CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer)
{
/* follow path of the pointer */
while ((*pointer++ == '/') && object)
{
if (cJSON_IsArray(object))
{
size_t which = 0;
/* parse array index */
while ((*pointer >= '0') && (*pointer <= '9'))
{
which = (10 * which) + (size_t)(*pointer++ - '0');
}
if (*pointer && (*pointer != '/'))
{
/* not end of string or new path token */
return NULL;
}
if (which > INT_MAX)
{
return NULL;
}
object = cJSON_GetArrayItem(object, (int)which);
}
else if (cJSON_IsObject(object))
{
object = object->child;
/* GetObjectItem. */
while (object && cJSONUtils_Pstrcasecmp((unsigned char*)object->string, (const unsigned char*)pointer))
{
object = object->next;
}
/* skip to the next path token or end of string */
while (*pointer && (*pointer != '/'))
{
pointer++;
}
}
else
{
return NULL;
}
}
return object;
}
cJSON *cJSONUtils_GetPointer(cJSON *object, const char *pointer)
{
/* follow path of the pointer */
while ((*pointer++ == '/') && object)
{
if (object->type == cJSON_Array)
{
int which = 0;
/* parse array index */
while ((*pointer >= '0') && (*pointer <= '9'))
{
which = (10 * which) + (*pointer++ - '0');
}
if (*pointer && (*pointer != '/'))
{
/* not end of string or new path token */
return 0;
}
object = cJSON_GetArrayItem(object, which);
}
else if (object->type == cJSON_Object)
{
object = object->child;
/* GetObjectItem. */
while (object && cJSONUtils_Pstrcasecmp(object->string, pointer))
{
object = object->next;
}
/* skip to the next path token or end of string */
while (*pointer && (*pointer != '/'))
{
pointer++;
}
}
else
{
return 0;
}
}
return object;
}
