// 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)[\r\n]?BEGIN(?:(?!FALSE|END).)*?FALSE(?:(?!FALSE|END).)*?END").unwrap();
let string = "BEGIN
DESCRIPTION: 1234
BOOL:TRUE
END
BEGIN
DESCRIPTION: 4568
BOOL:TRUE
END
BEGIN
DESCRIPTION: 715310
BOOL:FALSE
END
BEGIN
DESCRIPTION: 12489453
BOOL:TRUE
END
BEGIN
DESCRIPTION: 41543
BOOL:FALSE
END";
let substitution = "";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", result);
}
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/