NAME
parseopt.h - parse command-line options
SYNOPSIS
#include <limb/parseopt.h>
DESCRIPTION
This header defines functions to parse command-line options.
Constants
The following constants are defined :
ARG_NONE, ARG_REQ, ARG_OPT
To define if an options has no argument, requires one, or may have one.
OPTION_ARG_NONE, OPTION_ARG_OPT, OPTION_ARG_REQ
To define an option taking no argument, an optional argument, or a required argument respectively.
OPTION_DONE
To be used as last element in the array of struct option, indicating the end of said array.
OPTID_FIRST
First ID to be used for options.
OPTID_SHORTOPT
Special ID for an option, meaning to return its shortopt instead.
PARSEOPT_STRICT, PARSEOPT_SILENT
Flags that can be passed to parseopt(3).
Structures
The following structure are defined :
struct option
To define an option when calling parseopt(3).
struct parseopt
An opaque structure to be passed to parseopt(3)
Macros
The following macros are defined :
PARSEOPT_ZERO
Value to initialize a struct parseopt.
PO_ARG(ctx)
To get a pointer to the current option's argument.
PO_CUR(ctx)
To get the index of the first argument in argv.
PO_IDX(ctx)
To get the index of the current option.
Functions
The following functions are defined :
To parse command-line options