kc3-lang/gnulib/lib/unistr/u16-mbtouc-aux.c

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• Hash : 1602f0af
  Author :
  Date : 2012-01-01T10:04:58
  

  maint: update all copyright year number ranges
  
  Run "make update-copyright".
  

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• lib/unistr/u16-mbtouc-aux.c

• /* Conversion UTF-16 to UCS-4.
     Copyright (C) 2001-2002, 2006-2007, 2009-2012 Free Software Foundation, Inc.
     Written by Bruno Haible <bruno@clisp.org>, 2001.
  
     This program is free software: you can redistribute it and/or modify it
     under the terms of the GNU Lesser General Public License as published
     by the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include "unistr.h"
  
  #if defined IN_LIBUNISTRING || HAVE_INLINE
  
  int
  u16_mbtouc_aux (ucs4_t *puc, const uint16_t *s, size_t n)
  {
    uint16_t c = *s;
  
    if (c < 0xdc00)
      {
        if (n >= 2)
          {
            if (s[1] >= 0xdc00 && s[1] < 0xe000)
              {
                *puc = 0x10000 + ((c - 0xd800) << 10) + (s[1] - 0xdc00);
                return 2;
              }
            /* invalid multibyte character */
          }
        else
          {
            /* incomplete multibyte character */
          }
      }
    /* invalid multibyte character */
    *puc = 0xfffd;
    return 1;
  }
  
  #endif
  

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