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Perl: The Programmer's Companion (Computer Science) (Englisch) Taschenbuch – 25. September 1997

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EUR 61,90
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Produktinformation

  • Taschenbuch: 312 Seiten
  • Verlag: John Wiley & Sons; Auflage: 1. Auflage (25. September 1997)
  • Sprache: Englisch
  • ISBN-10: 047197563X
  • ISBN-13: 978-0471975632
  • Größe und/oder Gewicht: 19,2 x 1,7 x 22,9 cm
  • Durchschnittliche Kundenbewertung: 4.3 von 5 Sternen  Alle Rezensionen anzeigen (10 Kundenrezensionen)
  • Amazon Bestseller-Rang: Nr. 775.595 in Fremdsprachige Bücher (Siehe Top 100 in Fremdsprachige Bücher)
  • Komplettes Inhaltsverzeichnis ansehen

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Produktbeschreibungen

Amazon.de

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.

Synopsis

Perl The Programmer's Companion Nigel Chapman Perl is a powerful and flexible programming language. A programmer can easily put together short Perl programs to perform tasks that might otherwise require hours of development effort from a team of specialists-and it's free! Perl is different in many ways from more conventional languages, and programmers who are used to Java, C or C++ can find its syntax and data types unusual. The Programmer's Companion is intended to show such programmers the power of Perl and to introduce them to its unique features. Clearly flagged comparisons with other languages help relate Perl's features to familiar territory. Written in a clear and approachable style, the author's account of Perl is informed by his extensive knowledge of other programming languages.

The book includes: a description of new Perl5 language extensions and characteristics such as the object-oriented features live, up-and-running programming examples based on real Perl scripts an introduction to the use of modules which extend the power of Perl into many application areas using Perl on the Web pointers to Perl resources on the Web The Programmer's Companion is not exclusive to Unix users, but presents Perl as a language that can ease the programmer's burden, no matter what system it is used on. Visit our website at http://www wiley.com/compbooks/ This book is arranged in an innovative way: rather than introduce the language keyword by keyword, it introduces "template" programs that make use of Perl's neat pattern features and implicit arguments. This way, even at the beginning, you can get useful programs running rather than just printing "Hello world" various numbers of times . The Programmer's Companion fills the niche for a Perl language learning book aimed at the programmer who wants a solid book, to teach the language, which (1) doesn't hand-hold too much, and (2) covers most of the more advanced features of the language.

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Kundenrezensionen

4.3 von 5 Sternen

Die hilfreichsten Kundenrezensionen

Format: Taschenbuch
I don't understand how this book could possibly be rated five stars!
The negative in my one-line summary in bold print above is an understatement. The choice of font was poor. You could really ruin decent content in this way. The diagrams are confusing and the icons are...silly. The layout and typography are quite poor.
With the words "The Programmer's Companion" in the title, you would think of the book as a reference. That's not what it is at all.
Even the content of the book isn't so great either. It goes into a few basic features of the language and then delves right into the advanced features. I want a book that will at least explain all of the basic features first! Some of the examples towards the beginning of the book were complex and demonstrated things that people are unlikely place in their programs. Why would we need our interpreter to convert shorter amounts of code in a different programming language to Latex?
Some end-of-chapter reviews and excersises would certainly have made a fine addition.
Last, but not least, the language was very complicated. Most people learn Perl when they are in high-school and then become Perl or web developers who use Perl for writing CGI scripts. The wording was difficult to interpret. It seemed as if it was written for someone in their fourth year of college at Harvard University (which sort of an exagerration, but it did seem like that at times). Many pieces of code in the examples were unexplained.
If you are an advanced programmer and simply want to add Perl to your knowledge bank, and have already completed four years of college, and can ignore the book's layout faults, then this book will work out fine for you. Unfortunately, this doesn't cover too many people.
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Format: Taschenbuch
When I bought "Perl: The Programmer's Companion", I had a number of others books on Perl already, among which the well-known "Camel book" ("Programming Perl" by Larry Wall et al.). None of those books satisfied me: they were written by people more good at writing smart programs than understandable manuals.
"Perl: The Programmer's Companion" belongs to an higher class: the class of book written by talented, professional teachers. In this book, every single feature of Perl is clearly explained in detail. You can find simple, clear, meaningful and reusable examples of every element of the language. The book is clearly structured and it is easy to find what you need.
The author demonstrates a clear understanding of the human learning process, besides a clear dominance of the Perl language. You can follow him trustfully and relaxed: he will tell you what you need to know, without overloading and confusing you with irrelevant details.
If you are looking for your first (and last) book on Perl, this is the best you can find on the market.
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Von Ein Kunde am 5. August 1999
Format: Taschenbuch
One of the other reviewers (who gave the book only 2 stars) complained: >The wording was difficult to interpret. It seemed as if it was written for someone in their fourth year of college at Harvard University (which sort of an exagerration, but it did seem like that at times).<
The reviewer may not realize that the author is British. The British generally seem to be more articulate than Americans, so the language reflects that difference.
That aside, this book is a good choice for new Perl programmers, in that it is less "techie", although it still has some real substance to it.
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Format: Taschenbuch
The book has interesting things to say, and explains a number of tricky Perlisms quite nicely (e.g. eval() for exception handling).
Sadly, the design, typography and layout of the book are average, with confusing diagrams, poor choice of fonts, and some silly iconography.
The result is that this book is a worthwhile front to back read, but as a reference or 'companion' you would be better off with 'Effective Perl Programming'.
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Von joe_n_bloe am 30. September 1998
Format: Taschenbuch
Moderately experienced and seasoned Perl programmers looking for another book to contemplate on their way toward Perl mastery can't go wrong with this one. Nigel's prose is thoughtful and clear, and so is his Perl. And what do you know, the book is beautifully typeset as well! A little offbeat at times, but on the other hand it's helpful to experience a fresh new viewpoint. Useful and highly recommended.
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