#define SCHEME_MAX   		32
#define AUTHORITY_MAX USERINFO_MAX + 1 + AUTHORITY_HOST_MAX + 1 + \
		 	AUTHORITY_PORT_MAX
#define AUTHORITY_HOST_MAX	HOST_NAME_MAX
#define AUTHORITY_PORT_MAX     	5
#define USERINFO_MAX USERINFO_USERNAME_MAX + 1 + USERINFO_PASSWORD_MAX
#define USERINFO_USERNAME_MAX 	255
#define USERINFO_PASSWORD_MAX 	255
#define QUERY_MAX		1024
#define FRAGMENT_MAX		1024

typedef struct Uri Uri;
typedef struct Authority Authority;
typedef struct Userinfo Userinfo;

struct Uri {
	char scheme[SCHEME_MAX];
	char username[USERINFO_USERNAME_MAX];
	char password[USERINFO_PASSWORD_MAX];
	char host[AUTHORITY_HOST_MAX];
	char port[AUTHORITY_PORT_MAX];
	char path[PATH_MAX];
	char query[QUERY_MAX];
	char fragment[FRAGMENT_MAX];
};

struct Authority {
	char username[USERINFO_USERNAME_MAX];
	char password[USERINFO_PASSWORD_MAX];
	char host[AUTHORITY_HOST_MAX];
	char port[AUTHORITY_PORT_MAX];
};

struct Userinfo {
	char username[USERINFO_USERNAME_MAX];
	char password[USERINFO_PASSWORD_MAX];
};

Uri *parseuri(const char *uri);
char *parsescheme(const char *scheme);
Authority *parseauthority(const char *authority);
Userinfo *parseuserinfo(const char *userinfo);
char *parsequery(const char *query);