const-str 0.1.2

# const-str

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[crates-url]: https://crates.io/crates/const-str
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[mit-url]: LICENSE
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[docs-url]: https://docs.rs/const-str/
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compile-time string operations

## Examples

```rust
assert_eq!(const_str::to_lowercase!("HELLO"), "hello");

assert_eq!(const_str::to_uppercase!("hello"), "HELLO");

assert_eq!(const_str::replace!("this is old", "old", "new"), "this is new");
```

feature `verify-regex`

```rust
use regex::Regex;
let re = const_str::verified_regex!(r"^\d{4}-\d{2}-\d{2}$");
assert!(Regex::new(re).is_ok());
```

feature `verify-http`

```rust
use http::header::HeaderName;
let name = const_str::verified_header_name!("content-md5");
assert_eq!(HeaderName::from_static(name).as_str(), "content-md5");
```