Whether your knowledge of Perl is casual or deep, this book will make you a more accomplished programmer. Here you can learn the complex techniques for production-ready Perl programs. This book explains methods for manipulating data and objects that may have looked like magic before. Furthermore, it sets Perl in the context of a larger environment, giving you the background you need for dealing with networks, databases, and GUIs. The discussion of internals helps you program more efficiently and embed Perl within C, or C within Perl. In addition, the book patiently explains all sorts of language details you've always wanted to know more about, such as the use of references, trapping errors through the eval operator, non-blocking I/O, when closures are helpful, and using ties to trigger actions when data is accessed. You will emerge from this book a better hacker, and a proud master of Perl. This publication advances your Perl scripting. skills beyond the bounds of elementary script constructs, and into the realm of production-ready scripts within the context of network, database and GUI environments. Covers such advanced features as run-time evaluation, persistence, code generation, and the innards of the Perl interpreter. Discusses data references, complex data structure implementation, typeglobs, symbol tables, structure references and closures. Reviews object-oriented programming, then dives into the essence of this publication, sockets networking, RPC implementation, and Perl/Tk user interface scripting. Examines template driven code generation, and shows how to extend Perl and embed scripts.