gecko-dev/third_party/rust/unicode-width/README.md

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unicode-width

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

Build Status

Documentation

extern crate unicode_width;

use unicode_width::UnicodeWidthStr;

fn main() {
    let teststr = ", !";
    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);
}

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 = "0.1.4"