JSON parser.
Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
Enumerations | |
enum | json_cmd { JSON_CMD_NONE = 0, JSON_CMD_ENTER_OBJECT, JSON_CMD_EXIT_OBJECT, JSON_CMD_ENTER_ARRAY, JSON_CMD_EXIT_ARRAY } |
Functions | |
static void | _json_parse (char *data, char *ptr, enum json_cmd cmd, struct json_obj *out) |
static char * | _json_read_token (char *buffer, uint32_t buffer_size, char *dest, uint32_t dest_size, enum json_cmd *cmd) |
is pair of name : value. More... | |
int | json_create (struct json_obj *obj, const char *data, int data_len) |
Create the JSON data from the string buffer. More... | |
int | json_find (struct json_obj *obj, const char *name, struct json_obj *out) |
Find data from the JSON object. More... | |
int | json_get_child (struct json_obj *obj, int index, struct json_obj *out) |
Get child data in the JSON object. More... | |
int | json_get_child_count (struct json_obj *obj) |
Get child count in the JSON object. More... | |
enum json_cmd |
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static |
References json_obj::b, json_obj::d, json_obj::i, JSON_CMD_ENTER_ARRAY, JSON_CMD_ENTER_OBJECT, JSON_MAX_NAME_SIZE, JSON_MAX_TOKEN_SIZE, JSON_TYPE_ARRAY, JSON_TYPE_BOOLEAN, JSON_TYPE_INTEGER, JSON_TYPE_NULL, JSON_TYPE_OBJECT, JSON_TYPE_REAL, JSON_TYPE_STRING, json_obj::name, json_obj::o, json_obj::s, json_obj::type, and json_obj::value.
Referenced by json_find(), and json_get_child().
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static |
is pair of name : value.
buffer | : [in] Read out line |
dest | : [out] destination buffer |
cmd | : [out] 0 : none 1: enter object 2: exit object 3: enter array 4: exit array |
References JSON_CMD_ENTER_ARRAY, JSON_CMD_ENTER_OBJECT, JSON_CMD_EXIT_ARRAY, JSON_CMD_EXIT_OBJECT, JSON_CMD_NONE, and NULL.
Referenced by json_find(), json_get_child(), and json_get_child_count().
int json_create | ( | struct json_obj * | obj, |
const char * | data, | ||
int | data_len | ||
) |
Create the JSON data from the string buffer.
[out] | obj | Pointer of JSON token which will be stored json informations. |
[in] | data | JSON data represented as a string. |
[in] | data_len | JSON data length. |
References json_obj::end_ptr, JSON_TYPE_OBJECT, json_obj::name, NULL, json_obj::o, json_obj::type, and json_obj::value.
Referenced by http_client_callback().
Find data from the JSON object.
The input should be an object or array. This function supported colon separated search.
If JSON data is as follows {"obj1":{"data1":"value1","data2":"value2","obj2":{"data3":"value3"}}} You can be found value of data3 using the following name variable. "obj1:obj2:data3"
[in] | obj | Pointer of the parent JSON data. |
[in] | name | The name of the item you are looking for. |
[in] | out | Pointer of JSON token which will be stored child JSON informations. |
References _json_parse(), _json_read_token(), json_obj::end_ptr, JSON_CMD_ENTER_ARRAY, JSON_CMD_ENTER_OBJECT, JSON_CMD_EXIT_ARRAY, JSON_CMD_EXIT_OBJECT, JSON_CMD_NONE, JSON_MAX_TOKEN_SIZE, JSON_TYPE_ARRAY, JSON_TYPE_OBJECT, json_obj::name, NULL, json_obj::o, json_obj::type, and json_obj::value.
Referenced by http_client_callback().
Get child data in the JSON object.
The input should be an object or array.
[in] | obj | Pointer of the parent JSON data. |
[in] | index | Index which is located in the parent object. |
[in] | out | Pointer of JSON token which will be stored child JSON informations. |
References _json_parse(), _json_read_token(), json_obj::end_ptr, JSON_CMD_ENTER_ARRAY, JSON_CMD_ENTER_OBJECT, JSON_CMD_EXIT_ARRAY, JSON_CMD_EXIT_OBJECT, JSON_CMD_NONE, JSON_MAX_TOKEN_SIZE, JSON_TYPE_ARRAY, JSON_TYPE_OBJECT, NULL, json_obj::o, json_obj::type, and json_obj::value.
int json_get_child_count | ( | struct json_obj * | obj | ) |
Get child count in the JSON object.
The input should be an object or array.
[in] | obj | Pointer of the parent JSON data. |
References _json_read_token(), json_obj::end_ptr, JSON_CMD_ENTER_ARRAY, JSON_CMD_ENTER_OBJECT, JSON_CMD_EXIT_ARRAY, JSON_CMD_EXIT_OBJECT, JSON_CMD_NONE, JSON_TYPE_ARRAY, JSON_TYPE_OBJECT, NULL, json_obj::o, json_obj::type, and json_obj::value.