mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
262 lines
4.7 KiB
262 lines
4.7 KiB
/*****************************************************************/
|
|
/** Microsoft Windows for Workgroups **/
|
|
/** Copyright (C) Microsoft Corp., 1991-1992 **/
|
|
/*****************************************************************/
|
|
|
|
/*
|
|
strmisc.cxx
|
|
Miscellaneous members of the string classes
|
|
|
|
The NLS_STR and ISTR classes have many inline member functions
|
|
which bloat clients, especially in debug versions. This file
|
|
gives those unhappy functions a new home.
|
|
|
|
FILE HISTORY:
|
|
beng 04/26/91 Created (relocated from string.hxx)
|
|
gregj 05/22/92 Added ToOEM, ToAnsi methods
|
|
|
|
*/
|
|
|
|
#include "npcommon.h"
|
|
|
|
extern "C"
|
|
{
|
|
#include <netlib.h>
|
|
}
|
|
|
|
#if defined(DEBUG)
|
|
static const CHAR szFileName[] = __FILE__;
|
|
#define _FILENAME_DEFINED_ONCE szFileName
|
|
#endif
|
|
#include <npassert.h>
|
|
|
|
#include <npstring.h>
|
|
|
|
|
|
#ifdef DEBUG
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::CheckIstr
|
|
|
|
SYNOPSIS: Checks association between ISTR and NLS_STR instances
|
|
|
|
ENTRY: istr - ISTR to check against this NLS_STR
|
|
|
|
NOTES:
|
|
Does nothing in retail build.
|
|
|
|
HISTORY:
|
|
beng 07/23/91 Header added; removed redundant "nls" parameter.
|
|
|
|
********************************************************************/
|
|
|
|
VOID NLS_STR::CheckIstr( const ISTR& istr ) const
|
|
{
|
|
UIASSERT( (istr).QueryPNLS() == this );
|
|
UIASSERT( (istr).QueryVersion() == QueryVersion() );
|
|
}
|
|
|
|
|
|
VOID NLS_STR::IncVers()
|
|
{
|
|
_usVersion++;
|
|
}
|
|
|
|
|
|
VOID NLS_STR::InitializeVers()
|
|
{
|
|
_usVersion = 0;
|
|
}
|
|
|
|
|
|
VOID NLS_STR::UpdateIstr( ISTR *pistr ) const
|
|
{
|
|
pistr->SetVersion( QueryVersion() );
|
|
}
|
|
|
|
|
|
USHORT NLS_STR::QueryVersion() const
|
|
{
|
|
return _usVersion;
|
|
}
|
|
|
|
|
|
const CHAR * NLS_STR::QueryPch() const
|
|
{
|
|
if (QueryError()) {
|
|
UIASSERT(FALSE);
|
|
return NULL;
|
|
}
|
|
|
|
return _pchData;
|
|
}
|
|
|
|
|
|
const CHAR * NLS_STR::QueryPch( const ISTR& istr ) const
|
|
{
|
|
if (QueryError())
|
|
return NULL;
|
|
|
|
CheckIstr( istr );
|
|
return _pchData+istr.QueryIB();
|
|
}
|
|
|
|
|
|
WCHAR NLS_STR::QueryChar( const ISTR& istr ) const
|
|
{
|
|
if (QueryError())
|
|
return 0;
|
|
|
|
CheckIstr( istr );
|
|
return *(_pchData+istr.QueryIB());
|
|
}
|
|
#endif // DEBUG
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::ToOEM
|
|
|
|
SYNOPSIS: Convert string to OEM character set
|
|
|
|
ENTRY: No parameters
|
|
|
|
EXIT: String is in OEM character set
|
|
|
|
RETURNS:
|
|
|
|
NOTES: If the string is already OEM, nothing happens.
|
|
A string may be constructed as OEM by constructing
|
|
as usual, then calling SetOEM(). Casemap conversion
|
|
does NOT work on OEM strings!
|
|
|
|
HISTORY:
|
|
gregj 05/22/92 Created
|
|
|
|
********************************************************************/
|
|
|
|
VOID NLS_STR::ToOEM()
|
|
{
|
|
if (IsOEM())
|
|
return; // string is already OEM
|
|
|
|
SetOEM();
|
|
|
|
#ifdef WIN31
|
|
::AnsiToOem( _pchData, _pchData );
|
|
#endif
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::ToAnsi
|
|
|
|
SYNOPSIS: Convert string to ANSI character set
|
|
|
|
ENTRY: No parameters
|
|
|
|
EXIT: String is in ANSI character set
|
|
|
|
RETURNS:
|
|
|
|
NOTES: If the string is already ANSI (the default), nothing
|
|
happens.
|
|
|
|
HISTORY:
|
|
gregj 05/22/92 Created
|
|
|
|
********************************************************************/
|
|
|
|
VOID NLS_STR::ToAnsi()
|
|
{
|
|
if (!IsOEM())
|
|
return; // string is already ANSI
|
|
|
|
SetAnsi();
|
|
|
|
#ifdef WIN31
|
|
::OemToAnsi( _pchData, _pchData );
|
|
#endif
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::SetOEM
|
|
|
|
SYNOPSIS: Declares string to be in OEM character set
|
|
|
|
ENTRY: No parameters
|
|
|
|
EXIT: OEM flag set
|
|
|
|
RETURNS:
|
|
|
|
NOTES: Use this method if you construct a string which is
|
|
known to be in the OEM character set (e.g., it came
|
|
back from a Net API).
|
|
|
|
HISTORY:
|
|
gregj 05/22/92 Created
|
|
|
|
********************************************************************/
|
|
|
|
VOID NLS_STR::SetOEM()
|
|
{
|
|
_fsFlags |= SF_OEM;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::SetAnsi
|
|
|
|
SYNOPSIS: Declares string to be in ANSI character set
|
|
|
|
ENTRY: No parameters
|
|
|
|
EXIT: OEM flag set
|
|
|
|
RETURNS:
|
|
|
|
NOTES: This method is used primarily by NLS_STR itself,
|
|
when an ANSI string is assigned to a previously
|
|
OEM one.
|
|
|
|
HISTORY:
|
|
gregj 05/22/92 Created
|
|
|
|
********************************************************************/
|
|
|
|
VOID NLS_STR::SetAnsi()
|
|
{
|
|
_fsFlags &= ~SF_OEM;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::IsDBCSLeadByte
|
|
|
|
SYNOPSIS: Returns whether a character is a lead byte or not
|
|
|
|
ENTRY: ch - byte to check
|
|
|
|
EXIT: TRUE if "ch" is a lead byte
|
|
|
|
RETURNS:
|
|
|
|
NOTES: This method works whether the string is OEM or ANSI.
|
|
In a non-DBCS build, this function is inline and
|
|
always returns FALSE.
|
|
|
|
HISTORY:
|
|
gregj 04/02/93 Created
|
|
|
|
********************************************************************/
|
|
|
|
BOOL NLS_STR::IsDBCSLeadByte( CHAR ch ) const
|
|
{
|
|
return IS_LEAD_BYTE(ch);
|
|
}
|