Published at LXer:

Mark Jason Dominus' Higher-Order Perl book is now available for free download in PDF format by virtue of special permission from the publisher. The book is about functional programming techniques in Perl. It's about how to write functions that can modify and manufacture other functions. That way your code is more flexible and more reusable. Instead of writing ten similar functions, you write a general pattern or framework that can generate the functions you want; then you generate just the functions you need according to the pattern.

Read More...