commit | 5f8d8f016d7d98b92e7cb21deff35c4098162b1d | [log] [tgz] |
---|---|---|
author | Daniel Norman <danielnorman@google.com> | Mon Nov 30 11:41:50 2020 -0800 |
committer | Daniel Norman <danielnorman@google.com> | Mon Nov 30 11:41:50 2020 -0800 |
tree | 8188f8f25890a438093acbaf2eafb630f51ee384 | |
parent | 5b946486b8fd7829c7f856477197e57faebb5c10 [diff] | |
parent | bd5a80376268159baaa5cfc7a229baf20c701f35 [diff] |
Merge SP1A.201130.001 Change-Id: Ib1392b60a07bbea3962e291a92ebf7954d05476a
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.
unicode-width does not depend on libstd, so it can be used in crates with the #![no_std]
attribute.
You can use this package in your project by adding the following to your Cargo.toml
:
[dependencies] unicode-width = "0.1.7"