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#!/usr/bin/env perl
use strict;
use warnings;
use open ':encoding(ISO-8859-1)';
($,, $\) = ("\t", "\n");
for my $rfc (@ARGV) {
open my $handle, '<', $rfc or die "${rfc}: $!";
while (<$handle>) {
chomp;
# Section headings
if (/^([\d.]+|[A-Z][.])\s+([^\t]+)?/) {
print $1, $rfc, $.;
print $2, $rfc, $. if $2;
print $1, $rfc, $. if $1 =~ /^([\d.]+)[.]$/;
}
# References
if (/^\s*(\[[\w-]+\])\s{2,}/) {
print $1, $rfc, $.;
print "\\$1", $rfc, $.; # vim ^] prepends \ to [
}
}
die "${rfc}: $!" if $!;
close $handle;
}
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