patch 9.0.0916: getbufline() is inefficient for getting a single line Commit: https://github.com/vim/vim/commit/ce30ccc06af7f2c03762e5b18dde37b26ea6ec42 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Nov 21 19:57:04 2022 +0000 patch 9.0.0916: getbufline() is inefficient for getting a single line Problem: getbufline() is inefficient for getting a single line. Solution: Add getbufoneline().

Tests for complicated + argument to :edit command

STARTTEST
:$-1w! Xfile1
:$w! Xfile2
:edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
:w! test.out
:e Xfile1
:w >> test.out
:qa!
ENDTEST

The result should be in Xfile1: "fooPIPEbar", in Xfile2: "fooSLASHbar"
foo|bar
foo/bar