Here comes a substitute for the nl_langinfo() function. At the moment, it
returns non-localized (English) strings. Proper localization can be added
at a later time, together with cross-platform support for locale_t. For now,
the purpose is only to be able to use this function in the 'localename' module.
2009-12-11 Bruno Haible <br...@clisp.org>
New module 'nl_langinfo'.
* lib/nl_langinfo.c: New file.
* m4/nl_langinfo.m4: New file.
* modules/nl_langinfo: New file.
* doc/posix-functions/nl_langinfo.texi: Mention the new module.
============================== lib/nl_langinfo.c ==============================
/* nl_langinfo() replacement: query locale dependent information.
Copyright (C) 2007-2009 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <langinfo.h>
#if REPLACE_NL_LANGINFO
/* Override nl_langinfo with support for added nl_item values. */
# include <locale.h>
# include <string.h>
# undef nl_langinfo
char *
rpl_nl_langinfo (nl_item item)
{
switch (item)
{
# if GNULIB_defined_CODESET
case CODESET:
{
const char *locale;
static char buf[2 + 10 + 1];
locale = setlocale (LC_CTYPE, NULL);
if (locale != NULL && locale[0] != '\0')
{
/* If the locale name contains an encoding after the dot, return
it. */
const char *dot = strchr (locale, '.');
if (dot != NULL)
{
const char *modifier;
dot++;
/* Look for the possible @... trailer and remove it, if any. */
modifier = strchr (dot, '@');
if (modifier == NULL)
return dot;
if (modifier - dot < sizeof (buf))
{
memcpy (buf, dot, modifier - dot);
buf [modifier - dot] = '\0';
return buf;
}
}
}
return "";
}
# endif
# if GNULIB_defined_ERA
case ERA:
/* The format is not standardized. In glibc it is a sequence of strings
of the form "direction:offset:start_date:end_date:era_name:era_format"
with an empty string at the end. */
return "";
case ERA_D_FMT:
/* The %Ex conversion in strftime behaves like %x if the locale does not
have an alternative time format. */
item = D_FMT;
break;
case ERA_D_T_FMT:
/* The %Ec conversion in strftime behaves like %c if the locale does not
have an alternative time format. */
item = D_T_FMT;
break;
case ERA_T_FMT:
/* The %EX conversion in strftime behaves like %X if the locale does not
have an alternative time format. */
item = T_FMT;
break;
case ALT_DIGITS:
/* The format is not standardized. In glibc it is a sequence of 10
strings, appended in memory. */
return "\0\0\0\0\0\0\0\0\0\0";
# endif
default:
break;
}
return nl_langinfo (item);
}
#else
/* Provide nl_langinfo from scratch. */
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Native Windows platforms. */
# define WIN32_LEAN_AND_MEAN /* avoid including junk */
# include <windows.h>
# include <stdio.h>
# else
/* An old Unix platform without locales, such as Linux libc5 or BeOS. */
# endif
# include <locale.h>
char *
nl_langinfo (nl_item item)
{
switch (item)
{
/* nl_langinfo items of the LC_CTYPE category */
case CODESET:
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
{
static char buf[2 + 10 + 1];
/* Woe32 has a function returning the locale's codepage as a number. */
sprintf (buf, "CP%u", GetACP ());
return buf;
}
# elif defined __BEOS__
return "UTF-8";
# else
return "ISO-8859-1";
# endif
/* nl_langinfo items of the LC_NUMERIC category */
case RADIXCHAR:
return localeconv () ->decimal_point;
case THOUSEP:
return localeconv () ->thousands_sep;
/* nl_langinfo items of the LC_TIME category.
