Source: Noto CJK

U+30FF Katakana Digraph Koto

U+30FF was added in Unicode version 3.2 in 2002. It belongs to the block U+30A0 to U+30FF Katakana in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Katakana script.

The glyph is a vertical composition of the glyphs Katakana Letter Ko, Katakana Letter To. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+30FF offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

Koto (hiragana: , katakana: ヿ) is one of the Japanese kana. It is a polysyllabic kana which represents two morae. Both the hiragana and katakana forms represent [koto]. is a combination (ligature) of the hiragana graphs of ko (こ) and to (と), while ヿ originates from the Chinese character 事.
The katakana koto is as a shorthand used in shinkatakana (真片仮名) (an obsolete writing style that exclusively used katakana instead of hiragana).

Representations

System	Representation
Nº	12543
UTF-8	E3 83 BF
UTF-16	30 FF
UTF-32	00 00 30 FF
URL-Quoted	%E3%83%BF
HTML hex reference	ヿ
Wrong windows-1252 Mojibake	ãƒ¿
Encoding: EUC_JIS_2004 (hex bytes)	A2 B8
Encoding: EUC_JISX0213 (hex bytes)	A2 B8
Encoding: GB18030 (hex bytes)	81 39 A8 30
Encoding: ISO2022_JP_2004 (hex bytes)	1B 24 28 51 22 38 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)	1B 24 28 4F 22 38 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)	81 B6
Encoding: SHIFT_JISX0213 (hex bytes)	81 B6

Elsewhere

Complete Record

Property	Value
Age (age)	3.2 (2002)
Unicode Name (na)	KATAKANA DIGRAPH KOTO
Unicode 1 Name (na1)	—
Block (blk)	Katakana
General Category (gc)	Other Letter
Script (sc)	Katakana
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	vertical
Decomposition Mapping (dm)	Katakana Letter Ko Katakana Letter To
Lowercase (Lower)	✘︎
Simple Lowercase Mapping (slc)	Katakana Digraph Koto
Lowercase Mapping (lc)	Katakana Digraph Koto
Uppercase (Upper)	✘︎
Simple Uppercase Mapping (suc)	Katakana Digraph Koto
Uppercase Mapping (uc)	Katakana Digraph Koto
Simple Titlecase Mapping (stc)	Katakana Digraph Koto
Titlecase Mapping (tc)	Katakana Digraph Koto
Case Folding (cf)	Katakana Digraph Koto
ASCII Hex Digit (AHex)	✘︎
Alphabetic (Alpha)	✔︎
Bidi Control (Bidi_C)	✘︎
Bidi Mirrored (Bidi_M)	✘︎
Composition Exclusion (CE)	✘︎
Case Ignorable (CI)	✘︎
Changes When Casefolded (CWCF)	✘︎
Changes When Casemapped (CWCM)	✘︎
Changes When NFKC Casefolded (CWKCF)	✔︎
Changes When Lowercased (CWL)	✘︎
Changes When Titlecased (CWT)	✘︎
Changes When Uppercased (CWU)	✘︎
Cased (Cased)	✘︎
Full Composition Exclusion (Comp_Ex)	✘︎
Default Ignorable Code Point (DI)	✘︎
Dash (Dash)	✘︎
Deprecated (Dep)	✘︎
Diacritic (Dia)	✘︎
Emoji Modifier Base (EBase)	✘︎
Emoji Component (EComp)	✘︎
Emoji Modifier (EMod)	✘︎
Emoji Presentation (EPres)	✘︎
Emoji (Emoji)	✘︎
Extender (Ext)	✘︎
Extended Pictographic (ExtPict)	✘︎
FC NFKC Closure (FC_NFKC)	Katakana Digraph Koto
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔︎
Grapheme Extend (Gr_Ext)	✘︎
Grapheme Link (Gr_Link)	✘︎
Hex Digit (Hex)	✘︎
Hyphen (Hyphen)	✘︎
ID Continue (IDC)	✔︎
ID Start (IDS)	✔︎
IDS Binary Operator (IDSB)	✘︎
IDS Trinary Operator and (IDST)	✘︎
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘︎
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘︎
Logical Order Exception (LOE)	✘︎
Modifier Combining Mark (MCM)	✘︎
Math (Math)	✘︎
Noncharacter Code Point (NChar)	✘︎
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Katakana Letter Ko Katakana Letter To
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Katakana Letter Ko Katakana Letter To
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘︎
Other Default Ignorable Code Point (ODI)	✘︎
Other Grapheme Extend (OGr_Ext)	✘︎
Other ID Continue (OIDC)	✘︎
Other ID Start (OIDS)	✘︎
Other Lowercase (OLower)	✘︎
Other Math (OMath)	✘︎
Other Uppercase (OUpper)	✘︎
Prepended Concatenation Mark (PCM)	✘︎
Pattern Syntax (Pat_Syn)	✘︎
Pattern White Space (Pat_WS)	✘︎
Quotation Mark (QMark)	✘︎
Regional Indicator (RI)	✘︎
Radical (Radical)	✘︎
Sentence Break (SB)	Other Letter
Soft Dotted (SD)	✘︎
Sentence Terminal (STerm)	✘︎
Terminal Punctuation (Term)	✘︎
Unified Ideograph (UIdeo)	✘︎
Variation Selector (VS)	✘︎
Word Break (WB)	Katakana
White Space (WSpace)	✘︎
XID Continue (XIDC)	✔︎
XID Start (XIDS)	✔︎
Expands On NFC (XO_NFC)	✘︎
Expands On NFD (XO_NFD)	✘︎
Expands On NFKC (XO_NFKC)	✔︎
Expands On NFKD (XO_NFKD)	✔︎
Bidi Paired Bracket (bpb)	Katakana Digraph Koto
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Katakana Digraph Koto
Script Extension (scx)
Vertical Orientation (vo)	U