#!/usr/bin/perl # zoneinfo2lua.pl - Make Lua module from /usr/share/zoneinfo # Execute from within /usr/share/zoneinfo # $Id$ use strict; my %TZ; local $/ = "\012"; open( ZTAB, "< ./zone.tab" ) || die "Unable to open zone.tab: $!"; while( ! eof ZTAB ) { chomp( my $line = readline ZTAB ); next if $line =~ /^#/ || $line =~ /^\s+$/; my ( undef, undef, $zone, @comment ) = split /\s+/, $line; printf STDERR "%-40s", $zone; if( open ZONE, "< ./$zone" ) { seek ZONE, -2, 2; while( tell(ZONE) > 0 ) { read ZONE, my $char, 1; ( $char eq "\012" ) ? last : seek ZONE, -2, 1; } chomp( my $tz = readline ZONE ); print STDERR ( $tz || "(no tzinfo found)" ), "\n"; close ZONE; if( $tz ) { $zone =~ s/_/ /g; $TZ{$zone} = $tz; } } else { print STDERR "Unable to open $zone: $!\n"; } } close ZTAB; print <<HEAD; --[[ LuCI - Autogenerated Zoneinfo Module Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 ]]-- module "luci.sys.zoneinfo" TZ = { HEAD foreach my $zone ( sort keys %TZ ) { printf "\t{ '%s', '%s' },\n", $zone, $TZ{$zone} } print <<HEAD; } OFFSET = { HEAD my %seen; foreach my $tz ( sort keys %TZ ) { my $zone = $TZ{$tz}; if( $zone =~ /^ ([A-Z]+) (?: ( -? \d+ (?: : \d+ )? ) (?: ([A-Z]+) ( -? \d+ (?: : \d+ )? )? )? )? \b /xo ) { my ( $offset, $s, $h, $m ) = ( 0, 1, 0, 0 ); my ( $std, $soffset, $dst, $doffset ) = ( $1, $2, $3, $4 ); next if $seen{$std}; # and ( !$dst or $seen{$dst} ); if ( $soffset ) { ( $s, $h, $m ) = $soffset =~ /^(-)?(\d+)(?::(\d+))?$/; $s = $s ? 1 : -1; $h ||= 0; $m ||= 0; $offset = $s * $h * 60 * 60; $offset += $s * $m * 60; printf("\t%-5s = %6d,\t-- %s\n", lc($std), $offset, $std); $seen{$std} = 1; if( $dst ) { if( $doffset ) { ( $s, $h, $m ) = $doffset =~ /^(-)?(\d+)(?::(\d+))?$/; $s = $s ? 1 : -1; $h ||= 0; $m ||= 0; $offset = $s * $h * 60 * 60; $offset += $s * $m * 60; } else { $offset += 60 * 60; } printf("\t%-5s = %6d,\t-- %s\n", lc($dst), $offset, $dst); $seen{$dst} = 1; } } else { printf("\t%-5s = %6d,\t-- %s\n", lc($std), $offset, $std); $seen{$std} = 1; } } } print "}\n";