4 releases
0.2.1 | Jul 22, 2023 |
---|---|
0.2.0 | Jul 18, 2023 |
0.1.1 | Jul 11, 2023 |
0.1.0 | Jul 9, 2023 |
#262 in #regex
24 downloads per month
28KB
470 lines
js-regexp
Ergonomic Rust bindings to the JavaScript standard built-in RegExp
object
In Wasm environments that are glued to a JavaScript runtime, depending on a crate like regex
for regular expression matching can seem silly (at least when package size is a concern) - There's a perfectly fine
regular expression engine right there, in JavaScript! This crate aims to provide a convenient interface using js-sys
's
raw bindings to JavaScript's RegExp
built-in.
Usage
See docs.rs for detailed usage information.
Basic example
use js_regexp::{flags, RegExp};
let mut re = RegExp::new(r#"(?<greeting>\w+), (?<name>\w+)"#, flags!("d")).unwrap();
let result = re.exec("Hello, Alice!").unwrap();
let mut iter = result.captures().unwrap().iter();
let named_captures = result.named_captures().unwrap();
assert_eq!("Hello, Alice", result.match_slice);
assert_eq!(0, result.match_index);
assert_eq!(12, result.match_length);
assert_eq!("Hello", iter.next().unwrap().slice);
assert_eq!("Hello", named_captures.get("greeting").unwrap().slice);
assert_eq!(5, iter.next().unwrap().length);
assert_eq!(7, named_captures.get("name").unwrap().index);
Stability
js-regexp is not tested extensively.
The public interface may change across minor versions while
js-regexp is pre-1.0.0, but because of its simplicity and small scope I expect any required changes in consuming code to
be quick and easy.
Issues and pull requests are welcome!
License
js-regexp is somewhat arbitrarily released under the MIT License. Worrying about copyright with small utility crates like this seems not worth it - more restrictive licenses can never address all possible cases in just the right way anyway. Copyright's ability to create justice is limited. So just don't be evil, please ❤️
Dependencies
~1–1.6MB
~30K SLoC