Function lookahead

static/editor.md/lib/codemirror/mode/erlang/erlang.js:345–348

(stream)

  }

  function lookahead(stream) {
    var m = stream.match(/([\n\s]+|%[^\n]*\n)*(.)/,false);
    return m ? m.pop() : "";
  }

  function is_member(element,list) {
    return (-1 < list.indexOf(element));