commit | 9f27d8a3833581edc419d2f14b790e264ffa5ae3 | [log] [tgz] |
---|---|---|
author | Xin Li <delphij@google.com> | Sat Feb 20 12:22:22 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Sat Feb 20 12:22:22 2021 +0000 |
tree | 0c972b8768dec8097b2470d65a90d403559ec404 | |
parent | 8e0eb5bb0ac36ed9e8089bfd3bc8c04559ce0c07 [diff] | |
parent | 9beea376c00683fa63d33bb8247d3115e105ce0b [diff] |
[automerger skipped] Mark ab/7061308 as merged in stage. am: d7f6702f40 -s ours am: 9beea376c0 -s ours am skip reason: Change-Id I455613d78eaf2304ae128de324ecb337aade1464 with SHA-1 878758dadc is in history Original change: undetermined MUST ONLY BE SUBMITTED BY AUTOMERGER Change-Id: I435b55b064664bf7fb37ce17d1b19b39383fea33
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"