Download - The Bastards Book of Regular Expressions

Lookarounds 123...Page 1 of 4FAA Contract Tower Closure List(149 FCTs)3222013LOCID Facility Name City StatePIH POCATELLO RGNL POCATELLO IDSUN FRIEDMAN MEMORIAL HAILEY IDThe first step is to remove all the non-data lines. The easiest way to do this is to first consider: whatare the data lines here?The data lines we want to keep have four fields: A 3-letter airport code, the airport’s name, the city,and the two-letter state code.So, the non-data lines are anything that: 1. don’t begin with three capital letters, and 2. don’t endwith a two-letter state code.(TODO )Find ˆ[A-Z]([A-Z]{3}) +(.+?) {3,}(.+?) {3,}([A-Z]{2})$1\t$2\t$3\t$4http://www.faa.gov/news/media/fct_closed.pdfDelete useless linesˆ(?:\s.+|\s*)\nChange to location: (.+?)\t([A-Z]{2})$ (city, state)