fix root node templating around whitespace

Author: uniphil

parse.js

@@ -227,10 +227,11 @@ var failOnBadTokens = function(tokens) {
 
 
 var pullRoot = function(tokens) {
-  var template = R.repeatN('#', tokens.length || 0).join('');
+  var template = '';
   if (lex.check(tokens[0], {token: 'space'})) {
     template = tokens.shift().repr + template;
   }
+  template += R.repeatN('#', tokens.length || 0).join('');
   return astNode('expr', tokens, {template: template});
 };
 

test.js

@@ -323,6 +323,9 @@ describe('Parser', function() {
 
 describe('Echo compiler', function() {
   describe('on simple minimal-node ASTs', function() {
+    it('should work on just whitespace', function() {
+      assert.equal(compileE(' '), ' ');
+    });
     it('should work for literals', function() {
       assert.equal(compileE('1'), '1');
     });