#!/usr/bin/perl

use Unicode::String ;

while (<>) {
        chomp ;
        push( @result, sprintf( "%s\n", imap_utf7_encode( $_ ) ) ) ;
}

print @result ;

# http://cpansearch.perl.org/src/FABPOT/Unicode-IMAPUtf7-2.01/lib/Unicode/IMAPUtf7.pm

sub imap_utf7_encode {
        my ( $s ) = @_ ;

	$s = Unicode::String::utf8( $s )->utf7 ;
	
	$s =~ s/\+([^\/&\-]*)\/([^\/\-&]*)\-/\+$1,$2\-/g ;
	$s =~ s/&/&\-/g ;
	$s =~ s/\+([^+\-]+)?\-/&$1\-/g ;
        return( $s ) ;
}