ESM: Added remaining ByteRepr operations.

src/core/operations/FromCharcode.mjs

@@ -0,0 +1,80 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import {DELIM_OPTIONS} from "../lib/Delim";
+
+/**
+ * From Charcode operation
+ */
+class FromCharcode extends Operation {
+
+    /**
+     * FromCharcode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "From Charcode";
+        this.module = "Default";
+        this.description = "Converts unicode character codes back into text.<br><br>e.g. <code>0393 03b5 03b9 03ac 20 03c3 03bf 03c5</code> becomes <code>Γειά σου</code>";
+        this.inputType = "string";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Delimiter",
+                "type": "option",
+                "value": DELIM_OPTIONS
+            },
+            {
+                "name": "Base",
+                "type": "number",
+                "value": 16
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const delim = Utils.charRep(args[0] || "Space"),
+            base = args[1];
+        let bites = input.split(delim),
+            i = 0;
+
+        if (base < 2 || base > 36) {
+            throw "Error: Base argument must be between 2 and 36";
+        }
+
+        if (input.length === 0) {
+            return [];
+        }
+
+        if (base !== 16 && ENVIRONMENT_IS_WORKER()) self.setOption("attemptHighlight", false);
+
+        // Split into groups of 2 if the whole string is concatenated and
+        // too long to be a single character
+        if (bites.length === 1 && input.length > 17) {
+            bites = [];
+            for (i = 0; i < input.length; i += 2) {
+                bites.push(input.slice(i, i+2));
+            }
+        }
+
+        let latin1 = "";
+        for (i = 0; i < bites.length; i++) {
+            latin1 += Utils.chr(parseInt(bites[i], base));
+        }
+        return Utils.strToByteArray(latin1);
+    }
+
+}
+
+export default FromCharcode;