March 2005
Intermediate to advanced
1064 pages
34h 51m
English
Content preview from Pro Perl
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CHAPTER 17Debugging, Testing, and Profiling
Perl comes with a comprehensive and fully featured debugger. Unlike other languages, however, the debugger is not a separate tool but simply a special mode of the Perl interpreter, which makes use of an external library called perl5db.pl. To enable it, we use the -d option, after which we may step through code, set breakpoints, examine, and execute code selectively from inside the debugger.
In addition to the debugger, Perl supplies a number of modules designed for debugging support or that are simply useful for debugging. In particular, the Safe module allows us to create a restricted environment for Perl scripts to run in, and the Test::Harness module in conjunction with Test, Test::Simple, or
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.