CodeBlock: (block) ->
  fname = os.tmpname!
  with io.open fname, "w"
    \write block.text
    \close!

  if block.classes[1] == "moon" or block.classes[1] == "moonscript"
    p = io.popen ("pygmentize -f html -l moonscript.py %s -x")\format fname

    -- p = io.open fname
    out = p\read"*a"
    p\close!
    pandoc.RawBlock "html", out
    -- pandoc.RawBlock "html", "moonscript"
  else
    status, handle_or_error = pcall ->
      io.popen ("pygmentize -f html -l %s %s")\format block.classes[1], fname
      -- io.open fname

    sout = handle_or_error\read"*a"
    -- handle_or_error\close!
    -- if sout\len! == 0 then block else pandoc.RawBlock "html", sout
    if block.classes[1] == "heex"
      -- pandoc.RawBlock "html", "heex"
      block
    else
      pandoc.RawBlock "html", sout


  -- p = io.open fname
  -- out = p\read"*a"
  -- p\close!
  -- pandoc.RawBlock "html", out