.\" Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org> .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD: src/lib/libc/locale/nl_langinfo.3,v 1.5 2003/09/08 19:57:14 ru Exp $ .\" .Dd May 3, 2001 .Dt NL_LANGINFO 3 .Os .Sh NAME .Nm nl_langinfo , .Nm nl_langinfo_l .Nd language information .Sh LIBRARY .Lb libc .Sh SYNOPSIS .In langinfo.h .Ft char * .Fo nl_langinfo .Fa "nl_item item" .Fc .In langinfo.h .In xlocale.h .Ft char * .Fo nl_langinfo_l .Fa "nl_item item" .Fa "locale_t loc" .Fc .Sh DESCRIPTION The .Fn nl_langinfo function returns a pointer to a string containing information relevant to the particular language or cultural area defined in the program's locale. The manifest constant names and values of .Fa item are defined in .In langinfo.h . .Pp Calls to .Fn setlocale with a category corresponding to the category of .Fa item , or to the category .Dv LC_ALL , may overwrite the buffer pointed to by the return value. .Sh EXAMPLES For example: .Pp .Dl nl_langinfo(ABDAY_1) .Pp would return a pointer to the string .Qq Li Dom if the identified language was Portuguese, and .Qq Li Sun if the identified language was English. .Pp While the .Fn nl_langinfo function uses the current locale, the .Fn nl_langinfo_l function may be passed a locale directly. See .Xr xlocale 3 for more information. .Sh RETURN VALUES In a locale where langinfo data is not defined, .Fn nl_langinfo returns a pointer to the corresponding string in the .Tn POSIX locale. In all locales, .Fn nl_langinfo returns a pointer to an empty string if .Fa item contains an invalid setting. .Sh SEE ALSO .Xr setlocale 3 , .Xr xlocale 3 .Sh STANDARDS The .Fn nl_langinfo function conforms to .St -susv2 . .Sh HISTORY The .Fn nl_langinfo function first appeared in .Fx 4.6 .