Lib.rs

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simple proc macro for compile time regex

🚀 Installation

include it in your Cargo.toml under [dependencies]

compiletime-regex = "*"

🧑‍💻 Usage examples

Basic Usage

use compiletime_regex::regex;
use regex::Regex;

fn main() {
    let hex_color_regex = regex!(r#"^#[a-fA-F0-9]{6}$"#);
    assert!(hex_color_regex.is_match("#00C853"));

    let invalid_regex: Regex = regex!(r#"^#[a-fA-F0-9]{6"#); // compile time error
}

with LazyCell and LazyLock

use std::{cell::LazyCell, sync::LazyLock};
use compiletime_regex::regex;
use regex::Regex;

const USERNAME_REGEX: LazyCell<Regex> = LazyCell::new(|| regex!(r#"^[A-Za-z0-9_]{2,30}$"#));
const DATE_REGEX: LazyLock<Regex> = LazyLock::new(|| regex!(r#"^\d{4}-\d{2}-\d{2}$"#));

const INVALID_REGEX: LazyCell<Regex> = LazyCell::new(|| regex!(r#"^[A-Za-z0-9_]{2,30"#)); // compile time error
const INVALID_REGEX: LazyLock<Regex> = LazyLock::new(|| regex!(r#"^\d{4}-\d{2}-\d{2"#)); // compile time error

fn main() {
    assert!(USERNAME_REGEX.is_match("enigma"));
    assert!(DATE_REGEX.is_match("1912-06-23"));
}

🌟 Connect with Us

zahash – [email protected]

Distributed under the MIT license. See LICENSE for more information.

https://github.com/zahash/

🤝 Contribute to compiletime-regex!

1. Fork it (https://github.com/zahash/compiletime-regex/fork)
2. Create your feature branch (git checkout -b feature/fooBar)
3. Commit your changes (git commit -am 'Add some fooBar')
4. Push to the branch (git push origin feature/fooBar)
5. Create a new Pull Request

❤️ Show Some Love!

If you find compiletime-regex helpful and enjoy using it, consider giving it a ⭐ on GitHub! Your star is a gesture of appreciation and encouragement for the continuous improvement of compiletime-regex.