format

sf-decimal - structured fields decimal as defined in RFC8941

Base type: number.

The sf-decimal format represents a structured fields decimal as defined in RFC8941.

sf-decimal  = ["-"] 1*12DIGIT "." 1*3DIGIT

Decimals are numbers with an integer and a fractional component. The integer component has at most 12 digits; the fractional component has at most three digits.

This format is appropriate for a header value that must conform to the sf-decimal structured field definition.