Source: Noto Sans

U+01DF Latin Small Letter A with Diaeresis and Macron

U+01DF was added in Unicode version 1.1 in 1993. It belongs to the block U+0180 to U+024F Latin Extended-B in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Lowercase Letter and is mainly used in the Latin script. Its uppercase variant is Latin Capital Letter A with Diaeresis and Macron and its titlecase variant is Latin Capital Letter A with Diaeresis and Macron.

The glyph is a canonical composition of the glyphs Latin Small Letter A with Diaeresis, Combining Macron. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+01DF forms with similar adjacent characters prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

Ä (lowercase ä) is a character that represents either a letter from several extended Latin alphabets, or the letter A with an umlaut mark or diaeresis. In the International Phonetic Alphabet, it represents the open central unrounded vowel.

Representations

System	Representation
Nº	479
UTF-8	C7 9F
UTF-16	01 DF
UTF-32	00 00 01 DF
URL-Quoted	%C7%9F
HTML hex reference	ǟ
Wrong windows-1252 Mojibake	ÇŸ
Encoding: GB18030 (hex bytes)	81 30 A0 35
AGL: Latin-5	uni01DF
Adobe Glyph List	adieresismacron
digraph	a1

Related Characters

Latin Capital Letter A with Diaeresis and Macron

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	LATIN SMALL LETTER A WITH DIAERESIS AND MACRON
Unicode 1 Name (na1)	LATIN SMALL LETTER A DIAERESIS MACRON
Block (blk)	Latin Extended-B
General Category (gc)	Lowercase Letter
Script (sc)	Latin
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	canonical
Decomposition Mapping (dm)	Latin Small Letter A with Diaeresis Combining Macron
Lowercase (Lower)	✔︎
Simple Lowercase Mapping (slc)	Latin Small Letter A with Diaeresis and Macron
Lowercase Mapping (lc)	Latin Small Letter A with Diaeresis and Macron
Uppercase (Upper)	✘︎
Simple Uppercase Mapping (suc)	Latin Capital Letter A with Diaeresis and Macron
Uppercase Mapping (uc)	Latin Capital Letter A with Diaeresis and Macron
Simple Titlecase Mapping (stc)	Latin Capital Letter A with Diaeresis and Macron
Titlecase Mapping (tc)	Latin Capital Letter A with Diaeresis and Macron
Case Folding (cf)	Latin Small Letter A with Diaeresis and Macron
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)	Latin Small Letter A with Diaeresis and Macron
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)	No
NFKC Casefold (NFKC_CF)	Latin Small Letter A with Diaeresis and Macron
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Latin Small Letter A with Diaeresis and Macron
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)	Lower
Soft Dotted (SD)	✘︎
Sentence Terminal (STerm)	✘︎
Terminal Punctuation (Term)	✘︎
Unified Ideograph (UIdeo)	✘︎
Variation Selector (VS)	✘︎
Word Break (WB)	Alphabetic Letter
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)	Latin Small Letter A with Diaeresis and Macron
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)	Alphabetic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Latin Small Letter A with Diaeresis and Macron
Script Extension (scx)
Vertical Orientation (vo)	R