C++ (Cpp) NData::RemoveData Examples

Example #1

File: NUnicodeParser.cpp Project: refnum/nano

//============================================================================
//		NUnicodeParser::RemoveBOM : Remove a BOM prefix.
//----------------------------------------------------------------------------
void NUnicodeParser::RemoveBOM(NData &theData, NStringEncoding theEncoding) const
{   NStringEncoding		bomEncoding;
    NRange				theBOM;



    // Validate our parameters
    NN_ASSERT(NStringEncoder::IsEncodingUTF(theEncoding));
    NN_UNUSED(theEncoding);



    // Get the state we need
    bomEncoding = GetBOM(theData, theBOM);
    if (!theBOM.IsEmpty())
        theData.RemoveData(theBOM);



    // Validate the encoding
    //
    // Endian-specific BOMs should match the format we expected.
    switch (bomEncoding) {
    case kNStringEncodingInvalid:
        // No BOM
        break;

    case kNStringEncodingUTF8:
        NN_ASSERT(theEncoding == kNStringEncodingUTF8);
        break;

    case kNStringEncodingUTF16BE:
        NN_ASSERT(theEncoding == kNStringEncodingUTF16 || theEncoding == kNStringEncodingUTF16BE);
        break;

    case kNStringEncodingUTF16LE:
        NN_ASSERT(theEncoding == kNStringEncodingUTF16 || theEncoding == kNStringEncodingUTF16LE);
        break;

    case kNStringEncodingUTF32BE:
        NN_ASSERT(theEncoding == kNStringEncodingUTF32 || theEncoding == kNStringEncodingUTF32BE);
        break;

    case kNStringEncodingUTF32LE:
        NN_ASSERT(theEncoding == kNStringEncodingUTF32 || theEncoding == kNStringEncodingUTF32LE);
        break;

    default:
        NN_LOG("Invalid encoding: %d", theEncoding);
        break;
    }
}