Add a #with helper

lib/handlebars/compiler.js

@@ -99,6 +99,10 @@ Handlebars.registerHelper('if', function(context, fn, inverse) {
   }
 });
 
+Handlebars.registerHelper('with', function(context, fn) {
+  return fn(context);
+});
+
 Handlebars.logger = {
   DEBUG: 0, INFO: 1, WARN: 2, ERROR: 3, level: 3,
 

spec/qunit_spec.js

@@ -486,4 +486,12 @@ test("if a context is not found, helperMissing is used", function() {
   var context = { hello: "Hello", world: "world" };
 
   shouldCompileTo(string, context, "Hello <a>world</a>")
-})
+});
+
+module("built-in helpers");
+
+test("with", function() {
+  var string = "{{#with person}}{{first}} {{last}}{{/with}}";
+
+  shouldCompileTo(string, {person: {first: "Alan", last: "Johnson"}}, "Alan Johnson");
+});