Function chain

mini-code-editor/cm/mode/javascript/javascript.js:24–27

(stream, state, f)

  var isOperatorChar = /[+\-*&%=<>!?|]/;

  function chain(stream, state, f) {
    state.tokenize = f;
    return f(stream, state);
  }

  function nextUntilUnescaped(stream, end) {
    var escaped = false, next;