Using kramdown to process markdown to latex and html

mdproc.rb

#!/usr/bin/env ruby

# This is what I'm using to process a directory full 
# of kramdown (~markdown) files.
# 
# Copyright 2010 David M. Doolin (david.doolin@gmail.com)
#
# License: Public domain. 

# And a little transclusion demo...

require 'kramdown'

headers = ['chapter','section','subsection','subsubsection',
  'paragraph','subparagraph']

filelist = Dir.glob("*.md")
filelist.each { |fl|

  fileroot = File.basename(fl,'.*')

  file = File.open(fileroot + ".md", "rb")
  contents = file.read
  document = Kramdown::Document.new(contents,
				    :latex_headers => headers, :auto_ids => true)
  File.open("./tex/" + fileroot + ".tex","w+") { |f|
    f.write(document.to_latex)
  }

  File.open("./epub/OEBPS/" + fileroot + ".html","w+") { |f|
    f.write(document.to_html)
  }

  file.close
}