hx_next_line.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hx_next_line.h,v 1.2.36.3 2004/07/09 01:48:24 hubbe Exp $
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 * the file under the current version of the RealNetworks Community
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 * ***** END LICENSE BLOCK ***** */

#ifndef HLX_NEXT_LINE_H
#define HLX_NEXT_LINE_H

#include <stdio.h>

#include "ut_string.h"

class HLXNextLine
{
public:
    HLXNextLine();
    ~HLXNextLine();

    bool Open(const UTString& name="");	 // Open file
    void Close();		// Close file
    bool IsOpen() const;	// Return true if open
    bool Reset();		// If file rewindable seek to beginning
    bool GetLine(UTString& line); // Get next line
    bool End() const;		// return true if at end of file

    int LineNum() const;        // Current line number

protected:
				// replacement for system fgets that
				// looks for \r in addition to \n
    char* FGetS(char*& pBuf, int& size, FILE* fp);

private:
    HLXNextLine(const HLXNextLine& rhs); // Dont implement
    HLXNextLine& operator=(const HLXNextLine&);

    UTString m_name;	// File name: if "" then use stdin
    FILE* m_pFile;		// Use stdio for now
    char* m_pBuf;		// Buffer for reading lines
    int m_bufSize;              // Size of read buffer
    int m_lineNum;              // Current line number
};

inline
int HLXNextLine::LineNum() const
{
    return m_lineNum;
}

#endif // HLX_NEXT_LINE_H