Option Struct Reference

Structure that stores option information. More...

#include <gis.h>

Collaboration diagram for Option:

Data Fields
const char *	key
int	type
int	required
int	multiple
const char *	options
const char **	opts
const char *	key_desc
const char *	label
const char *	description
const char *	descriptions
const char **	descs
char *	answer
const char *	def
char **	answers
struct Option *	next_opt
const char *	gisprompt
const char *	guisection
const char *	guidependency
int(*	checker )(const char *)
int	count

Detailed Description

Structure that stores option information.

The descriptions member contains pairs of option and option descriptions separated by semicolon ';'. For example, when options member is set using:

opt->options = "break,rmdupl"

the descriptions member should be set to:

"break;break lines on intersections;"
"rmdupl;remove duplicates"

Parsed descriptions are stored in the same order as options.

GUI dependency is a list of options (separated by commas) to be updated if the value is changed.

Used by the G_parser() system.

Definition at line 554 of file gis.h.

Field Documentation

answer

char* Option::answer

Option answer

Definition at line 568 of file gis.h.

Referenced by AS_option_to_algorithm(), check_create_export_opts(), check_create_import_opts(), G_define_standard_option(), G_open_option_file(), G_option_to_separator(), N_define_standard_option(), and Rast_option_to_interp_type().

answers

char** Option::answers

Option answers (for multiple=YES)

Definition at line 570 of file gis.h.

checker

int(* Option::checker) (const char *)

Routine to check answer or NULL

Definition at line 576 of file gis.h.

count

int Option::count

Definition at line 577 of file gis.h.

def

const char* Option::def

Where original answer gets saved

Definition at line 569 of file gis.h.

description

const char* Option::description

String describing option

Definition at line 563 of file gis.h.

Referenced by G_define_standard_option(), M_define_option(), and N_define_standard_option().

descriptions

const char* Option::descriptions

';' separated pairs of option and option descriptions

Definition at line 564 of file gis.h.

Referenced by G_define_standard_option().

descs

const char** Option::descs

parsed descriptions, array of either NULL or string

Definition at line 566 of file gis.h.

gisprompt

const char* Option::gisprompt

Interactive prompt guidance

Definition at line 572 of file gis.h.

Referenced by G__split_gisprompt(), G__uses_new_gisprompt(), G_define_standard_option(), G_open_option_file(), G_option_to_separator(), and M_define_option().

guidependency

const char* Option::guidependency

GUI dependency

Definition at line 575 of file gis.h.

guisection

const char* Option::guisection

GUI Layout guidance: ';' delimited hierarchical tree position

Definition at line 573 of file gis.h.

Referenced by M_define_option(), and N_define_standard_option().

key

const char* Option::key

Key word used on command line

Definition at line 555 of file gis.h.

Referenced by check_create_export_opts(), check_create_import_opts(), G_define_standard_option(), G_open_option_file(), G_option_to_separator(), G_parser(), M_define_option(), and N_define_standard_option().

key_desc

const char* Option::key_desc

one word describing the key

Definition at line 561 of file gis.h.

Referenced by G_define_standard_option(), M_define_option(), and N_define_standard_option().

label

const char* Option::label

Optional short label, used in GUI as item label

Definition at line 562 of file gis.h.

Referenced by G_define_standard_option().

multiple

int Option::multiple

Multiple entries OK

Definition at line 558 of file gis.h.

Referenced by G_define_option(), G_define_standard_option(), G_open_option_file(), and M_define_option().

next_opt

struct Option* Option::next_opt

Pointer to next option struct

Definition at line 571 of file gis.h.

Referenced by G__uses_new_gisprompt().

options

const char* Option::options

Approved values or range or NULL

Definition at line 559 of file gis.h.

Referenced by G_define_standard_option(), and N_define_standard_option().

opts

const char** Option::opts

NULL or NULL terminated array of parsed options

Definition at line 560 of file gis.h.

required

int Option::required

REQUIRED or OPTIONAL

Definition at line 557 of file gis.h.

Referenced by G_define_option(), G_define_standard_option(), G_parser(), M_define_option(), and N_define_standard_option().

type

int Option::type

Option type

Definition at line 556 of file gis.h.

Referenced by G_define_standard_option(), M_define_option(), and N_define_standard_option().

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The documentation for this struct was generated from the following file:

• gis.h