Function chain

static/editor.md/lib/codemirror/mode/ruby/ruby.js:34–37

(newtok, stream, state)

  var curPunc;

  function chain(newtok, stream, state) {
    state.tokenize.push(newtok);
    return newtok(stream, state);
  }

  function tokenBase(stream, state) {
    curPunc = null;