/* SPDX-License-Identifier: MIT */
#ifndef __JSMN_H_
#define __JSMN_H_
/*
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_PRIMITIVE = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3
} jsmntype_t;
typedef enum {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3,
/* Everything was fine */
JSMN_SUCCESS = 0
} jsmnerr_t;
/*
* JSON token description.
* @param type type (object, array, string etc.)
* @param start start position in JSON data string
* @param end end position in JSON data string
*/
typedef struct {
jsmntype_t type;
int start;
int end;
int size;
} jsmntok_t;
/*
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string
*/
typedef struct {
unsigned int pos; /* offset in the JSON string */
int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;
/*
* Create JSON parser over an array of tokens
*/
void jsmn_init(jsmn_parser *parser);
/*
* Run JSON parser. It parses a JSON data string into and array of tokens,
* each describing a single JSON object.
*/
jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js,
size_t len,
jsmntok_t *tokens, unsigned int num_tokens);
const char *jsmn_strerror(jsmnerr_t err);
#endif /* __JSMN_H_ */
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