version-number 1.0.0

Two and three component 'major.minor' and 'major.minor.patch' version number parsing
Documentation 
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# version-number

_Parsing the "version core" of semver numbers and their shorthands_

### Introduction

A crate to parse two- and three component version numbers. The three component version numbers are a subset of
semver, namely, just the "version core" of a semver version (that is, pre-release and/or build modifiers are not
supported).
Two component versions are a shorthand of the three component version number, where the patch number is not specified.

Examples of two- respectively three component version numbers are `1.51` and `1.7.0`.

An example where this version type is found, is the `package.rust-version` field in the Cargo manifest (which crate
authors use
to set the MSRV).

We call a two component `major.minor` version number, such as `1.51`, a **Base Version**, and a three component
`major.minor.patch` version number, such as `1.7.0`, a **Full Version**.

### Add as a dependency

To add `version-number` as a dependency to your Rust project, you may run  `cargo add version-number`.

Alternatively, you could add the `version-number` crate manually to your Cargo manifest (i.e. `Cargo.toml`) as a
dependency:

```toml
[dependencies]
version-number = "0.3"
```

### Usage

```rust
use version_number::{BaseVersion, FullVersion, Version};

fn main() {
    let base = Version::parse("1.27").unwrap();
    assert_eq!(base, Version::Base(BaseVersion::new(1, 27)));

    let full = Version::parse("1.27.0").unwrap();
    assert_eq!(full, Version::Full(FullVersion::new(1, 27, 0)));
}
```

If you only want to parse a two or three component version (and reject the other one), you may instead do:

```rust
use version_number::{BaseVersion, FullVersion};

fn main() {
    let base = BaseVersion::parse("1.27").unwrap();
    assert_eq!(base, BaseVersion::new(1, 27));

    let full = FullVersion::parse("1.27.0").unwrap();
    assert_eq!(full, FullVersion::new(1, 27, 0));
}
```

Please refer to the [docs](https://docs.rs/version-number) to review all functionality.

### License

Licensed under either of

* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)

at your option.

#### Contribution

Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.