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root |
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#!/opt/bin/perl |
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# use jcf-dump GroupChat.java and extract the longest constant string sans '"' |
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use Encode; |
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use Data::Dumper; |
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local $/; |
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binmode STDIN; |
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binmode STDOUT, ":utf-8"; |
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my $dictionary = <>; |
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$dictionary =~ s% |
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\\ |
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(?: \\ |
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| 0([0-9a-f]{2}) |
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| u([0-9a-f]{4}) |
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| ([rnt\x27\x22]) |
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| (.) |
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) |
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% |
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if ($1 || $2) { |
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chr hex "$1$2"; |
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} elsif ($3 eq "r") { "\015" |
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} elsif ($3 eq "n") { "\012" |
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} elsif ($3 eq "t") { "\011" |
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} elsif ($3 eq "'") { "'" |
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} elsif ($3 eq '"') { '"' |
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} elsif ($4) { |
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die "<<<$4>>>\n"; |
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} else { |
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"\\"; |
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} |
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%sgex; |
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my ($idx, $bit) = (0, -32); |
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while (length $dictionary) { |
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my $prefix = ord substr $dictionary, 0, 1, ""; |
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$prefix = unpack "n", Encode::encode "iso-8859-1", substr $dictionary, 0, 2, "" if $prefix == 255; |
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my ($len, $width) = (int $prefix / 21, $prefix % 21); |
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my $string = substr $dictionary, 0, $len + 1, ""; |
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# carry |
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while ($idx & 1) { |
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$idx >>= 1; |
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$bit--; |
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} |
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$idx |= 1; |
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# widen |
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while ($bit < $width) { |
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$idx &= 0x7fffffff; |
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$idx <<= 1; |
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$bit++; |
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} |
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my $code = reverse unpack "b$width", pack "V", $idx; |
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#$string =~ s/([^\x20-\x7e])/sprintf "\\x{%x}", ord $1/ge; |
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$code{$code} = $string; |
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} |
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print Data::Dumper->new([\%code])->Terse(1)->Useqq(1)->Quotekeys(1)->Sortkeys(1)->Dump; |
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