Lexicon Fractional Index

A Rust version for fractional-indexing . Keys in string and satisfy lexicographic order.

Rewritten from existed codebase:

• Go https://github.com/rocicorp/fracdex
• JavaScript https://github.com/rocicorp/fractional-indexing

Usage

Docs.

```rs use lexiconfractionalindex::key_between;

// create an initial key let k0 = key_between(&None, &None)?;

// two keys, notice that some strings are not valid keys let left = "Xb0M".toowned(); let right = "Xb0M0V".toowned();

// new key at beginning let next = keybetween(&None, &Some(right.toowned()))?;

// new key at end let next = keybetween(&Some(left.toowned()), &None)?;

// new key between 2 keys let next = keybetween(&Some(left.toowned()), &Some(right.to_owned()))?; ```

License

TODO