On Wed, Jul 8, 2009 at 09:31, Steve Bertrand<st...@ibctech.ca> wrote:
snip
> my %newhash = map { $_ =~ s/h_/hello_/; ($_, $hash{$_}) } keys %hash;
snip
That will still have a problem: $_ is changed, so it won't reference
the correct thing in %hash. Try this instead:
my %newhash = map { (my $k = $_) =~ s/h_/hello_/; $k => $hash{$_} } keys %hash;
Although, at this point the map is becoming complex enough that
my %newhash;
for my $key (keys %hash) {
(my $new_key = $key) =~ s/h_/hello_/;
$newhash{$new_key} = $hash{$key}
}
may be more understandable.
--
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.
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