Home U+3000 to U+303F CJK Symbols and Punctuation
Glyph for U+3031
Source: Noto CJK

U+3031 Vertical Kana Repeat Mark

U+3031 was added in Unicode version 1.1 in 1993. It belongs to the block U+3000 to U+303F CJK Symbols and Punctuation in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Modifier Letter and is commonly used, that is, in no specific script. It is also used in the scripts Hiragana, Katakana.

The glyph is not a composition. 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+3031 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

Iteration marks are characters or punctuation marks that represent a duplicated character or word.

Representations

System Representation
Nº 12337
UTF-8 E3 80 B1
UTF-16 30 31
UTF-32 00 00 30 31
URL-Quoted %E3%80%B1
HTML hex reference 〱
Wrong windows-1252 Mojibake ◌〱
Encoding: GB18030 (hex bytes) 81 39 A5 31

Elsewhere

Complete Record

Property Value
Age (age) 1.1 (1993)
Unicode Name (na) VERTICAL KANA REPEAT MARK
Unicode 1 Name (na1) —
Block (blk) CJK Symbols and Punctuation
General Category (gc) Modifier Letter
Script (sc) Common
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+3031 Vertical Kana Repeat Mark
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+3031 Vertical Kana Repeat Mark
Lowercase Mapping (lc) Glyph for U+3031 Vertical Kana Repeat Mark
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+3031 Vertical Kana Repeat Mark
Uppercase Mapping (uc) Glyph for U+3031 Vertical Kana Repeat Mark
Simple Titlecase Mapping (stc) Glyph for U+3031 Vertical Kana Repeat Mark
Titlecase Mapping (tc) Glyph for U+3031 Vertical Kana Repeat Mark
Case Folding (cf) Glyph for U+3031 Vertical Kana Repeat Mark
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) Glyph for U+3031 Vertical Kana Repeat Mark
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) Glyph for U+3031 Vertical Kana Repeat Mark
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+3031 Vertical Kana Repeat Mark
NFKD Quick Check (NFKD_QC) Yes
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) Glyph for U+3031 Vertical Kana Repeat Mark
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) Glyph for U+3031 Vertical Kana Repeat Mark
Script Extension (scx) Hiragana Katakana
Vertical Orientation (vo) U