From 1d48f145a557a627d5bc88c6f415a0f3fd1f6a20 Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Wed, 10 Jan 2024 23:58:06 +0900
Subject: [PATCH] refactor

---
 src/subtags.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/subtags.rs b/src/subtags.rs
index 9127c31..b07e6a5 100644
--- a/src/subtags.rs
+++ b/src/subtags.rs
@@ -11,7 +11,7 @@ pub fn language_subtag(subtag: &str) -> Result<&str, ParserError> {
   // https://unicode.org/reports/tr35/#unicode_language_subtag
 
   // 'root' is a special case
-  if LANG_ROOT.eq(subtag) {
+  if matches!(subtag, LANG_ROOT) {
     return Ok(LANG_EMPTY);
   }
 
@@ -19,7 +19,7 @@ pub fn language_subtag(subtag: &str) -> Result<&str, ParserError> {
     return Err(ParserError::InvalidLanguage);
   }
 
-  if LANG_UND == subtag {
+  if matches!(subtag, LANG_UND) {
     Ok(LANG_EMPTY)
   } else {
     Ok(subtag)