This character is a Nonspacing Mark and is mainly used in the Arabic script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+0615 prohibits a line break before it. The glyph can be confused with 19 other glyphs.
The Wikipedia has the following information about this codepoint:
The Qur'an (lit. recitation) is meant to be recited. Its verses are divided according to the rhythm of the language. The Qur'anic punctuation is, therefore, not only based on the structure or the syntax of the sentence, but also on the need to pause, for breath or for effect. Pickthall observes, when a certain sound which marks the rhythm recurs, there is a strong pause and the verse ends naturally, although the sentence may go on to the next verse. Thus the Qur'anic punctuation affects the pronunciation of the words, rhythm, intonation and syllable separation.
Representations
System
Representation (click value to copy)
Nº
1557
UTF-8
D8 95
UTF-16
06 15
UTF-32
00 00 06 15
URL-Quoted
%D8%95
HTML hex reference
ؕ
Wrong windows-1252 Mojibake
◌ؕ
Encoding: GB18030 (hex bytes)
81 31 82 31
RFC 5137
\u'0615'
Bash and Zsh inside echo -e
\u0615
C and C++
\u0615
C#
\u0615
CSS
\000615
Excel
=UNICHAR(1557)
Go
\u0615
JavaScript
\u0615
Modern JavaScript since ES6
\u{615}
JSON
\u0615
Java
\u0615
Lua
\u{615}
Matlab
char(1557)
Perl
"\x{615}"
PHP
\u{615}
PostgreSQL
U&'\0615'
PowerShell
`u{615}
Python
\u0615
Ruby
\u{615}
Rust
\u{615}
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