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. The word that U+0266 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
The voiced glottal fricative, sometimes called breathy-voiced glottal transition, is a type of sound used in some spoken languages which patterns like a fricative or approximant consonant phonologically, but often lacks the usual phonetic characteristics of a consonant. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɦ⟩, and the equivalent X-SAMPA symbol is h.
In many languages, [ɦ] has no place or manner of articulation. Thus, it has been described as a breathy-voiced counterpart of the following vowel from a phonetic point of view. However, its characteristics are also influenced by the preceding vowels and whatever other sounds surround it. Therefore, it can be described as a segment whose only consistent feature is its breathy voice phonation in such languages. It may have real glottal constriction in a number of languages (such as Finnish), making it a fricative.
Northern Wu languages such as Shanghainese contrast the voiced and voiceless glottal fricatives. The two glottal fricatives pattern like plosives.
Representations
System
Representation (click value to copy)
Nº
614
UTF-8
C9 A6
UTF-16
02 66
UTF-32
00 00 02 66
URL-Quoted
%C9%A6
HTML hex reference
ɦ
Wrong windows-1252 Mojibake
ɦ
Encoding: EUC_JIS_2004 (hex bytes)
AB A2
Encoding: EUC_JISX0213 (hex bytes)
AB A2
Encoding: GB18030 (hex bytes)
81 30 AD 37
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 28 51 2B 22 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 28 4F 2B 22 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)
86 41
Encoding: SHIFT_JISX0213 (hex bytes)
86 41
AGL: Latin-5
uni0266
Adobe Glyph List
hhook
RFC 5137
\u'0266'
Bash and Zsh inside echo -e
\u0266
C and C++
\u0266
C#
\u0266
CSS
\000266
Excel
=UNICHAR(614)
Go
\u0266
JavaScript
\u0266
Modern JavaScript since ES6
\u{266}
JSON
\u0266
Java
\u0266
Lua
\u{266}
Matlab
char(614)
Perl
"\x{266}"
PHP
\u{266}
PostgreSQL
U&'\0266'
PowerShell
`u{266}
Python
\u0266
Ruby
\u{266}
Rust
\u{266}
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