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|barfoo/bar