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src/core/operations/gaijinatPrependAppend.mjs

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+/**
+ * @author gaijinat [web@gaijin.at]
+ * @copyright Crown Copyright 2023
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Utils from "../Utils.mjs";
+
+/**
+ * Prepend / Append operation
+ */
+class PrependAppend extends Operation {
+
+    /**
+     * PrependAppend constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Prepend / Append";
+        this.module = "Default";
+        this.description = "Adds the specified text to the beginning and/or end of each line, character or the entire input.<br><br>Includes support for 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.infoURL = "";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Prepend",
+                type: "toggleString",
+                value: "",
+                toggleValues: ["Simple string", "Extended (\\n, \\t, \\x...)"]
+            },
+            {
+                name: "Append",
+                type: "toggleString",
+                value: "",
+                toggleValues: ["Simple string", "Extended (\\n, \\t, \\x...)"]
+            },
+            {
+                name: "Apply to",
+                type: "option",
+                value: ["Input", "Lines", "Characters"],
+                defaultIndex: 1
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [{option: typePrepend}, {option: typeAppend}, applyTo] = args;
+        let [{string: strPrepend}, {string: strAppend}] = args;
+        let output = "";
+        let joinChar = "";
+
+        if (typePrepend.startsWith("Extended")) strPrepend = Utils.parseEscapedChars(strPrepend);
+        if (typeAppend.startsWith("Extended")) strAppend = Utils.parseEscapedChars(strAppend);
+
+        if (applyTo === "Input") {
+            output = strPrepend + input + strAppend;
+        } else {
+            if (applyTo === "Lines") {
+                input = input.split("\n");
+                joinChar = "\n";
+            }
+            for (let i = 0; i < input.length; i++) {
+                output += strPrepend + input[i] + strAppend + joinChar;
+            }
+        }
+
+        if (joinChar.length > 0) output = output.slice(0, output.length - joinChar.length);
+        return output;
+    }
+
+}
+
+export default PrependAppend;