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/* Message translation utilities.

   Copyright (C) 2001, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License as published by the Free

Software Foundation; either version 3, or (at your option) any later

version.

GCC 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 General Public License

for more details.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include "intl.h"

#ifdef HAVE_LANGINFO_CODESET

#include <langinfo.h>

#endif

/* Opening quotation mark for diagnostics.  */

const char *open_quote = "'";

/* Closing quotation mark for diagnostics.  */

const char *close_quote = "'";

#ifdef ENABLE_NLS

/* Initialize the translation library for GCC.  This performs the

   appropriate sequence of calls - setlocale, bindtextdomain,

   textdomain.  LC_CTYPE determines the character set used by the

   terminal, so it has be set to output messages correctly.  */

void

gcc_init_libintl (void)

{

#ifdef HAVE_LC_MESSAGES

  setlocale (LC_CTYPE, "");

  setlocale (LC_MESSAGES, "");

#else

  setlocale (LC_ALL, "");

#endif

  (void) bindtextdomain ("gcc", LOCALEDIR);

  (void) textdomain ("gcc");

  /* Opening quotation mark.  */

  open_quote = _("`");

  /* Closing quotation mark.  */

  close_quote = _("'");

  if (!strcmp (open_quote, "`") && !strcmp (close_quote, "'"))

    {

#if defined HAVE_LANGINFO_CODESET

      const char *encoding;

#endif

      /* Untranslated quotes that it may be possible to replace with

         U+2018 and U+2019; but otherwise use "'" instead of "`" as

         opening quote.  */

      open_quote = "'";

#if defined HAVE_LANGINFO_CODESET

      encoding = nl_langinfo (CODESET);

      if (encoding != NULL

          && (!strcasecmp (encoding, "utf-8")

              || !strcasecmp (encoding, "utf8")))

        {

          open_quote = "\xe2\x80\x98";

          close_quote = "\xe2\x80\x99";

        }

#endif

    }

}

#if defined HAVE_WCHAR_H && defined HAVE_WORKING_MBSTOWCS && defined HAVE_WCSWIDTH

#include <wchar.h>

/* Returns the width in columns of MSGSTR, which came from gettext.

   This is for indenting subsequent output.  */

size_t

gcc_gettext_width (const char *msgstr)

{

  size_t nwcs = mbstowcs (0, msgstr, 0);

  wchar_t *wmsgstr = alloca ((nwcs + 1) * sizeof (wchar_t));

  mbstowcs (wmsgstr, msgstr, nwcs + 1);

  return wcswidth (wmsgstr, nwcs);

}

#else  /* no wcswidth */

/* We don't have any way of knowing how wide the string is.  Guess

   the length of the string.  */

size_t

gcc_gettext_width (const char *msgstr)

{

  return strlen (msgstr);

}

#endif

#endif /* ENABLE_NLS */