Another thing you could do is to put in a comment about what the fragment of code does. I.e., something like: 
# Compute the maximum width of any key or value in %lists
# and add a padding.

my $col_width = ...

[download]
or just take a few sentences to explain what's going on.

In reply to Re: I fear my code is unreadable by pc88mxer
in thread I fear my code is unreadable by Boldra

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