simplecsvparser.h

ATL开发指南PDF格式

// SimpleCSVParser.h: interface for the CSimpleCSVParser class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SIMPLECSVPARSER_H__0547B8AF_6921_11D3_B1D4_00E09801D33E__INCLUDED_)
#define AFX_SIMPLECSVPARSER_H__0547B8AF_6921_11D3_B1D4_00E09801D33E__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

enum dataTypes { stringType, intType, floatType, dateType };


class CColumnDefinition
{
public:
	CColumnDefinition() 
	{
		m_dwColType = stringType;
		m_dwSize = 0;
		m_dwPrecision = 0;
	};
	void SetColumnData(LPCTSTR colName, DWORD dwColType, DWORD dwSize, DWORD dwPrecision)
	{ 
		m_colName = colName;
		m_dwColType = dwColType;
		m_dwSize = dwSize;
		m_dwPrecision = dwPrecision;
	}

	LPCTSTR GetColumnName() { return m_colName; };
	DWORD	GetColumnType() { return m_dwColType; };
	DWORD	GetColumnSize() { return m_dwSize; };
	DWORD	GetColumnPrecision() { return m_dwPrecision; };

	LPCTSTR GetColumnValue() { return m_colValue; };
	void	SetColumnValue(LPCTSTR colValue) { m_colValue = colValue; };


protected:
	CString m_colName;
	DWORD m_dwColType;
	DWORD m_dwSize;
	DWORD m_dwPrecision;
	CString m_colValue;
};

typedef void (*ForEachColumnFunc)(CColumnDefinition* pColDef);
class CSimpleCSVParser  
{
public:
	BOOL GotoRow(long nIndex); 
	CColumnDefinition* GetColumnDefinition(int ndx);
	long GetColumnCount();
	long GetRowCount() const;
	void CleanColumnData();

	BOOL ParseCurrentRow();
	void InitializeRowPtrs();
	void DisplayColumns();
	DWORD ColumnTypeFromString(LPTSTR strColType);
	void ParseColumns();
	void Cleanup();
	BOOL Initialize(LPCTSTR fileName);
	CSimpleCSVParser();
	virtual ~CSimpleCSVParser();

	void ForEachColumn(ForEachColumnFunc pForEachColumnFunc);

	// Movement functions
	BOOL MoveFirst();
	BOOL MoveLast();
	BOOL MoveNext();
	BOOL MovePrev();

protected:
	long m_nCurRow;
	LPBYTE m_pFirstRow;
	LPBYTE m_pLastRow;
	LPBYTE m_pCurRow;
	BOOL m_bInitialized;
	LPBYTE m_pData;
	CPtrArray m_columns;
	long	m_nRows;
	long	m_nCols;

	LPBYTE FindNextRow(LPBYTE pPos);
	LPBYTE FindPrevRow(LPBYTE pPos);

	friend class CColumnDefinition;
};

#endif // !defined(AFX_SIMPLECSVPARSER_H__0547B8AF_6921_11D3_B1D4_00E09801D33E__INCLUDED_)