Source: Noto Sans NKo

U+07EF NKo Combining Long High Tone

U+07EF was added in Unicode version 5.0 in 2006. It belongs to the block U+07C0 to U+07FF NKo in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Nonspacing Mark and is mainly used in the N’Ko script.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+07EF prohibits a line break before it.

The Wikipedia has the following information about this codepoint:

NKo (ߒߞߏ), also spelled N'Ko, is an alphabetic script devised by Solomana Kanté in 1949, as a modern writing system for the Manding languages of West Africa. The term NKo, which means I say in all Manding languages, is also used for the Manding literary standard written in the NKo script.
The script has a few similarities to the Arabic script, notably its direction (right-to-left) and the letters that are connected at the base. Unlike Arabic, it is obligatory to mark both tone and vowels. NKo tones are marked as diacritics.

Representations

System	Representation
Nº	2031
UTF-8	DF AF
UTF-16	07 EF
UTF-32	00 00 07 EF
URL-Quoted	%DF%AF
HTML hex reference	߯
Wrong windows-1252 Mojibake	â—Œß¯
Encoding: GB18030 (hex bytes)	81 31 B1 35

Elsewhere

Complete Record

Property	Value
Age (age)	5.0 (2006)
Unicode Name (na)	NKO COMBINING LONG HIGH TONE
Unicode 1 Name (na1)	—
Block (blk)	NKo
General Category (gc)	Nonspacing Mark
Script (sc)	N’Ko
Bidirectional Category (bc)	Nonspacing Mark
Combining Class (ccc)	Above
Decomposition Type (dt)	none
Decomposition Mapping (dm)	NKo Combining Long High Tone
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	NKo Combining Long High Tone
Lowercase Mapping (lc)	NKo Combining Long High Tone
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	NKo Combining Long High Tone
Uppercase Mapping (uc)	NKo Combining Long High Tone
Simple Titlecase Mapping (stc)	NKo Combining Long High Tone
Titlecase Mapping (tc)	NKo Combining Long High Tone
Case Folding (cf)	NKo Combining Long High Tone
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)	NKo Combining Long High Tone
Grapheme Cluster Break (GCB)	Extend
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)	Extend
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)	NKo Combining Long High Tone
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	NKo Combining Long High Tone
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)	Extend
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Extend
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)	NKo Combining Long High Tone
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)	Transparent
Line Break (lb)	Combining Mark
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	NKo Combining Long High Tone
Script Extension (scx)
Vertical Orientation (vo)	R