Wrong graphemes length of 🤦🏼‍♂️ emoji

[weihanglo]

I read this post and found that segmentation over this emoji is wrong due to new rule of ZERO WIDTH JOINER. Concerning I have only little knowledge about Unicode, is there anything I can help?

Reproducible Demo

Playground Link

use unicode_segmentation::UnicodeSegmentation;

fn main() {
	let s = "🤦🏼‍♂️";
	println!("{}", s.graphemes(true).count());
	println!("{}", s.chars().count());
	println!("{}", s.encode_utf16().count());
	println!("{}", s.len());
}

// 2 <---- should be 1
// 5
// 7
// 17

[Manishearth]

This crate needs an update. #43