add other flowcontrol ops. Update tests

src/core/operations/ConditionalJump.mjs

@@ -0,0 +1,89 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Dish from "../Dish";
+import { getLabelIndex } from "../lib/FlowControl";
+
+/**
+ * Conditional Jump operation
+ */
+class ConditionalJump extends Operation {
+
+    /**
+     * ConditionalJump constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Conditional Jump";
+        this.flowControl = true;
+        this.module = "Default";
+        this.description = "Conditionally jump forwards or backwards to the specified Label  based on whether the data matches the specified regular expression.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Match (regex)",
+                "type": "string",
+                "value": ""
+            },
+            {
+                "name": "Invert match",
+                "type": "boolean",
+                "value": false
+            },
+            {
+                "name": "Label name",
+                "type": "shortString",
+                "value": ""
+            },
+            {
+                "name": "Maximum jumps (if jumping backwards)",
+                "type": "number",
+                "value": 10
+            }
+        ];
+    }
+
+    /**
+     * Conditional Jump operation.
+     *
+     * @param {Object} state - The current state of the recipe.
+     * @param {number} state.progress - The current position in the recipe.
+     * @param {Dish} state.dish - The Dish being operated on.
+     * @param {Operation[]} state.opList - The list of operations in the recipe.
+     * @param {number} state.numJumps - The number of jumps taken so far.
+     * @returns {Object} The updated state of the recipe.
+     */
+    async run(state) {
+        const ings   = state.opList[state.progress].ingValues,
+            dish     = state.dish,
+            regexStr = ings[0],
+            invert   = ings[1],
+            label    = ings[2],
+            maxJumps = ings[3],
+            jmpIndex = getLabelIndex(label, state);
+
+        if (state.numJumps >= maxJumps || jmpIndex === -1) {
+            return state;
+        }
+
+        if (regexStr !== "") {
+            const str = await dish.get(Dish.STRING);
+            const strMatch = str.search(regexStr) > -1;
+            if (!invert && strMatch || invert && !strMatch) {
+                state.progress = jmpIndex;
+                state.numJumps++;
+            }
+        }
+
+        return state;
+    }
+
+}
+
+export default ConditionalJump;