unicode.h

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/*
 * Copyright (c) 2001,2002,2003 Mike Matsnev.  All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice immediately at the beginning of the file, without modification,
 *    this list of conditions, and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Absolutely no warranty of function or purpose is made by the author
 *    Mike Matsnev.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * $Id: Unicode.h,v 1.8.2.2 2003/12/17 12:19:58 mike Exp $
 * 
 */

#ifndef UNICODE_H
#define UNICODE_H

class Unicode {
public:
  // conversion to unicode
  static int	      WCLength(int codepage,const char *mbstr,int mblen);
  static void	      ToWC(int codepage,const char *mbstr,int mblen,
    wchar_t *wcstr,int wclen);

  // conversion to system default codepage
  static int	      MBLength(const wchar_t *wcstr,int wclen);
  static void	      ToMB(const wchar_t *wcstr,int wclen,char *mbstr,int mblen);

  // utf8
  static Buffer<char> ToUtf8(const CString& cs);

  // convenience functions
  static Buffer<wchar_t>  ToWCbuf(int codepage,const char *mbstr,int mblen);
  static Buffer<char>	  ToMBbuf(const wchar_t *wcstr,int wclen);

  // MFC interface
  static CString	  ToCS(const wchar_t *wcstr,int wclen);
  static CString	  ToCS(const Buffer<wchar_t>& wcbuf) {
    return ToCS(wcbuf,wcbuf.size());
  }
  static CString	  ToCS(int codepage,const char *mbstr,int mblen) {
    return ToCS(ToWCbuf(codepage,mbstr,mblen));
  }

  static Buffer<wchar_t>  ToWCbuf(const CString& str);
  static Buffer<wchar_t>  ToWCbufZ(const CString& str);

  // codepages support
  static int		  GetNumCodePages();
  static const TCHAR	  *GetCodePageName(int num);
  static const wchar_t	  *GetCodePageNameW(int num);
  static int		  GetIntCodePage(UINT mscp);
  static UINT		  GetMSCodePage(int cp);
  static int		  FindCodePage(const TCHAR *name);
  static int		  DefaultCodePage();
  static const wchar_t	  *GetTable(int cp); // only for builtin encodings

  // codepage detection
  static int	      DetectCodePage(const char *mbstr,int mblen);

  // case conversion
  static Buffer<wchar_t>  Lower(const Buffer<wchar_t>& str);

  // sortkey generation
  static Buffer<char>  SortKey(LCID lcid,const wchar_t *str,int len);
  static Buffer<char>  SortKey(LCID lcid,const wchar_t *str) {
    return SortKey(lcid,str,wcslen(str));
  }
};

#endif