Ideas for selector based server side templating with node

gistfile1.txt

//data
var person = {name: "Dave", exampleattr: "true", friends: ["one","two","three"]};
//map data to selectors
var mapping = {
  name: "#people .person",
  exampleattr: {"#people .person" : "someattr"},
  friends: "#people .friends"
};

//input
<div id="people">
  <span class="person"></span>
  <ul>
    <li class="friends"></li>
  </ul>
</div>

//output
<div id="people">
  <span class="person"></span>
  <ul>
    <li class="friends">one</li>
    <li class="friends">two</li>
    <li class="friends">three</li>
  </ul>
</div>