From 43556a74aa5918efa2fe3320ddc41f976b8c7446 Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Fri, 18 Feb 2022 17:45:25 +0100
Subject: Fix alphabetic numbering

---
 src/library/numbering.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/library/numbering.rs b/src/library/numbering.rs
index 4a2fdbb5..f9031274 100644
--- a/src/library/numbering.rs
+++ b/src/library/numbering.rs
@@ -48,10 +48,15 @@ impl Numbering {
                     return '-'.into();
                 }
 
+                n -= 1;
+
                 let mut letters = vec![];
-                while n > 0 {
-                    letters.push(b'a' - 1 + (n % 26) as u8);
+                loop {
+                    letters.push(b'a' + (n % 26) as u8);
                     n /= 26;
+                    if n == 0 {
+                        break;
+                    }
                 }
 
                 letters.reverse();
-- 
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