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* Simple JSON parser and generator.

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* Simple HTTP webservice with support for both receiving and sending HTTP requests.
* json-ws example that optionally push sensor data to COSM over IPv6.
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Joakim Eriksson 2012-06-02 18:24:29 +02:00 • committed by Niclas Finne
parent f177284a73
commit 51b73127e9
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/*
* 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 "contiki-conf.h"
#include "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 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__ */