| Add display.rs and the alloc half: all of base16ct now goes through afb2a6e nandithebull 6h ago | 1 | use core::fmt; |
| 2 | |
| 3 | /// `core::fmt` presenter for binary data encoded as hexadecimal (Base16). |
| 4 | #[derive(Copy, Clone, Debug, Eq, PartialEq)] |
| 5 | pub struct HexDisplay<'a>(pub &'a [u8]); |
| 6 | |
| 7 | impl fmt::Display for HexDisplay<'_> { |
| 8 | fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| 9 | write!(f, "{self:X}") |
| 10 | } |
| 11 | } |
| 12 | |
| 13 | impl fmt::UpperHex for HexDisplay<'_> { |
| 14 | fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| 15 | let mut hex = [0u8; 2]; |
| 16 | |
| 17 | for &byte in self.0 { |
| 18 | f.write_str(crate::upper::encode_str(&[byte], &mut hex)?)?; |
| 19 | } |
| 20 | |
| 21 | Ok(()) |
| 22 | } |
| 23 | } |
| 24 | |
| 25 | impl fmt::LowerHex for HexDisplay<'_> { |
| 26 | fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| 27 | let mut hex = [0u8; 2]; |
| 28 | |
| 29 | for &byte in self.0 { |
| 30 | f.write_str(crate::lower::encode_str(&[byte], &mut hex)?)?; |
| 31 | } |
| 32 | |
| 33 | Ok(()) |
| 34 | } |
| 35 | } |