in reply to Regex During Map Function

You can use grep to filter out empty values

%params = map { $_ => join("; ", grep {$_} split("\0", $cgi->Vars->{$_})) } $cgi->param;

-- Regards - Samar

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Re^2: Regex During Map Function
by AnomalousMonk (Archbishop) on Dec 15, 2010 at 16:23 UTC

    Remember, however, that '0' is false, hence will be filtered out. Better, perhaps, to use
        grep { length $_ }

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Re^2: Regex During Map Function
by deMize (Monk) on Dec 20, 2010 at 14:51 UTC
    I don't want to filter out all empty values, though. Just the leading of a multi-valued element.

    If a form control has a bunch of checkboxes w/ the same element name, I want them all. I also want the blank values for those elements that don't have multiple values.

    For some reason there's an empty value for a multi-valued list control.
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