Step 1: Determine the UTF-8 encoding bit layout
The character ー has the Unicode code point U+30FC. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format:1110xxxx 10xxxxxx 10xxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+30FC to binary:
00110000 11111100. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
11100011 10000011 10111100
KATAKANA-HIRAGANA PROLONGED SOUND MARK·U+30FC
ー
Character Information
Code Point
U+30FC
HEX
30FC
Unicode Plane
Basic Multilingual Plane
Category
Modifier Letter
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E3 83 BC | 11100011 10000011 10111100 |
| UTF16 (big Endian) | 30 FC | 00110000 11111100 |
| UTF16 (little Endian) | FC 30 | 11111100 00110000 |
| UTF32 (big Endian) | 00 00 30 FC | 00000000 00000000 00110000 11111100 |
| UTF32 (little Endian) | FC 30 00 00 | 11111100 00110000 00000000 00000000 |
HTML Entity
ー
URI Encoded
%E3%83%BC
Description
The Unicode character U+30FC, known as the Katakana-Hiragana Prolonged Sound Mark (かゥーマーク), plays a pivotal role in digital text, particularly within Japanese typography. Its primary function is to indicate a prolonged sound or a long vowel in both Katakana and Hiragana scripts. This distinctive character allows for a more accurate representation of spoken language by denoting the length and intensity of syllables. It is especially useful in linguistic studies, where precise transcriptions are vital for understanding pronunciation patterns, accents, and dialectal variations. In addition to its utility in academic contexts, the Katakana-Hiragana Prolonged Sound Mark serves as a valuable tool for learners of the Japanese language, assisting them in correctly identifying and producing long vowel sounds. Overall, this Unicode character significantly contributes to the accuracy and authenticity of digital text in the Japanese language by facilitating a more faithful representation of its phonetic nuances.
How to type the ー symbol on Windows
Hold Alt and type 12540 on the numpad. Or use Character Map.