cJSON_Utils.c File Reference

#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "cJSON_Utils.h"

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Functions
char *	cJSONUtils_FindPointerFromObjectTo (cJSON *object, cJSON *target)
cJSON *	cJSONUtils_GetPointer (cJSON *object, const char *pointer)
int	cJSONUtils_ApplyPatches (cJSON *object, cJSON *patches)
void	cJSONUtils_AddPatchToArray (cJSON *array, const char *op, const char *path, cJSON *val)
cJSON *	cJSONUtils_GeneratePatches (cJSON *from, cJSON *to)
void	cJSONUtils_SortObject (cJSON *object)
cJSON *	cJSONUtils_MergePatch (cJSON *target, cJSON *patch)
cJSON *	cJSONUtils_GenerateMergePatch (cJSON *from, cJSON *to)

Function Documentation

void cJSONUtils_AddPatchToArray	(	cJSON *	array,
		const char *	op,
		const char *	path,
		cJSON *	val
	)

{cJSONUtils_GeneratePatch(array,op,path,0,val);}

int cJSONUtils_ApplyPatches	(	cJSON *	object,
		cJSON *	patches
	)

References cJSON::child, cJSON_Array, cJSON::next, and cJSON::type.

{
    int err;
    if (patches->type!=cJSON_Array) return 1;   /* malformed patches. */
    if (patches) patches=patches->child;
    while (patches)
    {
        if ((err=cJSONUtils_ApplyPatch(object,patches))) return err;
        patches=patches->next;
    }
    return 0;
}

char* cJSONUtils_FindPointerFromObjectTo	(	cJSON *	object,
		cJSON *	target
	)

References cJSON::child, cJSON_Array, cJSON_Object, cJSONUtils_FindPointerFromObjectTo(), cJSON::next, and cJSON::string.

Referenced by cJSONUtils_FindPointerFromObjectTo().

{
    int type=object->type,c=0;cJSON *obj=0;

    if (object==target) return strdup("");

    for (obj=object->child;obj;obj=obj->next,c++)
    {
        char *found=cJSONUtils_FindPointerFromObjectTo(obj,target);
        if (found)
        {
            if (type==cJSON_Array)
            {
                char *ret=(char*)malloc(strlen(found)+23);
                sprintf(ret,"/%d%s",c,found);
                free(found);
                return ret;
            }
            else if (type==cJSON_Object)
            {
                char *ret=(char*)malloc(strlen(found)+cJSONUtils_PointerEncodedstrlen(obj->string)+2);
                *ret='/';cJSONUtils_PointerEncodedstrcpy(ret+1,obj->string);
                strcat(ret,found);
                free(found);
                return ret;
            }
            free(found);
            return 0;
        }
    }
    return 0;
}

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cJSON* cJSONUtils_GenerateMergePatch	(	cJSON *	from,
		cJSON *	to
	)

References cJSON::child, cJSON_AddItemToObject(), cJSON_CreateNull(), cJSON_CreateObject(), cJSON_Delete(), cJSON_Duplicate(), cJSON_Object, cJSONUtils_GenerateMergePatch(), cJSONUtils_SortObject(), cJSON::next, cJSON::string, and cJSON::type.

Referenced by cJSONUtils_GenerateMergePatch().

{
    cJSON *patch=0;
    if (!to) return cJSON_CreateNull();
    if (to->type!=cJSON_Object || !from || from->type!=cJSON_Object) return cJSON_Duplicate(to,1);
    cJSONUtils_SortObject(from);
    cJSONUtils_SortObject(to);
    from=from->child;to=to->child;
    patch=cJSON_CreateObject();
    while (from || to)
    {
        int compare=from?(to?strcmp(from->string,to->string):-1):1;
        if (compare<0)
        {
            cJSON_AddItemToObject(patch,from->string,cJSON_CreateNull());
            from=from->next;
        }
        else if (compare>0)
        {
            cJSON_AddItemToObject(patch,to->string,cJSON_Duplicate(to,1));
            to=to->next;
        }
        else
        {
            if (cJSONUtils_Compare(from,to)) cJSON_AddItemToObject(patch,to->string,cJSONUtils_GenerateMergePatch(from,to));
            from=from->next;to=to->next;
        }
    }
    if (!patch->child) {cJSON_Delete(patch);return 0;}
    return patch;
}

cJSON* cJSONUtils_GeneratePatches	(	cJSON *	from,
		cJSON *	to
	)

References cJSON_CreateArray().

{
    cJSON *patches=cJSON_CreateArray(); 
    cJSONUtils_CompareToPatch(patches,"",from,to);
    return patches;
}

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cJSON* cJSONUtils_GetPointer	(	cJSON *	object,
		const char *	pointer
	)

References cJSON_Array, cJSON_GetArrayItem(), cJSON_Object, cJSON::string, and cJSON::type.

{
    while (*pointer++=='/' && object)
    {
        if (object->type==cJSON_Array)
        {
            int which=0; while (*pointer>='0' && *pointer<='9') which=(10*which) + *pointer++ - '0';
            if (*pointer && *pointer!='/') return 0;
            object=cJSON_GetArrayItem(object,which);
        }
        else if (object->type==cJSON_Object)
        {
            object=object->child;   while (object && cJSONUtils_Pstrcasecmp(object->string,pointer)) object=object->next;   /* GetObjectItem. */
            while (*pointer && *pointer!='/') pointer++;
        }
        else return 0;
    }
    return object;
}

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cJSON* cJSONUtils_MergePatch	(	cJSON *	target,
		cJSON *	patch
	)

References cJSON::child, cJSON_AddItemToObject(), cJSON_CreateObject(), cJSON_Delete(), cJSON_DeleteItemFromObject(), cJSON_DetachItemFromObject(), cJSON_Duplicate(), cJSON_NULL, cJSON_Object, cJSONUtils_MergePatch(), cJSON::next, cJSON::string, and cJSON::type.

Referenced by cJSONUtils_MergePatch().

{
    if (!patch || patch->type != cJSON_Object) {cJSON_Delete(target);return cJSON_Duplicate(patch,1);}
    if (!target || target->type != cJSON_Object) {cJSON_Delete(target);target=cJSON_CreateObject();}

    patch=patch->child;
    while (patch)
    {
        if (patch->type == cJSON_NULL) cJSON_DeleteItemFromObject(target,patch->string);
        else
        {
            cJSON *replaceme=cJSON_DetachItemFromObject(target,patch->string);
            cJSON_AddItemToObject(target,patch->string,cJSONUtils_MergePatch(replaceme,patch));
        }
        patch=patch->next;
    }
    return target;
}

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void cJSONUtils_SortObject

(

cJSON *

object

)

References cJSON::child.

Referenced by cJSONUtils_GenerateMergePatch().

{object->child=cJSONUtils_SortList(object->child);}

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