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[](https://flip1995.github.io/rustc-semver/)
[](https://github.com/flip1995/rustc-semver/actions?query=branch%3Amaster+event%3Apush+workflow%3ATests)
# Rustc Semver
This crate provides a minimalistic parser for Rust versions.
## Description
The parser will only accept Versions in the form
```text
<major>.<minor>.<patch>
```
and 3 special versions:
- `1.0.0-alpha`
- `1.0.0-alpha.2`
- `1.0.0-beta`
This covers every version of `rustc` that were released to date.
## Usage
There are 2 functions to create a `RustcVersion`:
1. `const RustcVersion::new(u32, u32, u32)`: This is mainly used to create
constants
2. `RustcVersion::parse(&str)`: Usually you want to parse a version with this
function
If you have a `RustcVersion` you can compare them, like you would expect:
```rust
assert!(RustcVersion::parse("1.42.0")? < RustcVersion::parse("1.43")?);
```
If you want to check whether one version meets another version according to the
[Caret Requirements], there is the method `RustcVersion::meets`:
```rust
assert!(RustcVersion::new(1, 48, 0).meets(RustcVersion::parse("1.42")?));
```
[Caret Requirements]: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#caret-requirements
## Code of Conduct
This repository adopts the [Contributor Covenant Code of
Conduct](https://www.contributor-covenant.org/version/1/4/code-of-conduct/)
## License
Copyright 2020 Philipp Krones
Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
https://www.apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
https://opensource.org/licenses/MIT>, at your option. Files in the project may
not be copied, modified, or distributed except according to those terms.
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