ESM: Port Extract.js module

src/core/operations/ExtractDomains.mjs

@@ -0,0 +1,49 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { search } from "../lib/Extract";
+
+/**
+ * Extract domains operation
+ */
+class ExtractDomains extends Operation {
+
+    /**
+     * ExtractDomains constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Extract domains";
+        this.module = "Regex";
+        this.description = "Extracts domain names.<br>Note that this will not include paths. Use <strong>Extract URLs</strong> to find entire URLs.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Display total",
+                "type": "boolean",
+                "value": "Extract.DISPLAY_TOTAL"
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const displayTotal = args[0],
+            regex = /\b((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,63}\b/ig;
+
+        return search(input, regex, null, displayTotal);
+    }
+
+}
+
+export default ExtractDomains;