From b8295ac8f59e0ab1654b746a390e55935179e07d Mon Sep 17 00:00:00 2001
From: Wolfsblvt <wolfsblvt@gmx.de>
Date: Fri, 28 Jun 2024 03:01:33 +0200
Subject: [PATCH] Unregister function for macro registration

---
 public/script.js         |  1 +
 public/scripts/macros.js | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/public/script.js b/public/script.js
index 8d5da9ae5..8b7b8d8f9 100644
--- a/public/script.js
+++ b/public/script.js
@@ -7800,6 +7800,7 @@ window['SillyTavern'].getContext = function () {
          */
         registerHelper: () => { },
         registerMacro: MacrosParser.registerMacro.bind(MacrosParser),
+        unregisterMacro: MacrosParser.unregisterMacro.bind(MacrosParser),
         registedDebugFunction: registerDebugFunction,
         /**
          * @deprecated Use renderExtensionTemplateAsync instead.
diff --git a/public/scripts/macros.js b/public/scripts/macros.js
index 992150894..ecdb453c6 100644
--- a/public/scripts/macros.js
+++ b/public/scripts/macros.js
@@ -58,6 +58,30 @@ export class MacrosParser {
         this.#macros.set(key, value);
     }
 
+    /**
+     * Unregisters a global macro with the given key
+     *
+     * @param {string} key Macro name (key)
+     */
+    static unregisterMacro(key) {
+        if (typeof key !== 'string') {
+            throw new Error('Macro key must be a string');
+        }
+
+        // Allowing surrounding whitespace would just create more confusion...
+        key = key.trim();
+
+        if (!key) {
+            throw new Error('Macro key must not be empty or whitespace only');
+        }
+
+        const deleted = this.#macros.delete(key);
+
+        if (!deleted) {
+            console.warn(`Macro ${key} was not registered`);
+        }
+    }
+
     /**
      * Populate the env object with macro values from the current context.
      * @param {EnvObject} env Env object for the current evaluation context