Function peekToken

static/editor.md/lib/codemirror/mode/erlang/erlang.js:406–415

(state,depth)

  }

  function peekToken(state,depth) {
    var len = state.tokenStack.length;
    var dep = (depth ? depth : 1);

    if (len < dep) {
      return false;
    }else{
      return state.tokenStack[len-dep];
    }
  }

  function pushToken(state,token) {