commit https://github.com/vim/vim/commit/d807036d10615b960c814ef3890ecad335b57f56 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Feb 15 21:56:54 2016 +0100 patch 7.4.1324 Problem: Channels with pipes don't work on MS-Windows. Solution: Add pipe I/O support. (Yasuhiro Matsumoto)

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