Fixing Node element support

metamorpov.js

@@ -11,6 +11,7 @@ exports.translate = function(input, options) {
     options: options,
   }
 
+  try {
     if (typeof(input) == "object" && input instanceof Node) {
       request.loop = loopNode;
     }
@@ -18,7 +19,12 @@ exports.translate = function(input, options) {
       request.loop = loopString;
     }
     else {
-    console.error("Invalid input type");
+      console.error("Input of type " + typeof(input) + " is unsupported");
+      return;
+    }
+  }
+  catch {
+    console.error("Translation of Node objects is unsupported outside of a browser context");
     return;
   }
 
@@ -71,15 +77,28 @@ function loopNode(request, params, method) {
       child = node.firstChild;
       while (child) {
         next = child.nextSibling;
-        loopNode(node, params, method);
+        loopNode({
+          input: child,
+          options: request.options
+        }, params, method);
         child = next;
       }
       break;
     case 3: /* TEXT_NODE */
-      loopString(node.nodeValue, params, method);
+      loopNodeValue({
+        input: node,
+        options: request.options
+      }, params, method);
   }
 }
 
+/* Iterator for strings belonging to HTML Node elements */
+function loopNodeValue(request, params, method) {
+  if (request.input.nodeValue.match(params.regexp) == null) { return; }
+  request.input.nodeValue = method(request.input.nodeValue, params);
+  loopNodeValue(request, params, method);
+}
+
 /* Iterator for string elements */
 function loopString(request, params, method) {
   if (request.input.match(params.regexp) == null) { return; }