || *sp == '\t' || *sp == '-')
*sp = '_';
if (!strncmp(string, "RIN_", 4)) {
capitalize(string + 4);
printf("#define %s u.uprops[%d].p_flgs\n",
string + 4, propct++);
}
for (sp = string; *sp; sp++)
capitalize(sp);
/* avoid trouble with stupid C preprocessors */
if (!strncmp(string, "WORTHLESS_PIECE_OF_", 19))
printf("/* #define %s %d */\n", string, i);
else
printf("#define %s %d\n", string, i);
i++;
}
printf("\n#define CORPSE DEAD_HUMAN\n");
printf("#define LAST_GEM (JADE+1)\n");
printf("#define LAST_RING %d\n", propct);
printf("#define NROFOBJECTS %d\n", i - 1);
exit(0);
}
char line[LINSZ], *lp = line, *lp0 = line, *lpe = line;
int eof;
static void
readline()
{
int n = read(fd, lp0, (line + LINSZ) - lp0);
if (n < 0) {
printf("Input error.\n");
exit(1);
}
if (n == 0)
eof++;
lpe = lp0 + n;
}
static char
nextchar()
{
if (lp == lpe) {
readline();
lp = lp0;
}
return ((lp == lpe) ? 0 : *lp++);
}
static int
skipuntil(s)
char *s;
{
char *sp0, *sp1;
loop:
while (*s != nextchar())
if (eof) {
printf("Cannot skipuntil %s\n", s);
exit(1);
}
if (strlen(s) > lpe - lp + 1) {
char *lp1, *lp2;
lp2 = lp;
lp1 = lp = lp0;
while (lp2 != lpe)
*lp1++ = *lp2++;
lp2 = lp0; /* save value */
lp0 = lp1;
readline();
lp0 = lp2;
if (strlen(s) > lpe - lp + 1) {
printf("error in skipuntil");
exit(1);
}
}
sp0 = s + 1;
sp1 = lp;
while (*sp0 && *sp0 == *sp1)
sp0++, sp1++;
if (!*sp0) {
lp = sp1;
return (1);
}
goto loop;
}
static int
getentry()
{
int inbraces = 0, inparens = 0, stringseen = 0, commaseen = 0;
int prefix = 0;
char ch;
#define NSZ 10
char identif[NSZ], *ip;
string[0] = string[4] = 0;
/*
* read until {...} or XXX(...) followed by , skip comment and
* #define lines deliver 0 on failure
*/
while (1) {
ch = nextchar();
swi:
if (letter(ch)) {
ip = identif;
do {
if (ip < identif + NSZ - 1)
*ip++ = ch;
ch = nextchar();
} while (letter(ch) || digit(ch));
*ip = 0;
while (ch == ' ' || ch == '\t')
ch = nextchar();
if (ch == '(' && !inparens && !stringseen)
if (!strcmp(identif, "WAND") ||
!strcmp(identif, "RING") ||
!strcmp(identif, "POTION") ||
!strcmp(identif, "SCROLL"))
(void) strncpy(string, identif, 3),
string[3] = '_',
prefix = 4;
}
switch (ch) {
case '/':
/* watch for comment */
if ((ch = nextchar()) == '*')
skipuntil("*/");
goto swi;
case '{':
inbraces++;
continue;
case '(':
inparens++;
continue;
case '}':
inbraces--;
if (inbraces < 0)
return (0);
continue;
case ')':
inparens--;
if (inparens < 0) {
printf("too many ) ?");
exit(1);
}
continue;
case '\n':
/* watch for #define at begin of line */
if ((ch = nextchar()) == '#') {
char pch;
/* skip until '\n' not preceded by '\\' */
do {
pch = ch;
ch = nextchar();
} while (ch != '\n' || pch == '\\');
continue;
}
goto swi;
case ',':
if (!inparens && !inbraces) {
if (prefix && !string[prefix])
string[0] = 0;
if (stringseen)
return (1);
printf("unexpected ,\n");
exit(1);
}
commaseen++;
continue;
case '\'':
if ((ch = nextchar()) == '\\')
ch = nextchar();
if (nextchar() != '\'') {
printf("strange character denotation?\n");
exit(1);
}
continue;
case '"':
{
char *sp = string + prefix;
char pch;
int store = (inbraces || inparens)
&& !stringseen++ && !commaseen;
do {
pch = ch;
ch = nextchar();
if (store && sp < string + STRSZ)
*sp++ = ch;
} while (ch != '"' || pch == '\\');
if (store)
*--sp = 0;
continue;
}
}
}
}
static void
capitalize(sp)
char *sp;
{
if ('a' <= *sp && *sp <= 'z')
*sp += 'A' - 'a';
}
static int
letter(ch)
char ch;
{
return (('a' <= ch && ch <= 'z') ||
('A' <= ch && ch <= 'Z'));
}
static int
digit(ch)
char ch;
{
return ('0' <= ch && ch <= '9');
}
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