U+FFFC was added to Unicode in version 2.1 (1998). It belongs to the block Specials in the Basic Multilingual Plane.
This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+FFFC behaves as Contingent Break regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.
The Wikipedia has the following information about this codepoint:
Specials is the name of a short Unicode block allocated at the very end of the Basic Multilingual Plane, at U+FFF0–FFFF. Of these 16 codepoints, 5 are assigned as of Unicode 7.0:
- U+FFF9 interlinear annotation anchor, marks start of annotated text
- U+FFFA interlinear annotation separator, marks start of annotating character(s)
- U+FFFB interlinear annotation terminator, marks end of annotation block
- U+FFFC  object replacement character, placeholder in the text for another unspecified object, for example in a compound document.
- U+FFFD � replacement character used to replace an unknown or unrepresentable character
- U+FFFE <noncharacter-FFFE> not a character.
- U+FFFF <noncharacter-FFFF> not a character.
FFFE and FFFF are not unassigned in the usual sense, but guaranteed not to be a Unicode character at all. They can be used to guess a text's encoding scheme, since any text containing these is by definition not a correctly encoded Unicode text. The U+FEFF is Unicode's byte-order mark, named "zero-width no-break space" (as inclusion of it in text shall not be noticed). If this character is read in the wrong byte order (for example, due to an endianness bug), it will read 0xFFFE, which is illegal Unicode.
System | Representation |
---|---|
Nº | 65532 |
UTF-8 | EF BF BC |
UTF-16 | FF FC |
UTF-32 | 00 00 FF FC |
URL-Quoted | %EF%BF%BC |
HTML-Escape |  |
Wrong windows-1252 Mojibake |  |
Property | Value |
---|---|
Age (age) | 2.1 |
Unicode Name (na) | OBJECT REPLACEMENT CHARACTER |
Unicode 1 Name (na1) | — |
Block (blk) | Specials |
General Category (gc) | Other Symbol |
Script (sc) | Common |
Bidirectional Category (bc) | Other Neutral |
Combining Class (ccc) | Not Reordered |
Decomposition Type (dt) | None |
Decomposition Mapping (dm) |
|
Lowercase (Lower) | ✘ |
Simple Lowercase Mapping (slc) |
|
Lowercase Mapping (lc) |
|
Uppercase (Upper) | ✘ |
Simple Uppercase Mapping (suc) |
|
Uppercase Mapping (uc) |
|
Simple Titlecase Mapping (stc) |
|
Titlecase Mapping (tc) |
|
Case Folding (cf) |
|
ASCII Hex Digit (AHex) | ✘ |
Alphabetic (Alpha) | ✘ |
Bidi Control (Bidi_C) | ✘ |
Bidi Mirrored (Bidi_M) | ✘ |
Bidi Paired Bracket (bpb) |
|
Bidi Paired Bracket Type (bpt) | None |
Cased (Cased) | ✘ |
Composition Exclusion (CE) | ✘ |
Case Ignorable (CI) | ✘ |
Full Composition Exclusion (Comp_Ex) | ✘ |
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) | ✘ |
Dash (Dash) | ✘ |
Deprecated (Dep) | ✘ |
Default Ignorable Code Point (DI) | ✘ |
Diacritic (Dia) | ✘ |
East Asian Width (ea) | Neutral |
Extender (Ext) | ✘ |
FC NFKC Closure (FC_NFKC) |
|
Grapheme Cluster Break (GCB) | Any |
Grapheme Base (Gr_Base) | ✔ |
Grapheme Extend (Gr_Ext) | ✘ |
Grapheme Link (Gr_Link) | ✘ |
Hex Digit (Hex) | ✘ |
Hangul Syllable Type (hst) | Not Applicable |
Hyphen (Hyphen) | ✘ |
ID Continue (IDC) | ✘ |
Ideographic (Ideo) | ✘ |
ID Start (IDS) | ✘ |
IDS Binary Operator (IDSB) | ✘ |
IDS Trinary Operator and (IDST) | ✘ |
InMC (InMC) | — |
Indic Positional Category (InPC) | NA |
Indic Syllabic Category (InSC) | Other |
ISO 10646 Comment (isc) | — |
Joining Group (jg) | No_Joining_Group |
Join Control (Join_C) | ✘ |
Jamo Short Name (JSN) | — |
Joining Type (jt) | Non Joining |
Line Break (lb) | Contingent Break |
Logical Order Exception (LOE) | ✘ |
Math (Math) | ✘ |
Noncharacter Code Point (NChar) | ✘ |
NFC Quick Check (NFC_QC) | Yes |
NFD Quick Check (NFD_QC) | Yes |
NFKC Casefold (NFKC_CF) |
|
NFKC Quick Check (NFKC_QC) | Yes |
NFKD Quick Check (NFKD_QC) | Yes |
Numeric Type (nt) | None |
Numeric Value (nv) | NaN |
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) | ✘ |
Pattern Syntax (Pat_Syn) | ✘ |
Pattern White Space (Pat_WS) | ✘ |
Quotation Mark (QMark) | ✘ |
Radical (Radical) | ✘ |
Sentence Break (SB) | Other |
Simple Case Folding (scf) |
|
Script Extension (scx) | Common |
Soft Dotted (SD) | ✘ |
STerm (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) | ✘ |