commit | da5e465d05cb4bfaa5a3a07f15681153780f9510 | [log] [tgz] |
---|---|---|
author | android-build-team Robot <android-build-team-robot@google.com> | Fri Feb 12 02:06:36 2021 +0000 |
committer | android-build-team Robot <android-build-team-robot@google.com> | Fri Feb 12 02:06:36 2021 +0000 |
tree | 47bda677e08a8f706256e07c4af72934e091e03f | |
parent | 9483e3d1530288b98315a7b5e4a2ed42b4654115 [diff] | |
parent | 50f80447adf8959663f549a080773887c9f803c8 [diff] |
Snap for 7140885 from 50f80447adf8959663f549a080773887c9f803c8 to sc-v2-release Change-Id: I557c797bfbbd45136efe936913de172aae51568c
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"