1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/* wc.c - Word count
*
* Copyright 2011 Rob Landley <rob@landley.net>
*
* See http://opengroup.org/onlinepubs/9699919799/utilities/wc.html
USE_WC(NEWTOY(wc, USE_TOYBOX_I18N("m")"cwl", TOYFLAG_USR|TOYFLAG_BIN))
config WC
bool "wc"
default y
help
usage: wc -lwcm [FILE...]
Count lines, words, and characters in input.
-l show lines
-w show words
-c show bytes
-m show characters
By default outputs lines, words, bytes, and filename for each
argument (or from stdin if none). Displays only either bytes
or characters.
*/
#define FOR_wc
#include "toys.h"
GLOBALS(
unsigned long totals[3];
)
static void show_lengths(unsigned long *lengths, char *name)
{
int i, nospace = 1;
for (i=0; i<3; i++) {
if (!toys.optflags || (toys.optflags&(1<<i))) {
xprintf(" %ld"+nospace, lengths[i]);
nospace = 0;
}
TT.totals[i] += lengths[i];
}
if (*toys.optargs) xprintf(" %s", name);
xputc('\n');
}
static void do_wc(int fd, char *name)
{
int i, len, clen=1, space;
unsigned long word=0, lengths[]={0,0,0};
for (;;) {
len = read(fd, toybuf, sizeof(toybuf));
if (len<0) {
perror_msg("%s",name);
toys.exitval = 1;
}
if (len<1) break;
for (i=0; i<len; i+=clen) {
wchar_t wchar;
if (CFG_TOYBOX_I18N && (toys.optflags&FLAG_m)) {
clen = mbrtowc(&wchar, toybuf+i, len-i, 0);
if (clen == -1) {
if (i != len-1) {
clen = 1;
continue;
} else break;
}
if (clen == -2) break;
if (clen == 0) clen=1;
space = iswspace(wchar);
} else space = isspace(toybuf[i]);
if (toybuf[i]==10) lengths[0]++;
if (space) word=0;
else {
if (!word) lengths[1]++;
word=1;
}
lengths[2]++;
}
}
show_lengths(lengths, name);
}
void wc_main(void)
{
toys.optflags |= (toys.optflags&8)>>1;
loopfiles(toys.optargs, do_wc);
if (toys.optc>1) show_lengths(TT.totals, "total");
}
|
