Unicode Character "ー" U+FF70 Halfwidth Katakana-Hiragana Prolonged Sound Mark

Unicode Version 15.1

Summary

The unicode character "ー" at code point U+FF70 is Halfwidth Katakana-Hiragana Prolonged Sound Mark. It is a character in the Halfwidth and Fullwidth Forms block and is part of the Common script. The character is a modifier letter. The UTF-8 encoding of "ー" is 0xEF 0xBD 0xB0 and the UTF-16 encoding is 0xFF70.

General Properties

Code Point U+FF70
Version Added 1.1
Name Halfwidth Katakana-Hiragana Prolonged Sound Mark
Block Halfwidth and Fullwidth Forms
General Category Modifier Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Narrow
Decomposition Mapping "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark

Encodings

HTML Decimal Encoding ー
HTML Hex Encoding ー
UTF-8 Encoding 0xEF 0xBD 0xB0
UTF-16 Encoding 0xFF70
UTF-32 Encoding 0x0000FF70
C/C++/Java Escape \uff70

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Conditional Japanese Starter
East Asian Width Halfwidth
Case Ignorable Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark
NFKC Simple Casefold "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark
Script Common
Script Extensions Hiragana Katakana
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Diacritic Yes
Extender Yes
Alphabetic Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Katakana
Sentence Break OLetter