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Debugging Perl: Troubleshooting for Programmersby jlawrenc (Scribe)
|on Mar 14, 2001 at 20:47 UTC||Need Help??|
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Item Description: A guide to writing more troublefree code and finding problems in the code you have.
Although the title suggests a 1000 and 1 ways to use the Perl debugger, it is more than that. It is about techniques and approaches to write code with less bugs in addition to debugging existing code. Brown provides coverage of Perl internals topics, programming style and techniques. He also addresses some issues to do with code optimization and efficiency issues.
Prior to reading Debugging Perl I was not aware of the multitude of debugging output flags that you can use when executing a Perl program. I have dabbled with other subjects such as profiling and compiler backends, but was pleased to see Brown covering these and adding to my understanding of them. The term debugging is a loaded one and subject to many interpretations. For some debugging might mean findind the failure in their program. A syntax error or a runtime error. Others it might be trying to figure out why their memory is getting chewed up or they are running short of CPU time. You might even be contemplating bugs waiting to happen in someones scary code.
Granted, we all have our own programming styles. And from that perspective I view Brown's book as:
All and all, I would suggest that this is an solid supplement to your collection of O'Reilly books and is of value to those who wish to become a better and better Perl programmer. Scan it over the next time you're at your local bookstore and decide for yourself!
Table of Contents for Debugging Perl Chapter 1: Introduction. Part I: Perl Logic and Syntax. Chapter 2: How Perl Parses a Statement. Chapter 3: Variable Problems. Chapter 4: Regular Expression Traps. Chapter 5: Using Abstraction as a Design Methodology. Chapter 6: Language/Platform Migration Guide. Part II: Error Trapping. Chapter 7: Basic Error Trapping. Chapter 8: Using Pragmas and Warnings. Chapter 9: Manual Degbugging Techniques. Chapter 10: The Perl Debugger. Part III: Optimizing Your Code. Chapter 11: Manual Optimization. Chapter 12: Automatic Optimization. Part IV: Testing Your Code. Chapter 13: Building a Test Harness. Chapter 14: Breaking Your Code. Part V: Appendices.Update: Read Linux Journal's review that jmcnamara so excellently supplied. After reading Paul's comments and I revised my review. Although, I feel that Paul's review is pretty harsh I can see how some people might see the book from his perspective. Personally, I still feel that Debugging Perl has value in my library and has given me my money and time's worth.