2 releases
0.1.1 | Jan 12, 2019 |
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0.1.0 | Jan 12, 2019 |
#2372 in Encoding
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Used in 2 crates
8KB
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base62.rs
A library for encoding/decoding byte arrays to/from a base62 strings.
Alphabet
This library defines the Base62 alphabet as the following characters:
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
How it works
A byte array (leading zeros allowed) is prepended with 0x01
and is treated
as a big-endian unsigned integer (num_bigint::BigUint
).
This number is repeatedly divided by our base, 62
, and each remainder is used as an index into our alphabet above,
producing the base62 encoded string.
To decode, we run the algorithm above in reverse.
Example
fn main() {
let input = vec![0xDE,0xAD,0xBE,0xEF];
let encoded = base62::encode(&input);
println!("0xDEADBEEF = {}", encoded);
let deadbeef = base62::decode("JsoUl8").unwrap();
let input = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt";
let encoded = base62::encode(input.as_bytes());
println!("lorem... = {}", encoded);
let loremipsum = base62::decode("Inj62xrWzFT5RgFoP72ZkfbrMabXdyZeYGijtTt8zuBN4XvHvEw6x2pk2BtdepGle57axcSeY2ixeXqOvwpE2VaEE3pHeeumHvIbZf0qUUxRBg99NrIALFCE").unwrap();
}
Dependencies
~565KB
~12K SLoC