6 if (open(GRK, ">$grk")) {
7 # alpha beta gamma in ISO 8859-7
8 print GRK "\xe1\xe2\xe3";
14 open(my $i,'<:encoding(iso-8859-7)',$grk);
16 open(my $o,'>:utf8',$utf);
18 print $o readline($i);
24 if (open(UTF, "<$utf")) {
25 # alpha beta gamma in UTF-8 Unicode (0x3b1 0x3b2 0x3b3)
26 print "not " unless <UTF> eq "\xce\xb1\xce\xb2\xce\xb3";
33 open(my $i,'<:utf8',$utf);
35 open(my $o,'>:encoding(iso-8859-7)',$grk);
37 print $o readline($i);
43 if (open(GRK, "<$grk")) {
44 print "not " unless <GRK> eq "\xe1\xe2\xe3";