misc: Improve util.toTitleCase (#201)

* Improve util.toTitleCase
Allows defining custom strings for toTitleCase

* Requested changes

* Suggested changes x2

* kyra's suggestion

CHANGELOG.md

@@ -13,6 +13,7 @@ NOTE: For the contributors, you add new entries to this document following this
 
 ### Added
 
+- [[#201](https://github.com/dirigeants/klasa/pull/201)] Improve `util.toTitleCase`. (KingDGrizzle)
 - [[#186](https://github.com/dirigeants/klasa/pull/186)] Added a **load** command. (kyranet)
 - [[#176](https://github.com/dirigeants/klasa/pull/176)] Added `categorychannel` type to `ArgResolver`. (kyranet)
 - [[#166](https://github.com/dirigeants/klasa/pull/166)] Added support for TypeScript's `export default` in the loader. (kyranet)

src/lib/util/util.js

@@ -62,7 +62,7 @@ class Util {
 	 * @returns {string}
 	 */
 	static toTitleCase(str) {
-		return str.replace(/[A-Za-zÀ-ÖØ-öø-ÿ]\S*/g, (txt) => txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase());
+		return str.replace(/[A-Za-zÀ-ÖØ-öø-ÿ]\S*/g, (txt) => Util.titleCaseVariants[txt] || txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase());
 	}
 
 	/**
@@ -371,4 +371,17 @@ Util.exec = promisify(exec);
  */
 Util.sleep = promisify(setTimeout);
 
+/**
+ * Object with certain title case variants for words
+ * @since 0.5.0
+ * @type {Object}
+ * @static
+ */
+Util.titleCaseVariants = {
+	textchannel: 'TextChannel',
+	voicechannel: 'VoiceChannel',
+	categorychannel: 'CategoryChannel',
+	guildmember: 'GuildMember'
+};
+
 module.exports = Util;

typings/index.d.ts

@@ -1297,6 +1297,8 @@ declare module 'klasa' {
 		public static toTitleCase(str: string): string;
 		public static tryParse(value: string): object;
 		private static initClean(client: KlasaClient): void;
+
+		public static titleCaseVariants: TitleCaseVariants;
 	}
 
 	export { Util as util };
@@ -1918,6 +1920,14 @@ declare module 'klasa' {
 		set(value: T): void;
 	};
 
+	export type TitleCaseVariants = {
+		textchannel: 'TextChannel';
+		voicechannel: 'VoiceChannel';
+		categorychannel: 'CategoryChannel';
+		guildmember: 'GuildMember';
+		[key: string]: string;
+	};
+
 //#endregion
 
 }