From b96e02c6492d5172e8f674503f2f27338b9f3b29 Mon Sep 17 00:00:00 2001
From: wzy <32936898+Freed-Wu@users.noreply.github.com>
Date: Mon, 29 Jun 2020 13:44:13 +0800
Subject: [PATCH] Fix bug of keyboard_layout

when `keyboard_layout==''`, `let keyboard_layout = split(keyboard_layout, '\.')[-1]` will return an error.
---
 autoload/airline/extensions/xkblayout.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/autoload/airline/extensions/xkblayout.vim b/autoload/airline/extensions/xkblayout.vim
index 65a37bb6..cede653e 100644
--- a/autoload/airline/extensions/xkblayout.vim
+++ b/autoload/airline/extensions/xkblayout.vim
@@ -9,7 +9,7 @@ endif
 
 function! airline#extensions#xkblayout#status()
   let keyboard_layout = libcall(g:XkbSwitchLib, 'Xkb_Switch_getXkbLayout', '')
-  let keyboard_layout = split(keyboard_layout, '\.')[-1]
+  let keyboard_layout = get(split(keyboard_layout, '\.'), -1, '')
   let short_codes = get(g:, 'airline#extensions#xkblayout#short_codes', {'2SetKorean': 'KR', 'Chinese': 'CN', 'Japanese': 'JP'})
 
   if has_key(short_codes, keyboard_layout)