The glyph is a canonical composition of the glyphs Glyph for U+0055Latin Capital Letter U, Glyph for U+031BCombining Horn. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+01AF forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Ư (lowercase ư) is one of the 12 Vietnamese language vowels. It represents the Vietnamese sound [ɨ].
As with most special Vietnamese letters, this letter is not well-supported by fonts and is often typed as either ⟨u+⟩ or ⟨u*⟩. The VIQR standard is ⟨u+⟩.
On the Windows default Vietnamese keyboard Ư can be found on where the [ key is on a US English keyboard layout.
Because Vietnamese is a tonal language this letter may optionally have any one of the five tonal symbols above or below it.
Ừ ừ
Ứ ứ
Ử ử
Ữ ữ
Ự ự
Representations
System
Representation (click value to copy)
Nº
431
UTF-8
C6 AF
UTF-16
01 AF
UTF-32
00 00 01 AF
URL-Quoted
%C6%AF
HTML hex reference
Ư
Wrong windows-1252 Mojibake
Ư
Encoding: CP1258 (hex bytes)
DD
Encoding: GB18030 (hex bytes)
81 30 9C 35
AGL: Latin-4
Uhorn
AGL: Latin-5
Uhorn
Adobe Glyph List
Uhorn
digraph
U9
RFC 5137
\u'01AF'
Bash and Zsh inside echo -e
\u01AF
C and C++
\u01AF
C#
\u01AF
CSS
\0001AF
Excel
=UNICHAR(431)
Go
\u01AF
JavaScript
\u01AF
Modern JavaScript since ES6
\u{1af}
JSON
\u01AF
Java
\u01AF
Lua
\u{1AF}
Matlab
char(431)
Perl
"\x{1AF}"
PHP
\u{1af}
PostgreSQL
U&'\01AF'
PowerShell
`u{1AF}
Python
\u01AF
Ruby
\u{1af}
Rust
\u{1af}
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