linkify urls in templates-nodejs

Think my query was clear from the title itself. How can I link url strings with href attributes while rendering in ejs templates? Do any helpers exist for this task? I thought of converting urls to strings right along with their href attributes and then send them to templates but I guess they will then be escaped while rendering.

Even though I am using ejs for views..I wanna change the template engine if any other has this linking facility.

Update:

suppose this is the render function

return res.render("polo", {
                    title: "Posters",
                    has_next:false,
                    posters:posters,
                    offset:0
                });

and here is the view

<% for (var i=0;i<posters.length;i++) { %>

                <div id="<%=posters[i]._id %>" class="newstitle">

                <p>
                <%=posters[i].body %>
            </p>
            </div>

<% }; %>

Now if posters[1].body="Hello this is a good site. www.google.com" .Similarly every other element in poster array is some text which contains some urls. when posters[i].body is rendered i want the urls like "google.com" in above example to be linked. I cant use <%= url %> because I dont know where exactly the url is inside poster.body.