[HRPM] matching blank lines

[Troy E. Webster]

Ok time for a stupid question,

I need a bullet proof way to match a blank line with whatever whitespace
is on it.

using $line eq "\n" isn't working in all cases.

Isn't there a way to match *only* whitespace using the =~ operator?

Thanks,
Troy

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``Beware of bugs in the above code; I have only proved it correct, not
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