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/**
* \file util.c
* A set of common utility functions found
* in all samples.
*
* Copyright (C) 2008 Linus Walleij <triad@df.lth.se>
*
* This library 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 2 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "util.h"
#ifdef HAVE_LANGINFO_H
#include <langinfo.h>
#endif
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
void checklang(void)
{
const char *langsuff = NULL;
const char *lang = getenv("LANG");
#ifdef HAVE_LOCALE_H
// Set the locale in accordance with environment
setlocale(LC_ALL, "");
#endif
#ifdef HAVE_LANGINFO_H
langsuff = nl_langinfo(CODESET);
#else
/*
* Check environment variables $LANG and $LC_CTYPE
* to see if we want to support UTF-8 unicode
*/
if (lang != NULL) {
const char *sep = strrchr(lang, '.');
if (sep != NULL) {
langsuff = sep + 1;
} else {
langsuff = lang;
}
}
#endif
if (langsuff == NULL) {
printf("Could not determine language suffix for your system. Please check your setup!\n");
} else if (strcasecmp(langsuff, "UTF-8") && strcasecmp(langsuff, "UTF8")) {
printf("Your system does not appear to have UTF-8 enabled ($LANG=\"%s\")\n", lang);
printf("If you want to have support for diacritics and Unicode characters,\n");
printf("please switch your locale to an UTF-8 locale, e.g. \"en_US.UTF-8\".\n");
}
}
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