1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* makedefs.c - version 1.0.2 */
/* $FreeBSD: src/games/hack/makedefs.c,v 1.4 1999/11/16 02:57:15 billf Exp $ */
/* $DragonFly: src/games/hack/makedefs.c,v 1.3 2006/08/21 19:45:32 pavalos Exp $ */
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* construct definitions of object constants */
#define LINSZ 1000
#define STRSZ 40
int fd;
char string[STRSZ];
static void readline(void);
static char nextchar(void);
static bool skipuntil(const char *);
static bool getentry(void);
static void capitalize(char *);
static bool letter(char);
static bool digit(char);
int
main(int argc, char **argv)
{
int idx = 0;
int propct = 0;
char *sp;
if (argc != 2) {
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) {
idx++;
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, idx);
else
printf("#define %s %d\n", string, idx);
idx++;
}
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", idx - 1);
exit(0);
}
char line[LINSZ], *lp = line, *lp0 = line, *lpe = line;
int eof;
static void
readline(void)
{
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(void)
{
if (lp == lpe) {
readline();
lp = lp0;
}
return ((lp == lpe) ? 0 : *lp++);
}
static bool
skipuntil(const char *s)
{
const char *sp0;
char *sp1;
loop:
while (*s != nextchar())
if (eof) {
printf("Cannot skipuntil %s\n", s);
exit(1);
}
if ((int)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 ((int)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 bool
getentry(void)
{
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
*/
for (;;) {
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"))
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(char *sp)
{
if ('a' <= *sp && *sp <= 'z')
*sp += 'A' - 'a';
}
static bool
letter(char ch)
{
return (('a' <= ch && ch <= 'z') ||
('A' <= ch && ch <= 'Z'));
}
static bool
digit(char ch)
{
return ('0' <= ch && ch <= '9');
}
|
