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What is so scary about hashrefs?

And I don't know how to create and use such beast, how can I figure out which re of  join "|" , @res matched?

And wouldn't that strain our re engine too much (we're talking about scalability here, will hardware improvements keep such code running with number of patterns and lines to parse linearly growing? )

In reply to Re^2: Matching against list of patterns by Eyck
in thread Matching against list of patterns by Eyck

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