cv/mgflib/mgfilt.c

#ifndef lint
static const char       RCSid[] = "$Id: mgfilt.c,v 1.6 2003/02/28 20:11:29 greg Exp $";
#endif
/*
 * Filter MGF stream, removing entities that won't be understood
 */

#include <stdio.h>
#include <stdlib.h>
#include "parser.h"

                                /* Number of entities for major versions */
short   nentlist[MG_VMAJOR] = MG_NELIST;


int
put_entity(ac, av)              /* general output routine */
register int    ac;
register char   **av;
{
        while (ac-- > 0) {
                fputs(*av++, stdout);
                putchar(ac ? ' ' : '\n');
        }
        return(MG_OK);
}


main(argc, argv)        /* first argument is understood entities, comma-sep. */
int     argc;
char    *argv[];
{
        char    *cp1, *cp2;
        int     i, en;

        if (argc < 2) {
                fprintf(stderr,
                        "Usage: %s { version | entity,list } [file ..]\n",
                                argv[0]);
                exit(1);
        }
        if (isint(argv[1])) {
                i = atoi(argv[1]);
                if ((i < 1) | (i > MG_VMAJOR)) {
                        fprintf(stderr, "%s: bad version number: %d\n",
                                        argv[0], i);
                        exit(1);
                }
                for (en = nentlist[i-1]; en--; )
                        mg_ehand[en] = put_entity;
                mg_ehand[MG_E_INCLUDE] = NULL;          /* expand include's */
        } else
                for (cp1 = cp2 = argv[1]; *cp1; cp1 = cp2) {
                        while (*cp2) {
                                if (*cp2 == ',') {
                                        *cp2++ = '\0';
                                        break;
                                }
                                cp2++;
                        }
                        en = mg_entity(cp1);
                        if (en < 0) {
                                fprintf(stderr, "%s: %s: no such entity\n",
                                                argv[0], cp1);
                                exit(1);
                        }
                        mg_ehand[en] = put_entity;
                }
        mg_init();
        if (argc < 3) {
                if (mg_load((char *)NULL) != MG_OK)
                        exit(1);
                if (mg_nunknown)
                        printf("%s %s: %u unknown entities on input\n",
                                        mg_ename[MG_E_COMMENT],
                                        argv[0], mg_nunknown);
                exit(0);
        }
        for (i = 2; i < argc; i++) {
                if (mg_load(argv[i]) != MG_OK)
                        exit(1);
                if (mg_nunknown) {
                        printf("%s %s: %u unknown entities\n",
                                        mg_ename[MG_E_COMMENT],
                                        argv[i], mg_nunknown);
                        mg_nunknown = 0;
                }
        }
        exit(0);
}
Revision:	1.7
Committed:	Sun Jul 27 22:12:02 2003 UTC (22 years, 3 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 1.6:	+2 -2 lines
Log Message:	Added grouping parens to reduce ambiguity warnings.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	1.7	static const char RCSid[] = "$Id: mgfilt.c,v 1.6 2003/02/28 20:11:29 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* Filter MGF stream, removing entities that won't be understood
6			*/
7
8			#include <stdio.h>
9	greg	1.6	#include <stdlib.h>
10	greg	1.1	#include "parser.h"
11
12	greg	1.4	/* Number of entities for major versions */
13			short nentlist[MG_VMAJOR] = MG_NELIST;
14	greg	1.1
15	greg	1.4
16	greg	1.1	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	greg	1.2	main(argc, argv) /* first argument is understood entities, comma-sep. */
30	greg	1.1	int argc;
31	greg	1.2	char *argv[];
32	greg	1.1	{
33	greg	1.2	char cp1, cp2;
34	greg	1.1	int i, en;
35
36	greg	1.2	if (argc < 2) {
37	greg	1.4	fprintf(stderr,
38			"Usage: %s { version \| entity,list } [file ..]\n",
39			argv[0]);
40	greg	1.2	exit(1);
41			}
42	greg	1.4	if (isint(argv[1])) {
43			i = atoi(argv[1]);
44	schorsch	1.7	if ((i < 1) \| (i > MG_VMAJOR)) {
45	greg	1.4	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	greg	1.5	mg_ehand[MG_E_INCLUDE] = NULL; /* expand include's */
52	greg	1.4	} 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	greg	1.2	}
61	greg	1.4	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	greg	1.2	}
69	greg	1.1	mg_init();
70	greg	1.3	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	greg	1.2	if (mg_load(argv[i]) != MG_OK)
81			exit(1);
82	greg	1.3	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	greg	1.2	exit(0);
90	greg	1.1	}