Mozilla/mozilla/intl/unicharutil/util/nsUnicharUtils.cpp
alecf%netscape.com ae864ff1f5 first cut at case-insensitive wrappers for ns*Strings - not part of build
git-svn-id: svn://10.0.0.236/trunk@103863 18797224-902f-48f8-a5cc-f745e15eee43
2001-09-26 20:53:57 +00:00

104 lines
3.0 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Alec Flett <alecf@netscape.com>
*/
#include "nsUnicharUtils.h"
#include "nsUnicharUtilCIID.h"
#include "nsICaseConversion.h"
#include "nsIServiceManager.h"
// global cache of the case conversion service
static nsICaseConversion *gCaseConv = nsnull;
static NS_DEFINE_CID(kUnicharUtilCID, NS_UNICHARUTIL_CID);
nsresult NS_InitCaseConversion() {
if (gCaseConv) return NS_OK;
return nsServiceManager::GetService(kUnicharUtilCID,
NS_GET_IID(nsICaseConversion),
(nsISupports**)&gCaseConv);
}
class ConvertToLowerCase
{
public:
typedef PRUnichar value_type;
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength)
{
gCaseConv->ToLower(aSource, NS_CONST_CAST(PRUnichar*,aSource), aSourceLength);
return 0;
}
};
void
ToLowerCase( nsAString& aString)
{
nsAString::iterator fromBegin, fromEnd;
ConvertToLowerCase converter;
copy_string(aString.BeginWriting(fromBegin), aString.EndWriting(fromEnd), converter);
}
class ConvertToUpperCase
{
public:
typedef PRUnichar value_type;
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength)
{
gCaseConv->ToUpper(aSource, NS_CONST_CAST(PRUnichar*,aSource), aSourceLength);
return 0;
}
};
void
ToUpperCase( nsAString& aString )
{
nsAString::iterator fromBegin, fromEnd;
ConvertToUpperCase converter;
copy_string(aString.BeginWriting(fromBegin), aString.EndWriting(fromEnd), converter);
}
class CaseInsensitivePRUnicharComparator
{
public:
PRBool operator()( PRUnichar lhs, PRUnichar rhs ) const {
PRUnichar lhsUpper; PRUnichar rhsUpper;
gCaseConv->ToUpper(lhs, &lhsUpper);
gCaseConv->ToUpper(rhs, &rhsUpper);
return lhsUpper = rhsUpper;
}
};
PRBool
CaseInsensitiveFindInReadable( const nsAString& aPattern, nsReadingIterator<PRUnichar>& aSearchStart, nsReadingIterator<PRUnichar>& aSearchEnd )
{
NS_NOTYETIMPLEMENTED("Need to copy over string code");
#if 0
return FindInReadable_Impl(aPattern, aSearchStart, aSearchEnd, CaseInsensitivePRUnicharComparator());
#endif
return PR_FALSE;
}