commit	401be391dd3f1e735ba9562ad59b110e579b9000	[log] [tgz]
author	android-build-team Robot <[email protected]>	Thu Feb 18 02:05:47 2021 +0000
committer	android-build-team Robot <[email protected]>	Thu Feb 18 02:05:47 2021 +0000
tree	0c972b8768dec8097b2470d65a90d403559ec404
parent	7f1d19e178ddb8c99838bcc316c616cb38e58e02 [diff]
parent	8e0eb5bb0ac36ed9e8089bfd3bc8c04559ce0c07 [diff]

tree: 0c972b8768dec8097b2470d65a90d403559ec404

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"