Source: Noto Sans

U+035E COMBINING DOUBLE MACRON

U+035E was added to Unicode in version 4.0 (2003). It belongs to the block U+0300 to U+036F Combining Diacritical Marks in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. In text U+035E behaves as Non-breaking (“Glue”) regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

A macron () is a diacritical mark: it is a straight bar (¯) placed above a letter, usually a vowel. Its name derives from Ancient Greek μακρόν (makrón) "long", since it was originally used to mark long or heavy syllables in Greco-Roman metrics. It now more often marks a long vowel. In the International Phonetic Alphabet, the macron is used to indicate a mid-tone; the sign for a long vowel is instead a modified triangular colon ⟨ː⟩.
The opposite is the breve ⟨˘⟩, which marks a short or light syllable or a short vowel.

Representations

System	Representation
Nº	862
UTF-8	CD 9E
UTF-16	03 5E
UTF-32	00 00 03 5E
URL-Quoted	%CD%9E
HTML-Escape	͞
Wrong windows-1252 Mojibake	âÍ
AGL: Latin-5	uni035E

Elsewhere

Complete Record

Property	Value
Age	4.0 (2003)
Unicode Name	COMBINING DOUBLE MACRON
Unicode 1 Name	—
Block	Combining Diacritical Marks
General Category	Nonspacing Mark
Script	Inherited
Bidirectional Category	Nonspacing Mark
Combining Class	Double Above
Decomposition Type	None
Decomposition Mapping	Combining Double Macron
Lowercase	✘
Simple Lowercase Mapping	Combining Double Macron
Lowercase Mapping	Combining Double Macron
Uppercase	✘
Simple Uppercase Mapping	Combining Double Macron
Uppercase Mapping	Combining Double Macron
Simple Titlecase Mapping	Combining Double Macron
Titlecase Mapping	Combining Double Macron
Case Folding	Combining Double Macron
ASCII Hex Digit	✘
Alphabetic	✘
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✔
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✔
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Combining Double Macron
Grapheme Cluster Break	Extend
Grapheme Base	✘
Grapheme Extend	✔
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✔
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Combining Double Macron
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Extend
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Extend
White Space	✘
XID Continue	✔
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Combining Double Macron
Bidi Paired Bracket Type	None
East Asian Width	Ambiguous
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Transparent
Line Break	Non-breaking (“Glue”)
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Combining Double Macron
Script Extension
Vertical Orientation	R