From ac5d71625ed978e552d16be44b739e2f9a1e8e6f Mon Sep 17 00:00:00 2001
From: Hadrien G <knights_of_ni@gmx.com>
Date: Sat, 5 May 2018 17:38:56 +0200
Subject: [PATCH] Use unknown char marker for out-of-range chars

The empty string "" translation is a bit unfortunate as it loses information. Although it cannot always be easily avoided, in the case of out-of-range characters it seems easy to do so.
---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index d766bc2..2392de4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -69,5 +69,5 @@ pub fn unidecode(s: &str) -> String {
 /// ```
 #[inline]
 pub fn unidecode_char(ch: char) -> &'static str {
-    MAPPING.get(ch as usize).map(|&s| s).unwrap_or("")
+    MAPPING.get(ch as usize).map(|&s| s).unwrap_or("[?]")
 }