1.6: Extraction Code
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Sort::Maker
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Each key needs code to extract it from a record
Each record is aliased to $_ (via map)
Key extraction code operates on $_ and gets the value for this key
The extraction code is executed in list context so m/(foo)/ works
The code is inside a do{} block so you can have multiple statements
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YAPC::NA 2004, Buffalo, NY
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© 2004 Uri Guttman