quick-xml-count.rs

use quick_xml::events::Event;
use quick_xml::reader::Reader;

fn main() {
    let mut reader = Reader::from_file("out.xml").unwrap();
    let mut buf = Vec::new();
    let mut in_location = false;
    let mut count = 0;
    loop {
        match reader.read_event_into(&mut buf) {
            Err(e) => panic!("Error: {}", e),
            Ok(Event::Eof) => break,
            Ok(Event::Start(ref e)) => {
                match e.name().as_ref() {
                    b"location" => in_location = true,
                    _ => in_location = false,
                }
            }
            Ok(Event::Text(e)) => {
                if in_location {
                    if e.windows(6).find(|w| w == b"Africa").is_some() {
                        count += 1;
                    }
                }
            }
            _ => (),
        }
    }
    buf.clear();
    println!("Counter = {}", count);
}