1.\" Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd May 3, 2001 28.Dt NL_LANGINFO 3 29.Os 30.Sh NAME 31.Nm nl_langinfo 32.Nd language information 33.Sh LIBRARY 34.Lb libc 35.Sh SYNOPSIS 36.In langinfo.h 37.Ft char * 38.Fn nl_langinfo "nl_item item" 39.Sh DESCRIPTION 40The 41.Fn nl_langinfo 42function returns a pointer to a string containing information relevant to 43the particular language or cultural area defined in the program's locale. 44The manifest constant names and values of 45.Fa item 46are defined in 47.In langinfo.h . 48.Pp 49Calls to 50.Fn setlocale 51with a category corresponding to the category of 52.Fa item , 53or to the 54category 55.Dv LC_ALL , 56may overwrite the buffer pointed to by the return value. 57.Sh RETURN VALUES 58In a locale where langinfo data is not defined, 59.Fn nl_langinfo 60returns a pointer to the corresponding string in the 61.Tn POSIX 62locale. 63In all locales, 64.Fn nl_langinfo 65returns a pointer to an empty string if 66.Fa item 67contains an invalid setting. 68.Sh EXAMPLES 69For example: 70.Pp 71.Dl nl_langinfo(ABDAY_1) 72.Pp 73would return a pointer to the string 74.Qq Li Dom 75if the identified language was 76Portuguese, and 77.Qq Li Sun 78if the identified language was English. 79.Sh SEE ALSO 80.Xr setlocale 3 81.Sh STANDARDS 82The 83.Fn nl_langinfo 84function conforms to 85.St -susv2 . 86.Sh HISTORY 87The 88.Fn nl_langinfo 89function first appeared in 90.Fx 4.6 . 91