TODO: Really use the locale. */
case D_T_FMT:
case ERA_D_T_FMT:
return "%a %b %e %H:%M:%S %Y";
case D_FMT:
case ERA_D_FMT:
return "%m/%d/%y";
case T_FMT:
case ERA_T_FMT:
return "%H:%M:%S";
case T_FMT_AMPM:
return "%I:%M:%S %p";
case AM_STR:
return "AM";
case PM_STR:
return "PM";
case DAY_1:
return "Sunday";
case DAY_2:
return "Monday";
case DAY_3:
return "Tuesday";
case DAY_4:
return "Wednesday";
case DAY_5:
return "Thursday";
case DAY_6:
return "Friday";
case DAY_7:
return "Saturday";
case ABDAY_1:
return "Sun";
case ABDAY_2:
return "Mon";
case ABDAY_3:
return "Tue";
case ABDAY_4:
return "Wed";
case ABDAY_5:
return "Thu";
case ABDAY_6:
return "Fri";
case ABDAY_7:
return "Sat";
case MON_1:
return "January";
case MON_2:
return "February";
case MON_3:
return "March";
case MON_4:
return "April";
case MON_5:
return "May";
case MON_6:
return "June";
case MON_7:
return "July";
case MON_8:
return "August";
case MON_9:
return "September";
case MON_10:
return "October";
case MON_11:
return "November";
case MON_12:
return "December";
case ABMON_1:
return "Jan";
case ABMON_2:
return "Feb";
case ABMON_3:
return "Mar";
case ABMON_4:
return "Apr";
case ABMON_5:
return "May";
case ABMON_6:
return "Jun";
case ABMON_7:
return "Jul";
case ABMON_8:
return "Aug";
case ABMON_9:
return "Sep";
case ABMON_10:
return "Oct";
case ABMON_11:
return "Nov";
case ABMON_12:
return "Dec";
case ERA:
return "";
case ALT_DIGITS:
return "\0\0\0\0\0\0\0\0\0\0";
/* nl_langinfo items of the LC_MONETARY category
TODO: Really use the locale. */
case CRNCYSTR:
return "-";
/* nl_langinfo items of the LC_MESSAGES category
TODO: Really use the locale. */
case YESEXPR:
return "^[yY]";
case NOEXPR:
return "^[nN]";
default:
return "";
}
}
#endif
============================== m4/nl_langinfo.m4 ==============================
# nl_langinfo.m4 serial 1
dnl Copyright (C) 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_NL_LANGINFO],
[
AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
AC_REQUIRE([gl_LANGINFO_H])
if test $HAVE_LANGINFO_H = 1; then
AC_CHECK_FUNCS_ONCE([nl_langinfo])
else
ac_cv_func_nl_langinfo=no
fi
if test $ac_cv_func_nl_langinfo = yes; then
if test $HAVE_LANGINFO_CODESET = 1 && test $HAVE_LANGINFO_ERA = 1; then
:
else
REPLACE_NL_LANGINFO=1
AC_DEFINE([REPLACE_NL_LANGINFO], [1],
[Define if nl_langinfo exists but is overridden by gnulib.])
AC_LIBOBJ([nl_langinfo])
fi
else
HAVE_NL_LANGINFO=0
AC_LIBOBJ([nl_langinfo])
fi
])
============================= modules/nl_langinfo =============================
Description:
nl_langinfo() function: query locale dependent information.
Files:
lib/nl_langinfo.c
m4/nl_langinfo.m4
Depends-on:
langinfo
configure.ac:
gl_FUNC_NL_LANGINFO
gl_LANGINFO_MODULE_INDICATOR([nl_langinfo])
Makefile.am:
Include:
<langinfo.h>
License:
LGPL
Maintainer:
Bruno Haible
===============================================================================
--- doc/posix-functions/nl_langinfo.texi.orig 2009-12-11 20:02:36.000000000
+0100
+++ doc/posix-functions/nl_langinfo.texi 2009-12-11 18:00:36.000000000
+0100
@@ -4,20 +4,24 @@
POSIX specification:
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/nl_langinfo.html}
-Gnulib module: ---
+Gnulib module: nl_langinfo
Portability problems fixed by Gnulib:
@itemize
-...@end itemize
-
-Portability problems not fixed by Gnulib:
-...@itemize
@item
This function is missing on some platforms:
mingw, BeOS.
@item
-Some older versions of glibc had @code{nl_langinfo} but not the @code{CODESET}
-macro.
+The constant @code{CODESET} is not supported on some platforms:
+glibc 2.0.6, OpenBSD 3.8.
+...@item
+The constants @code{ERA}, @code{ERA_D_FMT}, @code{ERA_D_T_FMT},
+...@code{era_t_fmt}, @code{ALT_DIGITS} are not supported on some platforms:
+OpenBSD 3.8.
+...@end itemize
+
+Portability problems not fixed by Gnulib:
+...@itemize
@item
On Cygwin 1.5.x, which doesn't have locales, @code{nl_langinfo(CODESET)} always
returns @code{"US-ASCII"}.
