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Re: eval, but syntax-check only -- like perl -c

by eduardo (Curate)
on Apr 24, 2003 at 18:05 UTC ( #252964=note: print w/replies, xml ) Need Help??

in reply to eval, but syntax-check only -- like perl -c

UPDATE: on second thought, I can't figure out how you would use B::Deparse intelligently, so don't pay much attention to my post :)

As far as I can tell, as you probably know, only perl can parse Perl. You might have a good shot at trying to use something crazy like B::Deparse (look in the USING B::Deparse AS A MODULE section), but even that's not going to successfully figure out the syntax of "all of perl."

Unless one of the considerably more knowledgable monks corrects me, and I hope they do, you are pretty much stuck with "perl -c" (though I would usually do "perl -wc" :)

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Re: Re: eval, but syntax-check only -- like perl -c
by diotalevi (Canon) on Apr 24, 2003 at 20:03 UTC

    There are intelligent ways to use B::Deparse but none of them apply to checking perl for syntactical correctness. The canonically correct way is to invoke the parser somehow whether through eval "sub { $code }" or through perl -c tempfile.txt.

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