This character is a Other Letter and is mainly used in the Cham script.
The glyph is not a composition. 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. U+AA19 forms an orthographic syllable in Brahmic scripts with similar characters, which prevents a line break inside it.
El Wikipedia tiene la siguiente información acerca de este punto de código:
The Cham script (Cham: ꨀꨇꩉ ꨌꩌ)is a Brahmic abugida used to write Cham, an Austronesian language spoken by some 245,000 Chams in Vietnam and Cambodia. It is written horizontally left to right, just like other Brahmic abugidas.
Representaciones
Sistema
Representación (click value to copy)
N.º
43545
UTF-8
EA A8 99
UTF-16
AA 19
UTF-32
00 00 AA 19
URL-Quoted
%EA%A8%99
HTML hex reference
ꨙ
Mojibake mal de windows-1252
ꨙ
Codificación: GB18030 (hexadecimales bytes)
82 37 9E 38
RFC 5137
\u'AA19'
Bash and Zsh inside echo -e
\uAA19
C and C++
\uAA19
C#
\uAA19
CSS
\00AA19
Excel
=UNICHAR(43545)
Go
\uAA19
JavaScript
\uAA19
Modern JavaScript since ES6
\u{aa19}
JSON
\uAA19
Java
\uAA19
Lua
\u{AA19}
Matlab
char(43545)
Perl
"\x{AA19}"
PHP
\u{aa19}
PostgreSQL
U&'\AA19'
PowerShell
`u{AA19}
Python
\uAA19
Ruby
\u{aa19}
Rust
\u{aa19}
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