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refactor cJSONUtils_GetPointer

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This commit is contained in:
Max Bruckner 2017-04-30 12:57:49 +02:00
parent 4642d6575f
commit 378a333ee2
2 changed files with 13 additions and 11 deletions
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22
cJSON_Utils.c
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@ -245,12 +245,14 @@ static cJSON_bool decode_array_index_from_pointer(const unsigned char * const po
return 1;
}
CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer)
CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON * const object, const char *pointer)
{
cJSON *current_element = object;
/* follow path of the pointer */
while ((*pointer++ == '/') && object)
while ((pointer[0] == '/') && (current_element != NULL))
{
if (cJSON_IsArray(object))
pointer++;
if (cJSON_IsArray(current_element))
{
size_t index = 0;
if (!decode_array_index_from_pointer((const unsigned char*)pointer, &index))
@ -258,18 +260,18 @@ CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer)
return NULL;
}
object = get_array_item(object, index);
current_element = get_array_item(current_element, index);
}
else if (cJSON_IsObject(object))
else if (cJSON_IsObject(current_element))
{
object = object->child;
current_element = current_element->child;
/* GetObjectItem. */
while (object && cJSONUtils_Pstrcasecmp((unsigned char*)object->string, (const unsigned char*)pointer))
while ((current_element != NULL) && cJSONUtils_Pstrcasecmp((unsigned char*)current_element->string, (const unsigned char*)pointer))
{
object = object->next;
current_element = current_element->next;
}
/* skip to the next path token or end of string */
while (*pointer && (*pointer != '/'))
while ((pointer[0] != '\0') && (pointer[0] != '/'))
{
pointer++;
}
@ -280,7 +282,7 @@ CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer)
}
}
return object;
return current_element;
}
/* JSON Patch implementation. */

2
cJSON_Utils.h
View File

@ -23,7 +23,7 @@
#include "cJSON.h"
/* Implement RFC6901 (https://tools.ietf.org/html/rfc6901) JSON Pointer spec. */
CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer);
CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON * const object, const char *pointer);
/* Implement RFC6902 (https://tools.ietf.org/html/rfc6902) JSON Patch spec. */
CJSON_PUBLIC(cJSON *) cJSONUtils_GeneratePatches(cJSON *from, cJSON *to);