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cJSON.h
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1 /*
2  Copyright (c) 2009 Dave Gamble
3 
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:
10 
11  The above copyright notice and this permission notice shall be included in
12  all copies or substantial portions of the Software.
13 
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
20  THE SOFTWARE.
21 */
22 
23 #ifndef cJSON__h
24 #define cJSON__h
25 
26 // taka add
27 #include "stdint.h"
28 
29 #ifdef __cplusplus
30 extern "C"
31 {
32 #endif
33 
34 /* cJSON Types: */
35 #define cJSON_False (1 << 0)
36 #define cJSON_True (1 << 1)
37 #define cJSON_NULL (1 << 2)
38 #define cJSON_Number (1 << 3)
39 #define cJSON_String (1 << 4)
40 #define cJSON_Array (1 << 5)
41 #define cJSON_Object (1 << 6)
42 
43 #define cJSON_IsReference 256
44 #define cJSON_StringIsConst 512
45 
46 /* The cJSON structure: */
47 typedef struct cJSON {
48  struct cJSON *next,*prev; /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
49  struct cJSON *child; /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
50  int type; /* The type of the item, as above. */
51  char *valuestring; /* The item's string, if type==cJSON_String */
52 
53  // taka add begin
54  uint8_t valueuint8; /* The item's number, if type==cJSON_Number */
55  uint16_t valueuint16; /* The item's number, if type==cJSON_Number */
56 
57  int valueint; /* The item's number, if type==cJSON_Number */
58  double valuedouble; /* The item's number, if type==cJSON_Number */
59  char *string; /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
60 } cJSON;
61 
62 typedef struct cJSON_Hooks {
63  void *(*malloc_fn)(size_t sz);
64  void (*free_fn)(void *ptr);
65 } cJSON_Hooks;
66 
67 /* Supply malloc, realloc and free functions to cJSON */
68 extern void cJSON_InitHooks(cJSON_Hooks* hooks);
69 
70 
71 /* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
72 extern cJSON *cJSON_Parse(const char *value);
73 /* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
74 extern char *cJSON_Print(cJSON *item);
75 /* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
76 extern char *cJSON_PrintUnformatted(cJSON *item);
77 /* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
78 extern char *cJSON_PrintBuffered(cJSON *item,int prebuffer,int fmt);
79 /* Delete a cJSON entity and all subentities. */
80 extern void cJSON_Delete(cJSON *c);
81 
82 /* Returns the number of items in an array (or object). */
83 extern int cJSON_GetArraySize(cJSON *array);
84 /* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
85 extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
86 /* Get item "string" from object. Case insensitive. */
87 extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
88 extern int cJSON_HasObjectItem(cJSON *object,const char *string);
89 /* 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. */
90 extern const char *cJSON_GetErrorPtr(void);
91 
92 /* These calls create a cJSON item of the appropriate type. */
93 extern cJSON *cJSON_CreateNull(void);
94 extern cJSON *cJSON_CreateTrue(void);
95 extern cJSON *cJSON_CreateFalse(void);
96 extern cJSON *cJSON_CreateBool(int b);
97 extern cJSON *cJSON_CreateNumber(double num);
98 extern cJSON *cJSON_CreateString(const char *string);
99 extern cJSON *cJSON_CreateArray(void);
100 extern cJSON *cJSON_CreateObject(void);
101 
102 /* These utilities create an Array of count items. */
103  // taka add
104 extern cJSON *cJSON_CreateUInt8Array(const uint8_t *numbers,int count);
105 extern cJSON *cJSON_CreateUInt16Array(const uint16_t *numbers,int count);
106 
107 extern cJSON *cJSON_CreateIntArray(const int *numbers,int count);
108 extern cJSON *cJSON_CreateFloatArray(const float *numbers,int count);
109 extern cJSON *cJSON_CreateDoubleArray(const double *numbers,int count);
110 extern cJSON *cJSON_CreateStringArray(const char **strings,int count);
111 
112 /* Append item to the specified array/object. */
113 extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
114 extern void cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
115 extern void cJSON_AddItemToObjectCS(cJSON *object,const char *string,cJSON *item); /* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object */
116 /* 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. */
117 extern void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
118 extern void cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item);
119 
120 /* Remove/Detatch items from Arrays/Objects. */
121 extern cJSON *cJSON_DetachItemFromArray(cJSON *array,int which);
122 extern void cJSON_DeleteItemFromArray(cJSON *array,int which);
123 extern cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string);
124 extern void cJSON_DeleteItemFromObject(cJSON *object,const char *string);
125 
126 /* Update array items. */
127 extern void cJSON_InsertItemInArray(cJSON *array,int which,cJSON *newitem); /* Shifts pre-existing items to the right. */
128 extern void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem);
129 extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
130 
131 /* Duplicate a cJSON item */
132 extern cJSON *cJSON_Duplicate(cJSON *item,int recurse);
133 /* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
134 need to be released. With recurse!=0, it will duplicate any children connected to the item.
