commit | 84fc652c2d0542d0f7a62f2f5f026e72a8ffe98e | [log] [tgz] |
---|---|---|
author | Julien Desprez <jdesprez@google.com> | Thu Feb 11 04:28:46 2021 +0000 |
committer | Julien Desprez <jdesprez@google.com> | Thu Feb 11 04:28:51 2021 +0000 |
tree | 47bda677e08a8f706256e07c4af72934e091e03f | |
parent | 3ae29b0583357b0c233d1deadbd7bc44cf71eb66 [diff] |
Clean up rust_test_host TEST_MAPPING after default update After b/177689340, rust_test_host doesn't need TEST_MAPPING config anymore to run in presubmit. Change-Id: Id6a71b7793171ede6de03ec20b5c06a3c7281f5b Test: presubmit Bug: 178646865
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"