ESM: Ported RegEx operations

src/core/operations/FindReplace.mjs

@@ -0,0 +1,86 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+
+/**
+ * Find / Replace operation
+ */
+class FindReplace extends Operation {
+
+    /**
+     * FindReplace constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Find / Replace";
+        this.module = "Regex";
+        this.description = "Replaces all occurrences of the first string with the second.<br><br> Includes support for regular expressions (regex), simple strings and extended strings (which support \\n, \\r, \\t, \\b, \\f and escaped hex bytes using \\x notation, e.g. \\x00 for a null byte).";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Find",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Regex", "Extended (\\n, \\t, \\x...)", "Simple string"]
+            },
+            {
+                "name": "Replace",
+                "type": "binaryString",
+                "value": ""
+            },
+            {
+                "name": "Global match",
+                "type": "boolean",
+                "value": true
+            },
+            {
+                "name": "Case insensitive",
+                "type": "boolean",
+                "value": false
+            },
+            {
+                "name": "Multiline matching",
+                "type": "boolean",
+                "value": true
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [{option: type}, replace, g, i, m] = args;
+        let find = args[0].string,
+            modifiers = "";
+
+        if (g) modifiers += "g";
+        if (i) modifiers += "i";
+        if (m) modifiers += "m";
+
+        if (type === "Regex") {
+            find = new RegExp(find, modifiers);
+            return input.replace(find, replace);
+        }
+
+        if (type.indexOf("Extended") === 0) {
+            find = Utils.parseEscapedChars(find);
+        }
+
+        find = new RegExp(Utils.escapeRegex(find), modifiers);
+
+        return input.replace(find, replace);
+    }
+
+}
+
+export default FindReplace;