2a038d1bc0
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5267 42af7a65-404d-4744-a932-0658087f49c3
207 lines
6.7 KiB
C
207 lines
6.7 KiB
C
/****************************************************************************
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* apps/netutils/json/cJSON.c
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*
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* This file is a part of NuttX:
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Ported by: Darcy Gong
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*
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* And derives from the cJSON Project which has an MIT license:
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*
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* Copyright (c) 2009 Dave Gamble
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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****************************************************************************/
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#ifndef __APPS_INCLUDE_NETUTILS_JSON_H
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#define __APPS_INCLUDE_NETUTILS_JSON_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define cJSON_False 0
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#define cJSON_True 1
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#define cJSON_NULL 2
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#define cJSON_Number 3
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#define cJSON_String 4
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#define cJSON_Array 5
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#define cJSON_Object 6
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#define cJSON_IsReference 256
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#define cJSON_AddNullToObject(object,name) \
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cJSON_AddItemToObject(object, name, cJSON_CreateNull())
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#define cJSON_AddTrueToObject(object,name) \
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cJSON_AddItemToObject(object, name, cJSON_CreateTrue())cd
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#define cJSON_AddFalseToObject(object,name) \
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cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
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#define cJSON_AddNumberToObject(object,name,n) \
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cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
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#define cJSON_AddStringToObject(object,name,s) \
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cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* The cJSON structure: */
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typedef struct cJSON
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{
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/* next/prev allow you to walk array/object chains. Alternatively, use
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* GetArraySize/GetArrayItem/GetObjectItem
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*/
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struct cJSON *next,*prev;
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/* An array or object item will have a child pointer pointing to a chain
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* of the items in the array/object.
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*/
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struct cJSON *child;
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int type; /* The type of the item, as above. */
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char *valuestring; /* The item's string, if type==cJSON_String */
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int valueint; /* The item's number, if type==cJSON_Number */
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double valuedouble; /* The item's number, if type==cJSON_Number */
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/* The item's name string, if this item is the child of, or is in the list
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* of subitems of an object.
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*/
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char *string;
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} cJSON;
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typedef struct cJSON_Hooks
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{
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void *(*malloc_fn)(size_t sz);
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void (*free_fn)(void *ptr);
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} cJSON_Hooks;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/* Supply malloc, realloc and free functions to cJSON */
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void cJSON_InitHooks(cJSON_Hooks* hooks);
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/* Supply a block of JSON, and this returns a cJSON object you can
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* interrogate. Call cJSON_Delete when finished.
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*/
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cJSON *cJSON_Parse(const char *value);
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/* Render a cJSON entity to text for transfer/storage. Free the char* when
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* finished.
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*/
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char *cJSON_Print(cJSON *item);
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/* Render a cJSON entity to text for transfer/storage without any
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* formatting. Free the char* when finished.
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*/
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char *cJSON_PrintUnformatted(cJSON *item);
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/* Delete a cJSON entity and all subentities. */
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void cJSON_Delete(cJSON *c);
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/* Returns the number of items in an array (or object). */
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int cJSON_GetArraySize(cJSON *array);
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/* Retrieve item number "item" from array "array". Returns NULL if
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* unsuccessful.
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*/
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cJSON *cJSON_GetArrayItem(cJSON *array, int item);
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/* Get item "string" from object. Case insensitive. */
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cJSON *cJSON_GetObjectItem(cJSON *object, const char *string);
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/* For analysing failed parses. This returns a pointer to the parse error.
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* You'll probably need to look a few chars back to make sense of it.
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* Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds.
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*/
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const char *cJSON_GetErrorPtr();
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/* These calls create a cJSON item of the appropriate type. */
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cJSON *cJSON_CreateNull();
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cJSON *cJSON_CreateTrue();
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cJSON *cJSON_CreateFalse();
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cJSON *cJSON_CreateBool(int b);
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cJSON *cJSON_CreateNumber(double num);
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cJSON *cJSON_CreateString(const char *string);
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cJSON *cJSON_CreateArray();
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cJSON *cJSON_CreateObject();
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/* These utilities create an Array of count items. */
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cJSON *cJSON_CreateIntArray(const int *numbers, int count);
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cJSON *cJSON_CreateFloatArray(const float *numbers, int count);
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cJSON *cJSON_CreateDoubleArray(const double *numbers, int count);
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cJSON *cJSON_CreateStringArray(const char **strings, int count);
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/* Append item to the specified array/object. */
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void cJSON_AddItemToArray(cJSON *array, cJSON *item);
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void cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
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/* Append reference to item to the specified array/object. Use this when you
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* want to add an existing cJSON to a new cJSON, but don't want to corrupt
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* your existing cJSON.
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*/
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void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
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void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
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/* Remove/Detatch items from Arrays/Objects. */
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cJSON *cJSON_DetachItemFromArray(cJSON *array, int which);
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void cJSON_DeleteItemFromArray(cJSON *array, int which);
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cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string);
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void cJSON_DeleteItemFromObject(cJSON *object, const char *string);
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/* Update array items. */
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void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
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void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_INCLUDE_NETUTILS_JSON_H */
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