95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2011-2012, Swedish Institute of Computer Science.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* This file is part of the Contiki operating system.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __JSONPARSE_H__
|
||
|
|
#define __JSONPARSE_H__
|
||
|
|
|
||
|
|
#include "c_types.h"
|
||
|
|
#include "json/json.h"
|
||
|
|
|
||
|
|
#ifdef JSONPARSE_CONF_MAX_DEPTH
|
||
|
|
#define JSONPARSE_MAX_DEPTH JSONPARSE_CONF_MAX_DEPTH
|
||
|
|
#else
|
||
|
|
#define JSONPARSE_MAX_DEPTH 10
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct jsonparse_state {
|
||
|
|
const char *json;
|
||
|
|
int pos;
|
||
|
|
int len;
|
||
|
|
int depth;
|
||
|
|
/* for handling atomic values */
|
||
|
|
int vstart;
|
||
|
|
int vlen;
|
||
|
|
char vtype;
|
||
|
|
char error;
|
||
|
|
char stack[JSONPARSE_MAX_DEPTH];
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Initialize a JSON parser state.
|
||
|
|
* \param state A pointer to a JSON parser state
|
||
|
|
* \param json The string to parse as JSON
|
||
|
|
* \param len The length of the string to parse
|
||
|
|
*
|
||
|
|
* This function initializes a JSON parser state for
|
||
|
|
* parsing a string as JSON.
|
||
|
|
*/
|
||
|
|
void jsonparse_setup(struct jsonparse_state *state, const char *json,
|
||
|
|
int len);
|
||
|
|
|
||
|
|
/* move to next JSON element */
|
||
|
|
int jsonparse_next(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* copy the current JSON value into the specified buffer */
|
||
|
|
int jsonparse_copy_value(struct jsonparse_state *state, char *buf,
|
||
|
|
int buf_size);
|
||
|
|
|
||
|
|
/* get the current JSON value parsed as an int */
|
||
|
|
int jsonparse_get_value_as_int(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* get the current JSON value parsed as a long */
|
||
|
|
long jsonparse_get_value_as_long(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* get the current JSON value parsed as a unsigned long */
|
||
|
|
unsigned long jsonparse_get_value_as_ulong(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* get the length of the current JSON value */
|
||
|
|
int jsonparse_get_len(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* get the type of the current JSON value */
|
||
|
|
int jsonparse_get_type(struct jsonparse_state *state);
|
||
|
|
|
||
|
|
/* compare the JSON value with the specified string */
|
||
|
|
int jsonparse_strcmp_value(struct jsonparse_state *state, const char *str);
|
||
|
|
|
||
|
|
#endif /* __JSONPARSE_H__ */
|