OpenBSD-4.6/games/hack/makedefs.c
/* $OpenBSD: makedefs.c,v 1.6 2003/05/19 09:00:54 pjanzen Exp $ */
/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
* Amsterdam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Stichting Centrum voor Wiskunde en
* Informatica, nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] = "$OpenBSD: makedefs.c,v 1.6 2003/05/19 09:00:54 pjanzen Exp $";
#endif /* not lint */
#include <ctype.h>
#include <stdio.h>
#include <stdlib.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];
void capitalize(char *sp);
int getentry(void);
int skipuntil(char *s);
char nextchar(void);
void readline(void);
int
main(int argc, char **argv)
{
int index = 0;
int propct = 0;
char *sp;
if (argc != 2) {
(void)fprintf(stderr, "usage: makedefs file\n");
exit(1);
}
if ((fd = open(argv[1], O_RDONLY)) < 0) {
perror(argv[1]);
exit(1);
}
skipuntil("objects[] = {");
while(getentry()) {
if(!*string){
index++;
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, index);
else
printf("#define %s %d\n", string, index);
index++;
}
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", index-1);
exit(0);
}
char line[LINSZ], *lp = line, *lp0 = line, *lpe = line;
int eof;
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;
}
char
nextchar()
{
if(lp == lpe){
readline();
lp = lp0;
}
return((lp == lpe) ? 0 : *lp++);
}
int
skipuntil(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;
}
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(isalpha(ch)){
ip = identif;
do {
if(ip < identif+NSZ-1) *ip++ = ch;
ch = nextchar();
} while(isalpha(ch) || isdigit(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;
}
}
}
}
void
capitalize(char *sp)
{
*sp = (char)toupper(*sp);
}