C++ CDatum::GetBasicType方法代码示例

CComplexArray::CComplexArray (CDatum dSrc)

//	ComplexArray constructor

	{
	int i;

	if (dSrc.GetBasicType() == CDatum::typeStruct)
		{
		InsertEmpty(1);
		SetElement(0, dSrc);
		}
	else
		{
		int iCount = dSrc.GetCount();

		//	Clone from another complex array

		if (iCount > 0)
			{
			InsertEmpty(iCount);

			for (i = 0; i < iCount; i++)
				SetElement(i, dSrc.GetElement(i));
			}
		}
	}

bool CDatum::IsEqual (CDatum dValue) const

//	IsEqual
//
//	Returns TRUE if the values are equal

	{
	switch (GetBasicType())
		{
		case typeNil:
			return dValue.IsNil();

		case typeTrue:
			return !dValue.IsNil();

		case typeInteger32:
		case typeInteger64:
		case typeIntegerIP:
		case typeDouble:
			return (dValue.IsNumber() && CNumberValue(*this).Compare(dValue) == 0);

		case typeString:
			return (dValue.GetBasicType() == typeString && strEquals(*this, dValue));

		case typeDateTime:
			return (dValue.GetBasicType() == typeDateTime && ((const CDateTime &)*this == (const CDateTime &)dValue));

		//	LATER
		case typeArray:
		case typeBinary:
		case typeStruct:
		case typeSymbol:
			return false;

		default:
			ASSERT(false);
			return false;
		}
	}

void CComplexStruct::AppendStruct (CDatum dDatum)

//	AppendStruct
//
//	Appends the element of the given structure

	{
	int i;

	if (dDatum.GetBasicType() == CDatum::typeStruct)
		{
		for (i = 0; i < dDatum.GetCount(); i++)
			SetElement(dDatum.GetKey(i), dDatum.GetElement(i));
		}
	}

bool CRunSession::OnStartSession (const SArchonMessage &Msg, DWORD dwTicket)

//	OnStartSession
//
//	Start the session

	{
	CDatum dCode = Msg.dPayload.GetElement(0);

	//	Initialize the process

	m_Process.LoadLibrary(LIBRARY_CORE);

	//	Parse into an expression (depending on the type of input)

	CDatum dExpression;
	if (dCode.GetBasicType() == CDatum::typeString)
		{
		CString sError;
		if (!CHexeDocument::ParseLispExpression(dCode, &dExpression, &sError))
			{
			SendMessageReplyError(MSG_ERROR_UNABLE_TO_COMPLY, strPattern(ERR_COMPILER, sError));
			return false;
			}
		}

	//	Otherwise we don't know how to parse the input

	else
		{
		SendMessageReplyError(MSG_ERROR_UNABLE_TO_COMPLY, ERR_UNABLE_TO_PARSE_CODE);
		return false;
		}

	//	Run the code

	CDatum dResult;
	CHexeProcess::ERunCodes iRun = m_Process.Run(dExpression, &dResult);

	//	Deal with the result

	return HandleResult(iRun, dResult);
	}

void CHexeMarkupEvaluator::OutputDatum (CDatum dValue)

//	OutputDatum
//
//	Outputs a datum to the resulting HTML page. NOTE: We expect the values to be
//	HTML compatible (i.e., caller is responsible for escaping).

	{
	int i;

	if (dValue.GetBasicType() == CDatum::typeArray)
		{
		for (i = 0; i < dValue.GetCount(); i++)
			OutputDatum(dValue.GetElement(i));
		}
	else
		{
		m_Output.Write(dValue.AsString());
		}
	}

void CHexeMarkupEvaluator::AddHeader (const CString &sField, CDatum dValue)

//	AddHeader
//
//	Adds the header

	{
	CHTTPMessage::SHeader *pNewHeader;

	switch (dValue.GetBasicType())
		{
		case CDatum::typeString:
			pNewHeader = m_Headers.Insert();
			pNewHeader->sField = sField;
			pNewHeader->sValue = dValue;
			break;

		default:
			pNewHeader = m_Headers.Insert();
			pNewHeader->sField = sField;
			pNewHeader->sValue = dValue.AsString();
		}
	}

bool CHexeMarkupEvaluator::ProcessHeader (SHTTPRequestCtx &Ctx, CDatum dResult)

