Added operation: "JavaScript"

Operation "JavaScript" is added under category "Utils" and it adds option to write JS code to manipulate data.

src/js/config/Categories.js

@@ -162,6 +162,7 @@ var Categories = [
             "Parse UNIX file permissions",
             "Swap endianness",
             "Parse colour code",
+            "JavaScript",
         ]
     },
     {

src/js/config/OperationConfig.js

@@ -2782,5 +2782,19 @@ var OperationConfig = {
         input_type: "string",
         output_type: "string",
         args: []
-    }
+    },
+    "JavaScript": {
+        description: "Script in JavaScript",
+        run: StrUtils.run_javascript,
+        manual_bake: true,
+        input_type: "string",
+        output_type: "string",
+        args: [
+            {
+                name: "@param {string} input, @returns {string}",
+                type: "text",
+                value: "return input;"
+            },
+        ]
+    },
 };

src/js/operations/StrUtils.js

@@ -508,5 +508,25 @@ var StrUtils = {
             
         return output;
     },
+
+
+    /**
+     * Script JS.
+     *
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run_javascript: function (input, args) {
+        try {
+            /*jshint -W061 */
+            var fn = Function("input", args);
+            /*jshint +W061 */
+            return fn(input);
+        }
+        catch (err) {
+            return "JavaScript error: " + err.message;
+        }
+    },
     
 };