patch 8.2.2511: Vim9: cannot use Vim9 script syntax in some places Commit: https://github.com/vim/vim/commit/39f3b1411068ff187b4f9f482b2d6b2c1e7a7268 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 14 12:57:36 2021 +0100 patch 8.2.2511: Vim9: cannot use Vim9 script syntax in some places Problem: Vim9: cannot use Vim9 script syntax in some places. Solution: Add the :vim9cmd command modifier. Incompatible: Makes ":vim9" mean ":vim9cmd" instead of ":vim9script".

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