xstring.h

该程序是用vc开发的对动态数组进行管理的DLL

#if !defined(__CXSTR_H__)
#define __CXSTR_H__

class XFile;
class Xio;

class XString 
{
public:
	// destructor
	~XString  ();

	// constructor
	XString   (  );
	XString   ( const char ch );
	XString   ( const char *str );
	XString   ( const XString   & str );

	// operator =,+=
	XString   & operator= ( char c ) ;
	XString   & operator= ( const char * str );
	XString   & operator= ( const XString   & str );

	XString   & operator+= ( char c ) ;
	XString   & operator+= ( const char * str );
	XString   & operator+= ( const XString   & str );
	
	// process Number
	static	XString   fromNum(double d);
	char      * ascii ( );
	char      * latin1 ( );
	double		toNum ( );
	int		    args ( const char* format, ...);
	int			toInt ( );
	short		toShort ( );
	long		toLong ( );
	float		toFloat ( );
	double      toDouble ( );

	// compare operator: ==, !=, <, >, >=, <=
	static     int	compare ( const XString &s1, const XString & s2 );
	static     int	compare ( const char * s1, const XString  &s2 );
	static     int	compare ( const XString &s1, const char * s2 );

	// length
	int			setWidth( long );
	int         length ( );

	//cut,convert
	XString     left ( int len );
	XString     right ( int len ) ;
	XString     mid ( int index, int len ) ;
	XString     lower ()  ;
	XString     upper ()  ;
	XString     stripWhiteSpace ()  ;
	XString     simplifyWhiteSpace ()  ;

	// find
	int			find ( char c, int index = 0, bool cs = true ) ;
	int			find ( const XString & str, int index = 0, bool cs = true ) ;
	int			find ( const char * str, int index = 0 , bool cs = true ) ;

	// insert
	XString &	insert ( int index, XString & xstr );
	XString &	insert ( int index, char * str );
	XString &	insert ( int index, char c );

	// replace
	XString &	replace ( XString & delxstr, XString & insxstr,bool cs = true );
	XString &	replace ( char *delstr, char * insstr,bool cs = true );
	XString &	replace ( char *delstr, XString & insxstr,bool cs = true );
	XString &	replace ( XString & delxstr, char * insstr,bool cs = true );
	XString &	replace ( char delstr, char insxstr,bool cs = true );

	// contains
	int			contain ( const char * str, bool cs = true );
	int			contain ( const char str, bool cs = true );
	int			contain ( const XString & str, bool cs = true );

	// sections
	XString		section ( const char * sep, int start);
	XString		section ( const char  sep, int start);
	XString		section ( const XString & sep, int start);

	XString		section ( const char * sep, int start, int end  );
	XString		section ( const char   sep, int start, int end  );
	XString		section ( const XString &sep, int start, int end  );

	// fill convert
	XString &	fill(char ch);
	XString 	reverse();
	char		at( int i );
	char		operator[] ( int i );

	// data
	int         m_nLength;
	char*       m_pString;

};
	// global operator
   	extern      bool        operator==( const XString & s1, const XString & s2 );
	extern      bool        operator==( const XString & s1, const XString & s2 );
	extern     	bool		operator== ( const XString & s1, const char * s2 );
	extern     	bool		operator== ( const char * s1, const XString & s2 );
		
	extern     	bool		operator!= ( const XString & s1, const XString & s2 );
	extern     	bool		operator!= ( const XString & s1, const char * s2 );
	extern     	bool		operator!= ( const char * s1, const XString & s2 );
	
	extern     	bool		operator<  ( const XString & s1, const char * s2 );
	extern     	bool		operator<  ( const char * s1, const XString & s2 );
	extern     	bool		operator<  ( const XString & s1, const XString & s2 );

	extern     	bool		operator<= ( const XString & s1, const char * s2 );
	extern     	bool		operator<= ( const char * s1, const XString & s2 );
	extern     	bool		operator<=  ( const XString & s1, const XString & s2 );
	extern     	bool		operator>  ( const XString & s1, const char * s2 );
	extern     	bool		operator>  ( const char * s1, const XString & s2 );
	extern     	bool		operator>  ( const XString & s1, const XString & s2 );

	extern     	bool		operator>= ( const XString & s1, const char * s2 );
	extern     	bool		operator>= ( const char * s1, const XString & s2 );
	extern     	bool		operator>= ( const XString & s1, const XString & s2 );

	extern     	XString     operator+  (const   XString &xstr,const char c ) ;
	extern     	XString     operator+  (const   XString &xstr,const char * c );
	extern     	XString     operator+  (const   XString &xstr,const XString   & str );
	extern     	XString     operator+  (const char c, const   XString &xstr) ;
	extern     	XString     operator+  (const char * c ,const   XString &xstr);
	
	// number convert function
	extern      char        numToChar(int i);


#endif