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