Very low footprint JSON parser written in portable ANSI C.

• BSD licensed with no dependencies (i.e. just drop the C file into your project)
• Never recurses or allocates more memory than it needs
• Very simple API with operator sugar for C++

API

json_value * json_parse
    (const json_char * json);

json_value * json_parse_ex
    (json_settings * settings, const json_char * json, char * error);

void json_value_free
    (json_value *);

json_value * json_value_dup
    (json_value const *);

void json_value_dump
	(FILE * fp, json_value const * v);

bool json_value_equal
	(json_value const * lhs, json_value const * rhs);

bool json_type_equal
	(json_value const * lhs, json_value const * rhs);

json_value const * find_json_object
	(json_value const * v, char const * field);

Reader

Read a C typed value from json_value .

bool json_value_read_if_<type>
    (<type> * x, json_value const * v);

Supported types are below:

int, uint
uint8_t, uint16_t, uint32_t, uint64_t
int8_t, int16_t, int32_t, int64_t
float, double
string, bool

The type field of json_value is one of:

• json_object (see u.object.length, u.object.values[x].name, u.object.values[x].value)
• json_array (see u.array.length, u.array.values)
• json_integer (see u.integer)
• json_double (see u.dbl)
• json_string (see u.string.ptr, u.string.length)
• json_boolean (see u.boolean)
• json_null