freebsd-dev/lib/libc/nls/catopen.3
1998-04-30 16:11:50 +00:00

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.\" $Id: catopen.3,v 1.5 1998/04/30 11:06:12 ache Exp $
.\"
.\" Copyright (c) 1994 Winning Strategies, Inc.
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.Dd May 29, 1994
.Dt CATOPEN 3
.Os
.Sh NAME
.Nm catopen
.Nd open message catalog
.Sh SYNOPSIS
.Fd #include <nl_types.h>
.Ft nl_catd
.Fn catopen "const char *name" "int oflag"
.Sh DESCRIPTION
The
.Fn catopen
function opens the message catalog specified by
.Fa name
and returns a message catalog descriptor.
If
.Fa name
contains a
.Sq /
then
.Fa name
specifies the full pathname for the message catalog, otherwise the value
of the environment variable
.Ev NLSPATH
is used with
.Fa name
substituted for %N.
.Pp
If the
.Fa oflag
argument is set to the
.Dv NL_CAT_LOCALE
constant,
.Dv LC_MESSAGES
locale category used to open the message catalog; using
.Dv NL_CAT_LOCALE
conforms to the
.St -xpg4
standard. You can specify 0 for compatibility with
.St -xpg3 ;
when
.Fa oflag
is set to 0, the
.Ev LANG
environment variable
determines the message catalog locale.
.Sh RETURN VALUE
Upon successful completion,
.Fn catopen
returns a message catalog descriptor.
Otherwise, (nl_catd) -1 is returned and
.Va errno
is set to indicate the error.
.Sh ERRORS
.Bl -tag -width Er
.It Bq Er ENOMEM
Insufficient memory is available.
.El
.Sh SEE ALSO
.Xr catclose 3 ,
.Xr catgets 3 ,
.Xr setlocale 3
.Sh STANDARDS
The
.Fn catopen
function conforms to
.St -xpg4 .