// 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"^.*access-list([^\s]*\s){1}(?<src_acl>[^\s]+)\s([^\s]*\s){2}(?<src_iface>[a-z]+)\/(?<src_ip>[0-9.]+)\((?<src_port>[0-9]+)\)\s->\s(?<dest_iface>[a-z]+)\/(?<dest_ip>[0-9.]+)\((?<dest_port>[0-9]+)").unwrap();
let string = "Aug 28 16:02:42 dmzfw-cal.mgmt.biz.lodh.com Aug 28 2015 16:02:42: %ASA-4-106100: access-list acl_dmzout permitted tcp dmzout/192.168.200.20(46301) -> outside/74.120.148.12(80) hit-cnt 1 first hit [0x35de8ee6, 0x0]
";
// result will be a tuple containing the start and end indices for the first match in the string
let result = regex.captures(string);
let (start, end) = match result {
Some((s, e)) => (s, e),
None => {
// ...
}
};
println!("{}", &string[start, end]);
}
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/