commit	1bfc56b06d57770456d6d55cfb43dec6a075cc13	[log] [tgz]
author	Haibo Huang <hhb@google.com>	Fri Sep 11 03:46:30 2020 +0000
committer	Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>	Fri Sep 11 03:46:30 2020 +0000
tree	171a8d477ac6d8882dfb1db3c4a3c4a6a4c6d1e5
parent	0ddc5c98d70bce96f3e0e5d7937b5315c38ceb89 [diff]
parent	abc255adf08eda187565c702a309f597f1e3666e [diff]

tree: 171a8d477ac6d8882dfb1db3c4a3c4a6a4c6d1e5

README.md

unicode-width

Determine displayed width of char and str types according to Unicode Standard Annex #11 rules.

extern crate unicode_width;

use unicode_width::UnicodeWidthStr;

fn main() {
    let teststr = "Ｈｅｌｌｏ, ｗｏｒｌｄ!";
    let width = UnicodeWidthStr::width(teststr);
    println!("{}", teststr);
    println!("The above string is {} columns wide.", width);
    let width = teststr.width_cjk();
    println!("The above string is {} columns wide (CJK).", width);
}

NOTE: The computed width values may not match the actual rendered column width. For example, the woman scientist emoji comprises of a woman emoji, a zero-width joiner and a microscope emoji.

extern crate unicode_width;
use unicode_width::UnicodeWidthStr;

fn main() {
    assert_eq!(UnicodeWidthStr::width("👩"), 2); // Woman
    assert_eq!(UnicodeWidthStr::width("🔬"), 2); // Microscope
    assert_eq!(UnicodeWidthStr::width("👩‍🔬"), 4); // Woman scientist
}

See Unicode Standard Annex #11 for precise details on what is and isn't covered by this crate.

features

unicode-width does not depend on libstd, so it can be used in crates with the #![no_std] attribute.

crates.io

You can use this package in your project by adding the following to your Cargo.toml:

[dependencies]
unicode-width = "0.1.7"