Step 1: Determine the UTF-8 encoding bit layout
The character has the Unicode code point U+2FFD. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800
to0xffff
.
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 thex
are 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+2FFD to binary:
00101111 11111101
. 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:
11100010 10111111 10111101
IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER RIGHT·U+2FFD
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 BF BD | 11100010 10111111 10111101 |
UTF16 (big Endian) | 2F FD | 00101111 11111101 |
UTF16 (little Endian) | FD 2F | 11111101 00101111 |
UTF32 (big Endian) | 00 00 2F FD | 00000000 00000000 00101111 11111101 |
UTF32 (little Endian) | FD 2F 00 00 | 11111101 00101111 00000000 00000000 |
Description
U+2FFD, known as the "IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER RIGHT" in Unicode, is a lesser-known typographic character that has a specialized role in digital text. Primarily used in Japanese typography, it serves as a component of ideographic description characters and is part of the vertical text block used in the Japanese writing system. The character helps indicate the positioning of components within a descending or ascending vertical text layout, ensuring proper alignment and readability. While its usage may be limited, understanding this character can contribute to proficiency in digital typography, particularly for those working with non-Latin scripts or those creating digital content that requires support for various languages and writing systems.
How to type the symbol on Windows
Hold Alt and type 12285 on the numpad. Or use Character Map.