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C

Swap JSON Objects

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Demonstrates how to swap two JSON objects within a JSON document.

Chilkat C Downloads

C
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObject json;
    int index1;
    int index2;
    HCkJsonObject jsonSara;

    success = FALSE;

    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);

    // Load the following JSON:

    // {
    //   "petter": {
    //     "DOB": "26/02/1986",
    //     "gender": "male",
    //     "country": "US"
    //   },
    //   "Sara": {
    //     "DOB": "13/05/1982",
    //     "gender": "female",
    //     "country": "FR"
    //   },
    //   "Jon": {
    //     "DOB": "19/03/1984",
    //     "gender": "male",
    //     "country": "UK"
    //   }
    // }

    success = CkJsonObject_LoadFile(json,"qa_data/json/people.json");
    if (success == FALSE) {
        printf("%s\n",CkJsonObject_lastErrorText(json));
        CkJsonObject_Dispose(json);
        return;
    }

    // Swap the positions of Jon and Sara.
    index1 = CkJsonObject_IndexOf(json,"Jon");
    index2 = CkJsonObject_IndexOf(json,"Sara");
    CkJsonObject_Swap(json,index1,index2);

    // We have this now:
    printf("%s\n",CkJsonObject_emit(json));

    // {
    //   "petter": {
    //     "DOB": "26/02/1986",
    //     "gender": "male",
    //     "country": "US"
    //   },
    //   "Jon": {
    //     "DOB": "19/03/1984",
    //     "gender": "male",
    //     "country": "UK"
    //   },
    //   "Sara": {
    //     "DOB": "13/05/1982",
    //     "gender": "female",
    //     "country": "FR"
    //   }
    // }

    // To swap an inner member:

    jsonSara = CkJsonObject_Create();
    CkJsonObject_ObjectOf2(json,"Sara",jsonSara);

    index1 = CkJsonObject_IndexOf(jsonSara,"DOB");
    index2 = CkJsonObject_IndexOf(jsonSara,"country");
    CkJsonObject_Swap(jsonSara,index1,index2);

    // We now have this:
    printf("%s\n",CkJsonObject_emit(json));

    // {
    //   "petter": {
    //     "DOB": "26/02/1986",
    //     "gender": "male",
    //     "country": "US"
    //   },
    //   "Jon": {
    //     "DOB": "19/03/1984",
    //     "gender": "male",
    //     "country": "UK"
    //   },
    //   "Sara": {
    //     "country": "FR",
    //     "gender": "female",
    //     "DOB": "13/05/1982"
    //   }
    // }


    CkJsonObject_Dispose(json);
    CkJsonObject_Dispose(jsonSara);

    }