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Re: "open" Best Practices

by Discipulus (Abbot)
on Jul 12, 2019 at 07:33 UTC ( #11102715=note: print w/replies, xml ) Need Help??

in reply to "open" Best Practices

Thanks haukex for this, I vote for you and hippo as new perlmonks tutorial organiser ;) I confused haukex and hippo.. both are anyway worth to thanks ;)

> It is best to also report the filename as well, and of course you're free to customize the message as needed.

About this I almost always use the filename within square brackets or single quotes, to avoid nasty empty space problems (even if your use, with filename as first element and followed by : can spot these problems too). I also spend more words in errors, just in case:

open my $fh, '<', $filename or die "Unable to open [$filename] becaus +e of: $!";

Also, being on unfortunate OS , sometimes I add $^E aka $EXTENDED_OS_ERROR ( under MSWIN32 $^E can be different from $! ):

open my $fh, '<', $filename or die "Unable to open [$filename] becaus +e of: $! $^E";


There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

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