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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
#ifndef _LIBHX_OPTION_H
#define _LIBHX_OPTION_H 1
#ifdef __cplusplus
# include <cstddef>
# include <cstdio>
#else
# include <stddef.h>
# include <stdio.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __libhx_internal_hxmc_t_defined
#define __libhx_internal_hxmc_t_defined 1
typedef char hxmc_t;
#endif
struct HXoption;
/*
* FORMAT.C
*/
extern struct HXformat_map *HXformat_init(void);
extern void HXformat_free(struct HXformat_map *);
extern int HXformat_add(struct HXformat_map *, const char *, const void *,
unsigned int);
extern int HXformat_aprintf(const struct HXformat_map *,
hxmc_t **, const char *);
extern int HXformat_sprintf(const struct HXformat_map *,
char *, size_t, const char *);
extern int HXformat_fprintf(const struct HXformat_map *,
FILE *, const char *);
/*
* OPT.C
*/
/**
* Available types for struct HXoption.type.
* %HXTYPE_NONE: [-o] (int *) No argument; counts presence.
* %HXTYPE_VAL: [-o] (int *) Set to value in .val.
* %HXTYPE_SVAL: [-o] (const char *) Set to value in .uptr.
* %HXTYPE_BOOL: [fo] (int *) Parse argument as boolean
* ("yes", "no", "true", "false", 0 or non-zero)
* %HXTYPE_BYTE: [fo] (unsigned char *) Take first char of argument
* %HXTYPE_UCHAR: [fo] (unsigned char *) An integer.
* %HXTYPE_CHAR: [fo] (char *) An integer.
* %HXTYPE_USHORT: [fo] (unsigned short *) An integer.
* %HXTYPE_SHORT: [fo] (short *) An integer.
* %HXTYPE_UINT: [fo] (unsigned int *) An integer.
* %HXTYPE_INT: [fo] (int *) An integer.
* %HXTYPE_ULONG: [fo] (unsigned long *) An integer.
* %HXTYPE_LONG: [fo] (long *) An integer.
* %HXTYPE_ULLONG: [fo] (unsigned long long *) An integer.
* %HXTYPE_LLONG: [fo] (long long *) An integer.
* %HXTYPE_FLOAT: [fo] (float *) Read a floating point number
* %HXTYPE_DOUBLE: [fo] (double *) Read a floating point number
* %HXTYPE_STRING: [fo] (char **) Any string.
* %HXTYPE_STRP: [f-] (const char *const *) A string.
* %HXTYPE_STRDQ: [-o] (struct HXdeque *) A string.
* %HXTYPE_UINT8: [-o] (uint8_t *) An integer.
* %HXTYPE_UINT16: [-o] (uint8_t *) An integer.
* %HXTYPE_UINT32: [-o] (uint8_t *) An integer.
* %HXTYPE_UINT64: [-o] (uint8_t *) An integer.
* %HXTYPE_INT8: [-o] (uint8_t *) An integer.
* %HXTYPE_INT16: [-o] (uint8_t *) An integer.
* %HXTYPE_INT32: [-o] (uint8_t *) An integer.
* %HXTYPE_INT64: [-o] (uint8_t *) An integer.
* %HXTYPE_MCSTR: [-o] (hxmc_t *) A string.
* %HXTYPE_XSNTMARK: [-o] Internal sentinal marker (used in HXOPT_TABLEEND)
* %HXTYPE_XHELP: [-o] Internal helper marker (used in HXOPT_AUTOHELP)
* %HXTYPE_SIZE_T: [-o] (size_t *) An integer.
*
* Type expected of struct HXoption.ptr is given in ().
* HX_getopt (o) and HXformat_* (f) support different sets, marked with [].
*/
enum HX_option_type {
HXTYPE_NONE = 0,
HXTYPE_VAL,
HXTYPE_SVAL,
HXTYPE_BOOL,
HXTYPE_BYTE,
HXTYPE_UCHAR, /* 5 */
HXTYPE_CHAR,
HXTYPE_USHORT,
HXTYPE_SHORT,
HXTYPE_UINT,
HXTYPE_INT, /* 10 */
HXTYPE_ULONG,
HXTYPE_LONG,
HXTYPE_ULLONG,
HXTYPE_LLONG,
HXTYPE_FLOAT, /* 15 */
HXTYPE_DOUBLE,
HXTYPE_STRING,
HXTYPE_STRP, /* (const char **) */
HXTYPE_STRDQ,
HXTYPE_UINT8, /* 20 */
HXTYPE_UINT16,
HXTYPE_UINT32,
HXTYPE_UINT64,
HXTYPE_INT8,
HXTYPE_INT16, /* 25 */
HXTYPE_INT32,
HXTYPE_INT64,
HXTYPE_MCSTR,
HXTYPE_XSNTMARK,
HXTYPE_XHELP, /* 30 */
HXTYPE_SIZE_T,
};
/**
* Extra flags to be OR'ed into struct HXoption.type.
* %HXOPT_OPTIONAL: argument to option is optional
* (it's bad taste to use this)
* %HXOPT_INC: increase variable pointed to by .ptr.
* (only applies to %HXTYPE_NONE)
* %HXOPT_DEC: increase variable pointed to by .ptr.
