U+0100 "Ā" Latin Capital Letter A with Macron Unicode Character
Unicode Version 17.0
Ā
U+0100 "Ā" Latin Capital Letter A with Macron is a standard character used primarily in the orthographies of several languages, including Latvian, Māori, and Hawaiian, to indicate a long vowel sound through the macron diacritic placed above the letter A. It belongs to the Latin Extended-A block and has a lowercase counterpart, 'ā' (U+0101), which represents the same sound in lower case. In digital text, this character is essential for accurate spelling and pronunciation in these languages, ensuring that the extended vowel length is clearly distinguished from its short counterpart.
General Properties
| Code Point | U+0100 |
| Version Added | 1.1 |
| Name | Latin Capital Letter A with Macron |
| Unicode 1.0 Name | Latin Capital Letter A Macron |
| Block | Latin Extended-A |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "A" U+0041 Latin Capital Letter A "̄" U+0304 Combining Macron |
Encodings
| HTML Decimal Encoding | Ā |
| HTML Hex Encoding | Ā |
| UTF-8 Encoding | 0xC4 0x80 |
| UTF-16 Encoding | 0x0100 |
| UTF-32 Encoding | 0x00000100 |
| C/C++/Java Escape | \u0100 |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ā" U+0101 Latin Small Letter A with Macron |
| Lowercase Code Point | "ā" U+0101 Latin Small Letter A with Macron |
| Simple Case Folding | "ā" U+0101 Latin Small Letter A with Macron |
| Case Folding | "ā" U+0101 Latin Small Letter A with Macron |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ā" U+0101 Latin Small Letter A with Macron |
| NFKC Simple Casefold | "ā" U+0101 Latin Small Letter A with Macron |
| Script | Latin |
| Script Extensions | Latin |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |