gistfile1

" Vim Markdown preview
"
" * compile vim with ruby support
" * sudo gem install rdiscount (update load path to absolute path below)
" * add this file to 
"    ~/.vim/ftplugin/mkd.vim 
function! PreviewMKD()
ruby << EOF
  require 'rubygems'
  $:.unshift("/usr/local/lib/ruby/gems/1.8/gems/rdiscount-1.3.4/lib")
  require 'rdiscount'
  
  t = ""
  VIM::Buffer.current.count.times {|i| t += "#{VIM::Buffer.current[i + 1]}\n"}
  html_file = VIM::Buffer.current.name.gsub(/.(md|mkd|markdown)$/, '.html')
  if html_file == VIM::Buffer.current.name
    print "Error! - This file extension is not supported for Markdown previews"
  end
  File.open(html_file, 'w') do |f|
    f.write(RDiscount.new(t).to_html)
  end
  system("open #{html_file}")
EOF
endfunction

map <Leader>p :call PreviewMKD()<CR>