If you are interested in a more compact style, you could be writing your @sections loop as 

section($tab, sub {
    for my $line (@$_) {
        heading($tab,$1,$2, { id => idify($2) }), next if $line =~ /^(
+[1-6])\s+(.*)/;
        line($tab,$line),                         next if $line =~ /^<
+/;
        line($tab,"<$line>"),                     next if $line =~ /^[
+bh]r$/;
        paragraph($tab,$line);
    }
}) for @sections;

[download]

I like this for its tabular look where the action is on the left and the condition on the right. It also avoids the chain of elsifs. The danger is that it becomes difficult to stay the course when the actions become more complex...

In reply to Re^5: Group __DATA__ lines in a while? by hdb
in thread Group __DATA__ lines in a while? by Lady_Aleena

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