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leptjson.h
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leptjson.h
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#ifndef LEPTJSON_H__
#define LEPTJSON_H__
#include <stdio.h>
typedef enum {
LEPT_NULL,
LEPT_FALSE,
LEPT_TRUE,
LEPT_NUMBER,
LEPT_STRING,
LEPT_ARRAY,
LEPT_OBJECT
} lept_type;
typedef struct lept_value lept_value; // forward declaration
typedef struct lept_member lept_member; // forward declaration
struct lept_value {
union {
struct {lept_member* m; size_t size; } o; /* object */
struct { lept_value* e; size_t size; } a; /* array */
struct { char* s; size_t len; } s; /* string */
double n; /* number */
} u;
lept_type type;
};
struct lept_member {
char* k;
size_t klen;
lept_value v;
};
enum {
LEPT_PARSE_OK = 0,
LEPT_PARSE_EXPECT_VALUE,
LEPT_PARSE_INVALID_VALUE,
LEPT_PARSE_ROOT_NOT_SINGULAR,
LEPT_PARSE_NUMBER_TOO_BIG,
LEPT_PARSE_MISS_QUOTATION_MARK,
LEPT_PARSE_INVALID_STRING_ESCAPE,
LEPT_PARSE_INVALID_STRING_CHAR,
LEPT_PARSE_INVALID_UNICODE_HEX,
LEPT_PARSE_INVALID_UNICODE_SURROGATE,
LEPT_PARSE_MISS_COMMA_OR_SQUARE_BRACKET,
LEPT_PARSE_MISS_KEY,
LEPT_PARSE_MISS_COLON,
LEPT_PARSE_MISS_COMMA_OR_CURLY_BRACKET
};
#define lept_init(v) do {(v)->type = LEPT_NULL; } while (0)
/**
*
* lept_value v;
* const char json[] = ...;
* int ret = lept_parse(&v, json);
*/
int lept_parse(lept_value* v, const char* json);
void lept_free(lept_value* v);
lept_type lept_get_type(const lept_value* v);
#define lept_set_null(v) lept_free(v)
int lept_get_boolean(const lept_value* v);
void lept_set_boolean(lept_value* v, int b);
double lept_get_number(const lept_value* v);
void lept_set_number(lept_value* v, double n);
const char* lept_get_string(const lept_value* v);
size_t lept_get_string_length(const lept_value* v);
void lept_set_string(lept_value* v, const char* s, size_t len);
size_t lept_get_array_size(const lept_value* v);
lept_value* lept_get_array_element(const lept_value* v, size_t index);
size_t lept_get_object_size(const lept_value* v);
const char* lept_get_object_key(const lept_value* v, size_t index);
size_t lept_get_object_key_length(const lept_value* v, size_t index);
lept_value* lept_get_object_value(const lept_value* v, size_t index);
void lept_set_string(lept_value* v, const char* s, size_t len);
char* lept_stringify(const lept_value* v, size_t* length);
#endif /* LEPTJSON_H__ */