Markdown To HTML.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'osax'
require 'maruku'

doc = Appscript.app('WriteRoom').documents[0]
path = doc.file.get.path

file = File.join(
  File.dirname(path),
  File.basename(path).gsub(File.extname(path), '.html'))

# add some style to a dull HTML
md = <<-MARKDOWN
CSS: ../main.css

MARKDOWN

# append the content and convert
md += doc.text_contents.get
m = Maruku.new(md)

# save and open HTML file in browser
File.open(file, 'w') { |f| f.write(m.to_html_document) }
exec "open #{file}"