From a89a4d0760240e8b9ef6fd272b1f3f9da769d530 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Sun, 7 Jul 2024 15:08:09 -0400
Subject: [PATCH] Avoid stacktrace on undo in 'nomodifiable' buffer

References: https://github.com/tpope/vim-repeat
---
 autoload/repeat.vim | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/autoload/repeat.vim b/autoload/repeat.vim
index a7a6919..1144f60 100644
--- a/autoload/repeat.vim
+++ b/autoload/repeat.vim
@@ -125,16 +125,13 @@ endfunction
 
 function! repeat#wrap(command,count)
     let preserve = (g:repeat_tick == b:changedtick)
-    call feedkeys((a:count ? a:count : '').a:command, 'ntix')
-    if preserve
-        let g:repeat_tick = b:changedtick
-    endif
+    return (a:count ? a:count : '') . a:command . (preserve ? ":let g:repeat_tick = b:changedtick\r" : '')
 endfunction
 
 nnoremap <silent> <Plug>(RepeatDot)      :<C-U>if !repeat#run(v:count)<Bar>echoerr repeat#errmsg()<Bar>endif<CR>
-nnoremap <silent> <Plug>(RepeatUndo)     :<C-U>call repeat#wrap('u',v:count)<CR>
-nnoremap <silent> <Plug>(RepeatUndoLine) :<C-U>call repeat#wrap('U',v:count)<CR>
-nnoremap <silent> <Plug>(RepeatRedo)     :<C-U>call repeat#wrap("\<Lt>C-R>",v:count)<CR>
+nmap <silent><expr><script> <Plug>(RepeatUndo)     repeat#wrap('u',v:count)
+nmap <silent><expr><script> <Plug>(RepeatUndoLine) repeat#wrap('U',v:count)
+nmap <silent><expr><script> <Plug>(RepeatRedo)     repeat#wrap("\022",v:count)
 
 if !hasmapto('<Plug>(RepeatDot)', 'n')
     nmap . <Plug>(RepeatDot)