#!/usr/bin/env perl
use 5.012;
use warnings;

my %cc;  # map of country code to info array
%cc = (
	# exceptional reservations
	ac => ["Ascension Island", "c-oc Xr", undef, 'sh'],
	cp => ["Clipperton Island", "c-na Xr"],
	dg => ["Diego Garcia", "c-as Xr", undef, 'io'],
	ea => ["Ceuta and Melilla", "c-af Xr"],
	eu => ["European Union", "c-eu Xr"],
	fx => ["Metropolitan France", "c-eu Xr", undef, 'fr'],
	ic => ["Canary Islands", "c-af Xr"],
	su => ["former USSR", "c-eu Xr"],
	ta => ["Tristan da Cunha", "c-oc Xr", undef, 'sh'],
	uk => ["(United Kingdom)", "c-eu Xr", undef, 'gb'],

	# indeterminate reservations
	dy => ["(Benin)", "c-af Xr", undef, 'bj'],
	ew => ["(Estonia)", "c-eu Xr", undef, 'ee'],
	fl => ["(Liechtenstein)", "c-eu Xr", undef, 'li'],
	ja => ["(Jamaica)", "c-na Xr", undef, 'jm'],
	lf => ["Libya Fezzan", "c-af Xr", "Fezzan", 'ly'],
	pi => ["(Philippines)", "c-as Xr", undef, 'ph'],
	ra => ["(Argentina)", "c-sa Xr", undef, 'ar'],
	rb => ["Bolivia/Botswana", "c-xx Xr"],
	rc => ["(RoC)", "c-as Xr", undef, 'tw'],
	rh => ["(Haiti)", "c-na Xr",undef, 'ht'],
	ri => ["(Indonesia)", "c-as Xr", undef, 'id'],
	rl => ["(Lebanon)", "c-as Xr", undef, 'lb'],
	rm => ["(Madagascar)", "c-af Xr", undef, 'mg'],
	rn => ["(Niger)", "c-af Xr",undef, 'ne'],
	rp => ["(Philippines)", "c-as Xr", undef, 'ph'],
	wg => ["(Grenada)", "c-na Xr", undef, 'gd'],
	wl => ["(Saint Lucia)", "c-na Xr", "(Saint Luc.)", 'lc'],
	wv => ["(Saint Vincent)", "c-na Xr", "(Saint Vin.)", 'vc'],
	yv => ["(Venezuela)", "c-sa Xr", undef, 've'],
);

while (<>) {
	/^#/ and next;  # skip comments
	my ($iso, $name, $cont) = (split /\t/)[0, 4, 8];
	my $class = "c-\L$cont";
	$cc{ lc $iso } = [ $name, $class ];
}

$cc{io}->[2] = "Chagos Islands";
$cc{um}->[2] = "U.S. isl.";

for (values %cc) {
	for ($_->[2] //= $_->[0]) {
		s/,.*//;
		s/(?<=.)\(.*\)\s*//;
		s/ republic\b//gi;
		s/ islands?\b//gi;
		s/\bthe //g;
		s/ and / & /g and s/(?<=.)[a-z ]+//g;
		s/\bsaint /st /gi;
		s/South(?:ern)? /S-/g;
		s/North(?:ern)? /N-/g;
		s/New /n./g;
		s/(\S)(\S+)-/$1-/g;  # strip most chars preceding dash
		s/(\S{4}[b-df-hj-np-tv-xz])((?<!Austr)(?!land)\w{2,})/$1./g;  # abbreviate (at consonant)
	}
}

say "# automatically generated by $0";
use Data::Dump 'dd';
$Data::Dump::INDENT = '';
dd \%cc;

__END__

=head1 NAME

mkcountries-geonames - Create Perl include of country info from GeoNames data

=head1 SYNOPSIS

	curl http://download.geonames.org/export/dump/countryInfo.txt |
	tools/mkcountryinfo > countries.inc.pl