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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#include <assert.h>
#include <ctype.h>
#include <getopt.h>
#include <limits.h>
#include <pwd.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "util/debug.h"
#include "util/error.h"
#include "util/loop_files.h"
#include "util/map.h"
#include "util/versie.h"
#include "io/read_file.h"
static int modeMap;
static void usage(FILE *f) {
fprintf(f,
"Gebruik: toilet [-nchV] [BESTAND]...\n"
"\n"
"Toon de hoeveelheid regels, woorden en beten for elk BESTAND\n"
"\n"
" -c Geef het aantal beten weer\n"
" -w Geef het aantal woorden weer\n"
" -l Geef het aantal regels weer\n"
" -h Toon deze hulptekst\n"
" -V Toon versienummer\n");
}
enum MODE {
M_LINES = 1 << 0,
M_WORDS = 1 << 1,
M_BYTES = 1 << 2,
};
// Returns pointer to argument array containing the file names
static char** parse_options(int argc, char **argv, int *modeMap) {
int opt;
while ((opt = getopt(argc, argv, "cwlhV")) != -1) {
switch (opt) {
case 'c':
*modeMap |= M_BYTES;
break;
case 'w':
*modeMap |= M_WORDS;
break;
case 'l':
*modeMap |= M_LINES;
break;
case 'h':
usage(stdout);
exit(0);
case 'V':
drukkedoos_print_versie(stdout);
exit(0);
case '?':
fprintf(stderr, "toilet: Ongeldige optie: -%c\n", optopt);
usage(stderr);
exit(1);
}
}
return argv + optind;
}
static size_t get_count(enum MODE mode, struct filebuf *fb) {
switch (mode) {
case M_BYTES:
return fb->sz;
case M_WORDS: {
#define IN(i) (i < fb->sz)
size_t words = 0;
// (c) Tom Forging
for (size_t i = 0; IN(i);) {
size_t previ = i;
while (IN(i) && !isspace(fb->buf[i])) i++;
words += i != previ;
while (IN(i) && isspace(fb->buf[i])) i++;
}
return words;
#undef IN
}
case M_LINES: {
size_t lines = 0;
size_t i = 0;
while (i != fb->sz) {
if (fb->buf[i] == '\n') lines++;
i++;
}
// handle case if file does not have trailing newline
if (fb->buf[i - 1] != '\n') {
lines++;
}
return lines;
}
default:
assert(false);
}
}
static int process(struct filebuf *fb, char *fname, bool) {
for (enum MODE mode = 1; mode <= M_BYTES; mode <<= 1) {
if (mode & modeMap) {
const size_t count = get_count(mode, fb);
printf("% 10li ", count);
}
}
printf("%s\n", fname);
free_filebuf(fb);
return 0;
}
// TODO: be smarter, toilet doesn't have to read the whole file in memory (for
// unmappable files)
int entry_toilet(int argc, char **argv) {
modeMap = 0;
char **args = parse_options(argc, argv, &modeMap);
if (modeMap == 0) {
modeMap = INT_MAX;
}
return loop_files(args, process);
}
|
