patch 8.0.1426: "gf" and <cfile> don't accept ? and & in URL commit https://github.com/vim/vim/commit/9e3dfc650190e96739abc004eb9948afa68136b4 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 25 14:29:18 2017 +0100 patch 8.0.1426: "gf" and <cfile> don't accept ? and & in URL Problem: "gf" and <cfile> don't accept ? and & in URL. (Dmitrii Tcyganok) Solution: Check for a URL and allow for extra characters. (closes https://github.com/vim/vim/issues/2493)

" Tests for complicated + argument to :edit command
function Test_edit()
  call writefile(["foo|bar"], "Xfile1") 
  call writefile(["foo/bar"], "Xfile2") 
  edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
  call assert_equal(["fooPIPEbar"], readfile("Xfile1"))
  call assert_equal(["fooSLASHbar"], readfile("Xfile2"))
  call delete('Xfile1')
  call delete('Xfile2')
endfunction