| Date: 19 January 2011, 06:21
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Many programmers code by instinct, relying on convenient habits or a"style" they picked up early on. They aren't conscious of all thechoices they make, like how they format their source, the names they usefor variables, or the kinds of loops they use. They're focused entirelyon problems they're solving, solutions they're creating, and algorithmsthey're implementing. So they write code in the way that seems natural,that happens intuitively, and that feels good.
But if you're serious about your profession, intuition isn't enough.Perl Best Practices author Damian Conway explains that rules,conventions, standards, and practices not only help programmerscommunicate and coordinate with one another, they also provide areliable framework for thinking about problems, and a common languagefor expressing solutions. This is especially critical in Perl, becausethe language is designed to offer many ways to accomplish the same task,and consequently it supports many incompatible dialects.
With a good dose of Aussie humor, Dr. Conway (familiar to many in thePerl community) offers 256 guidelines on the art of coding to help youwrite better Perl code--in fact, the best Perl code you possibly can.The guidelines cover code layout, naming conventions, choice of data andcontrol structures, program decomposition, interface design andimplementation, modularity, object orientation, error handling, testing,and debugging.
They're designed to work together to produce code that is clear, robust,efficient, maintainable, and concise, but Dr. Conway doesn't pretendthat this is the one true universal and unequivocal set of bestpractices. Instead, Perl Best Practices offers coherent and widelyapplicable suggestions based on real-world experience of how code isactually written, rather than on someone's ivory-tower theories on howsoftware ought to be created.
Most of all, Perl Best Practices offers guidelines that actually work,and that many developers around the world are already using. Much likePerl itself, these guidelines are about helping you to get your jobdone, without getting in the way.
Praise for Perl Best Practices from Perl community members:
"As a manager of a large Perl project, I'd ensure that every member of my team has a copy of Perl Best Practices on their desk, and use it as the basis for an in-house style guide." -- Randal Schwartz"There are no more excuses for writing bad Perl programs. All levels of Perl programmer will be more productive after reading this book." -- Peter Scott"Perl Best Practices will be the next big important book in the evolution of Perl. The ideas and practices Damian lays down will help bring Perl out from under the embarrassing heading of "scripting languages". Many of us have known Perl is a real programming language, worthy of all the tasks normally delegated to Java and C++. With Perl Best Practices, Damian shows specifically how and why, so everyone else can see, too." -- Andy Lester"Damian's done what many thought impossible: show how to build large, maintainable Perl applications, while still letting Perl be the powerful, expressive language that programmers have loved for years." -- Bill Odom"Finally, a means to bring lasting order to the process and product of real Perl development teams." -- Andrew Sundstrom"Perl Best Practices provides a valuable education in how to write robust, maintainable Perl, and is a definitive citation source when coaching other programmers." -- Bennett Todd"I've been teaching Perl for years, and find the same question keeps being asked: Where can I find a reference for writing reusable, maintainable Perl code? Finally I have a decent answer." -- Paul Fenwick"At last a well researched, well thought-out, comprehensive guide to Perl style. Instead of each of us developing our own, we can learn good practices from one of Perl's most prolific and experienced authors. I recommend this book to anyone who prefers getting on with the job rather than going back and fixing errors caused by syntax and poor style issues." -- Jacinta Richardson"If you care about programming in any language read this book. Even if you don't intend to follow all of the practices, thinking through your style will improve it." -- Steven Lembark"The Perl community's best author is back with another outstanding book. There has never been a comprehensive reference on high quality Perl coding and style until Perl Best Practices. This book fills a large gap in every Perl bookshelf." -- Uri Guttman
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