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- /*
- Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
- 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 cJSON__h
- #define cJSON__h
- #ifdef __cplusplus
- extern "C" {
- #endif
- #if !defined(__WINDOWS__) \
- && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) \
- || defined(_WIN32))
- #define __WINDOWS__
- #endif
- #ifdef __WINDOWS__
- /**
- * When compiling for windows, we specify a specific calling convention to avoid
- * issues where we are being called from a project with a different default
- * calling convention. For windows you have 3 define options:
- * CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever
- * dllexport symbols
- * CJSON_EXPORT_SYMBOLS - Define this on library build when you want to
- * dllexport symbols (default)
- * CJSON_IMPORT_SYMBOLS - Define this if you want to dllimport symbol
- *
- * For *nix builds that support visibility attribute, you can define similar
- * behavior by setting default visibility to hidden by adding
- * -fvisibility=hidden (for gcc)
- * or
- * -xldscope=hidden (for sun cc)
- * to CFLAGS, then using the CJSON_API_VISIBILITY flag to "export" the same
- * symbols the way CJSON_EXPORT_SYMBOLS does
- */
- #define CJSON_CDECL __cdecl
- #define CJSON_STDCALL __stdcall
- /* export symbols by default, this is necessary for copy pasting the C and
- header file */
- #if !defined(CJSON_HIDE_SYMBOLS) && !defined(CJSON_IMPORT_SYMBOLS) \
- && !defined(CJSON_EXPORT_SYMBOLS)
- #define CJSON_EXPORT_SYMBOLS
- #endif
- #if defined(CJSON_HIDE_SYMBOLS)
- #define CJSON_PUBLIC(type) type CJSON_STDCALL
- #elif defined(CJSON_EXPORT_SYMBOLS)
- #define CJSON_PUBLIC(type) __declspec(dllexport) type CJSON_STDCALL
- #elif defined(CJSON_IMPORT_SYMBOLS)
- #define CJSON_PUBLIC(type) __declspec(dllimport) type CJSON_STDCALL
- #endif
- #else /* !__WINDOWS__ */
- #define CJSON_CDECL
- #define CJSON_STDCALL
- #if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined(__SUNPRO_C)) \
- && defined(CJSON_API_VISIBILITY)
- #define CJSON_PUBLIC(type) __attribute__((visibility("default"))) type
- #else
- #define CJSON_PUBLIC(type) type
- #endif
- #endif
- /* project version */
- #define CJSON_VERSION_MAJOR 1
- #define CJSON_VERSION_MINOR 7
- #define CJSON_VERSION_PATCH 10
- #include <stddef.h>
- /* cJSON Types: */
- #define cJSON_Invalid (0)
- #define cJSON_False (1 << 0)
- #define cJSON_True (1 << 1)
- #define cJSON_NULL (1 << 2)
- #define cJSON_Number (1 << 3)
- #define cJSON_String (1 << 4)
- #define cJSON_Array (1 << 5)
- #define cJSON_Object (1 << 6)
- #define cJSON_Raw (1 << 7) /* raw json */
- #define cJSON_IsReference 256
- #define cJSON_StringIsConst 512
- /* The cJSON structure: */
- typedef struct cJSON {
- /* next/prev allow you to walk array/object chains. Alternatively, use
- GetArraySize/GetArrayItem/GetObjectItem */
- struct cJSON *next;
- struct cJSON *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;
- /* The type of the item, as above. */
- int type;
- /* The item's string, if type==cJSON_String and type == cJSON_Raw */
- char *valuestring;
- /* writing to valueint is DEPRECATED, use cJSON_SetNumberValue instead */
- int valueint;
- /* The item's number, if type==cJSON_Number */
- double valuedouble;
- /* 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 {
- /* malloc/free are CDECL on Windows regardless of the default calling
- * convention of the compiler, so ensure the hooks allow passing those
- * functions directly. */
- void *(CJSON_CDECL *malloc_fn)(size_t sz);
- void(CJSON_CDECL *free_fn)(void *ptr);
- } cJSON_Hooks;
- typedef int cJSON_bool;
- /* Limits how deeply nested arrays/objects can be before cJSON rejects to parse
- them. This is to prevent stack overflows. */
- #ifndef CJSON_NESTING_LIMIT
- #define CJSON_NESTING_LIMIT 1000
- #endif
- /* returns the version of cJSON as a string */
- CJSON_PUBLIC(const char *) cJSON_Version(void);
- /* Supply malloc, realloc and free functions to cJSON */
- CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks *hooks);
- /* Memory Management: the caller is always responsible to free the results from
- * all variants of cJSON_Parse (with cJSON_Delete) and cJSON_Print (with stdlib
- * free, cJSON_Hooks.free_fn, or cJSON_free as appropriate). The exception is
- * cJSON_PrintPreallocated, where the caller has full responsibility of the
- * buffer. */
- /* Supply a block of JSON, and this returns a cJSON object you can interrogate.
