commit | 40fdf31d99c8de0512903ab58ab7d70e15921f41 | [log] [tgz] |
---|---|---|
author | android-build-team Robot <android-build-team-robot@google.com> | Thu Feb 18 02:06:09 2021 +0000 |
committer | android-build-team Robot <android-build-team-robot@google.com> | Thu Feb 18 02:06:09 2021 +0000 |
tree | 0c972b8768dec8097b2470d65a90d403559ec404 | |
parent | da5e465d05cb4bfaa5a3a07f15681153780f9510 [diff] | |
parent | 8e0eb5bb0ac36ed9e8089bfd3bc8c04559ce0c07 [diff] |
Snap for 7152399 from 8e0eb5bb0ac36ed9e8089bfd3bc8c04559ce0c07 to sc-v2-release Change-Id: I79ec29ad16c587692546f9ad3dd73b8944885c86
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"