Perl Medic: Transforming Legacy Code by Peter J. Scott
Publisher: Addison-Wesley Professional (March 5, 2004) | ISBN-10: 0201795264 | CHM | 1,2 Mb | 336 pages
Perl ranks among hackers' favorite languages–there's always another approach to a problem, always optimization to be done, and forever new techniques to try. Perl's a hoot. But the culture of tinkering that surrounds Perl has resulted in a large body of hard-to-understand legacy code. That legacy code has to be maintained, extended, and adapted to new conditions–often without the help of the person who originally created it. Perl Medic considers Perl from the perspective of a programmer looking at code written by someone else and trying to answer the ancient question: "What were they thinking?"