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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
#include "cache.h"
#include "parse-options.h"
#include "string-list.h"
static int boolean = 0;
static int integer = 0;
static unsigned long magnitude = 0;
static timestamp_t timestamp;
static int abbrev = 7;
static int verbose = -1; /* unspecified */
static int dry_run = 0, quiet = 0;
static char *string = NULL;
static char *file = NULL;
static int ambiguous;
static struct string_list list = STRING_LIST_INIT_NODUP;
static struct {
int called;
const char *arg;
int unset;
} length_cb;
static int length_callback(const struct option *opt, const char *arg, int unset)
{
length_cb.called = 1;
length_cb.arg = arg;
length_cb.unset = unset;
if (unset)
return 1; /* do not support unset */
*(int *)opt->value = strlen(arg);
return 0;
}
static int number_callback(const struct option *opt, const char *arg, int unset)
{
*(int *)opt->value = strtol(arg, NULL, 10);
return 0;
}
static int collect_expect(const struct option *opt, const char *arg, int unset)
{
struct string_list *expect;
struct string_list_item *item;
struct strbuf label = STRBUF_INIT;
const char *colon;
if (!arg || unset)
die("malformed --expect option");
expect = (struct string_list *)opt->value;
colon = strchr(arg, ':');
if (!colon)
die("malformed --expect option, lacking a colon");
strbuf_add(&label, arg, colon - arg);
item = string_list_insert(expect, strbuf_detach(&label, NULL));
if (item->util)
die("malformed --expect option, duplicate %s", label.buf);
item->util = (void *)arg;
return 0;
}
__attribute__((format (printf,3,4)))
static void show(struct string_list *expect, int *status, const char *fmt, ...)
{
struct string_list_item *item;
struct strbuf buf = STRBUF_INIT;
va_list args;
va_start(args, fmt);
strbuf_vaddf(&buf, fmt, args);
va_end(args);
if (!expect->nr)
printf("%s\n", buf.buf);
else {
char *colon = strchr(buf.buf, ':');
if (!colon)
die("malformed output format, output lacking colon: %s", fmt);
*colon = '\0';
item = string_list_lookup(expect, buf.buf);
*colon = ':';
if (!item)
; /* not among entries being checked */
else {
if (strcmp((const char *)item->util, buf.buf)) {
printf("-%s\n", (char *)item->util);
printf("+%s\n", buf.buf);
*status = 1;
}
}
}
strbuf_release(&buf);
}
int cmd_main(int argc, const char **argv)
{
const char *prefix = "prefix/";
const char *usage[] = {
"test-parse-options <options>",
"",
"A helper function for the parse-options API.",
NULL
};
struct string_list expect = STRING_LIST_INIT_NODUP;
struct option options[] = {
OPT_BOOL(0, "yes", &boolean, "get a boolean"),
OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"),
{ OPTION_SET_INT, 'B', "no-fear", &boolean, NULL,
"be brave", PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
OPT_COUNTUP('b', "boolean", &boolean, "increment by one"),
OPT_BIT('4', "or4", &boolean,
"bitwise-or boolean with ...0100", 4),
OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4),
OPT_GROUP(""),
OPT_INTEGER('i', "integer", &integer, "get a integer"),
OPT_INTEGER('j', NULL, &integer, "get a integer, too"),
OPT_MAGNITUDE('m', "magnitude", &magnitude, "get a magnitude"),
OPT_SET_INT(0, "set23", &integer, "set integer to 23", 23),
OPT_DATE('t', NULL, ×tamp, "get timestamp of <time>"),
OPT_CALLBACK('L', "length", &integer, "str",
"get length of <str>", length_callback),
OPT_FILENAME('F', "file", &file, "set file to <file>"),
OPT_GROUP("String options"),
OPT_STRING('s', "string", &string, "string", "get a string"),
OPT_STRING(0, "string2", &string, "str", "get another string"),
OPT_STRING(0, "st", &string, "st", "get another string (pervert ordering)"),
OPT_STRING('o', NULL, &string, "str", "get another string"),
OPT_NOOP_NOARG(0, "obsolete"),
OPT_STRING_LIST(0, "list", &list, "str", "add str to list"),
OPT_GROUP("Magic arguments"),
OPT_ARGUMENT("quux", "means --quux"),
OPT_NUMBER_CALLBACK(&integer, "set integer to NUM",
number_callback),
{ OPTION_COUNTUP, '+', NULL, &boolean, NULL, "same as -b",
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH },
{ OPTION_COUNTUP, 0, "ambiguous", &ambiguous, NULL,
"positive ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
{ OPTION_COUNTUP, 0, "no-ambiguous", &ambiguous, NULL,
"negative ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
OPT_GROUP("Standard options"),
OPT__ABBREV(&abbrev),
OPT__VERBOSE(&verbose, "be verbose"),
OPT__DRY_RUN(&dry_run, "dry run"),
OPT__QUIET(&quiet, "be quiet"),
OPT_CALLBACK(0, "expect", &expect, "string",
"expected output in the variable dump",
collect_expect),
OPT_END(),
};
int i;
int ret = 0;
argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
if (length_cb.called) {
const char *arg = length_cb.arg;
int unset = length_cb.unset;
show(&expect, &ret, "Callback: \"%s\", %d",
(arg ? arg : "not set"), unset);
}
show(&expect, &ret, "boolean: %d", boolean);
show(&expect, &ret, "integer: %d", integer);
show(&expect, &ret, "magnitude: %lu", magnitude);
show(&expect, &ret, "timestamp: %"PRItime, timestamp);
show(&expect, &ret, "string: %s", string ? string : "(not set)");
show(&expect, &ret, "abbrev: %d", abbrev);
show(&expect, &ret, "verbose: %d", verbose);
show(&expect, &ret, "quiet: %d", quiet);
show(&expect, &ret, "dry run: %s", dry_run ? "yes" : "no");
show(&expect, &ret, "file: %s", file ? file : "(not set)");
for (i = 0; i < list.nr; i++)
show(&expect, &ret, "list: %s", list.items[i].string);
for (i = 0; i < argc; i++)
show(&expect, &ret, "arg %02d: %s", i, argv[i]);
return ret;
}
|
