Function decode 

pub fn decode(
    encoded: &str,
    alphabet: &Alphabet,
) -> Result<Vec<u8>, DecodeError>

Decodes a string back to binary data using the specified alphabet.

Automatically selects the appropriate decoding strategy based on the alphabet’s mode (BaseConversion, Chunked, or ByteRange).

Arguments

• encoded - The encoded string to decode
• alphabet - The alphabet used for encoding

Returns

A Result containing the decoded binary data, or a DecodeError if the input is invalid

Errors

Returns DecodeError if:

• The input contains invalid characters
• The input is empty
• The padding is invalid (for chunked mode)

Examples

use base_d::{Alphabet, EncodingMode, encode, decode};

let chars: Vec<char> = "01".chars().collect();
let alphabet = Alphabet::new_with_mode(chars, EncodingMode::BaseConversion, None)?;
let data = b"Hi";
let encoded = encode(data, &alphabet);
let decoded = decode(&encoded, &alphabet)?;
assert_eq!(data, &decoded[..]);