East Asian Multibyte Character Piles Up in Vim/iTerm2/OS X Environment

Multibyte characters were piling up to each other in my vim on iTerm2 like above.

Here’s how to fix this.

vim setting

Add the following line to .vimrc

~/.vimrc

1

set ambiwidth=double

It’s telling vim to double the width of characters having Ambiguous Character Width.

iTerm2 setting

Tick the checkbox and tell iTerm2 to do the same.

That’s it, fixed!