Home U+2000 to U+206F General Punctuation
Glyph for U+2047
Source: Noto Sans

U+2047 Double Question Mark

U+2047 was added in Unicode version 3.2 in 2002. It belongs to the block U+2000 to U+206F General Punctuation in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Punctuation and is commonly used, that is, in no specific script.

The glyph is a compatibility composition of the glyphs Glyph for U+003F Question Mark, Glyph for U+003F Question Mark. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. It can end sentences at appropriate places. U+2047 prohibits line breaks before its position. There might be some exceptions, though. The glyph can be confused with one other glyph.

The Wikipedia has the following information about this codepoint:

?? (two question marks), also written as U+2047 ⁇ DOUBLE QUESTION MARK, may refer to:

  • Chess annotation symbols § ?? (Blunder)
  • The null coalescing operator, in some programming languages

Representations

System Representation (click value to copy)
Nº 8263
UTF-8 E2 81 87
UTF-16 20 47
UTF-32 00 00 20 47
URL-Quoted %E2%81%87
HTML hex reference ⁇
Wrong windows-1252 Mojibake ⁇
Encoding: EUC_JIS_2004 (hex bytes) A8 EC
Encoding: EUC_JISX0213 (hex bytes) A8 EC
Encoding: GB18030 (hex bytes) 81 36 A9 31
Encoding: ISO2022_JP_2004 (hex bytes) 1B 24 28 51 28 6C 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes) 1B 24 28 4F 28 6C 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes) 84 EA
Encoding: SHIFT_JISX0213 (hex bytes) 84 EA
RFC 5137 \u'2047'
Bash and Zsh inside echo -e\u2047
C and C++ \u2047
C# \u2047
CSS \002047
Excel =UNICHAR(8263)
Go \u2047
JavaScript \u2047
Modern JavaScript since ES6\u{2047}
JSON \u2047
Java \u2047
Lua \u{2047}
Matlab char(8263)
Perl "\x{2047}"
PHP \u{2047}
PostgreSQL U&'\2047'
PowerShell `u{2047}
Python \u2047
Ruby \u{2047}
Rust \u{2047}
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Related Characters

Confusables

Elsewhere

Complete Record

Property Value
Age (age) 3.2 (2002)
Unicode Name (na) DOUBLE QUESTION MARK
Unicode 1 Name (na1) —
Block (blk) General Punctuation
General Category (gc) Other Punctuation
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) compatibility
Decomposition Mapping (dm) Glyph for U+003F Question Mark Glyph for U+003F Question Mark
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+2047 Double Question Mark
Lowercase Mapping (lc) Glyph for U+2047 Double Question Mark
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+2047 Double Question Mark
Uppercase Mapping (uc) Glyph for U+2047 Double Question Mark
Simple Titlecase Mapping (stc) Glyph for U+2047 Double Question Mark
Titlecase Mapping (tc) Glyph for U+2047 Double Question Mark
Case Folding (cf) Glyph for U+2047 Double Question 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+2047 Double Question 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+003F Question Mark Glyph for U+003F Question Mark
NFKC Quick Check (NFKC_QC) No
NFKC_SCF (NFKC_SCF) Glyph for U+003F Question Mark Glyph for U+003F Question Mark
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) Sentence Terminal
Soft Dotted (SD) ✘
Sentence Terminal (STerm) ✔
Terminal Punctuation (Term) ✔
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Other
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+2047 Double Question Mark
Bidi Paired Bracket Type (bpt) None
East Asian Width (ea) neutral
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) —
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Nonstarter
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+2047 Double Question Mark
Script Extension (scx)
Vertical Orientation (vo) U