Here is one way: 
s/(^.*<)\:([a-z]+)>/ "$1" . ( exists $inst{ $2 } ? $inst{ $2 } : $inst
+{ default } ) /e;

[download]
or 
s/(^.*<)\:([a-z]+)>/ "$1" . ( $inst{ $2 } || $inst{ default } ) /e;

[download]
Boris

In reply to Re: Having a "default" hash value! by borisz
in thread Having a "default" hash value! by Ace128

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