u001F

u001F refers to the Unicode code point U+001F, a control character in the C0 control set. Its hexadecimal value is 1F and its decimal value is 31. It is part of the basic Latin and control character range and has no visible graphical representation in standard text.

The canonical Unicode name for U+001F is INFORMATION SEPARATOR ONE. In many ASCII and legacy contexts, this code point is also described as the Unit Separator (US) and is sometimes referred to as IS1 in ISO terminology. Because it is a control character, it lacks a printable glyph and is not intended for direct visual display.

Encoding and rendering: In UTF-8, U+001F is encoded as a single byte 0x1F. In typical fonts and rendering environments, it does not produce a visible character; its effect is parasitic to the control stream rather than to the displayed text. Some applications may treat it as a data delimiter or may remove it during processing.

Usage: Historically, U+001F has been used as a delimiter to separate fields within data streams, records, or protocols. It was employed in certain data interchange formats and computing systems to structure information, especially in contexts where other common delimiters could not be used. In modern general-purpose text, it is rarely encountered and is more likely to appear only within binary data, specialized protocols, or legacy files.

Representations: In software and documentation, it can be expressed as U+001F, or escaped as \u001F in languages that support Unicode escapes, or \x1F in languages that use hex escapes. In HTML or XML, it can be referenced as  or .