you could use Scalar::Utils looks_like_number:
use Scalar::Util qw(looks_like_number);
my $myval = someKindOfUserInput(); # jepp, I'm mostly into java here @
+work ,)
[...]
if (looks_like_number($myval)) {
# a number, maybe even Inf or somesuch thing
}
[...]
Edit: "enhanced" the code-snippet, declaring the tested variable...
regards,
tomte
Hlade's Law:
If you have a difficult task, give it to a lazy person --
they will find an easier way to do it.
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