CToolBox/include/toolbox/args.h

#ifndef TOOLBOX_ARGS_H
#define TOOLBOX_ARGS_H

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#ifdef TOOLBOX_TYPEDEF
typedef struct args args_st;
#endif

#define MAX_NUM_OF_OPTIONS 1024

struct args_op {
	bool mand;
	enum {
		TOGGLE,
		STRING,
		INT8, INT16, INT32, INT64,
		FLOAT, DOUBLE
	} type;
	char abv;
	const void *ret;
	struct {
		const char *cstr;
		size_t size;
	} verb;
	const char *desc;
};

struct args {
	const int argc;
	char **argv;
	size_t mand_num;
	char prepender;
	struct {
		size_t size;
		struct args_op data[MAX_NUM_OF_OPTIONS];
	} ops;
};

__attribute__((__pure__))
struct args
args_create(int argc, char **argv);

void
args_set_toggle(struct args *self
				, const char abreviation, const char *restrict verbose
				, const char *restrict description, bool mandatory
				, bool *ret);

void
args_set_op_str(struct args *self
				, const char abreviation, const char *restrict verbose
				, const char *restrict description
				, bool mandatory, void *ret);

void
args_set_op_float(struct args *self
				  , const char abreviation, const char *restrict verbose
				  , const char *restrict description, bool mandatory
				  , bool is_double, void *ret);

void
args_set_op_int(struct args *self
				, const char abreviation, const char *restrict verbose
				, const char *restrict description, bool mandatory
				, size_t size_in_byte, void *ret);

void
args_check(struct args *self);

#endif