- */
- CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
- /* ParseWithOpts allows you to require (and check) that the JSON is null
- * terminated, and to retrieve the pointer to the final byte parsed. */
- /* If you supply a ptr in return_parse_end and parsing fails, then
- * return_parse_end will contain a pointer to the error so will match
- * cJSON_GetErrorPtr(). */
- CJSON_PUBLIC(cJSON *)
- cJSON_ParseWithOpts(const char *value, const char **return_parse_end,
- cJSON_bool require_null_terminated);
- /* Render a cJSON entity to text for transfer/storage. */
- CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
- /* Render a cJSON entity to text for transfer/storage without any formatting. */
- CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
- /* 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 */
- CJSON_PUBLIC(char *)
- cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
- /* Render a cJSON entity to text using a buffer already allocated in memory with
- * given length. Returns 1 on success and 0 on failure. */
- /* NOTE: cJSON is not always 100% accurate in estimating how much memory it will
- * use, so to be safe allocate 5 bytes more than you actually need */
- CJSON_PUBLIC(cJSON_bool)
- cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length,
- const cJSON_bool format);
- /* Delete a cJSON entity and all subentities. */
- CJSON_PUBLIC(void) cJSON_Delete(cJSON *c);
- /* Returns the number of items in an array (or object). */
- CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
- /* Retrieve item number "index" from array "array". Returns NULL if
- * unsuccessful. */
- CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
- /* Get item "string" from object. Case insensitive. */
- CJSON_PUBLIC(cJSON *)
- cJSON_GetObjectItem(const cJSON *const object, const char *const string);
- CJSON_PUBLIC(cJSON *)
- cJSON_GetObjectItemCaseSensitive(const cJSON *const object,
- const char *const string);
- CJSON_PUBLIC(cJSON_bool)
- cJSON_HasObjectItem(const 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. */
- CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
- /* Check if the item is a string and return its valuestring */
- CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item);
- /* These functions check the type of an item */
- CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON *const item);
- CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON *const item);
- /* These calls create a cJSON item of the appropriate type. */
- CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
- CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
- CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
- CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean);
- CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
- CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
- /* raw json */
- CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
- CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
- CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
- /* Create a string where valuestring references a string so
- it will not be freed by cJSON_Delete */
- CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
- /* Create an object/arrray that only references it's elements so
- they will not be freed by cJSON_Delete */
- CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
- CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
- /* These utilities create an Array of count items. */
- CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
- CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
- CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
- CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char **strings, int count);
- /* Append item to the specified array/object. */
- CJSON_PUBLIC(void) cJSON_AddItemToArray(cJSON *array, cJSON *item);
- CJSON_PUBLIC(void)
- cJSON_AddItemToObject(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. WARNING: When this function was
- * used, make sure to always check that (item->type & cJSON_StringIsConst) is
- * zero before writing to `item->string` */
- CJSON_PUBLIC(void)
- cJSON_AddItemToObjectCS(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. */
- CJSON_PUBLIC(void) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
- CJSON_PUBLIC(void)
- cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
- /* Remove/Detatch items from Arrays/Objects. */
- CJSON_PUBLIC(cJSON *)
- cJSON_DetachItemViaPointer(cJSON *parent, cJSON *const item);
- CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
- CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
- CJSON_PUBLIC(cJSON *)
- cJSON_DetachItemFromObject(cJSON *object, const char *string);
- CJSON_PUBLIC(cJSON *)
- cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
- CJSON_PUBLIC(void)
- cJSON_DeleteItemFromObject(cJSON *object, const char *string);
- CJSON_PUBLIC(void)
- cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
- /* Update array items. */
- CJSON_PUBLIC(void)
- cJSON_InsertItemInArray(
- cJSON *array, int which,
- cJSON *newitem); /* Shifts pre-existing items to the right. */
- CJSON_PUBLIC(cJSON_bool)
- cJSON_ReplaceItemViaPointer(cJSON *const parent, cJSON *const item,
- cJSON *replacement);
- CJSON_PUBLIC(void)
- cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
- CJSON_PUBLIC(void)
- cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem);
- CJSON_PUBLIC(void)
- cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object, const char *string,
- cJSON *newitem);
- /* Duplicate a cJSON item */
- CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
- /* Duplicate will create a new, identical cJSON item to the one you pass, in new
- memory that will need to be released. With recurse!=0, it will duplicate any
- children connected to the item. The item->next and ->prev pointers are always
- zero on return from Duplicate. */
- /* Recursively compare two cJSON items for equality. If either a or b is NULL or
- * invalid, they will be considered unequal.
- * case_sensitive determines if object keys are treated case sensitive (1) or
- * case insensitive (0) */
- CJSON_PUBLIC(cJSON_bool)
- cJSON_Compare(const cJSON *const a, const cJSON *const b,
- const cJSON_bool case_sensitive);
- CJSON_PUBLIC(void) cJSON_Minify(char *json);
- /* Helper functions for creating and adding items to an object at the same time.
- They return the added item or NULL on failure. */
- CJSON_PUBLIC(cJSON *)
- cJSON_AddNullToObject(cJSON *const object, const char *const name);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddTrueToObject(cJSON *const object, const char *const name);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddFalseToObject(cJSON *const object, const char *const name);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddBoolToObject(cJSON *const object, const char *const name,
- const cJSON_bool boolean);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddNumberToObject(cJSON *const object, const char *const name,
- const double number);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddStringToObject(cJSON *const object, const char *const name,
- const char *const string);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddRawToObject(cJSON *const object, const char *const name,
- const char *const raw);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddObjectToObject(cJSON *const object, const char *const name);
- CJSON_PUBLIC(cJSON *)
- cJSON_AddArrayToObject(cJSON *const object, const char *const name);
- /* When assigning an integer value, it needs to be propagated to valuedouble
- too. */
- #define cJSON_SetIntValue(object, number) \
- ((object) ? (object)->valueint = (object)->valuedouble = (number) \
- : (number))
- /* helper for the cJSON_SetNumberValue macro */
- CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
- #define cJSON_SetNumberValue(object, number) \
- ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) \
- : (number))
- /* Macro for iterating over an array or object */
- #define cJSON_ArrayForEach(element, array) \
- for (element = (array != NULL) ? (array)->child : NULL; element != NULL; \
- element = element->next)
- /* malloc/free objects using the malloc/free functions that have been set with
- cJSON_InitHooks */
- CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
- CJSON_PUBLIC(void) cJSON_free(void *object);
- #ifdef __cplusplus
- }
- #endif
- #endif
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