Add Base94 encode and decode operations

Base94 is a notation for encoding arbitrary byte data using a restricted set of symbols and is found primarily in the finance/ATM technology space.

src/core/operations/FromBase94.mjs

@@ -0,0 +1,84 @@
+/**
+ * @author sganson@trustedsecurity.com]
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import {fromBase94} from "../lib/Base94.mjs";
+
+/**
+ * From Base94 operation
+ */
+class FromBase94 extends Operation {
+
+    /**
+     * FromBase94 constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "From Base94";
+        this.module = "Default";
+        this.description = "Base94 is a notation for encoding arbitrary byte data using a restricted set of symbols and is found primarily in the finance/ATM technology space.<br/><br/>This operation decodes an ASCII Base94 string returning a byteArray.<br/><br/>e.g. <code>@Z<[+/- >5$@3z&T!Qh*|F.q+ZWIz&#J<[+][[4+trr# </code> becomes <code>[48, 65, 6c, 6c, 6f, 20, 57, 6f, 72, 6c, 64, 21]</code><br/><br/>This is a no frills, no soft toilet paper implementation.  It's string in, byteArray out.<br/><br/>By default, input length is expected to by a multiple of 5.  Unchecking 'Strict length' will pad non mod 5 length input with space(s).<br/><br/>Base94 encoded content is expected to be in ASCII range '0x20 thru 0x7e'.  Leaving 'Remove Invalid Chars' unchecked will enforce this.";
+        this.inputType = "string";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Strict length",
+                type: "boolean",
+                value: true
+            },
+            {
+                name: "Remove Invalid Chars",
+                type: "boolean",
+                value: false
+            }
+        ];
+
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+
+        const [strictLength,removeInvalidChars] = args;
+
+        return fromBase94(input, strictLength, removeInvalidChars);
+
+    }
+
+    /**
+     * Highlight to Base94
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        pos[0].start = Math.ceil(pos[0].start / 4 * 5);
+        pos[0].end = Math.floor(pos[0].end / 4 * 5);
+        return pos;
+    }
+
+    /**
+     * Highlight from Base94
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        pos[0].start = Math.floor(pos[0].start / 5 * 4);
+        pos[0].end = Math.ceil(pos[0].end / 5 * 4);
+        return pos;
+    }
+}
+
+export default FromBase94;