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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #ifndef nsICaseConversion_h__

 #define nsICaseConversion_h__

 #include "nsISupports.h"

 #include "nscore.h"

 // {07D3D8E0-9614-11d2-B3AD-00805F8A6670}

 #define NS_ICASECONVERSION_IID \

 { 0x7d3d8e0, 0x9614, 0x11d2, \

     { 0xb3, 0xad, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }

 class nsICaseConversion : public nsISupports {

 public: 

   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICASECONVERSION_IID)

   // Convert one Unicode character into upper case

   NS_IMETHOD ToUpper( char16_t aChar, char16_t* aReturn) = 0;

   // Convert one Unicode character into lower case

   NS_IMETHOD ToLower( char16_t aChar, char16_t* aReturn) = 0;

   // Convert one Unicode character into title case

   NS_IMETHOD ToTitle( char16_t aChar, char16_t* aReturn) = 0;

   // Convert an array of Unicode characters into upper case

   NS_IMETHOD ToUpper( const char16_t* anArray, char16_t* aReturn, uint32_t aLen) = 0;

   // Convert an array of Unicode characters into lower case

   NS_IMETHOD ToLower( const char16_t* anArray, char16_t* aReturn, uint32_t aLen) = 0;

   // case-insensitive char16_t* comparison - aResult returns similar

   // to strcasecmp

   NS_IMETHOD CaseInsensitiveCompare(const char16_t* aLeft, const char16_t* aRight, uint32_t aLength, int32_t* aResult) = 0;

 };

 NS_DEFINE_STATIC_IID_ACCESSOR(nsICaseConversion, NS_ICASECONVERSION_IID)

 #endif  /* nsICaseConversion_h__ */