Most Perl programmers were originally trained as C and Unix
programmers, so the Perl programs that they write bear a strong
resemblance to C programs. However, Perl incorporates many features
that have their roots in other languages such as Lisp. These
advanced features are not well understood and are rarely used by
most Perl programmers, but they are very powerful. They can
automate tasks in everyday programming that are difficult to solve
in any other way. One of the most powerful of these techniques is
writing functions that manufacture or modify other functions. For
example, instead of writing ten similar functions, a programmer can
write a general pattern or framework that can then create the
functions as needed according to the pattern. For several years
Mark Jason Dominus has worked to apply functional programming
techniques to Perl. Now Mark brings these flexible programming
methods that he has successfully taught in numerous tutorials and
training sessions to a wider audience.
* Introduces powerful programming methods--new to most Perl
programmers--that were previously the domain of computer
scientists
* Gradually builds up confidence by describing techniques of
progressive sophistication
* Shows how to improve everyday programs and includes numerous
engaging code examples to illustrate the methods
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