// 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)^(?=.*[1-9])(?!0\d)(\d{0,3}(?:\.\d{1,2})?)$").unwrap();
let string = "Should match: (if decimal exists, max 3 numbers before and 2 after.)
.01
.1
0.01
0.1
1
10
10.1
10.11
105.1
999.99
88.00
Should fail:
12345678.54
00564.5412
00.451
1.
,25
..25
0025
01
00,25
0
.0
0.001
999.001
e123.12
1000";
// 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/