From aa9b602dc67732ead5969a9765bba17b10d940e5 Mon Sep 17 00:00:00 2001
From: Innocent Onyemaenu <rockcoolsaint@gmail.com>
Date: Mon, 6 Jan 2025 22:24:35 +0100
Subject: [PATCH] In #945fcd09 we forgot to update the following:

impl fmt::Display trait for ParsePublicKeyError
impl std::error::Error for ParsePublicKeyError
---
 bitcoin/src/crypto/key.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/bitcoin/src/crypto/key.rs b/bitcoin/src/crypto/key.rs
index e51350afab..d7cb485e6a 100644
--- a/bitcoin/src/crypto/key.rs
+++ b/bitcoin/src/crypto/key.rs
@@ -1036,7 +1036,14 @@ impl fmt::Display for ParsePublicKeyError {
         use ParsePublicKeyError::*;
         match self {
             Encoding(e) => write_err!(f, "string error"; e),
-            InvalidChar(char) => write!(f, "hex error {}", char),
+            InvalidChar(err) => {
+                let printable = (b' '..=b'~').contains(&err.invalid_char());
+                if printable {
+                    write!(f, "hex error: invalid character {} at position {}", char::from(err.invalid_char()), err.pos())
+                } else {
+                    write!(f, "hex error: invalid byte 0x{:02x} at position {}", err.invalid_char(), err.pos())
+                }
+            },
             InvalidHexLength(got) =>
                 write!(f, "pubkey string should be 66 or 130 digits long, got: {}", got),
         }
@@ -1050,7 +1057,8 @@ impl std::error::Error for ParsePublicKeyError {
 
         match self {
             Encoding(e) => Some(e),
-            InvalidChar(_) | InvalidHexLength(_) => None,
+            InvalidChar(err) => Some(err),
+            InvalidHexLength(_) => None,
         }
     }
 }