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#ifndef lint |
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static const char RCSid[] = "$Id: mgfilt.c,v 1.6 2003/02/28 20:11:29 greg Exp $"; |
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#endif |
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/* |
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* Filter MGF stream, removing entities that won't be understood |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include "parser.h" |
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|
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/* Number of entities for major versions */ |
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short nentlist[MG_VMAJOR] = MG_NELIST; |
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|
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|
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int |
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put_entity(ac, av) /* general output routine */ |
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register int ac; |
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register char **av; |
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{ |
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while (ac-- > 0) { |
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fputs(*av++, stdout); |
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putchar(ac ? ' ' : '\n'); |
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} |
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return(MG_OK); |
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} |
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|
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|
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main(argc, argv) /* first argument is understood entities, comma-sep. */ |
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int argc; |
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char *argv[]; |
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{ |
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char *cp1, *cp2; |
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int i, en; |
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|
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if (argc < 2) { |
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fprintf(stderr, |
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"Usage: %s { version | entity,list } [file ..]\n", |
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argv[0]); |
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exit(1); |
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} |
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if (isint(argv[1])) { |
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i = atoi(argv[1]); |
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if ((i < 1) | (i > MG_VMAJOR)) { |
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fprintf(stderr, "%s: bad version number: %d\n", |
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argv[0], i); |
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exit(1); |
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} |
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for (en = nentlist[i-1]; en--; ) |
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mg_ehand[en] = put_entity; |
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mg_ehand[MG_E_INCLUDE] = NULL; /* expand include's */ |
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} else |
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for (cp1 = cp2 = argv[1]; *cp1; cp1 = cp2) { |
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while (*cp2) { |
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if (*cp2 == ',') { |
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*cp2++ = '\0'; |
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break; |
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} |
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cp2++; |
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} |
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en = mg_entity(cp1); |
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if (en < 0) { |
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fprintf(stderr, "%s: %s: no such entity\n", |
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argv[0], cp1); |
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exit(1); |
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} |
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mg_ehand[en] = put_entity; |
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} |
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mg_init(); |
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if (argc < 3) { |
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if (mg_load((char *)NULL) != MG_OK) |
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exit(1); |
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if (mg_nunknown) |
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printf("%s %s: %u unknown entities on input\n", |
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mg_ename[MG_E_COMMENT], |
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argv[0], mg_nunknown); |
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exit(0); |
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} |
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for (i = 2; i < argc; i++) { |
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if (mg_load(argv[i]) != MG_OK) |
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exit(1); |
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if (mg_nunknown) { |
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printf("%s %s: %u unknown entities\n", |
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mg_ename[MG_E_COMMENT], |
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argv[i], mg_nunknown); |
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mg_nunknown = 0; |
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} |
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} |
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exit(0); |
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} |
