107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2010 Serge A. Zaitsev
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
/**
|
|
* @file jsmn.h
|
|
* @brief Definition of the JSMN (Jasmine) JSON parser.
|
|
*
|
|
* For more information on JSMN:
|
|
* @see http://zserge.com/jsmn.html
|
|
*/
|
|
|
|
#ifndef __JSMN_H_
|
|
#define __JSMN_H_
|
|
|
|
#include <stddef.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* JSON type identifier. Basic types are:
|
|
* o Object
|
|
* o Array
|
|
* o String
|
|
* o Other primitive: number, boolean (true/false) or null
|
|
*/
|
|
typedef enum {
|
|
JSMN_UNDEFINED = 0,
|
|
JSMN_OBJECT = 1,
|
|
JSMN_ARRAY = 2,
|
|
JSMN_STRING = 3,
|
|
JSMN_PRIMITIVE = 4
|
|
} jsmntype_t;
|
|
|
|
enum jsmnerr {
|
|
/* 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
|
|
};
|
|
|
|
/**
|
|
* 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;
|
|
#ifdef JSMN_PARENT_LINKS
|
|
int parent;
|
|
#endif
|
|
} 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 */
|
|
unsigned 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.
|
|
*/
|
|
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
|
|
jsmntok_t *tokens, unsigned int num_tokens);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __JSMN_H_ */
|