From 1f3c49e6ace7ca22814d1f292605671895fe1567 Mon Sep 17 00:00:00 2001
From: Uwe Klotz <uwe.klotz@gmail.com>
Date: Sat, 14 Jan 2023 13:54:56 +0100
Subject: [PATCH] id3v2: Use is_ascii_alphabetic() instead of lowercase +
 uppercase

---
 src/id3/v2/items/language_frame.rs | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/id3/v2/items/language_frame.rs b/src/id3/v2/items/language_frame.rs
index b9b27072..dab7e336 100644
--- a/src/id3/v2/items/language_frame.rs
+++ b/src/id3/v2/items/language_frame.rs
@@ -42,12 +42,7 @@ impl LanguageFrame {
 	pub fn as_bytes(&self) -> Result<Vec<u8>> {
 		let mut bytes = vec![self.encoding as u8];
 
-		if self.language.len() != 3
-			|| self
-				.language
-				.iter()
-				.any(|c| !c.is_ascii_lowercase() && !c.is_ascii_uppercase())
-		{
+		if self.language.len() != 3 || self.language.iter().any(|c| !c.is_ascii_alphabetic()) {
 			return Err(ID3v2Error::new(ID3v2ErrorKind::Other(
 				"Invalid frame language found (expected 3 ascii characters)",
 			))