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# opkbuild
# lib/locale
# Locale functions.
#
# Copyright (C) 2012 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/>.

[ -n "${_OB_LOCALE_SM}" ] && return 0
_OB_LOCALE_SM='true'

. '@@LIBOPKBUILD@@/output.sm'

_OB_DEFAULT_LOCALE='en_US'

ob_add_text_domain()
{
	_obatd_domain=

	if [ ${#} -eq 1 ]; then
		_obatd_domain="${1}"
	else
		unset _obatd_domain
		return 125
	fi

	# Make sure LC_MESSAGES is set.
	if [ -z "${LC_MESSAGES}" ]; then
		if [ -n "${LC_ALL}" ]; then
			LC_MESSAGES="${LC_ALL}"
		elif [ -n "${LANG}" ]; then
			LC_MESSAGES="${LANG}"
		else
			LC_MESSAGES="${_OB_DEFAULT_LOCALE}"
		fi
	fi

	# TODO: Exit early if domain's messages have already been loaded.

	# Try to load the messages.
	if ! _ob_try_load_messages "${LC_MESSAGES%.*}" "${obsl_domain}"; then
		if ! _ob_try_load_messages "${LC_MESSAGES%_*}" "${_obatd_domain}"; then
			if ! _ob_try_load_messages "${_OB_DEFAULT_LOCALE}" \
					"${_obatd_domain}"; then
				ob_warn 'Cannot load messages in "%s" domain.' \
					"${_obatd_domain}"
				unset _obatd_domain
				return 1
			fi
		fi
	fi

	unset _obatd_domain
	return 0
}

_ob_try_load_messages()
{
	_obtlm_locale="${1}"
	_obtlm_domain="${2}"
	_obtlm_ms="@@LOCALEDIR@@/${_obtlm_locale}/LC_MESSAGES/${_obtlm_domain}.ms"

	if [ -f "${_obtlm_ms}" ]; then
		. "${_obtlm_ms}"
	else
		unset _obtlm_locale _obtlm_domain _obtlm_ms
		return 1
	fi

	unset _obtlm_locale _obtlm_domain _obtlm_ms
	return 0
}