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Perl Best Practices, by Damian Conway
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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 the choices they make, like how they format their source, the names they use for variables, or the kinds of loops they use. They're focused entirely on problems they're solving, solutions they're creating, and algorithms they'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 programmers communicate and coordinate with one another, they also provide a reliable framework for thinking about problems, and a common language for expressing solutions. This is especially critical in Perl, because the 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 the Perl community) offers 256 guidelines on the art of coding to help you write better Perl code--in fact, the best Perl code you possibly can. The guidelines cover code layout, naming conventions, choice of data and control structures, program decomposition, interface design and implementation, 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 pretend that this is the one true universal and unequivocal set of best practices. Instead, Perl Best Practices offers coherent and widely applicable suggestions based on real-world experience of how code is actually 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 like Perl itself, these guidelines are about helping you to get your job done, 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
- Sales Rank: #575789 in Books
- Published on: 2005-07-22
- Released on: 2005-07-19
- Original language: English
- Number of items: 1
- Dimensions: 9.19" h x .98" w x 7.00" l, 1.74 pounds
- Binding: Paperback
- 544 pages
Features
- ISBN13: 9780596001735
- Condition: New
- Notes: BRAND NEW FROM PUBLISHER! 100% Satisfaction Guarantee. Tracking provided on most orders. Buy with Confidence! Millions of books sold!
Review
"If you are looking for a book to teach you how to program Perl, this is definitely not what you need. Also, if you are cranking out quick Perl scripts to solve one-time tasks, it might not be worth the effort to read this book. However, if you are fairly comfortable with the language and are looking for ways to improve your code, this book would be a wonderful addition to your bookshelf." - James Mohr, Linux Magazine, November 2005
About the Author
Damian Conway holds a PhD in Computer Science and is an honorary Associate Professor with the School of Computer Science and Software Engineering at Monash University, Melbourne, Australia.Currently he runs an international IT training company--Thoughtstream--which provides programmer development from beginner to masterclass level throughout Europe, North America, and Australasia.Damian was the winner of the 1998, 1999, and 2000 Larry Wall Awards for Practical Utility. The best technical paper at the annual Perl Conference was subsequently named in his honour. He is a member of the technical committee for The Perl Conference, a keynote speaker at many Open Source conferences, a former columnist for The Perl Journal, and author of the book Object Oriented Perl. In 2001 Damian received the first "Perl Foundation Development Grant" and spent 20 months working on projects for the betterment of Perl.A popular speaker and trainer, he is also the author of numerous well-known Perl modules, including Parse::RecDescent (a sophisticated parsing tool), Class::Contract (design-by-contract programming in Perl), Lingua::EN::Inflect (rule-based English transformations for text generation), Class::Multimethods (multiple dispatch polymorphism), Text::Autoformat (intelligent automatic reformatting of plaintext), Switch (Perl's missing case statement), NEXT (resumptive method dispatch), Filter::Simple (Perl-based source code manipulation), Quantum::Superpositions (auto-parallelization of serial code using a quantum mechanical metaphor), and Lingua::Romana::Perligata (programming in Latin).Most of his time is now spent working with Larry Wall on the design of the new Perl 6 programming language.
Most helpful customer reviews
57 of 60 people found the following review helpful.
This book has changed my life
By Eric J. Wu
This is a must-read for any Perl programmer. You are only as good as the teachers you have, and if your teachers use stuff like $|++, you are screwed. In this case, Conway would tell you to Use English;, and then you'd know what a $| is. A sampling of other tips:
Don't modify via $_ (too easy to screw things up)
Use hashes for arguments if arguments > 3 (trackability)
Use Croak instead of die (Croak gives more info, better for debugging)
Use ' ' instead of " " when no interpolation (less ambiguity)
Don't use unless (complication and confusion).
use /xms in regexes (for readability, and avoiding mistakes)
test when closing or opening a file
A few of the reviews here are 1 star. IMO these are people to which "freedom" is more important than "group code maintainability". This should really be the third Perl book for anybody, after Learning Perl and Intermediate Perl.
For those wanting to test their code against this book, there is a Perl Module, Perl::Critic, that does the job.
1 of 1 people found the following review helpful.
Excellent guide for writing better code
By Amazon Customer
Not only do these practices apply to Perl, but they apply to any language. I have told several people who are not perl progreammers to references several of the practices since they hold true in any language.
This is a purely practical book on how to write code that anyone can read and follow with minmal effort. It covers various aspects of coding styles and gives clear concice reasons for WHY they should be used. You can for example, using this book, give a clear reference why spaces should be used over tabs, or why underscores in variable names are simply easier for humans to parse than CamelCase.
0 of 0 people found the following review helpful.
Perl scripters should either read this book or be beaten with it
By Robert Hill
More people should read this book AND FOLLOW ITS SUGGESTIONS.
See all 53 customer reviews...
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