// 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)To:( =\?.*\?= )(Cc|Subject):").unwrap();
let string = "# Base base
To: =?GB2312?B?s8LR9A==?= , =?GB2312?B?0e7V8buq?= , =?GB2312?B?ts69qNOi?= , =?GB2312?B?wO7RxcX0?= , =?GB2312?B?wfXX07vU?= Cc: =?GB2312?B?wfXA2g==?= , =?GB2312?B?wfW7qNHT?= Subject: =?GB2312?B?u9i4tDogu9i4tDogcGPXqNawvNK9zMrTxrVidWc=?=
# Base base without Cc:
To: =?GB2312?B?s8LR9A==?= , =?GB2312?B?0e7V8buq?= , =?GB2312?B?ts69qNOi?= , =?GB2312?B?wO7RxcX0?= , =?GB2312?B?wfXX07vU?= Subject: =?GB2312?B?u9i4tDogu9i4tDogcGPXqNawvNK9zMrTxrVidWc=?=
# Only one addressee
To: =?GB2312?B?s8LR9A==?= Cc: =?GB2312?B?wfXA2g==?= , =?GB2312?B?wfW7qNHT?= Subject: =?GB2312?B?u9i4tDogu9i4tDogcGPXqNawvNK9zMrTxrVidWc=?=
# Only one addressee without Cc:
To: =?GB2312?B?s8LR9A==?= Subject: =?GB2312?B?u9i4tDogu9i4tDogcGPXqNawvNK9zMrTxrVidWc=?=
";
// 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/