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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
#include <stdlib.h>
#include <stdio.h>
#include <getopt.h>
#include <errno.h>
#include <string.h>
#include "util.h"
#include "logging.h"
#include "index.h"
static void write_index(const char *filename)
{
struct index_node *index;
char *line, *pos;
FILE *cfile;
unsigned int linenum = 0;
cfile = fopen(filename, "w");
if (!cfile)
fatal("Could not open %s for writing: %s\n",
filename, strerror(errno));
index = index_create();
while((line = getline_wrapped(stdin, &linenum))) {
pos = strchr(line, ' ');
*pos++ = '\0';
index_insert(index, line, pos, linenum);
free(line);
}
index_write(index, cfile);
index_destroy(index);
fclose(cfile);
}
static struct index_file *open_index(const char *filename)
{
struct index_file *index;
index = index_file_open(filename);
if (!index) {
if (errno == EINVAL)
fatal("%s has wrong magic or version number", filename);
fatal("Could not open %s for reading: %s\n",
filename, strerror(errno));
}
return index;
}
static void dump_index(const char *filename)
{
struct index_file *index = open_index(filename);
index_dump(index, stdout, "");
index_file_close(index);
}
static void search_index(const char *filename, char *key)
{
struct index_file *index = open_index(filename);
char *value;
value = index_search(index, key);
if (value)
printf("Found value:\n%s\n", value);
else
printf("Not found.\n");
free(value);
index_file_close(index);
}
static void searchwild_index(const char *filename, char *key)
{
struct index_file *index = open_index(filename);
struct index_value *values, *v;
values = index_searchwild(index, key);
if (values)
printf("Found value(s):\n");
else
printf("Not found.\n");
for (v = values; v; v = v->next)
printf("%s\n", v->value);
index_values_free(values);
index_file_close(index);
}
static void print_usage(const char *progname)
{
fprintf(stderr,
"Usage: %s [MODE] [FILE] ...\n"
" -o, --output <outfile>\n"
" -d, --dump <infile>\n"
" -s, --search <key> <infile>\n"
" -w, --searchwild <key> <infile>\n"
,progname);
exit(1);
}
static struct option options[] = {
{ "output", 0, NULL, 'o' },
{ "dump", 0, NULL, 'd' },
{ "search", 1, NULL, 's' },
{ "searchwild", 1, NULL, 'w' },
};
int main(int argc, char *argv[])
{
int opt;
char mode = 0;
char *filename = NULL;
char *key = NULL;
while ((opt = getopt_long(argc, argv, "ods:w:", options, NULL))
!= -1) {
switch (opt) {
case 'o':
mode = 'o';
break;
case 'd':
mode = 'd';
break;
case 's':
mode = 's';
key = optarg;
break;
case 'w':
mode = 'w';
key = optarg;
break;
default:
print_usage(argv[0]);
}
}
if (!mode)
print_usage(argv[0]);
if (optind >= argc)
print_usage(argv[0]);
filename = argv[optind];
switch(mode) {
case 'o':
write_index(filename);
break;
case 'd':
dump_index(filename);
break;
case 's':
search_index(filename, key);
break;
case 'w':
searchwild_index(filename, key);
break;
}
return 0;
}
|
