// 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"(?im)tec.world[^=]*=([^H]*)HOST\s*=\s([^\)]*)\s*\)").unwrap();
let string = "A01.WORLD=
(DESCRIPTION =
(SDU = 32768)
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = SAP.WORLD)
(PROTOCOL = TCP)
(HOST = columbus)
(PORT = 1529)
)
(CONNECT_DATA =
(SID = A01)
(GLOBAL_NAME = A01.WORLD)
)
)
TEC.WORLD=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = TEC.WORLD)
(PROTOCOL = TCP)
(HOST = columbus)
(PORT = 1521)
)
)
(CONNECT_DATA =
(SID = TEC)
(GLOBAL_NAME = TEC.WORLD)
)
)";
// 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/