text: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
  /* ***** BEGIN LICENSE BLOCK *****
   * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   *
   * The contents of this file are subject to the Mozilla 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/MPL/
   *
   * 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.
   *
   * The Initial Developer of the Original Code is
   * Netscape Communications.
   * Portions created by the Initial Developer are Copyright (C) 2001
   * the Initial Developer. All Rights Reserved.
   *
   * Contributor(s):
   *   Scott Collins <scc@mozilla.org> (original author)
   *
   * Alternatively, the contents of this file may be used under the terms of
   * either of the GNU General Public License Version 2 or later (the "GPL"),
   * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
   * in which case the provisions of the GPL or the LGPL are applicable instead
   * of those above. If you wish to allow use of your version of this file only
   * under the terms of either the GPL or the LGPL, and not to allow others to
   * use your version of this file under the terms of the MPL, indicate your
   * decision by deleting the provisions above and replace them with the notice
   * and other provisions required by the GPL or the LGPL. If you do not delete
   * the provisions above, a recipient may use your version of this file under
   * the terms of any one of the MPL, the GPL or the LGPL.
   *
   * ***** END LICENSE BLOCK ***** */
  
  #ifndef nsLiteralString_h___
  #define nsLiteralString_h___
  
  #ifndef nscore_h___
  #include "nscore.h"
  #endif
  
  #ifndef nsDependentString_h___
  #include "nsDependentString.h"
  #endif
  
  
  #if 0
  inline
  const nsDependentString
  literal_string( const nsAString::char_type* aPtr )
    {
      return nsDependentString(aPtr);
    }
  
  inline
  const nsDependentString
  literal_string( const nsAString::char_type* aPtr, PRUint32 aLength )
    {
      return nsDependentString(aPtr, aLength);
    }
  
  inline
  const nsDependentCString
  literal_string( const nsACString::char_type* aPtr )
    {
      return nsDependentCString(aPtr);
    }
  
  inline
  const nsDependentCString
  literal_string( const nsACString::char_type* aPtr, PRUint32 aLength )
    {
      return nsDependentCString(aPtr, aLength);
    }
  #endif
  
  #if defined(HAVE_CPP_CHAR16_T) || defined(HAVE_CPP_2BYTE_WCHAR_T)
  #if defined(HAVE_CPP_CHAR16_T)
    //PR_STATIC_ASSERT(sizeof(char16_t) == 2);
    #define NS_LL(s)                                u##s
  #else
    //PR_STATIC_ASSERT(sizeof(wchar_t) == 2);
    #define NS_LL(s)                                L##s
  #endif
    #define NS_MULTILINE_LITERAL_STRING(s)          nsDependentString(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/2)-1))
    #define NS_MULTILINE_LITERAL_STRING_INIT(n,s)   n(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/2)-1))
    #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s)  const nsDependentString n(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/2)-1))
    typedef nsDependentString nsLiteralString;
  #else
    #define NS_LL(s)                                s
    #define NS_MULTILINE_LITERAL_STRING(s)          NS_ConvertASCIItoUTF16(s, PRUint32(sizeof(s)-1))
    #define NS_MULTILINE_LITERAL_STRING_INIT(n,s)   n(s, PRUint32(sizeof(s)-1))
    #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s)  const NS_ConvertASCIItoUTF16 n(s, PRUint32(sizeof(s)-1))
    typedef NS_ConvertASCIItoUTF16 nsLiteralString;
  #endif
  
  /*
   * Macro arguments used in concatenation or stringification won't be expanded.
   * Therefore, in order for |NS_L(FOO)| to work as expected (which is to expand
   * |FOO| before doing whatever |NS_L| needs to do to it) a helper macro needs
   * to be inserted in between to allow the macro argument to expand.
   * See "3.10.6 Separate Expansion of Macro Arguments" of the CPP manual for a
   * more accurate and precise explanation.
   */
  
  #define NS_L(s)                                   NS_LL(s)
  
  #define NS_LITERAL_STRING(s)                      static_cast<const nsAFlatString&>(NS_MULTILINE_LITERAL_STRING(NS_LL(s)))
  #define NS_LITERAL_STRING_INIT(n,s)               NS_MULTILINE_LITERAL_STRING_INIT(n, NS_LL(s))
  #define NS_NAMED_LITERAL_STRING(n,s)              NS_NAMED_MULTILINE_LITERAL_STRING(n, NS_LL(s))
  
  #define NS_LITERAL_CSTRING(s)                     static_cast<const nsDependentCString&>(nsDependentCString(s, PRUint32(sizeof(s)-1)))
  #define NS_LITERAL_CSTRING_INIT(n,s)              n(s, PRUint32(sizeof(s)-1))
  #define NS_NAMED_LITERAL_CSTRING(n,s)             const nsDependentCString n(s, PRUint32(sizeof(s)-1))
  
  typedef nsDependentCString nsLiteralCString;
  
  #endif /* !defined(nsLiteralString_h___) */
  