beer

diff --git a/crates/beer-protocols/src/codec.rs b/crates/beer-protocols/src/codec.rsindex 1fe38e3..05cf144 100644--- a/crates/beer-protocols/src/codec.rs+++ b/crates/beer-protocols/src/codec.rs@@ -75,22 +75,27 @@ pub fn decode_hex(s: &[u8]) -> Option<Vec<u8>> {     if s.is_empty() || !s.len().is_multiple_of(2) {         return None;     }-    let nibble = |b: u8| (b as char).to_digit(16).map(|d| d as u8);+     s.chunks_exact(2)-        .map(|pair| Some((nibble(pair[0])? << 4) | nibble(pair[1])?))+        .map(|pair| Some((hex_nibble(pair[0])? << 4) | hex_nibble(pair[1])?))         .collect() } +/// Turn a hexadecimal character into its numerical value.+fn hex_nibble(b: u8) -> Option<u8> {+    (b as char).to_digit(16).map(|d| d as u8)+}+ /// Percent-decode `%XX` byte escapes in a URI path, passing other bytes through. pub fn percent_decode(s: &[u8]) -> Vec<u8> {     let mut out = Vec::with_capacity(s.len());     let mut i = 0;     while i < s.len() {         if s[i] == b'%' && i + 2 < s.len() {-            let hi = (s[i + 1] as char).to_digit(16);-            let lo = (s[i + 2] as char).to_digit(16);+            let hi = hex_nibble(s[i + 1]);+            let lo = hex_nibble(s[i + 2]);             if let (Some(hi), Some(lo)) = (hi, lo) {-                out.push((hi * 16 + lo) as u8);+                out.push(hi << 4 | lo);                 i += 3;                 continue;             }