정규식 문법 https://chrisjune-13837.medium.com/%EC%A0%95%EA%B7%9C%EC%8B%9D-%ED%8A%9C%ED%86%A0%EB%A6%AC%EC%96%BC-%EC%98%88%EC%A0%9C%EB%A5%BC-%ED%86%B5%ED%95%9C-cheatsheet-%EB%B2%88%EC%97%AD-61c3099cdca8
vscode에서 사용 https://simryang.tistory.com/entry/vscode-%EA%B2%80%EC%83%89-%EC%A0%95%EA%B7%9C%EC%8B%9D
https://jojoldu.tistory.com/555
