When I tried busunsl's link above, I got a "404 Not Found." The next logical step was to try the "Wayback Machine", where I found this copy of Joseph N. Hall's PErl Graphical Structures (PEGS) (tar archive).

Further Googling led to Effective Perl: Intermediate and Advanced Topics, which contains a number of pages on PEGS.

(Thanks to busunsl for this tutorial.)

Enjoy!

planetscape

In reply to Re: references by planetscape
in thread intro to references by busunsl

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