unicode-width

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

Documentation

```rust 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.

```rust extern crate unicodewidth; use unicodewidth::UnicodeWidthStr;

fn main() { asserteq!(UnicodeWidthStr::width("👩"), 2); // Woman asserteq!(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:

toml [dependencies] unicode-width = "0.1.5"