* (only applies to %HXTYPE_NONE)
* %HXOPT_NOT: negate input (*ptr), this is done before OR/AND
* %HXOPT_OR: OR *ptr by argument
* %HXOPT_AND: AND *ptr by argument
* %HXOPT_XOR: XOR *ptr by argument
*/
enum {
HXOPT_OPTIONAL = 1 << 6,
HXOPT_INC = 1 << 7,
HXOPT_DEC = 1 << 8,
HXOPT_NOT = 1 << 9,
HXOPT_OR = 1 << 10,
HXOPT_AND = 1 << 11,
HXOPT_XOR = 1 << 12,
};
/**
* Flags (4th arg) to HX_getopt.
* %HXOPT_PTHRU: pass-through unknown options to new argv
* %HXOPT_DESTROY_OLD: destroy old argv after parsing is successful
* %HXOPT_QUIET: do not output any warnings to stderr
* %HXOPT_HELPONERR: print out help when a parsing error occurs
* %HXOPT_USAGEONERR: print out short usage when a parsing error occurs
* %HXOPT_RQ_ORDER: require option order/POSIX mode:
* first non-option terminates option processing
*/
enum {
HXOPT_PTHRU = 1 << 0,
HXOPT_DESTROY_OLD = 1 << 1,
HXOPT_QUIET = 1 << 2,
HXOPT_HELPONERR = 1 << 3,
HXOPT_USAGEONERR = 1 << 4,
HXOPT_RQ_ORDER = 1 << 5,
};
/**
* (Positive-ranged) return values for HX_getopt.
* %HXOPT_ERR_SUCCESS: success
* %HXOPT_ERR_UNKN: unknown option was encountered
* %HXOPT_ERR_VOID: long option takes no value
* %HXOPT_ERR_MIS: option requires a value argument
* %HXOPT_ERR_AMBIG: long option abbreviation was ambiguous
*/
enum {
HXOPT_ERR_SUCCESS = 0,
HXOPT_ERR_UNKN,
HXOPT_ERR_VOID,
HXOPT_ERR_MIS,
HXOPT_ERR_AMBIG,
};
/**
* Extra flags to be OR'ed into HXformat_add()'s 4th arg.
* %HXFORMAT_IMMED: do not dereference the 4th arg to get at the value
*/
enum {
HXFORMAT_IMMED = 1 << 13,
};
/**
* Flags for HX_shconfig_pv()
* %SHCONF_ONE: only read one configuration file
*/
enum {
SHCONF_ONE = 1 << 0,
};
/**
* Flags in struct HXoptcb.flags
* %HXOPTCB_BY_LONG: cb was called by invocation of @current->ln
* %HXOPTCB_BY_SHORT: cb was called by invocation of @current->sh
*/
enum {
HXOPTCB_BY_LONG = 1 << 0,
HXOPTCB_BY_SHORT = 1 << 1,
};
struct HXoptcb {
const struct HXoption *table, *current;
const char *data;
union {
double data_dbl;
long data_long;
};
unsigned int flags;
};
/**
* @ln: long option string (without "--"), or %NULL
* @sh: short option character, or '\0'
* @type: type of variable pointed to by .ptr
* @ptr: pointer to variable to set/update
* @uptr: freeform user-supplied pointer;
* in case of %HXTYPE_SVAL, this is the specific value to set
* @cb: callback function to invoke, or %NULL
* @val: specific value to set if type == HXTYPE_VAL
* @help: help string to display
* @htyp: type string to show in option's help
*/
struct HXoption {
const char *ln;
char sh;
unsigned int type;
void *ptr, *uptr;
void (*cb)(const struct HXoptcb *);
int val;
const char *help, *htyp;
};
extern int HX_getopt(const struct HXoption *, int *, const char ***,
unsigned int);
extern void HX_getopt_help(const struct HXoptcb *, FILE *);
extern void HX_getopt_help_cb(const struct HXoptcb *);
extern void HX_getopt_usage(const struct HXoptcb *, FILE *);
extern void HX_getopt_usage_cb(const struct HXoptcb *);
extern int HX_shconfig(const char *, const struct HXoption *);
extern struct HXmap *HX_shconfig_map(const char *);
extern int HX_shconfig_pv(const char **, const char *,
const struct HXoption *, unsigned int);
extern void HX_shconfig_free(const struct HXoption *);
#ifdef __cplusplus
} /* extern "C" */
#endif
#ifndef __cplusplus
# define HXOPT_AUTOHELP \
{.ln = "help", .sh = '?', .type = HXTYPE_XHELP, \
.cb = HX_getopt_help_cb, .help = "Show this help message"}, \
{.ln = "usage", .type = HXTYPE_NONE, \
.cb = HX_getopt_usage_cb, \
.help = "Display brief usage message"}
# define HXOPT_TABLEEND {.type = HXTYPE_XSNTMARK}
#else
# define HXOPT_AUTOHELP \
{"help", '?', HXTYPE_XHELP, NULL, NULL, HX_getopt_help_cb, \
0, "Show this help message"}, \
{"usage", 0, HXTYPE_NONE, NULL, NULL, HX_getopt_usage_cb, \
0, "Display brief usage message"}
# define HXOPT_TABLEEND {NULL, 0, HXTYPE_XSNTMARK}
#endif
#endif /* _LIBHX_OPTION_H */
|
