From b319356a08ee059fd4c3fbcc7242b2d8712fa420 Mon Sep 17 00:00:00 2001
From: Jules Aguillon
Date: Wed, 10 Jan 2024 00:17:09 +0100
Subject: Fix crash on shift with empty keys

Tapping shift might call `Utils.capitalize_string` on some symbols
(notably custom keys), which crashes on empty string.

This also happens on builtin layouts with `key1="\"`.
---
 srcs/juloo.keyboard2/Utils.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/srcs/juloo.keyboard2/Utils.java b/srcs/juloo.keyboard2/Utils.java
index 28bd9e3..0eee945 100644
--- a/srcs/juloo.keyboard2/Utils.java
+++ b/srcs/juloo.keyboard2/Utils.java
@@ -12,6 +12,8 @@ class Utils
   /** Turn the first letter of a string uppercase. */
   public static String capitalize_string(String s)
   {
+    if (s.length() < 1)
+      return s;
     // Make sure not to cut a code point in half
     int i = s.offsetByCodePoints(0, 1);
     return s.substring(0, i).toUpperCase() + s.substring(i);
-- 
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