nibbler-0.1.1 has been yanked.
Nibbler
A small library to handle nibbles.
There are a few other libraries on Crates.io which handle nibbles.
Efficiency
Nothing in this library should be considered "efficient," nor "fast". It is however meant to be simple.
Quick Example Usage
use Nib;
use Nibble;
let val: u8 = 10;
let mut nib: Nibble = from;
assert_eq!;
use Nibbles;
let val: u16 = 0xaa; // 10101010
let nibs: Nibbles = val.into;
assert_eq!;
For more information, see the documentation...
License
GPLv3