comman!-narg=* Xexpr <mods>lex<args> auto BufReadPre * exe"sn" ..expand("<abuf>") fu Xautocmd_changelist() cal writefile(['Xtestfile2:4:4'],'Xerr') sil! edi Xerr Xexpr 'Xtestfile:4:4' endf call Xautocmd_changelist() call Xautocmd_changelist()