Checks whether the radix in str (if present) matches the allow_radix flag, and passes the radix-stripped string to the provided delegate.
Convert a string of hex digits to a byte array. This is only useful for RT strings. If one needs to do this with literals, x"FF FF" is a better approach.
Converts any characters in the range A..F in a hex string to lower case (a..f).
Checks whether str is a hex string (contains only valid hex digits), optionally with radix specifier ("0x").
Checks whether a character is a valid hexadecimal digit.
Utility functions for converting hexadecimal strings.