Command-Line Interface (CLI) Option Processing

Command-Line Interface (CLI) Option Processing. More...

Classes
struct	jas_opt_t
	Command line option type. More...

Macros
#define	JAS_GETOPT_EOF   (-1)
#define	JAS_GETOPT_ERR   '?'
#define	JAS_OPT_HASARG   0x01 /* option has argument */

Functions
JAS_EXPORT int	jas_getopt (int argc, char **argv, const jas_opt_t *opts)
	Get the next option. More...

Variables
JAS_EXPORT int	jas_optind
	The current option index. More...
const JAS_EXPORT char *	jas_optarg
	The current option argument. More...
JAS_EXPORT int	jas_opterr
	The debug level. More...

Detailed Description

Command-Line Interface (CLI) Option Processing.

General information can be found here.

Macro Definition Documentation

JAS_GETOPT_EOF

#define JAS_GETOPT_EOF   (-1)

Last CLI option.

JAS_GETOPT_ERR

#define JAS_GETOPT_ERR   '?'

Error while processing CLI options.

JAS_OPT_HASARG

#define JAS_OPT_HASARG   0x01 /* option has argument */

Option has argument.

Function Documentation

jas_getopt()

JAS_EXPORT int jas_getopt	(	int	argc,
		char **	argv,
		const jas_opt_t *	opts
	)

Get the next option.

Gets the next CLI option.

Warning

This function is not thread safe, due to its use of jas_optind, jas_optarg, and jas_opterr.

Variable Documentation

jas_optarg

const JAS_EXPORT char* jas_optarg

The current option argument.

jas_opterr

JAS_EXPORT int jas_opterr

The debug level.

jas_optind

JAS_EXPORT int jas_optind

The current option index.