Method next

src/io.rs:110–134

(&mut self)

    type Item = io::Result<Vec<String>>;

    fn next(&mut self) -> Option<Self::Item> {
        loop {
            let mut buf = String::new();
            match self.reader.read_line(&mut buf) {
                Ok(0) => {
                    return None
                },
                Err(e) => {
                    return Some(Err(e))
                },
                Ok(_n) => {
                    // remove new line from end of line
                    if buf.ends_with("\n") {
                        buf.pop();
                    }
                    match self.r.captures(&buf) {
                        Some(cap) => {
                            return Some(Ok(cap.iter().map(|s| s.unwrap().to_string()).collect()));
                        },
                        _ => ()  // skip line and try next line
                    }
                }
            }
        }
    }

}