A "file-backed" map, which inserts keys and values into a file in O(n) time, and gets the values in O(log-n) time using binary search and file seeking. For now, it only supports (hashable) keys and values that implement the Display and FromStr traits (i.e., those which can be converted to string and parsed back from string). This will change to serialization in the near future.
See the module documentation for more information.
Note that this is still experimental, and so use it at your own risk!
Add the following to your Cargo.toml...
toml
[dependencies.catalog]
git = "https://github.com/Wafflespeanut/rust-catalog"
version = "*"
Have a look at the detailed example for the precise usage.