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std/hex ​

Hex encoding and decoding.

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from "std/hex" import { Hex }

Functions ​

Hex.encode ​

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fn Hex.encode(input: &string): string

Encodes a string as hexadecimal.

Hex.decode ​

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fn Hex.decode(input: &string): Result<string>

Decodes a hex string back to bytes. Case-insensitive, but strict about everything else: an odd length or any byte that is not an ASCII hex digit is an Err. No whitespace, no 0x prefix, no separators.

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let encoded = Hex.encode("hello")
print(encoded)  // 68656c6c6f
let decoded = Hex.decode(encoded)!
print(decoded)  // hello

print(Hex.decode("66 6f").isErr())  // true