// 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)(?<!XXY)(?<=Y)\w(?=Y)(?!YYXX)").unwrap();
let string = "(?<!XXY)(?<=Y)\\w(?=Y)(?!YYXX)
^ ^ ^ ^ ^
| | | | not before YYXX
| | |before Y
| |letter
| followed by Y
not followed by XXY
X0XYXYYX
X(?=Y) match X if before Y
X(?!Y) match X if not before Y
(?<=Y)X match X if followed by Y
(?<!Y)X match X if not followed by Y";
// 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/