perf(frontend): improve nyaize performance

packages/frontend/src/scripts/nyaize.ts

@@ -3,18 +3,25 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+const enRegex1 = /(?<=n)a/gi;
+const enRegex2 = /(?<=morn)ing/gi;
+const enRegex3 = /(?<=every)one/gi;
+const koRegex1 = /[나-낳]/g;
+const koRegex2 = /(다$)|(다(?=\.))|(다(?= ))|(다(?=!))|(다(?=\?))/gm;
+const koRegex3 = /(야(?=\?))|(야$)|(야(?= ))/gm;
+
 export function nyaize(text: string): string {
 	return text
 		// ja-JP
 		.replaceAll('な', 'にゃ').replaceAll('ナ', 'ニャ').replaceAll('ﾅ', 'ﾆｬ')
 		// en-US
-		.replace(/(?<=n)a/gi, x => x === 'A' ? 'YA' : 'ya')
-		.replace(/(?<=morn)ing/gi, x => x === 'ING' ? 'YAN' : 'yan')
-		.replace(/(?<=every)one/gi, x => x === 'ONE' ? 'NYAN' : 'nyan')
+		.replace(enRegex1, x => x === 'A' ? 'YA' : 'ya')
+		.replace(enRegex2, x => x === 'ING' ? 'YAN' : 'yan')
+		.replace(enRegex3, x => x === 'ONE' ? 'NYAN' : 'nyan')
 		// ko-KR
-		.replace(/[나-낳]/g, match => String.fromCharCode(
+		.replace(koRegex1, match => String.fromCharCode(
 			match.charCodeAt(0)! + '냐'.charCodeAt(0) - '나'.charCodeAt(0),
 		))
-		.replace(/(다$)|(다(?=\.))|(다(?= ))|(다(?=!))|(다(?=\?))/gm, '다냥')
-		.replace(/(야(?=\?))|(야$)|(야(?= ))/gm, '냥');
+		.replace(koRegex2, '다냥')
+		.replace(koRegex3, '냥');
 }