litenum

<div align="center">
    <h1>litenum</h1>
</div>

litenum is the *minimal* utility for conversion between **literal** and **enum** !

## Features

- minimal inplementation
- no std, no alloc

## How to use

### to literal

```rust
#[litenum::to]
enum AnkerTarget {
    _blank,
    _self,
    _top,
    _parent,
}

fn main() {
    assert_eq!(
        AnkerTarget::_blank.lit(),
        "_blank",
    )
}
```

### from literal

```rust
#[litenum::from]
#[derive(Debug, PartialEq)]
enum AnkerTarget {
    _blank,
    _self,
    _top,
    _parent,
}

fn main() {
    assert_eq!(
        AnkerTarget::from_lit("_blank"),
        Some(AnkerTarget::_blank),
    )
}
```

### impl both at once

```rust
#[litenum::ium] // same as
                // `#[litenum::to] #[litenum::from]`
#[derive(Debug, PartialEq)]
enum AnkerTarget {
    _blank,
    _self,
    _top,
    _parent,
}

fn main() {
    assert_eq!(
        AnkerTarget::_blank.lit(),
        "_blank",
    );

    assert_eq!(
        AnkerTarget::from_lit("_blank"),
        Some(AnkerTarget::_blank),
    );
}
```