OneNote to Text files

onenote_pdf2text.rb

# Print OneNote to PDF
# Extract Text with
# http://www.extractpdf.com/ and name Main.txt

data = File.read "Main.txt"

data = data.split("\f")

data.each do |el|
  next if el.empty?

  title, *lines = el.split("\n")

  next if title.nil?

  filename = title.gsub(/[^0-9A-Za-z.\-]/, '_')
  File.open("#{filename}.txt", "w") do |f|
    contents = [title] + lines
    contents = contents.join("\n")
    f.puts contents
  end
end