commit | d7f6702f405efef5a47b7ee3c530e0ffef2218b7 | [log] [tgz] |
---|---|---|
author | Xin Li <delphij@google.com> | Sat Feb 20 00:24:25 2021 -0800 |
committer | Xin Li <delphij@google.com> | Sat Feb 20 00:24:25 2021 -0800 |
tree | 0c972b8768dec8097b2470d65a90d403559ec404 | |
parent | 856832d0dec3a583fff7047d0e5c1d1d2f5fde4d [diff] | |
parent | 878758dadc9c4e0fc103737c9206db96c79e4719 [diff] |
Mark ab/7061308 as merged in stage. Bug: 180401296 Merged-In: I455613d78eaf2304ae128de324ecb337aade1464 Change-Id: I723aff7dba17959d4dce5aa7eac40b845311fdac
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"