Inescapable Bafflegab in Vim

Assume that your vimrc has the following settings.

set encoding=utf-8
set termencoding=utf-8
set fileencodings=ucs-bom,euc-jp,cp932,iso-2022-jp

If you write the following phrase and save it,

カナサンスゴイ

and then you will see a bafflegab after re-open the file by :e. (You can resolve the bafflegab by :e ++enc=utf8.)

If there's other good words, for example 'あ', bafflegab will never appear.

Solution

Of course nobody can type :e ++enc=utf8 no matter when open the file. There are two easy solutions.

• Add BOM. :setl bomb and :w.
• Add other words if it's possible.

Note that modeline won't help the problem.