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.
115 lines
2.6 KiB
115 lines
2.6 KiB
/*****************************************************************/
|
|
/** Microsoft Windows for Workgroups **/
|
|
/** Copyright (C) Microsoft Corp., 1991-1992 **/
|
|
/*****************************************************************/
|
|
|
|
/*
|
|
strnchar.cxx
|
|
NLS/DBCS-aware string class:QueryNumChar method
|
|
|
|
This file contains the implementation of the QueryNumChar method
|
|
for the STRING class. It is separate so that clients of STRING which
|
|
do not use this operator need not link to it.
|
|
|
|
FILE HISTORY:
|
|
terryk 04/04/91 Creation
|
|
|
|
*/
|
|
|
|
#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 EXTENDED_STRINGS
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::QueryNumChar
|
|
|
|
SYNOPSIS: return the total number of character within the string
|
|
|
|
RETURNS: The number of logical character within the string
|
|
|
|
NOTES:
|
|
Treats erroneous string as having length 0
|
|
|
|
HISTORY:
|
|
terryk 04/04/91 Written
|
|
beng 07/23/91 Allow on erroneous string
|
|
|
|
********************************************************************/
|
|
|
|
INT NLS_STR::QueryNumChar() const
|
|
{
|
|
if (QueryError())
|
|
return 0;
|
|
|
|
ISTR istrCurPos( *this );
|
|
INT cchCounter = 0;
|
|
|
|
for ( ;
|
|
this->QueryChar( istrCurPos ) != '\0';
|
|
istrCurPos++, cchCounter ++ )
|
|
;
|
|
|
|
return cchCounter;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::QueryTextLength
|
|
|
|
SYNOPSIS: Calculate length of text in CHARS, sans terminator
|
|
|
|
RETURNS: Count of CHARs
|
|
|
|
NOTES:
|
|
Compare QueryNumChar, which returns a number of glyphs.
|
|
In a DBCS environment, this member will return 2 CHARS for
|
|
each double-byte character, since a CHAR is there only 8 bits.
|
|
|
|
HISTORY:
|
|
beng 07/23/91 Created
|
|
|
|
********************************************************************/
|
|
|
|
INT NLS_STR::QueryTextLength() const
|
|
{
|
|
return _cchLen / sizeof(CHAR);
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
NAME: NLS_STR::QueryTextSize
|
|
|
|
SYNOPSIS: Calculate length of text in BYTES, including terminator
|
|
|
|
RETURNS: Count of BYTES
|
|
|
|
NOTES:
|
|
QueryTextSize returns the number of bytes needed to duplicate
|
|
the string into a byte vector.
|
|
|
|
HISTORY:
|
|
beng 07/23/91 Created
|
|
|
|
********************************************************************/
|
|
|
|
INT NLS_STR::QueryTextSize() const
|
|
{
|
|
return _cchLen+sizeof(CHAR);
|
|
}
|
|
#endif // EXTENDED_STRINGS
|