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b2/: add options to set file type on the command line

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This commit is contained in:
Werner Almesberger 2012-04-30 20:11:53 -03:00
parent e99a9f4705
commit 450769e031
2 changed files with 21 additions and 13 deletions
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2
b2/Makefile
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@ -83,4 +83,4 @@ spotless: clean
# ----- Experiments ----------------------------------------------------------- # ----- Experiments -----------------------------------------------------------
try: try:
$(VALGRIND) ./boom HIERARCHY CHAR $(VALGRIND) ./boom HIERARCHY -c CHAR

30
b2/boom.c
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@ -13,6 +13,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <string.h>
#include <fcntl.h> #include <fcntl.h>
#include "lang.h" #include "lang.h"
@ -36,26 +37,33 @@ static void open_stdin(const char *name)
static void usage(const char *name) static void usage(const char *name)
{ {
fprintf(stderr, "usage: %s [file ...]\n", name); fprintf(stderr,
"usage: %s file [[-type] file ...] ...\n\n"
" file types:\n"
" -c characteristics\n"
" -i inventory\n"
, name);
exit(1); exit(1);
} }
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
void (*parse)(void) = parse_hierarchy;
int i; int i;
switch (argc) { for (i = 1; i != argc; i++) {
case 1: if (*argv[i] == '-') {
break; if (!strcmp(argv[i], "-c"))
default: parse = parse_characteristics;
open_stdin(argv[1]); else if (!strcmp(argv[i], "-i"))
break; parse = parse_inventory;
} else
parse_hierarchy(); usage(*argv);
for (i = 2; i < argc; i++) { } else {
open_stdin(argv[i]); open_stdin(argv[i]);
parse_characteristics(); parse();
}
} }
return 0; return 0;
} }