#ifndef _DELIMITED_FILE_H_
#define _DELIMITED_FILE_H_

#include <cstdio>
#include <string>
#include <vector>

class CTokenlizedFile
{
public:

    CTokenlizedFile(const char* lpszDelimiter = "\t");
    ~CTokenlizedFile();

    enum 
    {
        MAX_DELIMITER_NUM   = 16,
        MAX_LINE_BUFFER     = 16384,
        DEFAULT_COLUMN_NUM  = 64
    };

    bool Open(const char* szFilename, const char* szOpenMode = "rt");
    void Close();
    
    bool ReadColumn();      // Ä÷³ À̸§À» Àд´Ù.
    bool ReadLine();        // ÇÑ ¶óÀÎÀ» Àд´Ù.

    bool IsEOF() { return (NULL != m_lpFile) ? (0 != feof(m_lpFile)) : false; }

    size_t GetColumnNum()   { return m_ColumnInfo.size();   }
    size_t GetCurrentLine() { return m_nLine;               }
    size_t GetValueNum()    { return m_ColumnValues.size(); }

    const char* GetColumnName(size_t nIndex);
    const char* GetStringValue(size_t nIndex);
    const char* GetStringValue(const char* szColumnName);

private:

    struct ColumnInfo
    {
        unsigned long   m_dwHashKey;
        std::string     m_szColumnName;

        ColumnInfo() : m_dwHashKey(0) { m_szColumnName.assign(""); }
        ColumnInfo(const char* szColumnName);
        ColumnInfo(std::string& szColumnName);
    };
    
    FILE*   m_lpFile;
    size_t  m_nLine;
    char    m_szDelimiter[MAX_DELIMITER_NUM];

    typedef std::vector<ColumnInfo>     ColumnArray;
    typedef std::vector<std::string>    ValueArray;

    ColumnArray     m_ColumnInfo;
    ValueArray      m_ColumnValues;
};


inline const char* CTokenlizedFile::GetColumnName(size_t nIndex)
{
    return (nIndex < m_ColumnInfo.size()) ? 
        m_ColumnInfo[nIndex].m_szColumnName.c_str() : NULL;
}

inline const char* CTokenlizedFile::GetStringValue(size_t nIndex)
{
    return (nIndex < m_ColumnValues.size()) ? 
        m_ColumnValues[nIndex].c_str() : NULL;
}

#endif