Step 1: Determine the UTF-8 encoding bit layout
The character _ has the Unicode code point U+005F. In UTF-8, it is encoded using 1 byte because its codepoint is in the range of
0x0000
to0x007f
.
Therefore we know that the UTF-8 encoding will be done over 7 bits within the final 8 bits and that it will have the format:0xxxxxxx
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+005F to binary:
01011111
. 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:
01011111
LOW LINE·U+005F
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | 5F | 01011111 |
UTF16 (big Endian) | 00 5F | 00000000 01011111 |
UTF16 (little Endian) | 5F 00 | 01011111 00000000 |
UTF32 (big Endian) | 00 00 00 5F | 00000000 00000000 00000000 01011111 |
UTF32 (little Endian) | 5F 00 00 00 | 01011111 00000000 00000000 00000000 |
Description
The Unicode character U+005F, known as the LOW LINE or underscore (_), is a fundamental element in digital text formatting. Primarily used for separating lines of code or demarcating divisions between sections within programming and markup languages, this unobtrusive horizontal line serves a crucial technical purpose, ensuring clarity and readability in textual content. Notably, it does not belong to any specific cultural or linguistic context; instead, its role is critical in digital communication, particularly where precision and exact formatting are vital. The underscore character is part of the Basic Latin Unicode block (U+0000 to U+007F), which serves as the foundational component of the Unicode system, encompassing essential characters for a wide range of applications across multiple platforms and devices. Despite its origins in the ASCII character set, the Basic Latin Unicode block has evolved to accommodate modern needs, remaining an integral part of digital communication today.
How to type the _ symbol on Windows
Hold Alt and type 0095 on the numpad. Or use Character Map.