if [ ! "$_TIMEZONE_ISO3166_SUBR" ]; then _TIMEZONE_ISO3166_SUBR=1
#
# Copyright (c) 2011-2012 Devin Teske
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
############################################################ INCLUDES

BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." timezone/iso3166.subr

BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="090.timezone"
f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr

############################################################ CONFIGURATION

#
# Standard pathnames
#
_PATH_ISO3166="/usr/share/misc/iso3166"

#
# Export required i18n messages for awk(1) ENVIRON visibility
#
export msg_country_code_multiply_defined
export msg_invalid_code
export msg_invalid_format

############################################################ FUNCTIONS

# f_read_iso3166_table
#
# Read the ISO 3166 country code database in _PATH_ISO3166:
# 	/usr/share/misc/iso3166 on FreeBSD
# 	/usr/share/zoneinfo/iso3166.tab on Linux, Mac OS X, and Cygwin
#
# The format of this file on FreeBSD is:
# 	two	three	number	name
#
# The format of this file on Linux, Mac OS X, and Cygwin is:
# 	two	name
#
# With each of the following elements (described below) being separated by a
# single tab character:
#
# 	two      ISO 3166 2-character country code
# 	three    ISO 3166 3-character country code (if provided)
# 	number   ISO 3166 numeric country code (if provided)
# 	name     Human-readable country name (may contain spaces)
#
# Variables created by this function:
#
# 	COUNTRIES
# 		A space-separated list of 2-character country codes.
# 	country_CODE_name
# 		The country `name' (as described above).
#
# where CODE is the 2-character country code.
#
# This function is a two-parter. Below is the awk(1) portion of the function,
# afterward is the sh(1) function which utilizes the below awk script.
#
f_read_iso3166_table_awk='
# Variables that should be defined on the invocation line:
# 	-v progname="progname"
#
BEGIN {
	lineno = 0
	failed = 0
}
function die(fmt, argc, argv)
{
	printf "f_die 1 \"%%s: %s\" \"%s\"", fmt, progname
	for (n = 1; n <= argc; n++)
		printf " \"%s\"", argv[n]
	print ""
	failed++
	exit 1
}
function add_country(tlc, name)
{
	if (country_name[tlc])
	{
		argv[1] = FILENAME
		argv[2] = lineno
		argv[3] = tlc
		argv[4] = name
		die(ENVIRON["msg_country_code_multiply_defined"], 4, argv)
	}

	country_name[tlc] = name
}
function print_country_name(tlc)
{
	name = country_name[tlc]
	gsub(/"/, "\\\"", name)
	printf "country_%s_name=\"%s\"\n", tlc, name
	printf "export country_%s_name\n", tlc
}
/^#/ {
	lineno++
	next
}
!/^#/ {
	lineno++

	# Split the current record (on TAB) into an array
	split($0, line, /\t/)

	# Get the ISO3166-1 (Alpha 1) 2-letter country code
	tlc = line[1]

	#
	# Validate the two-character country code
	#
	if (length(tlc) != 2)
	{
		argv[1] = FILENAME
		argv[2] = lineno
		die(ENVIRON["msg_invalid_format"], 2, argv)
	}
	if (!match(tlc, /^[A-Z][A-Z]$/))
	{
		argv[1] = FILENAME
		argv[2] = lineno
		argv[3] = tlc
		die(ENVIRON["msg_invalid_code"], 3, argv)
	}

	#
	# Calculate the substr start-position of the name
	#
	name_start = 0
	n = 4
	if (FILENAME ~ /\.tab$/)
		n = 2
	while (--n)
	{
		#
		# Validate field-length of 2nd/3rd columns while we are here
		#
		if (n > 1  && length(line[n]) != 3)
		{
			argv[1] = FILENAME
			argv[2] = lineno
			die(ENVIRON["msg_invalid_format"], 2, argv)
		}

		name_start += length(line[n]) + 1
	}

	# Get the name field
	name = substr($0, name_start + 1)

	add_country(tlc, name)
}
END {
	list = ""
	for (tlc in country_name)
	{
		list = list (length(list) > 0 ? " " : "") tlc
		print_country_name(tlc)
	}
	printf "COUNTRIES=\"%s\"\n", list
	print "export COUNTRIES"
}
'
f_read_iso3166_table()
{
	eval $( awk -v progname="$pgm"          \
	            "$f_read_iso3166_table_awk" \
	            "$_PATH_ISO3166"            )
}

############################################################ MAIN

f_dprintf "%s: Successfully loaded." timezone/iso3166.subr

fi # ! $_TIMEZONE_ISO3166_SUBR