122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1997
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//
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// File: bnstr.h
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//
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//--------------------------------------------------------------------------
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//
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// BNSTR.HXX: Generic string class.
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//
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#if !defined(_BNSTR_HXX_)
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#define _BNSTR_HXX_
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#include "basics.h"
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class BNSTR
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{
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public:
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BNSTR ( const BNSTR & str ) ;
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BNSTR ( SZC sz = NULL ) ;
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~ BNSTR () ;
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SZC Szc () const { return _sz ; }
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// Allow use of a BNSTR anywhere an SZC is allowed
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operator const char * () const
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{ return _sz ; }
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// Prefix or suffix the string with the given string or character
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SZC Prefix ( SZC szPrefix ) ;
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SZC Suffix ( SZC szSuffix ) ;
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SZC Suffix ( char chSuffix );
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// Clear the string to empty
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void Reset () ;
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// Return the current length of the string
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UINT Length () const
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{ return _cchStr ; }
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// Return the maximum allowable length of the string
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UINT Max () const
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{ return _cchMax ; }
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// Truncate the string to the given length.
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void Trunc ( UINT cchLen ) ;
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// Destructive assignment: release the current buffer and reset the BNSTR
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SZ Transfer () ;
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void Transfer ( BNSTR & str ) ;
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// Assignment operators
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BNSTR & operator = ( const BNSTR & str )
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{ Update( str ); return *this ; }
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BNSTR & operator = ( SZC szSource )
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{ Update( szSource ) ; return *this; }
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// Assignment function (for error checking)
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bool Assign ( SZC szcSource )
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{ return Update( szcSource ) ; }
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bool Assign ( SZC szcData, UINT cchLen ) ;
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// Concatenation operators
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BNSTR & operator += ( SZC szSource )
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{ Suffix( szSource ) ; return *this ; }
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BNSTR & operator += ( char chSource )
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{ Suffix( chSource ) ; return *this ; }
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// Comparison: functions and operators
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// Standard low/eq/high plus case comparator.
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INT Compare ( SZC szSource, bool bIgnoreCase = false ) const ;
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bool operator == ( SZC szSource ) const ;
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bool operator != ( SZC szSource ) const ;
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char operator [] ( UINT iChar ) const ;
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// Formating
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bool Vsprintf ( SZC szcFmt, va_list valist ) ;
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bool Sprintf ( SZC szcFmt, ... ) ;
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bool SprintfAppend ( SZC szcFmt, ... ) ;
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// Cr/Lf expansion or contraction
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bool ExpandNl () ;
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bool ContractNl () ;
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bool ExpandEscaped ();
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bool ContractEscaped ();
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// Expand the string to the given length; make it a blank, null terminated
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// string.
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bool Pad ( UINT cchLength ) ;
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// Change all alphabetic characters to the given case
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void UpCase ( bool bToUpper = true ) ;
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bool ReplaceSymName ( SZC szcSymName,
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SZC szcSymNameNew,
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bool bCaseInsensitive = true );
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// Find the next occurrence of the given character in the string;
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// Return -1 if not found.
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INT Index ( char chFind, UINT uiOffset = 0 ) const ;
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// Convert the string to a floating-point number.
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double Atof ( UINT uiOffset = 0 ) const ;
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UINT CbyteCPT() const
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{ return _cchMax + 1 ; }
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protected:
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bool Update ( SZC szc ) ;
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bool Grow ( UINT cchNewSize = 0, SZ * ppszNew = NULL ) ;
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UINT _cchMax ;
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UINT _cchStr ;
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SZ _sz ;
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private:
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void DeleteSz () ;
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static SZC _pmt ;
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};
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#endif // !defined(_STR_HXX_)
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// End of BNSTR.HXX
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