135 The item->next and ->prev pointers are always zero on return from Duplicate. */
136 
137 /* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
138 /* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error. If not, then cJSON_GetErrorPtr() does the job. */
139 extern cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated);
140 
141 extern void cJSON_Minify(char *json);
142 
143 /* Macros for creating things quickly. */
144 #define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
145 #define cJSON_AddTrueToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
146 #define cJSON_AddFalseToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
147 #define cJSON_AddBoolToObject(object,name,b) cJSON_AddItemToObject(object, name, cJSON_CreateBool(b))
148 #define cJSON_AddNumberToObject(object,name,n) cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
149 #define cJSON_AddStringToObject(object,name,s) cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
150 
151 /* When assigning an integer value, it needs to be propagated to valuedouble too. */
152 #define cJSON_SetIntValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))
153 #define cJSON_SetNumberValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))
154 
155 /* Macro for iterating over an array */
156 #define cJSON_ArrayForEach(pos, head) for(pos = (head)->child; pos != NULL; pos = pos->next)
157 
158 #ifdef __cplusplus
159 }
160 #endif
161 
162 #endif
cJSON * cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated)
Definition: cJSON.c:327
char * cJSON_PrintBuffered(cJSON *item, int prebuffer, int fmt)
Definition: cJSON.c:349
struct cJSON * next
Definition: cJSON.h:48
void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
Definition: cJSON.c:690
void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
Definition: cJSON.c:678
char * cJSON_PrintUnformatted(cJSON *item)
Definition: cJSON.c:347
cJSON * cJSON_CreateUInt16Array(const uint16_t *numbers, int count)
Definition: cJSON.c:713
struct cJSON * child
Definition: cJSON.h:49
void cJSON_Delete(cJSON *c)
Definition: cJSON.c:81
cJSON * cJSON_GetObjectItem(cJSON *object, const char *string)
Definition: cJSON.c:666
cJSON * cJSON_Duplicate(cJSON *item, int recurse)
Definition: cJSON.c:721
cJSON * cJSON_CreateDoubleArray(const double *numbers, int count)
Definition: cJSON.c:717
void cJSON_DeleteItemFromArray(cJSON *array, int which)
Definition: cJSON.c:683
int valueint
Definition: cJSON.h:57
cJSON * cJSON_CreateString(const char *string)
Definition: cJSON.c:706
uint8_t valueuint8
Definition: cJSON.h:54
cJSON * cJSON_CreateTrue(void)
Definition: cJSON.c:697
cJSON * cJSON_CreateNumber(double num)
Definition: cJSON.c:705
struct cJSON * prev
Definition: cJSON.h:48
cJSON * cJSON_CreateStringArray(const char **strings, int count)
Definition: cJSON.c:718
void cJSON_Minify(char *json)
Definition: cJSON.c:748
cJSON * cJSON_CreateUInt8Array(const uint8_t *numbers, int count)
Definition: cJSON.c:712
void cJSON_InitHooks(cJSON_Hooks *hooks)
Definition: cJSON.c:60
Definition: cJSON.h:62
struct cJSON_Hooks cJSON_Hooks
cJSON * cJSON_CreateNull(void)
Definition: cJSON.c:696
void(* free_fn)(void *ptr)
Definition: cJSON.h:64
void cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
Definition: cJSON.c:676
const char * cJSON_GetErrorPtr(void)
Definition: cJSON.c:37
cJSON * cJSON_CreateBool(int b)
Definition: cJSON.c:699
int cJSON_GetArraySize(cJSON *array)
Definition: cJSON.c:664
cJSON * cJSON_DetachItemFromObject(cJSON *object, const char *string)
Definition: cJSON.c:684
cJSON * cJSON_GetArrayItem(cJSON *array, int item)
Definition: cJSON.c:665
cJSON * cJSON_CreateObject(void)
Definition: cJSON.c:708
void cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
Definition: cJSON.c:677
int type
Definition: cJSON.h:50
cJSON * cJSON_CreateFloatArray(const float *numbers, int count)
Definition: cJSON.c:716
cJSON * cJSON_CreateIntArray(const int *numbers, int count)
Definition: cJSON.c:715
char * cJSON_Print(cJSON *item)
Definition: cJSON.c:346
cJSON * cJSON_Parse(const char *value)
Definition: cJSON.c:343
struct cJSON cJSON
void cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
Definition: cJSON.c:688
char * string
Definition: cJSON.h:59
int cJSON_HasObjectItem(cJSON *object, const char *string)
Definition: cJSON.c:667
cJSON * cJSON_CreateFalse(void)
Definition: cJSON.c:698
unsigned char uint8_t
Definition: uthash.h:78
cJSON * cJSON_DetachItemFromArray(cJSON *array, int which)
Definition: cJSON.c:681
void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
Definition: cJSON.c:693
double valuedouble
Definition: cJSON.h:58
Definition: cJSON.h:47
uint16_t valueuint16
Definition: cJSON.h:55
void cJSON_DeleteItemFromObject(cJSON *object, const char *string)
Definition: cJSON.c:685
char * valuestring
Definition: cJSON.h:51
void cJSON_AddItemToArray(cJSON *array, cJSON *item)
Definition: cJSON.c:675
cJSON * cJSON_CreateArray(void)
Definition: cJSON.c:707
void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
Definition: cJSON.c:679