/****************************************************************************
* apps/netutils/json/cJSON.c
*
* This file is a part of NuttX:
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Ported by: Darcy Gong
*
* And derives from the cJSON Project which has an MIT license:
*
* Copyright (c) 2009 Dave Gamble
*
* 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.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_NETUTILS_JSON_H
#define __APPS_INCLUDE_NETUTILS_JSON_H
#ifdef __cplusplus
extern "C"
{
#endif
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define cJSON_False 0
#define cJSON_True 1
#define cJSON_NULL 2
#define cJSON_Number 3
#define cJSON_String 4
#define cJSON_Array 5
#define cJSON_Object 6
#define cJSON_IsReference 256
#define cJSON_AddNullToObject(object,name) \
cJSON_AddItemToObject(object, name, cJSON_CreateNull())
#define cJSON_AddTrueToObject(object,name) \
cJSON_AddItemToObject(object, name, cJSON_CreateTrue())cd
#define cJSON_AddFalseToObject(object,name) \
cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
#define cJSON_AddNumberToObject(object,name,n) \
cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
#define cJSON_AddStringToObject(object,name,s) \
cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
/****************************************************************************
* Public Types
****************************************************************************/
/* The cJSON structure: */
typedef struct cJSON
{
/* next/prev allow you to walk array/object chains. Alternatively, use
* GetArraySize/GetArrayItem/GetObjectItem
*/
struct cJSON *next,*prev;
/* An array or object item will have a child pointer pointing to a chain
* of the items in the array/object.
*/
struct cJSON *child;
int type; /* The type of the item, as above. */
char *valuestring; /* The item's string, if type==cJSON_String */
int valueint; /* The item's number, if type==cJSON_Number */
double valuedouble; /* The item's number, if type==cJSON_Number */
/* The item's name string, if this item is the child of, or is in the list
* of subitems of an object.
*/
char *string;
} cJSON;
typedef struct cJSON_Hooks
{
void *(*malloc_fn)(size_t sz);
void (*free_fn)(void *ptr);
} cJSON_Hooks;
/****************************************************************************
* Public Functions
****************************************************************************/
/* Supply malloc, realloc and free functions to cJSON */
void cJSON_InitHooks(cJSON_Hooks* hooks);
/* Supply a block of JSON, and this returns a cJSON object you can
* interrogate. Call cJSON_Delete when finished.
*/
cJSON *cJSON_Parse(const char *value);
/* Render a cJSON entity to text for transfer/storage. Free the char* when
* finished.
*/
char *cJSON_Print(cJSON *item);
/* Render a cJSON entity to text for transfer/storage without any
* formatting. Free the char* when finished.
*/
char *cJSON_PrintUnformatted(cJSON *item);
/* Delete a cJSON entity and all subentities. */
void cJSON_Delete(cJSON *c);
/* Returns the number of items in an array (or object). */
int cJSON_GetArraySize(cJSON *array);
/* Retrieve item number "item" from array "array". Returns NULL if
* unsuccessful.
*/
cJSON *cJSON_GetArrayItem(cJSON *array, int item);
/* Get item "string" from object. Case insensitive. */
cJSON *cJSON_GetObjectItem(cJSON *object, const char *string);
/* For analysing failed parses. This returns a pointer to the parse error.
* You'll probably need to look a few chars back to make sense of it.
* Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds.
*/
const char *cJSON_GetErrorPtr();
/* These calls create a cJSON item of the appropriate type. */
cJSON *cJSON_CreateNull();
cJSON *cJSON_CreateTrue();
cJSON *cJSON_CreateFalse();
cJSON *cJSON_CreateBool(int b);
cJSON *cJSON_CreateNumber(double num);
cJSON *cJSON_CreateString(const char *string);
cJSON *cJSON_CreateArray();
cJSON *cJSON_CreateObject();
/* These utilities create an Array of count items. */
cJSON *cJSON_CreateIntArray(const int *numbers, int count);
cJSON *cJSON_CreateFloatArray(const float *numbers, int count);
cJSON *cJSON_CreateDoubleArray(const double *numbers, int count);
cJSON *cJSON_CreateStringArray(const char **strings, int count);
/* Append item to the specified array/object. */
void cJSON_AddItemToArray(cJSON *array, cJSON *item);
void cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
/* Append reference to item to the specified array/object. Use this when you
* want to add an existing cJSON to a new cJSON, but don't want to corrupt
* your existing cJSON.
*/
void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
/* Remove/Detatch items from Arrays/Objects. */
cJSON *cJSON_DetachItemFromArray(cJSON *array, int which);
void cJSON_DeleteItemFromArray(cJSON *array, int which);
cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string);
void cJSON_DeleteItemFromObject(cJSON *object, const char *string);
/* Update array items. */
void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem);
#ifdef __cplusplus
}
#endif
#endif /* __APPS_INCLUDE_NETUTILS_JSON_H */
