When Perl sees an open brace ({) that isn't part of some construct (like $hash{$key}), it sometimes isn't sure whether it is meant to start a block or an anonymous hash reference. You can tell Perl which you meant by using +{ for anonymous hash reference and {; for a block.

You are trying to pass a block to map so you can change the problematic line to: 

$two->( map {; anda => $_ } @one );

[download]
which is a bit ugly.

                - tye

In reply to Re: (5.6.1) map mayhem? (+{ {;) by tye
in thread (5.6.1) map mayhem? by jynx

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