os/ossrv/genericopenlibs/openenvcore/libc/src/wcwidth.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Name        : wcwidth.cpp
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// Part of     : MRT LIBC
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// Contains the source for wcwidth API implementation.
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// Version     :
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//
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#include <e32std.h>
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#include <wchar.h>
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#include <wctype.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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EXPORT_C int
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wcwidth(wchar_t wc)
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{
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	int rVal,result = 0;
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	TChar::TCjkWidth rWid;
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	//check for end of string
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	if(wc == L'\0')
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	{
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		return (result);
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	}
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	//check if the character is printable
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	rVal = iswprint((wint_t)wc);
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	//if printable
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	if(rVal)
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	{
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		rWid = (TChar::TCjkWidth)TChar((TUint)wc).GetCjkWidth();
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		if(rWid == TChar::ENarrow)
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		{
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			result = TChar::EHalfWidth;
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		}
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		if(rWid == TChar::EWide)
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		{
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			result = TChar::EFullWidth;
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		}
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	}
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	else
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	{
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		result = -1;//if the character is not printable
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	}
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	return (result);
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}
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#ifdef __cplusplus
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}
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#endif
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