number2name (Rust library)

This is a simple Rust library to convert an index to a name that is as short as possible.

It can convert from index to string and back, for different character sets.

Example

From number to text:

let charset = Charset::case_insensitive("abc");
let text = charset.encode(13);
assert_eq!(text, "aab");

From text to number:

let nr = charset.decode("aab")?;
assert_eq!(nr, 13);

Install

Cargo.toml:

number2name = "^1.0.0"

Encoding

For a character set 'abc', the series is::

0 a
1 b
2 c
3 aa
4 ab
...
10 cb
11 cc
12 aaa
13 aab

Note that this is slightly shorter than base3 with leading characters stripped::

0 a (or '')
1 b
2 c
3 ba
4 bb
...
11 bac
12 bba
13 bbb
14 bbc

Character sets

You can easily use your own character sets using number2name::Charset.

Or use one of the built-in ones:

Notes