Article:		An Introduction to Haskell, Part 1: Why Haskell
Subject:		regex
Date:		2007-05-26 01:45:03
From:		pipping
'^(NYC?|New York( City)?)$' is better written as '^N(YC?|ew York( City)?)$' or even '^(?=N)(NYC?|New York( City)?)$'

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• regex
  2007-05-26 02:04:01  pipping [View]
  
  
  that came out wrong. i meant to say 'the above regex could be written differently, possibly resulting in optimization - forced optimization in the latter case, which might even be bad if the optimization is already present. however, '^N(YC?|ew York( City)?)$' will in any case be at least as fast as the original regex, the only downside could be decreased readability'
  
  kind regards!