# ProteanOS Development Kit
# lib/output.sh
# Functions for printing messages
#
# Copyright (C) 2013  Patrick "P. J." McDermott
#
# This program is free software: 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 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

[ "x${_OUTPUT_SM+set}" = 'xset' ] && return 0
_OUTPUT_SM=1

error()
{
	local status=${1}
	local fmt="${2}"
	shift 2

	printf '%s: Error: ' "${0##*/}" >&2
	printf "${fmt}\n" "${@}" >&2

	exit ${status}
}

warn()
{
	local fmt="${1}"
	shift 1

	printf '%s: Warning: ' "${0##*/}" >&2
	printf "${fmt}\n" "${@}" >&2

	return 0
}

info()
{
	local fmt="${1}"
	shift 1

	printf '%s: ' "${0##*/}" >&2
	printf "${fmt}\n" "${@}" >&2

	return 0
}