In this chapter, you learned some useful applications of parsers that did not directly integrate themselves well into any
of the previous chapters. The chapter covered how you can allow users to have greater control over the operation of Perl programs
by parsing command- line arguments and by parsing configuration files. The chapter also demonstrated how you can use some
of the parsing knowledge in this book to refine results returned by a search engine. Last, the chapter discussed the issue
of output formatting in order to allow readers to programmatically create professional-looking reports from the data their
parsers extract.
In the final chapter of the book, you will examine the topic of data mining, which will allow the analysis of extracted data
in the hopes of uncovering trends within the data. You can use the discovery of such trends either for learning more about
the system in question or for predicting results. In other words, Chapter 10 will demonstrate ways you can put your data to
work for you.