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#!/usr/bin/perl
#
use strict;
use warnings;
use XML::LibXML;
sub usage {
"Usage: $0 draft-ietf-httpbis-header-compression.xml\n";
}
my $file = $ARGV[0] or die usage;
die usage unless -f $file;
open my $fh, '<', $file or die $!;
my $doc = XML::LibXML->load_xml( IO => $fh );
my $stattable =
XML::LibXML::XPathExpression->new(
'//texttable[@title="Static Table Entries"]/c');
my @nodes = $doc->findnodes($stattable);
print <<'EOF';
package Protocol::HTTP2::StaticTable;
use strict;
use warnings;
require Exporter;
our @ISA = qw(Exporter);
our ( @stable, %rstable );
our @EXPORT = qw(@stable %rstable);
@stable = (
EOF
while (@nodes) {
my ( $idx, $name, $value ) = map { $_->textContent } splice( @nodes, 0, 3 );
last unless $idx;
printf qq{ [ "%s", "%s" ],\n}, $name, $value;
}
print <<'EOF';
);
for my $k ( 0 .. $#stable ) {
my $key = join ' ', @{ $stable[$k] };
$rstable{$key} = $k + 1;
$rstable{ $stable[$k]->[0] . ' ' } = $k + 1
if ( $stable[$k]->[1] ne ''
&& !exists $rstable{ $stable[$k]->[0] . ' ' } );
}
1;
EOF
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