commit | 305e977c5981f63bc6a1c3af00095c23e60b2056 | [log] [tgz] |
---|---|---|
author | Joel Galenson <jgalenson@google.com> | Wed Dec 15 16:01:54 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Wed Dec 15 16:01:54 2021 +0000 |
tree | 09396df369820670807da97f9e9f4fa4513c5749 | |
parent | 0229238b04d433f4bc98be1a16fa35d076b4aded [diff] | |
parent | fc032e38dc6371ef9dd506728fea14e0ab82988c [diff] |
Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: fc032e38dc Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/unicode-width/+/1912797 Change-Id: I32cc2a6cee89b1cc3f07eb331f1bdfa4c63ed2bb
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"