This crate provides hex! macro for converting hexadecimal string literal to byte array at compile time.

It accepts the following characters in the input string:

'0'...'9' , 'a'...'f' , 'A'...'F' — hex characters which will be used in construction of the output byte array

, , — hex characters which will be used in construction of the output byte array ' ' , '\r' , '

' , '\t' — formatting characters which will be ignored