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Download E-books Pro Perl Debugging PDF

Posted On March 30, 2017 at 9:55 am by / Comments Off on Download E-books Pro Perl Debugging PDF

By Andy Lester, Richard Foley

Combining the simplest gains of C, UNIX utilities, and standard expressions, Perl has grown as some of the most strong and well known scripting languages. the dear Perl is usually used for method management, textual content processing and net programming. it really is even getting used for extra unique components, like bioinformatics. Perl is supported by means of the entire such a lot trendy working platforms, together with home windows, Unix, OS/2, Amiga, and others.

Pro Perl Debugging steps in to aid unravel the problem of software checking out and debugging—one of the largest time commitments in a programmers day-by-day regimen. What this publication will do is rescue you from substandard program checking out practices. The e-book commences with a number of chapters that evaluation the debuggers simple gains, then covers universal debugging situations. The concluding component examines debugger customization, substitute debugging utilities, and debugging top practices.
<h3>Table of Contents</h3><ol> * creation
* examining Variables and Getting aid
* Controlling software Execution
* Debugging an easy Command Line software
* Tracing Execution
* Debugging Modules
* Debugging Object-Oriented Perl
* utilizing the Debugger As a Shell
* Debugging a CGI software
* Perl Threads and Forked procedures
* Debugging ordinary Expressions
* Debugger Customization
* Optimization and function tricks and assistance
* Command Line and GUI Debuggers
* entire Command Reference
* ebook References and URLs
</ol>

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154 Why would i need to take advantage of fork(), Threads, or POE?. . . . . . . . . . . . . . . . . . . 154 utilizing Forks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 application Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 xterm aid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 working the Forker software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 utilizing Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Threads install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . one hundred sixty five the instance Threads software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . one hundred sixty five utilizing POE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred and seventy A pattern POE application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . one hundred seventy precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 ■CHAPTER eleven Debugging typical Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . one hundred seventy five what's a customary Expression? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . one hundred seventy five common tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred seventy five Leaning Toothpick Syndrome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Get an outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Divide and triumph over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 ■CONTENTS utilizing -Dr to Debug Regexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 bring together with -DDEBUGGING to allow -Dr . . . . . . . . . . . . . . . . . . . . 178 checking out Your Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 -Dr Debugging fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred and eighty a whole -Dr Walkthrough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 The Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 The Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 The Walkthrough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 ■CHAPTER 12 Debugger Customization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 inner Debugger Customization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 alias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 pre- and post-prompt instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 . perldb Initialization dossier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 afterinit() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 @DB::typeahead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 PERLDB_OPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Arrow Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 exterior Debugger Customization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 replacement Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 ■CHAPTER thirteen Optimization and function tricks and information . . . . . . . . . . . 211 Benchmarking and Optimizing Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 utilizing Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 Benchmarking Code to check working Time . . . . . . . . . . . . . . . . 212 Profiling Code to discover the place It Spends Its Time . . . . . . . . . . . . . . . . 214 utilizing DProf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 utilizing dprofpp .

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