class Messenger
{
public:
	void Output( const std::string &message );
	int GetNextErrorLine();
};

class ErrorInfo
{
	int errorCode;
	std::string keyword;
	std::string sourceFilePath;
	int sourceLineNum;
	int errorLineNum;

public:
	ErrorInfo( int errorCode, const std::string &keyword, const std::string &sourceFilePath, int sourceLineNum )
		: errorCode( errorCode )
		, keyword( keyword )
		, sourceFilePath( sourceFilePath )
		, sourceLineNum( sourceLineNum )
	{
	}
	ErrorInfo( int errorCode, const std::string &keyword, int sourceIndex );

	int GetErrorCode() const
	{
		return errorCode;
	}
	bool IsWarning() const
	{
		return ( errorCode < -100 );
	}
	const std::string &GetKeyword() const
	{
		return keyword;
	}
	const std::string &GetSourceFilePath() const
	{
		return sourceFilePath;
	}
	int GetSourceLineNum() const
	{
		return sourceLineNum;
	}
	int GetErrorLineNum() const
	{
		return errorLineNum;
	}

	std::string GetMessageString() const;
	std::string GetFullMessageString() const;
};
typedef std::vector<ErrorInfo> ErrorInfos;

class ErrorMessenger
	: public Messenger
{
	ErrorInfos errorInfos;
	Jenga::Common::Strings synonymKeyWords;

public:
	void Output( const ErrorInfo &errorInfo );
	void Output( int errorCode, const std::string &keyword, int sourceIndex = -1 );
	void Output( int errorCode, const char *keyword, int sourceIndex = -1 );
	void OutputFatalError();

	int GetErrorCount() const;
	bool HasError() const;
	int GetWarningCount() const;

	void ShowErrorLine( int errorLineNum );
};