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uniq: style put main at bottom

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This commit is contained in:
Hiltjo Posthuma 2015-03-07 14:02:04 +01:00
parent 160709734c
commit 695940d50c
1 changed files with 57 additions and 61 deletions
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118
uniq.c
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@ -6,10 +6,6 @@
#include "util.h" #include "util.h"
static void uniqline(FILE *, char *);
static void uniq(FILE *, FILE *);
static void uniqfinish(FILE *);
static const char *countfmt = ""; static const char *countfmt = "";
static int dflag = 0; static int dflag = 0;
static int uflag = 0; static int uflag = 0;
@ -20,63 +16,6 @@ static char *prevline = NULL;
static char *prevoffset = NULL; static char *prevoffset = NULL;
static long prevlinecount = 0; static long prevlinecount = 0;
static void
usage(void)
{
eprintf("usage: %s [-c] [-d | -u] [-f fields] [-s chars]"
" [input [output]]\n", argv0);
}
int
main(int argc, char *argv[])
{
FILE *fp = stdin, *ofp = stdout;
ARGBEGIN {
case 'c':
countfmt = "%7ld ";
break;
case 'd':
dflag = 1;
break;
case 'u':
uflag = 1;
break;
case 'f':
fskip = estrtonum(EARGF(usage()), 0, INT_MAX);
break;
case 's':
sskip = estrtonum(EARGF(usage()), 0, INT_MAX);
break;
default:
usage();
} ARGEND;
if (argc > 2)
usage();
if (argc == 0) {
uniq(stdin, stdout);
} else if (argc >= 1) {
if (strcmp(argv[0], "-") && !(fp = fopen(argv[0], "r")))
eprintf("fopen %s:", argv[0]);
if (argc == 2) {
if (strcmp(argv[1], "-") &&
!(ofp = fopen(argv[1], "w")))
eprintf("fopen %s:", argv[1]);
}
uniq(fp, ofp);
if (fp != stdin)
fclose(fp);
} else
usage();
uniqfinish(ofp);
if (ofp != stdout)
fclose(ofp);
return 0;
}
static char * static char *
uniqskip(char *l) uniqskip(char *l)
{ {
@ -139,3 +78,60 @@ uniqfinish(FILE *ofp)
{ {
uniqline(ofp, NULL); uniqline(ofp, NULL);
} }
static void
usage(void)
{
eprintf("usage: %s [-c] [-d | -u] [-f fields] [-s chars]"
" [input [output]]\n", argv0);
}
int
main(int argc, char *argv[])
{
FILE *fp = stdin, *ofp = stdout;
ARGBEGIN {
case 'c':
countfmt = "%7ld ";
break;
case 'd':
dflag = 1;
break;
case 'u':
uflag = 1;
break;
case 'f':
fskip = estrtonum(EARGF(usage()), 0, INT_MAX);
break;
case 's':
sskip = estrtonum(EARGF(usage()), 0, INT_MAX);
break;
default:
usage();
} ARGEND;
if (argc > 2)
usage();
if (argc == 0) {
uniq(stdin, stdout);
} else if (argc >= 1) {
if (strcmp(argv[0], "-") && !(fp = fopen(argv[0], "r")))
eprintf("fopen %s:", argv[0]);
if (argc == 2) {
if (strcmp(argv[1], "-") &&
!(ofp = fopen(argv[1], "w")))
eprintf("fopen %s:", argv[1]);
}
uniq(fp, ofp);
if (fp != stdin)
fclose(fp);
} else
usage();
uniqfinish(ofp);
if (ofp != stdout)
fclose(ofp);
return 0;
}