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Interesting to note that ExtremeProgramming has emerged as a methodology for programming; it appears to be based in trial and error programming! Without tests and refactoring, it is not workable at all. So why not design first, write tests to that design, then program, test, perform refactoring and iterate? That's exactly what ExtremeProgramming is, friend. Just do it in tiny increments. "The differences between XP and trial-and-error are basically two-fold: first, you solve each error as it comes up, so that it doesn't compound with later errors. And second, you meant to do it that way in the first place, rather than being forced to come back and deal with unforeseen complications.

Our goal is not to cover everything in Perl, or make you an expert. What we've found, though, is that many Perl programmers don't know what they don't know. Perl101.org hopes to change that.

Mediawiki is the software used by the popular Wikipedia. It allows humans very easily to create, maintain and improve documents in shared environments. One of the strengths of the software is that the content is seperated from the layout. This means that the source of a document/page/article specifies the structure of the information, but usually not how the information is finally rendered in the browser.

f your XML parsing requirements can be boiled down to "slurp an XML file into a hash", then XML::Simple is very likely all you need. However, many people who start using XML::Simple continue to cling to the module even when their requirements have outgrown it. Most often, it's fear of the unknown that keeps them from 'stepping up'; to a more capable module. In this article, I'm going to attempt to dispel some of that fear by comparing using XML::LibXML to using XML::Simple.