Line Break - Prefix Numeric

Unicode Version 18.0

Prefix Numeric is a line breaking class that applies to numeric characters, such as digits, which act as a prefix to the number that follows. This value ensures that these characters stay attached to the subsequent numeric sequence, preventing a line break between the prefix and the number itself. For example, currency symbols like dollar signs or plus and minus signs that precede a numeral are treated as Prefix Numeric, so they won’t be separated from the digits. This behavior maintains the visual and logical integrity of the numeric expression, allowing it to flow as a single unit when text wraps.