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/* hard-locale.h -- Same as hard-locale.c.
*
* For gawk, put this in a header file, provides source code
* compatibility with GNU grep for dfa.c, so that dfa.c need
* not be continually modified by hand.
*/
/* hard-locale.c -- Determine whether a locale is hard.
Copyright 1997, 1998, 1999, 2010 Free Software Foundation, Inc.
This program 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 2, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Return nonzero if the current CATEGORY locale is hard, i.e. if you
can't get away with assuming traditional C or POSIX behavior. */
static int
hard_locale (int category)
{
#if ! (defined ENABLE_NLS && HAVE_SETLOCALE)
return 0;
#else
int hard = 1;
char const *p = setlocale (category, 0);
if (p)
{
# if defined __GLIBC__ && __GLIBC__ >= 2
if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
hard = 0;
# else
char *locale = (char *) xmalloc (strlen (p) + 1);
strcpy (locale, p);
/* Temporarily set the locale to the "C" and "POSIX" locales to
find their names, so that we can determine whether one or the
other is the caller's locale. */
if (((p = setlocale (category, "C")) && strcmp (p, locale) == 0)
|| ((p = setlocale (category, "POSIX")) && strcmp (p, locale) == 0))
hard = 0;
/* Restore the caller's locale. */
setlocale (category, locale);
free(locale);
# endif
}
return hard;
#endif
}
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