3 Determine displayed width of `char` and `str` types according to
4 [Unicode Standard Annex #11][UAX11] rules.
6 [UAX11]: http://www.unicode.org/reports/tr11/
8 [![Build Status](https://travis-ci.org/unicode-rs/unicode-width.svg)](https://travis-ci.org/unicode-rs/unicode-width)
10 [Documentation](https://unicode-rs.github.io/unicode-width/unicode_width/index.html)
13 extern crate unicode_width;
15 use unicode_width::UnicodeWidthStr;
18 let teststr = "Hello, world!";
19 let width = UnicodeWidthStr::width(teststr);
20 println!("{}", teststr);
21 println!("The above string is {} columns wide.", width);
22 let width = teststr.width_cjk();
23 println!("The above string is {} columns wide (CJK).", width);
27 **NOTE:** The computed width values may not match the actual rendered column
28 width. For example, the woman scientist emoji comprises of a woman emoji, a
29 zero-width joiner and a microscope emoji.
32 extern crate unicode_width;
33 use unicode_width::UnicodeWidthStr;
36 assert_eq!(UnicodeWidthStr::width("👩"), 2); // Woman
37 assert_eq!(UnicodeWidthStr::width("🔬"), 2); // Microscope
38 assert_eq!(UnicodeWidthStr::width("👩🔬"), 4); // Woman scientist
42 See [Unicode Standard Annex #11][UAX11] for precise details on what is and isn't
43 covered by this crate.
47 unicode-width does not depend on libstd, so it can be used in crates
48 with the `#![no_std]` attribute.
52 You can use this package in your project by adding the following
57 unicode-width = "0.1.7"