canada.rb

#!/usr/bin/env ruby
# ./canada.rb amateur.txt
     Fields = %w{call first_name last_name address city postal_code license}
puts Fields.join ','

open(ARGV[0],:encoding=>"ISO8859-1").each_line.map{|l|
  p = (case l.size
       when 212 then
         l.match /^(?<call>.{7})(?<first_name>.{36})(?<last_name>.{36})(?<address>.{71})(?<city>.{36})(?<postal_code>.{14})(?<license>.{10})/
       when 471 then
         l.match /^(?<call>.{7})(?<skip>.{193})(?<license>.{10})(?<first_name>.{71})(?<last_name>.{71})(?<address>.{71})(?<city>.{36})(?<postal_code>.{11})/
       end)

  puts Fields.map{|f|p[f].strip.gsub(/,/,'\,')}.join(',') if p

}