commit	40f0c88d3d61526c694347e05c124462f2e51904	[log] [tgz]
author	Chih-Hung Hsieh <chh@google.com>	Wed Jul 22 02:05:04 2020 +0000
committer	Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>	Wed Jul 22 02:05:04 2020 +0000
tree	6d2b1a1b7f120c766ce2a805fdfa362a65737689
parent	3bfefd5d00a8e720473bba260eb81a67c1d89233 [diff]
parent	cda8d0ab06d327531fdc0d30138d5319f0cbb328 [diff]

tree: 6d2b1a1b7f120c766ce2a805fdfa362a65737689

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"