in reply to Formatting nested data structure in Perl6::Form

I'm guessing your issue is that %table is a hash of arrays. I would propose perhaps the best solution is a join (untested): 
my $report = form {bullet => '*'}, '+---------------------------------
+--------------------------+', '| {[[[[[[[[[[[[[[[[[[[[[[[[[[[} * {[[[
+[[[[[[[[[[[[[[[[[[} |', \@addresses, [map {join ", " @{$table{$_}} @a
+dresses], '| |', '+--------------------------------------------------
+---------+';

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#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In Section Seekers of Perl Wisdom