in reply to Understanding Chaos
there is a semi-functional extention to doxygen that can grok perl: http://www.bigsister.ch/doxygenfilter/ - Devel::XXX, perl and grep for instantiations, function defs and calls and make pretty html out of it. robodocumentation is out there. also Komodo from activestate will let you step through code like other debuggers but with a more graphical nature.
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