sbase/wc.c
FRIGN 9a074144c9 Remove handrolled strcmp()'s
Favor readability over bare-metal.
2015-05-21 15:43:38 +01:00

107 lines
1.8 KiB
C

/* See LICENSE file for copyright and license details. */
#include <string.h>
#include "utf.h"
#include "util.h"
static int lflag = 0;
static int wflag = 0;
static char cmode = 0;
static size_t tc = 0, tl = 0, tw = 0;
static void
output(const char *str, size_t nc, size_t nl, size_t nw)
{
int noflags = !cmode && !lflag && !wflag;
int first = 1;
if (lflag || noflags)
printf("%*.1zu", first ? (first = 0) : 7, nl);
if (wflag || noflags)
printf("%*.1zu", first ? (first = 0) : 7, nw);
if (cmode || noflags)
printf("%*.1zu", first ? (first = 0) : 7, nc);
if (str)
printf(" %s", str);
putchar('\n');
}
static void
wc(FILE *fp, const char *str)
{
int word = 0, rlen;
Rune c;
size_t nc = 0, nl = 0, nw = 0;
while ((rlen = efgetrune(&c, fp, str))) {
nc += (cmode == 'c' || !cmode) ? rlen : (c != Runeerror);
if (c == '\n')
nl++;
if (!isspacerune(c))
word = 1;
else if (word) {
word = 0;
nw++;
}
}
if (word)
nw++;
tc += nc;
tl += nl;
tw += nw;
output(str, nc, nl, nw);
}
static void
usage(void)
{
eprintf("usage: %s [-c | -m] [-lw] [file ...]\n", argv0);
}
int
main(int argc, char *argv[])
{
FILE *fp;
int many;
int ret = 0;
ARGBEGIN {
case 'c':
cmode = 'c';
break;
case 'm':
cmode = 'm';
break;
case 'l':
lflag = 1;
break;
case 'w':
wflag = 1;
break;
default:
usage();
} ARGEND;
if (!argc) {
wc(stdin, NULL);
} else {
for (many = (argc > 1); *argv; argc--, argv++) {
if (!strcmp(*argv, "-")) {
*argv = "<stdin>";
fp = stdin;
} else if (!(fp = fopen(*argv, "r"))) {
weprintf("fopen %s:", *argv);
ret = 1;
continue;
}
wc(fp, *argv);
if (fp != stdin && fshut(fp, *argv))
ret = 1;
}
if (many)
output("total", tc, tl, tw);
}
return !!(fshut(stdin, "<stdin>") + fshut(stdout, "<stdout>")) || ret;
}