| commit | fcb9ccef18767ccb77c02928236ac56a031eebd0 | [log] [tgz] |
|---|---|---|
| author | Xin Li <delphij@google.com> | Thu Oct 08 17:21:40 2020 -0700 |
| committer | Xin Li <delphij@google.com> | Thu Oct 08 17:21:40 2020 -0700 |
| tree | 171a8d477ac6d8882dfb1db3c4a3c4a6a4c6d1e5 | |
| parent | d6e175df629a404d01175fe1ff244d36aecc535d [diff] | |
| parent | 961f3b835d0f7043879f217c1af3f96a042dd419 [diff] |
Skip ab/6749736 in stage. Merged-In: Ifbaad984d150fce901d6c59534326a97e2867403 Change-Id: Iac0a0649b074d60fe848fc00f86ec2797c6b2042
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"