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root |
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#!/opt/bin/perl |
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# creates lib/AnyEvent/Util/uts46.pl - better do not run it! |
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use common::sense; |
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use utf8; |
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no warnings 'utf8'; |
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binmode STDOUT, ":utf8"; |
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open my $fh, "GET http://www.unicode.org/Public/idna/5.2.0/IdnaMappingTable.txt |" |
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or die; |
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my $valid; |
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my $imap; # index map \x00 char replacement |
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while (<$fh>) { |
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next unless /^[0-9A-F]/; |
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/^ |
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([0-9A-F]{4,}) (?: \.\.([0-9A-F]{4,}) )? |
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\s*;\s*(\S+) |
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(?: \s*;\s*([0-9A-F ]+?) )? |
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\s* |
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(?: \#.* )? |
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$ |
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/x or die "$_: unparsable"; |
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my ($r1, $r2, $type, $map) = (hex $1, hex $2, $3, $4); |
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my $R1 = chr $r1; |
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my $R2 = chr $r2; |
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$map = join "", map chr hex, split ' ', $map; |
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given ($type) { |
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when ("disallowed") { |
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# nop |
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} |
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when (/mapped|deviation|ignored/) { |
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$map .= "\x01" if $type eq "deviation"; |
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$imap .= "\x00" . chr . $map |
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for $r1 .. $r2 || $r1; |
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} |
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when ("valid") { |
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(vec $valid, $_, 1) = 1 |
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for $r1 .. $r2 || $r1; |
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} |
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default { |
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die "default: $R1,$R2,$type,$map;\n"; |
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} |
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} |
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} |
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open my $fh, ">lib/AnyEvent/Util/uts46data.pl" |
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or die; |
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binmode $fh, ":perlio"; |
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print $fh "# created by gen_uts46data\n"; |
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utf8::encode $imap; |
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0 > index $imap, "\x02" # it's not supposed to be anywhere in there |
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or die "imap contains \\x02"; |
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print $fh "\$uts46_imap = q\x02$imap\x00\x02;\n"; |
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# try to find a valid quoting character - there usually are many legal combos |
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for (1..127) { # stay out of utf-8 range |
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if (0 >= index $valid, chr) { |
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print $fh "\$uts46_valid = q", chr, $valid, chr, ";\n"; |
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goto valid_ok; |
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} |
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} |
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die "unable to found valid quoting character"; |
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valid_ok:; |
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print $fh "1;\n"; |
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close $fh; |
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