2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>

          --- old/usr/src/lib/libc/port/locale/wcwidth.c
          +++ new/usr/src/lib/libc/port/locale/wcwidth.c
   1    1  /*
        2 + * Copyright 2013 Garrett D'Amore <garrett@damore.org>
   2    3   * Copyright (c) 1989, 1993
   3    4   *      The Regents of the University of California.  All rights reserved.
   4    5   * (c) UNIX System Laboratories, Inc.
   5    6   * All or some portions of this file are derived from material licensed
   6    7   * to the University of California by American Telephone and Telegraph
   7    8   * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   8    9   * the permission of UNIX System Laboratories, Inc.
   9   10   *
  10   11   * This code is derived from software contributed to Berkeley by
  11   12   * Paul Borman at Krystal Technologies.

  12   13   *
  13   14   * Redistribution and use in source and binary forms, with or without
  14   15   * modification, are permitted provided that the following conditions
  15   16   * are met:
  16   17   * 1. Redistributions of source code must retain the above copyright
  17   18   *    notice, this list of conditions and the following disclaimer.
  18   19   * 2. Redistributions in binary form must reproduce the above copyright
  19   20   *    notice, this list of conditions and the following disclaimer in the
  20   21   *    documentation and/or other materials provided with the distribution.
  21   22   * 4. Neither the name of the University nor the names of its contributors
  22   23   *    may be used to endorse or promote products derived from this software
  23   24   *    without specific prior written permission.
  24   25   *
  25   26   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26   27   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27   28   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28   29   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29   30   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30   31   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31   32   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32   33   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33   34   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34   35   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35   36   * SUCH DAMAGE.
  36   37   */

  37   38  
  38   39  /*
  39   40   * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
  40   41   * Use is subject to license terms.
  41   42   */
  42   43  
  43   44  #include "lint.h"
  44   45  #include <wchar.h>
  45   46  #include "_ctype.h"
  46   47  #include "runetype.h"
       48 +#include "localeimpl.h"
  47   49  
  48   50  #undef wcwidth
  49   51  
  50   52  int
  51      -wcwidth(wchar_t wc)
       53 +wcwidth_l(wchar_t wc, locale_t loc)
  52   54  {
  53   55          unsigned int x;
       56 +        const _RuneLocale *rl = loc->runelocale;
  54   57  
  55   58          if (wc == 0)
  56   59                  return (0);
  57   60  
  58      -        x = ((wc < 0 || wc >= _CACHED_RUNES) ? ___runetype(wc) :
  59      -            _CurrentRuneLocale->__runetype[wc]) & (_CTYPE_SWM|_CTYPE_R);
       61 +        x = ((wc < 0 || wc >= _CACHED_RUNES) ? __runetype(rl, wc) :
       62 +            rl->__runetype[wc]) & (_CTYPE_SWM|_CTYPE_R);
  60   63  
  61   64          if ((x & _CTYPE_SWM) != 0)
  62   65                  return ((x & _CTYPE_SWM) >> _CTYPE_SWS);
  63   66          return ((x & _CTYPE_R) != 0 ? 1 : -1);
  64   67  }
  65   68  
       69 +int
       70 +wcwidth(wchar_t wc)
       71 +{
       72 +        return (wcwidth_l(wc, uselocale(NULL)));
       73 +}
       74 +
  66   75  #pragma weak _scrwidth = scrwidth
  67   76  
  68   77  /*
  69   78   * This is a Solaris extension.  It never returns a negative width, even for
  70   79   * non-printable characters.  It is used internally by the printf
  71   80   * implementation for %ws.
  72   81   */
  73   82  int
  74   83  scrwidth(wchar_t wc)
  75   84  {
  76   85          int     v = wcwidth(wc);
  77   86          return (v > 0 ? v : 0);
  78   87  }
    

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