Add StringUtils.escapeMarkdown()

Author: KevinNovak

.vscode/settings.json

@@ -37,6 +37,7 @@
         "respawn",
         "respawned",
         "restjson",
+        "unescapes",
         "varchar"
     ],
     "typescript.preferences.importModuleSpecifierEnding": "js"

src/utils/string-utils.ts

@@ -1,3 +1,4 @@
+import { escapeMarkdown } from 'discord.js';
 import removeMarkdown from 'remove-markdown';
 
 export class StringUtils {
@@ -14,6 +15,22 @@ export class StringUtils {
         return output;
     }
 
+    public static escapeMarkdown(input: string): string {
+        return (
+            escapeMarkdown(input)
+                // Unescapes custom emojis
+                // TODO: Update once discord.js update their escapeMarkdown()
+                // See https://github.com/discordjs/discord.js/issues/8943
+                .replaceAll(
+                    /<(a?):(\S+):(\d{17,20})>/g,
+                    (_match, animatedPrefix, emojiName, emojiId) => {
+                        let emojiNameUnescaped = emojiName.replaceAll(/\\/g, '');
+                        return `<${animatedPrefix}:${emojiNameUnescaped}:${emojiId}>`;
+                    }
+                )
+        );
+    }
+
     public static stripMarkdown(input: string): string {
         return removeMarkdown(input);
     }