From ebff7467cbfaede80642e8e7c13725ebb373ec7b Mon Sep 17 00:00:00 2001
From: joveian <darkstar@city-net.com>
Date: Thu, 12 Jan 2023 14:46:43 -0800
Subject: [PATCH] Warn of any unicode replacement characters

Unicode replacement characters mean --check is not able to check the file so warn when generating them.  This time with NAME.

Fixes issue #281
---
 b3sum/src/main.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/b3sum/src/main.rs b/b3sum/src/main.rs
index 91a87a1..7193c6c 100644
--- a/b3sum/src/main.rs
+++ b/b3sum/src/main.rs
@@ -340,6 +340,9 @@ fn filepath_to_string(filepath: &Path) -> FilepathString {
         filepath_string = filepath_string.replace('\\', "\\\\").replace('\n', "\\n");
         is_escaped = true;
     }
+    if filepath_string.contains('�') {
+        eprintln!("{}: {}: must be valid unicode and not contain '�' for --check", NAME, filepath_string);
+    }
     FilepathString {
         filepath_string,
         is_escaped,