//	ProcessHeader
//
//	Outputs the given header

	{
	//	Check for error

	if (dResult.IsError())
		{
		m_Output.Write(strPattern(ERR_PROCESSING_HEADER, dResult.AsString()));
		return true;
		}

	//	Processing depends on result type

	switch (dResult.GetBasicType())
		{
		case CDatum::typeNil:
			return true;

		//	If this is a string or anything else, we expect both field and value
		//	are in the same string and we need to parse it.

		default:
			{
			CString sData = dResult.AsString();

			//	Parse into field and value

			char *pPos = sData.GetParsePointer();
			while (strIsWhitespace(pPos))
				pPos++;

			//	Look for the field name

			char *pStart = pPos;
			while (*pPos != ':' && *pPos != '\0')
				pPos++;

			CString sField(pStart, pPos - pStart);
			if (sField.IsEmpty())
				{
				m_Output.Write(strPattern(ERR_NO_HEADER_FIELD, sData));
				return true;
				}

			//	Look for the value

			CString sValue;
			if (*pPos == ':')
				{
				pPos++;
				while (strIsWhitespace(pPos))
					pPos++;

				sValue = CString(pPos);
				}

			//	Done

			CHTTPMessage::SHeader *pNewHeader = m_Headers.Insert();
			pNewHeader->sField = sField;
			pNewHeader->sValue = sValue;
			}
		}

	return true;
	}

int CDatum::DefaultCompare (void *pCtx, const CDatum &dKey1, const CDatum &dKey2)

//	DefaultCompare
//
//	Default comparison routine used for sorting. Returns:
//
//	-1:		If dKey1 < dKey2
//	0:		If dKey1 == dKey2
//	1:		If dKey1 > dKey2
//
//	NOTES:
//
//	Nil == ""
//	Nil == {}
//	Nil == ()
//	"abc" != "ABC"

	{
	int i;

	//	If both are the same datatype, then compare

	CDatum::Types iType1 = dKey1.GetBasicType();
	CDatum::Types iType2 = dKey2.GetBasicType();

	//	If both types are equal, then compare

	if (iType1 == iType2)
		{
		switch (iType1)
			{
			case CDatum::typeNil:
			case CDatum::typeTrue:
				return 0;

			case CDatum::typeInteger32:
				if ((int)dKey1 > (int)dKey2)
					return 1;
				else if ((int)dKey1 < (int)dKey2)
					return -1;
				else
					return 0;

			case CDatum::typeInteger64:
				if ((DWORDLONG)dKey1 > (DWORDLONG)dKey2)
					return 1;
				else if ((DWORDLONG)dKey1 < (DWORDLONG)dKey2)
					return -1;
				else
					return 0;

			case CDatum::typeDouble:
				if ((double)dKey1 > (double)dKey2)
					return 1;
				else if ((double)dKey1 < (double)dKey2)
					return -1;
				else
					return 0;

			case CDatum::typeIntegerIP:
				return KeyCompare((const CIPInteger &)dKey1, (const CIPInteger &)dKey2);

			case CDatum::typeString:
				return KeyCompare((const CString &)dKey1, (const CString &)dKey2);

			case CDatum::typeDateTime:
				return ((const CDateTime &)dKey1).Compare((const CDateTime &)dKey2);

			case CDatum::typeArray:
				if (dKey1.GetCount() > dKey2.GetCount())
					return 1;
				else if (dKey1.GetCount() < dKey2.GetCount())
					return -1;
				else
					{
					for (i = 0; i < dKey1.GetCount(); i++)
						{
						CDatum dItem1 = dKey1.GetElement(i);
						CDatum dItem2 = dKey2.GetElement(i);
						int iItemCompare = CDatum::DefaultCompare(pCtx, dItem1, dItem2);
						if (iItemCompare != 0)
							return iItemCompare;
						}

					return 0;
					}

			case CDatum::typeStruct:
				if (dKey1.GetCount() > dKey2.GetCount())
					return 1;
				else if (dKey1.GetCount() < dKey2.GetCount())
					return -1;
				else
					{
					for (i = 0; i < dKey1.GetCount(); i++)
						{
						CString sItemKey1 = dKey1.GetKey(i);
						CString sItemKey2 = dKey2.GetKey(i);
						int iKeyCompare = KeyCompare(sItemKey1, sItemKey2);
						if (iKeyCompare != 0)
//.........这里部分代码省略.........