1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: mgfilt.c,v 1.6 2003/02/28 20:11:29 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Filter MGF stream, removing entities that won't be understood |
6 |
*/ |
7 |
|
8 |
#include <stdio.h> |
9 |
#include <stdlib.h> |
10 |
#include "parser.h" |
11 |
|
12 |
/* Number of entities for major versions */ |
13 |
short nentlist[MG_VMAJOR] = MG_NELIST; |
14 |
|
15 |
|
16 |
int |
17 |
put_entity(ac, av) /* general output routine */ |
18 |
register int ac; |
19 |
register char **av; |
20 |
{ |
21 |
while (ac-- > 0) { |
22 |
fputs(*av++, stdout); |
23 |
putchar(ac ? ' ' : '\n'); |
24 |
} |
25 |
return(MG_OK); |
26 |
} |
27 |
|
28 |
|
29 |
main(argc, argv) /* first argument is understood entities, comma-sep. */ |
30 |
int argc; |
31 |
char *argv[]; |
32 |
{ |
33 |
char *cp1, *cp2; |
34 |
int i, en; |
35 |
|
36 |
if (argc < 2) { |
37 |
fprintf(stderr, |
38 |
"Usage: %s { version | entity,list } [file ..]\n", |
39 |
argv[0]); |
40 |
exit(1); |
41 |
} |
42 |
if (isint(argv[1])) { |
43 |
i = atoi(argv[1]); |
44 |
if ((i < 1) | (i > MG_VMAJOR)) { |
45 |
fprintf(stderr, "%s: bad version number: %d\n", |
46 |
argv[0], i); |
47 |
exit(1); |
48 |
} |
49 |
for (en = nentlist[i-1]; en--; ) |
50 |
mg_ehand[en] = put_entity; |
51 |
mg_ehand[MG_E_INCLUDE] = NULL; /* expand include's */ |
52 |
} else |
53 |
for (cp1 = cp2 = argv[1]; *cp1; cp1 = cp2) { |
54 |
while (*cp2) { |
55 |
if (*cp2 == ',') { |
56 |
*cp2++ = '\0'; |
57 |
break; |
58 |
} |
59 |
cp2++; |
60 |
} |
61 |
en = mg_entity(cp1); |
62 |
if (en < 0) { |
63 |
fprintf(stderr, "%s: %s: no such entity\n", |
64 |
argv[0], cp1); |
65 |
exit(1); |
66 |
} |
67 |
mg_ehand[en] = put_entity; |
68 |
} |
69 |
mg_init(); |
70 |
if (argc < 3) { |
71 |
if (mg_load((char *)NULL) != MG_OK) |
72 |
exit(1); |
73 |
if (mg_nunknown) |
74 |
printf("%s %s: %u unknown entities on input\n", |
75 |
mg_ename[MG_E_COMMENT], |
76 |
argv[0], mg_nunknown); |
77 |
exit(0); |
78 |
} |
79 |
for (i = 2; i < argc; i++) { |
80 |
if (mg_load(argv[i]) != MG_OK) |
81 |
exit(1); |
82 |
if (mg_nunknown) { |
83 |
printf("%s %s: %u unknown entities\n", |
84 |
mg_ename[MG_E_COMMENT], |
85 |
argv[i], mg_nunknown); |
86 |
mg_nunknown = 0; |
87 |
} |
88 |
} |
89 |
exit(0); |
90 |
} |