136 lines
4.6 KiB
C
136 lines
4.6 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.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* JSON output generation
|
|
* \author
|
|
* Niclas Finne <nfi@sics.se>
|
|
* Joakim Eriksson <joakime@sics.se>
|
|
*/
|
|
|
|
#ifndef JSONTREE_H_
|
|
#define JSONTREE_H_
|
|
|
|
#include "contiki-conf.h"
|
|
#include "json.h"
|
|
|
|
#ifdef JSONTREE_CONF_MAX_DEPTH
|
|
#define JSONTREE_MAX_DEPTH JSONTREE_CONF_MAX_DEPTH
|
|
#else
|
|
#define JSONTREE_MAX_DEPTH 10
|
|
#endif /* JSONTREE_CONF_MAX_DEPTH */
|
|
|
|
struct jsontree_context {
|
|
struct jsontree_value *values[JSONTREE_MAX_DEPTH];
|
|
uint16_t index[JSONTREE_MAX_DEPTH];
|
|
int (* putchar)(int);
|
|
uint8_t depth;
|
|
uint8_t path;
|
|
int callback_state;
|
|
};
|
|
|
|
struct jsontree_value {
|
|
uint8_t type;
|
|
/* followed by a value */
|
|
};
|
|
|
|
struct jsontree_string {
|
|
uint8_t type;
|
|
const char *value;
|
|
};
|
|
|
|
struct jsontree_int {
|
|
uint8_t type;
|
|
int value;
|
|
};
|
|
|
|
/* NOTE: the jsontree_callback set will receive a jsonparse state */
|
|
struct jsonparse_state;
|
|
struct jsontree_callback {
|
|
uint8_t type;
|
|
int (* output)(struct jsontree_context *js_ctx);
|
|
int (* set)(struct jsontree_context *js_ctx, struct jsonparse_state *parser);
|
|
};
|
|
|
|
struct jsontree_pair {
|
|
const char *name;
|
|
struct jsontree_value *value;
|
|
};
|
|
|
|
struct jsontree_object {
|
|
uint8_t type;
|
|
uint8_t count;
|
|
struct jsontree_pair *pairs;
|
|
};
|
|
|
|
struct jsontree_array {
|
|
uint8_t type;
|
|
uint8_t count;
|
|
struct jsontree_value **values;
|
|
};
|
|
|
|
#define JSONTREE_STRING(text) {JSON_TYPE_STRING, (text)}
|
|
#define JSONTREE_PAIR(name, value) {(name), (struct jsontree_value *)(value)}
|
|
#define JSONTREE_CALLBACK(output, set) {JSON_TYPE_CALLBACK, (output), (set)}
|
|
|
|
#define JSONTREE_OBJECT(name, ...) \
|
|
static struct jsontree_pair jsontree_pair_##name[] = {__VA_ARGS__}; \
|
|
static struct jsontree_object name = { \
|
|
JSON_TYPE_OBJECT, \
|
|
sizeof(jsontree_pair_##name)/sizeof(struct jsontree_pair), \
|
|
jsontree_pair_##name }
|
|
|
|
#define JSONTREE_OBJECT_EXT(name, ...) \
|
|
static struct jsontree_pair jsontree_pair_##name[] = {__VA_ARGS__}; \
|
|
struct jsontree_object name = { \
|
|
JSON_TYPE_OBJECT, \
|
|
sizeof(jsontree_pair_##name)/sizeof(struct jsontree_pair), \
|
|
jsontree_pair_##name }
|
|
|
|
void jsontree_setup(struct jsontree_context *js_ctx,
|
|
struct jsontree_value *root, int (* putchar)(int));
|
|
void jsontree_reset(struct jsontree_context *js_ctx);
|
|
|
|
const char *jsontree_path_name(const struct jsontree_context *js_ctx,
|
|
int depth);
|
|
|
|
void jsontree_write_int(const struct jsontree_context *js_ctx, int value);
|
|
void jsontree_write_atom(const struct jsontree_context *js_ctx,
|
|
const char *text);
|
|
void jsontree_write_string(const struct jsontree_context *js_ctx,
|
|
const char *text);
|
|
int jsontree_print_next(struct jsontree_context *js_ctx);
|
|
struct jsontree_value *jsontree_find_next(struct jsontree_context *js_ctx,
|
|
int type);
|
|
|
|
#endif /* JSONTREE_H_ */
|