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Perl: The Programmer's Companion Paperback – Oct 7 1997

4.2 out of 5 stars 11 customer reviews

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Product details

  • Paperback: 292 pages
  • Publisher: Wiley; 1 edition (Oct. 7 1997)
  • Language: English
  • ISBN-10: 047197563X
  • ISBN-13: 978-0471975632
  • Product Dimensions: 19.2 x 1.7 x 22.9 cm
  • Shipping Weight: 567 g
  • Average Customer Review: 4.2 out of 5 stars 11 customer reviews
  • Amazon Bestsellers Rank: #3,051,666 in Books (See Top 100 in Books)
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Product description

From Amazon

There are now a number of good Perl books available, but this excellent contribution stands out in a number of ways (apart from the rarity that it's not from O'Reilly). The most significant way may be that Perl's computer-scientist author advocates the use of Perl as a full-fledged programming language in addition to recommending its use for system administration or CGI programs.

This book is a fine introduction to Perl for experienced C, C++, and Java programmers. Perl has plenty of sidebars that explain the differences between Perl and these other languages and how Perl can help you overcome the limitations of these languages.

Chapman starts off with language basics, but instead of listing all the basic constructs and introducing the obligatory "Hello, world!" program, he introduces you to what he terms "programming idioms." This thought-provoking approach gradually eases you into learning the basic Perl constructs without presenting you with dry examples and tables of potentially confusing information. By the time you realize what's going on, it's too late: you've already learned something. The book has some great chapters, and it even describes how to scope variables correctly (apparently no mean feat, since few tutorials get it right).

The advanced chapters on references and objects really shine. Examples of objects lead you through a logical progression from project visualization to finished product. The author then assists you in creating a set of modules that calculate taxes for a small town, where different rates exist for business and residential buildings. Here, the guide introduces and explains several key concepts for Perl object manipulation.

The examples in the book make sense and, best of all, they are original and have real-world relevance. When explaining pack() and unpack(), the author creates a wonderful example of parsing the headers of a MIDI file to gather track data and then process the individual tracks of the file. While the book does not pack the heft of some Perl tomes (it only contains 273 pages), it's crammed with great examples and ideas. In short, Perl: The Programmer's Companionis a great addition to any Perl programmer's library.

From the Publisher

An introduction to the latest version of Perl. With the increase in Web-based technology, Perl has become the language of choice for creating CGI applications, an essential process for creating large Web pages. This book introduces the latest version, Perl5, to programmers, illustrating the language's strengths and weaknesses. It teaches programmers how to write sophisticated Perl scripts and covers all of the new benefits of Perl5, including improved reusability and enhanced object-oriented programming support.

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