ESM: Port Extract.js module

src/core/operations/ExtractDates.mjs

@@ -0,0 +1,52 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { search } from "../lib/Extract";
+
+/**
+ * Extract dates operation
+ */
+class ExtractDates extends Operation {
+
+    /**
+     * ExtractDates constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Extract dates";
+        this.module = "Regex";
+        this.description = "Extracts dates in the following formats<ul><li><code>yyyy-mm-dd</code></li><li><code>dd/mm/yyyy</code></li><li><code>mm/dd/yyyy</code></li></ul>Dividers can be any of /, -, . or space";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Display total",
+                "type": "boolean",
+                "value": false
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const displayTotal = args[0],
+            date1 = "(?:19|20)\\d\\d[- /.](?:0[1-9]|1[012])[- /.](?:0[1-9]|[12][0-9]|3[01])", // yyyy-mm-dd
+            date2 = "(?:0[1-9]|[12][0-9]|3[01])[- /.](?:0[1-9]|1[012])[- /.](?:19|20)\\d\\d", // dd/mm/yyyy
+            date3 = "(?:0[1-9]|1[012])[- /.](?:0[1-9]|[12][0-9]|3[01])[- /.](?:19|20)\\d\\d", // mm/dd/yyyy
+            regex = new RegExp(date1 + "|" + date2 + "|" + date3, "ig");
+
+        return search(input, regex, null, displayTotal);
+    }
+
+}
+
+export default ExtractDates;