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#!/usr/bin/perl
my %include = ();
my %included = ();
for my $text (<*.txt>) {
open I, '<', $text || die "cannot read: $text";
while (<I>) {
if (/^include::/) {
chomp;
s/^include::\s*//;
s/\[\]//;
$include{$text}{$_} = 1;
$included{$_} = 1;
}
}
close I;
}
# Do we care about chained includes???
my $changed = 1;
while ($changed) {
$changed = 0;
while (my ($text, $included) = each %include) {
for my $i (keys %$included) {
# $text has include::$i; if $i includes $j
# $text indirectly includes $j.
if (exists $include{$i}) {
for my $j (keys %{$include{$i}}) {
if (!exists $include{$text}{$j}) {
$include{$text}{$j} = 1;
$included{$j} = 1;
$changed = 1;
}
}
}
}
}
}
foreach my $text (sort keys %include) {
my $included = $include{$text};
if (! exists $included{$text} &&
(my $base = $text) =~ s/\.txt$//) {
print "$base.html $base.xml : ", join(" ", sort keys %$included), "\n";
}
}
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