The easiest way is to use the tools that CPAN provides you with...

use Data::Visitor::Callback;

my $visitor = Data::Visitor::Callback->new(
    hash => sub {
        my $new = {};
        while ( my ( $key, val ) = each %{ $_ } ) {
            $key =~ s/\s+//g;
            $new->{ $key } = $val;
        }
        return $new;
    },
);

my $without_spaces = $visitor->visit( \%global );

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www.jasonkohles.com
We're not surrounded, we're in a target-rich environment!

In reply to Re: removing the spaces from keys of a complex hash by jasonk
in thread removing the spaces from keys of a complex hash by gwhite

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