This character is a Other Punctuation and is mainly used in the Makasar 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. It can end sentences at appropriate places. U+11EF8 offers a line break opportunity after its position.
The Wikipedia has the following information about this codepoint:
The Makasar script, also known as Ukiri' Jangang-jangang (bird's script) or Old Makasar script, is a historical Indonesian writing system that was used in South Sulawesi to write the Makassarese language between the 17th and 19th centuries until it was supplanted by the Lontara Bugis script.
The Makasar script is an abugida which consists of 18 basic characters. Like other Brahmic scripts, each letter represents a syllable with an inherent vowel /a/, which can be changed with diacritics. The direction of writing is left to right. This script is written without wordspacing (scriptio continua) and with little to no punctuation. "Coda syllables", or consonants at the end of syllables, are not written in the Makasar script, so a Makasar text can contain a lot of ambiguity which can only be distinguished from context.
Representations
System
Representation (click value to copy)
NΒΊ
73464
UTF-8
F0 91 BB B8
UTF-16
D8 07 DE F8
UTF-32
00 01 1E F8
URL-Quoted
%F0%91%BB%B8
HTML hex reference
𑻸
Wrong windows-1252 Mojibake
Γ°β»¸
Encoding: GB18030 (hex bytes)
90 36 A5 38
RFC 5137
\u'11EF8'
Bash and Zsh inside echo -e
\U00011EF8
C and C++
\U00011EF8
C#
\U00011EF8
CSS
\011EF8
Excel
=UNICHAR(73464)
Go
\U00011EF8
JavaScript
\uD807\uDEF8
Modern JavaScript since ES6
\u{11ef8}
JSON
\uD807\uDEF8
Java
\uD807\uDEF8
Lua
\u{11EF8}
Matlab
char(73464)
Perl
"\x{11EF8}"
PHP
\u{11ef8}
PostgreSQL
U&'\+011EF8'
PowerShell
`u{11EF8}
Python
\U00011EF8
Ruby
\u{11ef8}
Rust
\u{11ef8}
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