(Unicode C++) JSON Escape and Unescape a String

Demonstrates how to JSON escape or unescape a string.

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#include <CkStringBuilderW.h>

void ChilkatSample(void)
    {
    CkStringBuilderW sb;

    sb.Append(L"backslash: \\\\, A: \\u0041");
    wprintf(L"%s\n",sb.getAsString());

    // The output is:
    //    backslash: \\, A: \u0041

    // The keyword "json" can be used
    // to escape and unescape.  To escape is to encode.  To unescape is to decode.

    // Unescape (decode) the string in sb.
    sb.Decode(L"json",L"utf-8");
    wprintf(L"%s\n",sb.getAsString());

    // After JSON unescaping:
    //    backslash: \, A: A

    // Now JSON escape the string.
    sb.Encode(L"json",L"utf-8");
    wprintf(L"%s\n",sb.getAsString());

    // After JSON escaping:
    //    backslash: \\, A: A

    // Note: The "A" is not escaped to "\u0041" because there is no need.
    // The "\uXXXX" format would be produced for non-printable control chars.
    }