Fixing Node element support

metamorpov-test.js

@@ -57,6 +57,9 @@ const options = {
   }
 }
 
+/* Invalid input */
+metamorpov.translate({}, options.firstPerson);
+
 /* vrb, vrn */
 assert.equal(metamorpov.translate("vrb/be/", options.firstPerson), "was");               // I was
 assert.equal(metamorpov.translate("vrb/be/", options.secondPerson), "were");             // You were
@@ -208,5 +211,3 @@ assert.equal(metamorpov.translate("a/an pear", options.firstPerson), "a pear");
 assert.equal(metamorpov.translate("a/an apple", options.firstPerson), "an apple");         // Starts with a vowel sound
 assert.equal(metamorpov.translate("a/an hour", options.firstPerson), "an hour");           // Starts with a vowel sound despite consonant letter
 assert.equal(metamorpov.translate("a/an 1800s-era", options.firstPerson), "an 1800s-era"); // "Eighteen-hundreds" starts with a vowel sound
-
-console.log("Test succeeded");

metamorpov.js

@@ -11,14 +11,20 @@ exports.translate = function(input, options) {
     options: options,
   }
 
-  if (typeof(input) == "object" && input instanceof Node) {
-    request.loop = loopNode;
+  try {
+    if (typeof(input) == "object" && input instanceof Node) {
+      request.loop = loopNode;
+    }
+    else if (typeof(input) == "string") {
+      request.loop = loopString;
+    }
+    else {
+      console.error("Input of type " + typeof(input) + " is unsupported");
+      return;
+    }
   }
-  else if (typeof(input) == "string") {
-    request.loop = loopString;
-  }
-  else {
-    console.error("Invalid input type");
+  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; }

package.json

@@ -9,7 +9,7 @@
   },
   "author": "Jean Viscogliosi-Pate",
   "license": "GPL-3.0-or-later",
-  "devDependencies": {
+  "dependencies": {
     "english-verbs-gerunds": "^3.4.0",
     "english-verbs-helper": "^3.4.0",
     "english-verbs-irregular": "^3.4.0",