#include <ctype.h>
#include <string.h>

#include <stdlib.h>

#include "json.h"

#define PSTRING (-1)
#define PNUMBER (-2)
#define PTRUE (-3)
#define PFALSE (-4)
#define PNULL (-5)

#define NUMERROR 1
#define TOKENERROR 2
struct scanner {
	void *(*allocate)(size_t s);
	void *(*reallocate)(void *p, size_t s);
	void (*free)(void *p);
};

#define NEED_MORE 0

int scanner_init(struct scanner *s);

struct token {
	int len;
	char ch;
	int type;
	int maybe;
	int error;
	int state;
	unsigned int unicode;
	char str[1024];
};

/* returns a pointer to the last unused character */
/* fills in t.
 */
int scan_json_ch(int input, struct token *t);