+ elsif postcode.match(/^(\w{1,2}\d+\w?\s*\d\w\w)/)
+ # It matched our naive UK postcode regexp
+ # Ask npemap to do a combined npemap + freethepostcode search
+ Net::HTTP.start('www.npemap.org.uk') do |http|
+ resp = http.get("/cgi/geocoder.fcgi?format=text&postcode=#{escaped_postcode}")
+ dataline = resp.body.split(/\n/)[1]
+ data = dataline.split(/,/) # easting,northing,postcode,lat,long
+ lat = data[3]
+ lon = data[4]
+ redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+ end
+ else
+ # Some other postcode / zip file
+ redirect_to "/index.html?error=unknown_postcode_or_zip"