Detect data track from XLD logs

detect-data-track.rb

def main
  Dir["/Users/tily/Music/CDs/*/*.log"].each do |path|
    f = File.open(path)
    table_num, track_num = parse(f)
    if table_num != track_num
      puts "#{path}: table -> #{table_num}, track -> #{track_num}"
    end
  end
end

def parse(io)
  lines = io.read.split("\n")
  iter = lines.each

  table_num = nil
  track_num = nil

  while true
    begin
      l = iter.next
      if l.match(/^TOC of the extracted CD$/)
        while true
          l = iter.next
          if num = l[/^\s+(\d+)/, 1]
            table_num = num.to_i
          end
          if l == ""
            break
          end
        end
      end

      if num = l[/^Track (\d+)/, 1]
        track_num = num.to_i
      end
    rescue StopIteration => e
      break
    end
  end

  return [table_num, track_num]
end

main