Created
March 22, 2011 14:43
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Simple Binary / List to lowercase hex functions using binary comprehensions
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| to_hex(List) when is_list(List) -> | |
| to_hex(iolist_to_binary(List)); | |
| to_hex(Binary) when is_binary(Binary) -> | |
| << <<(to_digit(Nibble1)):8,(to_digit(Nibble2)):8>> || <<Nibble1:4,Nibble2:4>> <= Binary >>. | |
| to_digit(N) when N < 10 -> $0 + N; | |
| to_digit(N) -> $a + N-10. |
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