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+AA00 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
43520
UTF-8
EA A8 80
UTF-16
AA 00
UTF-32
00 00 AA 00
URL-Quoted
%EA%A8%80
HTML hex reference
ꨀ
Mojibake mal de windows-1252
ꨀ
Codificación: GB18030 (hexadecimales bytes)
82 37 9C 33
RFC 5137
\u'AA00'
Bash and Zsh inside echo -e
\uAA00
C and C++
\uAA00
C#
\uAA00
CSS
\00AA00
Excel
=UNICHAR(43520)
Go
\uAA00
JavaScript
\uAA00
Modern JavaScript since ES6
\u{aa00}
JSON
\uAA00
Java
\uAA00
Lua
\u{AA00}
Matlab
char(43520)
Perl
"\x{AA00}"
PHP
\u{aa00}
PostgreSQL
U&'\AA00'
PowerShell
`u{AA00}
Python
\uAA00
Ruby
\u{aa00}
Rust
\u{aa00}
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