// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?m)^-0$|^-?0\d+(?:\.\d+)?$|^(-?\d+(?:.\d{1,4})?)$").unwrap();
let string = "0
0.1
0.12
0.123
0.1234
1
1.1
123456789.1234
-0.1
-0.12
-0.123
-0.1234
-1
-1.1
-123456789.1234
-
+
-0
0123456789.1234
007
+0.1
+123456789.1234
.1234
1.";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/