2 Copyright (c) 2009 Dave Gamble
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"), to deal
6 in the Software without restriction, including without limitation the rights
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the Software is
9 furnished to do so, subject to the following conditions:
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
35 #define cJSON_Number 3
36 #define cJSON_String 4
38 #define cJSON_Object 6
40 #define cJSON_IsReference 256
42 #include <platform_features.h>
44 /* The cJSON structure: */
45 typedef struct cJSON {
46 struct cJSON *next,*prev; /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
47 struct cJSON *child; /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
49 int type; /* The type of the item, as above. */
51 char *valuestring; /* The item's string, if type==cJSON_String */
52 int valueint; /* The item's number, if type==cJSON_Number */
53 double valuedouble; /* The item's number, if type==cJSON_Number */
55 char *string; /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
58 typedef struct cJSON_Hooks {
59 void *(*malloc_fn)(size_t sz);
60 void (*free_fn)(void *ptr);
63 /* Supply malloc, realloc and free functions to cJSON */
64 OC_EXPORT extern void cJSON_InitHooks(cJSON_Hooks* hooks);
67 /* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
68 OC_EXPORT extern cJSON *cJSON_Parse(const char *value);
69 /* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
70 OC_EXPORT extern char *cJSON_Print(cJSON *item);
71 /* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
72 OC_EXPORT extern char *cJSON_PrintUnformatted(cJSON *item);
73 /* Delete a cJSON entity and all subentities. */
74 OC_EXPORT extern void cJSON_Delete(cJSON *c);
76 /* Returns the number of items in an array (or object). */
77 OC_EXPORT extern int cJSON_GetArraySize(cJSON *array);
78 /* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
79 OC_EXPORT extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
80 /* Get item "string" from object. Case insensitive. */
81 OC_EXPORT extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
83 /* 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. */
84 OC_EXPORT extern const char *cJSON_GetErrorPtr(void);
86 /* These calls create a cJSON item of the appropriate type. */
87 OC_EXPORT extern cJSON *cJSON_CreateNull(void);
88 OC_EXPORT extern cJSON *cJSON_CreateTrue(void);
89 OC_EXPORT extern cJSON *cJSON_CreateFalse(void);
90 OC_EXPORT extern cJSON *cJSON_CreateBool(int b);
91 OC_EXPORT extern cJSON *cJSON_CreateNumber(double num);
92 OC_EXPORT extern cJSON *cJSON_CreateString(const char *string);
93 OC_EXPORT extern cJSON *cJSON_CreateArray(void);
94 OC_EXPORT extern cJSON *cJSON_CreateObject(void);
96 /* These utilities create an Array of count items. */
97 OC_EXPORT extern cJSON *cJSON_CreateIntArray(const int *numbers,int count);
98 OC_EXPORT extern cJSON *cJSON_CreateFloatArray(const float *numbers,int count);
99 OC_EXPORT extern cJSON *cJSON_CreateDoubleArray(const double *numbers,int count);
100 OC_EXPORT extern cJSON *cJSON_CreateStringArray(const char **strings,int count);
102 /* Append item to the specified array/object. */
103 OC_EXPORT extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
104 OC_EXPORT extern void cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
105 /* 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. */
106 OC_EXPORT extern void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
107 OC_EXPORT extern void cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item);
109 /* Remove/Detatch items from Arrays/Objects. */
110 OC_EXPORT extern cJSON *cJSON_DetachItemFromArray(cJSON *array,int which);
111 OC_EXPORT extern void cJSON_DeleteItemFromArray(cJSON *array,int which);
112 OC_EXPORT extern cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string);
113 OC_EXPORT extern void cJSON_DeleteItemFromObject(cJSON *object,const char *string);
115 /* Update array items. */
116 OC_EXPORT extern void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem);
117 OC_EXPORT extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
119 /* Duplicate a cJSON item */
120 OC_EXPORT extern cJSON *cJSON_Duplicate(cJSON *item,int recurse);
121 /* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
122 need to be released. With recurse!=0, it will duplicate any children connected to the item.
123 The item->next and ->prev pointers are always zero on return from Duplicate. */
125 /* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
126 OC_EXPORT extern cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated);
128 OC_EXPORT extern void cJSON_Minify(char *json);
130 /* Macros for creating things quickly. */
131 #define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
132 #define cJSON_AddTrueToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
133 #define cJSON_AddFalseToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
134 #define cJSON_AddBoolToObject(object,name,b) cJSON_AddItemToObject(object, name, cJSON_CreateBool(b))
135 #define cJSON_AddNumberToObject(object,name,n) cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
136 #define cJSON_AddStringToObject(object,name,s) cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
138 /* When assigning an integer value, it needs to be propagated to valuedouble too. */
139 #define cJSON_SetIntValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))