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Re: Reverse Engineering Perl Tool?

by quidity (Pilgrim)
on Dec 08, 2000 at 16:53 UTC ( #45730=note: print w/replies, xml ) Need Help??


in reply to Reverse Engineering Perl Tool?

You might want to use Deparse to show you the reduced syntax, this will produce slightly prettier output, which might help you a little.

# bad perl print $foo; s/dog/cat/gm; m%foo%; FOO: for ($foo) { /dog/ && do {last FOO}; /cat/ && do {$dog = 'rabbit' +};} exit(0) or die "wooot?";

When run through Deparse:

bash-2.03$ perl -MO=Deparse badperl.pl badperl.pl syntax OK print $foo; s/dog/cat/gm; /foo/; FOO: foreach $_ ($foo) { if (/dog/) { last FOO; } if (/cat/) { $dog = 'rabbit'; } } die 'wooot?' unless exit 0;

As you can see, some bits get clearer, while others get a little more murky, but it's a useful tool.

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[stevieb]: use metamod::DateTime. Don't fsck around. Seriously. As someone who's done sensitive date/time stuff, don't roll your own. Use what is available and known stable. Do not guess.
[stevieb]: Date::Time even
[stevieb]: ffs I can't make DateTime link properly, so there.
[atcroft]: .oO(It is a well-known, well-tried module that has probably encountered more corner-cases and oddities than the average mortal programmer can imagine when trying to roll their own...)

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