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
|
/*
* File:
* options.h
* Supports option processing.
* Declaration functions are used to declare an option:
* - specify either var or handler, not both.
* - handler will be called just once.
*/
typedef enum option_class {
OPT_MISC, /* Miscellaneous options */
OPT_PAGE_FURNITURE, /* Options that affect page furniture */
OPT_TEXT_FORMAT, /* Options that affect text layout */
OPT_PRINT, /* Options that (de)select stuff to print */
OPT_PAGE_FORMAT, /* Options that affect overall page presentation */
OPT_OUTPUT /* Options that affect or control where output goes */
} option_class;
void setup_options(void);
void handle_string_options(char *);
unsigned int handle_options(int, char **);
void set_option_defaults(void);
void print_usage_msgs(option_class);
/*
* noparm option - option with no parameter
* If default_opt is true then the handler will always
* be called. It is up to the handler to work out if this
* option should be obeyed or not. This is intended to
* handle the case e.g. for -1, -2, -3 or -4 where
* -1 is the default - the handler will remember if
* any other option was invoked first. If invoked
* because of the default_opt flag then set_default will
* be used.
* Must specify a handler and a set_default.
*/
void noparm_option(char *c, char *s,
boolean default_opt,
void (*handler)(const char *p, const char *s),
void (*set_default)(void),
option_class class,
char *help_string);
/* option that takes an optional string */
void optional_string_option(char *c, char *s,
void (*handler)(const char *p, const char *s, char *value),
option_class class,
char *help_string);
/*
* boolean option - either y or n
*/
void boolean_option(char *c, char *s1, char *s2, boolean default_value,
boolean *var,
void (*handler)(const char *p, const char *s, boolean value),
void (*set_default)(boolean value),
option_class class,
char *true_help_string,
char *false_help_string);
void choice_option(char *c, char *s1, char *s2,
char choice1, char choice2,
char *var,
void (*handler)(const char *p, const char *s, char value),
void (*set_default)(char value),
option_class class,
char *choice1_help_string,
char *choice2_help_string);
/* char option - one of a set of characters */
void char_option(char *c, char *s, char default_value,
char *valid_set,
char *var,
void (*handler)(const char *p, const char *s, char value, char *var),
void (*set_default)(char value),
option_class class,
char *help_string);
/* short & int options */
void short_option(char *c, char *s, short default_value,
char *special, short special_value,
short min, short max,
short *var,
void (*handler)(const char *p, const char *s, short value, short min, short max),
void (*set_default)(short value),
option_class class,
char *help_string,
char *special_help_string);
void int_option(char *c, char *s, int default_value,
char *special, int special_value,
int min, int max,
int *var,
void (*handler)(const char *p, const char *s, int value, int min, int max),
void (*set_default)(int value),
option_class class,
char *help_string,
char *special_help_string);
/* string option */
void string_option(char *c, char *s, char *default_value,
char **var,
void (*handler)(const char *p, const char *s, char *value),
void (*set_default)(char *value),
option_class class,
char *help_string);
/* flag option for setting string */
void flag_string_option(char *c, char *s1, char *s2, boolean default_value,
char *true_value, char *false_value,
char **var,
void (*handler)(const char *p, const char *s, boolean value, char *true_value, char *false_value),
void (*set_default)(boolean value, char *string),
option_class class,
char *set_help_string,
char *not_set_help_string);
|