// 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"(?s)entry \d+: (?:(?!entry \d+: ).)*special.*?(?=\s*entry \d+: |$)").unwrap();
let string = "entry 1: hello
entry 2: world
entry 3: this
is a multiline
that makes it hard
entry 4: here we have a special entry
entry 5: here
we
have
another special entry
in a multiline
entry 6: end";
// 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/