Source code of Windows XP (NT5)
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//+------------------------------------------------------------------
//
// File: cbaseall.cxx
//
// Contents: implementation for base class for all command line
// classes, both the individual command line object
// classes and the overall parsing class
//
// Synoposis: This base class contains the print function pointer
// the default print implementation and the constructor
// error value.
//
// Classes: CBaseCmdline
//
// Functions:
//
// History: 12/27/91 Lizch Created
// 04/17/92 Lizch Converted to NLS_STR
// 09/09/92 Lizch Changed SUCCESS to NO_ERROR
// 09/18/92 Lizch Precompile headers
// 10/13/93 DeanE Converted to WCHAR
//
//-------------------------------------------------------------------
#include <comtpch.hxx>
#pragma hdrstop
#include <cmdlinew.hxx> // public cmdlinew stuff
#include "_clw.hxx" // private cmdlinew stuff
#include <ctype.h> // is functions
void DefaultDisplayMethod(LPCNSTR nszMessage);
void (* CBaseCmdline::_pfnDisplay)(LPCNSTR nszMessage) = DefaultDisplayMethod;
NCHAR CBaseCmdline::_nszErrorBuf[];
//+------------------------------------------------------------------
//
// Function: CBaseCmdline Constructor
//
// Member: CBaseCmdline
//
// Synoposis: Initialises error string and print function pointer
//
// History: Created 05/17/92 Lizch
//
//-------------------------------------------------------------------
CBaseCmdline::CBaseCmdline()
{
_pfnDisplay = DefaultDisplayMethod;
_iLastError = CMDLINE_NO_ERROR;
}
//+------------------------------------------------------------------
//
// Function: CBaseCmdline::SetDisplayMethod, public
//
// Member: CBaseCmdline
//
// Synoposis: Sets the print function pointer to the passed value. This
// enables client programs to replace the default printf
// print method with their own (eg. wprintf).
//
// Arguments: [pfnNewDisplayMethod] - Function pointer that replaces
// current display function.
//
// Returns: none
//
// History: Created 05/17/92 Lizch
//
//-------------------------------------------------------------------
void CBaseCmdline::SetDisplayMethod(
void (* pfnNewDisplayMethod)(LPCNSTR nszMessage))
{
_pfnDisplay = pfnNewDisplayMethod;
}
//+------------------------------------------------------------------
//
// Function: DefaultDisplayMethod
//
// Synoposis: Used to wrap the printf function to get around problems
// equating a function pointer expecting a char * to the
// printf function expecting (char *,...)
//
// Arguments: [nszMessage] - Message to display.
//
// Returns: none
//
// History: Created 05/17/92 Lizch
//
//-------------------------------------------------------------------
void DefaultDisplayMethod(LPCNSTR nszMessage)
{
_nprintf(_TEXTN("%s"), nszMessage);
}
//+------------------------------------------------------------------
//
// Function: CBaseCmdline::QueryError, public
//
// Member: CBaseCmdline
//
// Synoposis: Returns the internal error indicator and resets it
// to CMDLINE_NO_ERROR.
//
// Effects: sets _iLastError to CMDLINE_NO_ERROR.
//
// Arguments: none
//
// Returns: the last error
//
// History: Created 05/17/92 Lizch
//
//-------------------------------------------------------------------
INT CBaseCmdline::QueryError()
{
INT iLastError = _iLastError;
SetError(CMDLINE_NO_ERROR);
return(iLastError);
}
//+------------------------------------------------------------------
//
// Function: CBaseCmdline::SetError, public
//
// Member: CBaseCmdline
//
// Synoposis: Sets the internal error indicator to the passed value
//
// Effects: sets _iLastError to passed value.
//
// Arguments: [iLastError] - the new error value
//
// Returns: nothing
//
// History: Created 05/17/92 Lizch
//
//-------------------------------------------------------------------
void CBaseCmdline::SetError(INT iLastError)
{
_iLastError = iLastError;
}