Name
nl_langinfo — query language and locale information
Synopsis
#include <langinfo.h>
char
*nl_langinfo( |
nl_item item); |
DESCRIPTION
The nl_langinfo() function
provides access to locale information in a more flexible way
than localeconv(3) does.
Individual and additional elements of the locale categories
can be queried.
Examples for the locale elements that can be specified in
item using the
constants defined in <langinfo.h>
are:
CODESET(LC_CTYPE)-
Return a string with the name of the character encoding used in the selected locale, such as "UTF-8", "ISO-8859-1", or "ANSI_X3.4-1968" (better known as US-ASCII). This is the same string that you get with "locale charmap". For a list of character encoding names, try "locale −m", cf. locale(1).
D_T_FMT(LC_TIME)-
Return a string that can be used as a format string for strftime(3) to represent time and date in a locale-specific way.
D_FMT(LC_TIME)-
Return a string that can be used as a format string for strftime(3) to represent a date in a locale-specific way.
T_FMT(LC_TIME)-
Return a string that can be used as a format string for strftime(3) to represent a time in a locale-specific way.
DAY_{1–7} (LC_TIME)-
Return name of the
n-th day of the week.![[Warning]](../stylesheet/warning.png)
Warning This follows the US convention DAY_1 = Sunday, not the international convention (ISO 8601) that Monday is the first day of the week.
ABDAY_{1–7} (LC_TIME)-
Return abbreviated name of the
n-th day of the week. MON_{1–12} (LC_TIME)-
Return name of the
n-th month. ABMON_{1–12} (LC_TIME)-
Return abbreviated name of the
n-th month. RADIXCHAR(LC_NUMERIC)-
Return radix character (decimal dot, decimal comma, etc.).
THOUSEP(LC_NUMERIC)-
Return separator character for thousands (groups of three digits).
YESEXPR(LC_MESSAGES)-
Return a regular expression that can be used with the regex(3) function to recognize a positive response to a yes/no question.
NOEXPR(LC_MESSAGES)-
Return a regular expression that can be used with the regex(3) function to recognize a negative response to a yes/no question.
CRNCYSTR(LC_MONETARY)-
Return the currency symbol, preceded by "−" if the symbol should appear before the value, "+" if the symbol should appear after the value, or "." if the symbol should replace the radix character.
The above list covers just some examples of items that can be requested. For a more detailed list, consult The GNU C Library Reference Manual.
RETURN VALUE
If no locale has been selected by setlocale(3) for the
appropriate category, nl_langinfo() returns a pointer to the
corresponding string in the "C" locale.
If item is not
valid, a pointer to an empty string is returned.
This pointer may point to static data that may be
overwritten on the next call to nl_langinfo() or setlocale(3).
EXAMPLE
The following program sets the character type locale according to the environment and queries the terminal character set.
#include <langinfo.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
int
main(int argc, char *argv[])
{
setlocale(LC_CTYPE,"");
printf("%s\n",nl_langinfo(CODESET));
exit(EXIT_SUCCESS);
}
SEE ALSO
locale(1), localeconv(3), setlocale(3), charsets(7), locale(7)
The GNU C Library Reference Manual
COLOPHON
This page is part of release 3.52 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man−pages/.
|
Copyright (c) 2001 Markus Kuhn <mkuhnacm.org> %%%LICENSE_START(GPLv2+_DOC_ONEPARA) This is free documentation; 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 of the License, or (at your option) any later version. %%%LICENSE_END References consulted: GNU glibc-2 manual OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html Corrected prototype, 2002-10-18, aeb |