Replace is-url-superb by valid-url

lib/isUrl.js

@@ -0,0 +1,23 @@
+/*
+  Copyright © 2018 Andrew Powell
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of this Source Code Form.
+*/
+const { isWebUri } = require('valid-url');
+
+const isUrl = (url) => {
+  let toValidate = url;
+
+  if (url.startsWith('//')) {
+    toValidate = `http:${url}`;
+  }
+
+  return Boolean(isWebUri(toValidate));
+};
+
+module.exports = { isUrl };

lib/nodes/Word.js

@@ -9,8 +9,8 @@
   included in all copies or substantial portions of this Source Code Form.
 */
 const colors = require('color-name');
-const isUrl = require('is-url-superb');
 
+const { isUrl } = require('../isUrl');
 const { registerWalker } = require('../walker');
 
 const Node = require('./Node');

package.json

@@ -31,9 +31,8 @@
   ],
   "dependencies": {
     "color-name": "^1.1.4",
-    "is-url-superb": "^3.0.0",
     "postcss": "^7.0.5",
-    "url-regex": "^5.0.0"
+    "valid-url": "^1.0.9"
   },
   "devDependencies": {
     "ava": "^3.5.1",