From 07c883a5418028bbb48b38d6a2cf86d011de4b1b Mon Sep 17 00:00:00 2001
From: Stefan Huber <shuber@sthu.org>
Date: Sat, 18 Dec 2021 20:22:05 +0100
Subject: [PATCH] keymaps: Smart vsplit direction for fsswitch

---
 keymaps.vim | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/keymaps.vim b/keymaps.vim
index 4569a4a..bc6f51d 100644
--- a/keymaps.vim
+++ b/keymaps.vim
@@ -39,7 +39,20 @@ nmap ga <Plug>(EasyAlign)
 
 au Filetype gnuplot map <buffer> <F5> :call OpenIn("gnuplot -persist") <CR>
 
-au Filetype c,cpp,objc map <buffer> <F11> :vsplit<CR>:FSRight<CR>
+" Performs a vertial split and a FSHere. For a header file the split is
+" performed to the left, for an implementation file to the right.
+function FSvsplit()
+    " We split to the right on header files
+    if match(expand('%:e'), 'h.*') >= 0
+        execute ':leftabove vsplit'
+    else
+        execute ':rightbelow vsplit'
+    endif
+
+    execute ':FSHere'
+endfunction
+
+au Filetype c,cpp,objc map <buffer> <F11> :call FSvsplit()<CR>
 " Terminal-based vi report S-F11 as F23
 au Filetype c,cpp,objc map <buffer> <S-F11> :FSHere<CR>
 au Filetype c,cpp,objc map <buffer> <F23> :FSHere<CR>
-- 
2.39.5