/* hard-locale.c -- Determine whether a locale is hard. Copyright (C) 1997, 1998, 1999, 2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #if HAVE_CONFIG_H # include <config.h> #endif #if HAVE_LOCALE_H # include <locale.h> #endif #if HAVE_STDLIB_H # include <stdlib.h> #endif #if HAVE_STRING_H # include <string.h> #endif #include "hard-locale.h" /* Return nonzero if the current CATEGORY locale is hard, i.e. if you can't get away with assuming traditional C or POSIX behavior. */ int hard_locale (int category) { #if ! HAVE_SETLOCALE return 0; #else int hard = 1; char const *p = setlocale (category, 0); if (p) { # if defined __GLIBC__ && 2 <= __GLIBC__ if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0) hard = 0; # else char *locale = malloc (strlen (p) + 1); if (locale) { 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 }