.\" #
.\" # Copyright (c) 2014, Juniper Networks, Inc.
.\" # All rights reserved.
.\" # This SOFTWARE is licensed under the LICENSE provided in the
.\" # ../Copyright file. By downloading, installing, copying, or 
.\" # using the SOFTWARE, you agree to be bound by the terms of that
.\" # LICENSE.
.\" # Phil Shafer, July 2014
.\" 
.Dd July, 2014
.Dt LIBXO 3
.Os
.Sh NAME
.Nm xo_emit
.Nd emit formatted output based on format string and arguments
.Sh LIBRARY
.Lb libxo
.Sh SYNOPSIS
.In libxo/xo.h
.Ft xo_handle_t *
.Fn xo_create "unsigned style" "unsigned flags"
.Ft xo_handle_t *
.Fn xo_create_to_file "FILE *fp" "unsigned style" "unsigned flags"
.Ft void
.Fn xo_destroy "xo_handle_t *handle"
.Sh DESCRIPTION
A
.Em libxo
handle can be allocated using the
.Fn xo_create
function.
.Bd -literal -offset indent
  Example:
    xo_handle_t *xop = xo_create(XO_STYLE_JSON, XOF_WARN);
    ....
    xo_emit_h(xop, "testing\n");
.Ed
.Pp
By default,
.Em libxo
writes output to standard output.  A convenience
function is provided for situations when output should be written to
different file.
.Pp
Use the
.Em XOF_CLOSE_FP
flag to trigger a call to
.Em fclose 3
for the FILE pointer when the handle is destroyed.
.Pp
The
.Fn xo_destroy
function releases a handle and any resources it is
using.  Calling
.Fn xo_destroy
with a
.Em NULL
handle will release any
resources associated with the default handle.
.Sh ADDITIONAL DOCUMENTATION
.Pp
Complete documentation can be found on github:
.Bd -literal -offset indent
http://juniper.github.io/libxo/libxo-manual.html
.Ed
.Pp
libxo lives on github as:
.Bd -literal -offset indent
https://github.com/Juniper/libxo
.Ed
.Pp
The latest release of libxo is available at:
.Bd -literal -offset indent
https://github.com/Juniper/libxo/releases
.Ed
.Sh SEE ALSO
.Xr xo_emit 3
and
.Xr xo_set_options 3 .
.Sh HISTORY
The
.Fa libxo
library was added in FreeBSD 11.0.
.Sh AUTHOR
Phil Shafer