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Displayed width of Unicode characters and strings according to UAX#11 rules.
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unicode-rs/unicode-width
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Determine displayed width ofchar andstr types according toUnicode Standard Annex #11 rules.
externcrate unicode_width;use unicode_width::UnicodeWidthStr;fnmain(){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 columnwidth. For example, the woman scientist emoji comprises of a woman emoji, azero-width joiner and a microscope emoji.
externcrate unicode_width;use unicode_width::UnicodeWidthStr;fnmain(){assert_eq!(UnicodeWidthStr::width("👩"),2);// Womanassert_eq!(UnicodeWidthStr::width("🔬"),2);// Microscopeassert_eq!(UnicodeWidthStr::width("👩🔬"),4);// Woman scientist}
SeeUnicode Standard Annex #11 for precise details on what is and isn'tcovered by this crate.
unicode-width does not depend on libstd, so it can be used in crateswith the#![no_std] attribute.
You can use this package in your project by adding the followingto yourCargo.toml:
[dependencies]unicode-width ="0.1.5"
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Displayed width of Unicode characters and strings according to UAX#11 rules.
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