commit | 3dbc1bece23ada2ffb84779ce380e74f9a4b6665 | [log] [tgz] |
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author | Xin Li <delphij@google.com> | Thu Aug 27 19:18:20 2020 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Thu Aug 27 19:18:20 2020 +0000 |
tree | 6d2b1a1b7f120c766ce2a805fdfa362a65737689 | |
parent | d4ca13124552e5ef4fd8b94b0f2e6fa70f2f6c6b [diff] | |
parent | a8c9865eaa41be6ee33ad30dca92dc13ac36c65d [diff] |
[automerger skipped] Mark Android R (rvc-dev-plus-aosp-without-vendor@6692709) as merged am: 89f44b2f5e -s ours am: 43354f03a2 -s ours am: a8c9865eaa -s ours am skip reason: Change-Id I0ae1ef269a16cb5a3bcc1a7e9cad74f77a5f77d2 with SHA-1 7c0096684f is in history Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/unicode-width/+/12469780 Change-Id: I906e5dbafd493de2708e7c35aa692f20a1fbcc9a
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"