tag	00793b840ef0f00d2459a9da7777b8cbec0ac58a
tagger	The Android Open Source Project <initial-contribution@android.com>	Thu May 19 16:14:53 2022 -0700
object	fb5f3ac083ad2a4a22bcb597f7df2bea2e6bff31

commit	fb5f3ac083ad2a4a22bcb597f7df2bea2e6bff31	[log] [tgz]
author	Android Build Coastguard Worker <android-build-coastguard-worker@google.com>	Thu Dec 16 00:04:34 2021 +0000
committer	Android Build Coastguard Worker <android-build-coastguard-worker@google.com>	Thu Dec 16 00:04:34 2021 +0000
tree	09396df369820670807da97f9e9f4fa4513c5749
parent	5c52c160629c3d5bb38fea2098b8335e44c3654c [diff]
parent	fc032e38dc6371ef9dd506728fea14e0ab82988c [diff]

tree: 09396df369820670807da97f9e9f4fa4513c5749

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"