Some wide characters are not correctly displayed #4
Description
It seems that some of the Chinese characters are not displayed.
Let's take the hello world for example. Here's a script:
https://gist.github.com/qhwa/7ef65acb13ec656cc13d7418d066cfcc
when mix run it, the expected output will be:
Hello, World! 你好世界!Whilst the current output is
Hello, World! 你世!Looks like characters at even positions are missing.
Do you happen to have any idea how I can fix it?
FYI. I tried termbox the C program and confirms it works with Chinese characters.
UPDATE:
After some digging, I realize it is an issue with ratatouille on calculating positions. It is an issue about wide characters including CJK, full-width Unicode characters and some emojis. It can be fixed with a small patch calculating character width. On my local machine, I have got it working properly at least for some Chinese characters. I can make a pull request on it if it makes sense to you. :)