str.h

dget是一个基于Linux平台的多线程下载工具, 采用C++开发。主要支持FTP, HTTP, MMS, RTSP协议下载, 目前为止主要实现了FTP, HTTP, MMS,RTSP协议的多线程下载

/****************************************************************************
 *
 *  Copyright (C) 2000-2001 RealNetworks, Inc. All rights reserved.
 *
 *  This program is free software.  It may be distributed under the terms
 *  in the file LICENSE, found in the top level of the source distribution.
 *
 */

#ifndef _STR_H
#define _STR_H

#include "types.h"
#include "tlist.h"

class CBuffer
{
public:
    CBuffer( void );
    CBuffer( const CBuffer& other );
    CBuffer( size_t len );
    CBuffer( CPBYTE pbuf, size_t len );
    ~CBuffer( void );

    CBuffer& operator=( const CBuffer& other );
    BYTE  operator[]( size_t n ) const;
    BYTE& operator[]( size_t n );

    void   Clear( void );

    void   Set( CPBYTE pbuf, size_t len );
    size_t GetSize( void ) const;
    void   SetSize( size_t len );
    PBYTE  GetBuffer( void );
    CPBYTE GetBuffer( void ) const;
    void   SetBuffer( CPBYTE pbuf );

protected:
    size_t m_nAlloc;
    size_t m_nLen;
    PBYTE  m_buf;
};

class CString
{
public:
    CString( void );
    CString( const CString& other );
    CString( CPCHAR sz );
    CString( CPCHAR buf, size_t len );
    CString( char c, UINT nrep = 1 );
    ~CString( void );

    CString& operator=( const CString& other );
    CString& operator=( CPCHAR sz );

    void  Set( CPCHAR buf, size_t len );

    UINT    GetLength( void ) const;
    bool    IsEmpty( void ) const;
    int     Compare( const CString& other ) const;
    int     CompareNoCase( const CString& other ) const;

    char    GetAt( UINT pos ) const;
    char&   GetAt( UINT pos );
    void    SetAt( UINT pos, char c );
    void    Append( CPCHAR sz );
    void    ToLower( void );
    void    ToUpper( void );
    void    DeQuote( void );

    CPCHAR Find( char c, UINT pos = 0 ) const;

    inline operator CPCHAR( void )      const { assert(m_sz); return m_sz; }
    inline char  operator[]( int pos )  const { return GetAt( pos ); }

protected:
    PCHAR   m_sz;
};
typedef TDoubleList<CString> CStringList;

inline bool operator==( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) == 0); }
inline bool operator==( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) == 0); }
inline bool operator==( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) == 0); }

inline bool operator!=( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) != 0); }
inline bool operator!=( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) != 0); }
inline bool operator!=( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) != 0); }

inline bool operator<=( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) <= 0); }
inline bool operator<=( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) <= 0); }
inline bool operator<=( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) > 0); }

inline bool operator>=( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) >= 0); }
inline bool operator>=( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) >= 0); }
inline bool operator>=( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) < 0); }

inline bool operator<( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) < 0); }
inline bool operator<( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) < 0); }
inline bool operator<( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) >= 0); }

inline bool operator>( const CString& lhs, const CString& rhs ) { return (lhs.Compare( rhs ) > 0); }
inline bool operator>( const CString& lhs, CPCHAR rhs )         { return (lhs.Compare( rhs ) > 0); }
inline bool operator>( CPCHAR lhs, const CString& rhs )         { return (rhs.Compare( lhs ) <= 0); }

#endif //ndef _STR_H