patch 8.2.4899: with latin1 encoding CTRL-W might go before the cmdline Commit: https://github.com/vim/vim/commit/ef02f16609ff0a26ffc6e20263523424980898fe Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 7 10:49:10 2022 +0100 patch 8.2.4899: with latin1 encoding CTRL-W might go before the cmdline Problem: With latin1 encoding CTRL-W might go before the start of the command line. Solution: Check already being at the start of the command line.

Test for writing and reading a file of over 100 Kbyte

1 line: "This is the start"
3001 lines: "This is the leader"
1 line: "This is the middle"
3001 lines: "This is the trailer"
1 line: "This is the end"

STARTTEST
:%d
aThis is the start
This is the leader
This is the middle
This is the trailer
This is the endkY3000p2GY3000p
:w! Xtest
:%d
:e! Xtest
:.w! test.out
3003G:.w >>test.out
6005G:.w >>test.out
:qa!
ENDTEST