pub fn validate_gtin(code: &str) -> Option<&'static str>Examples found in repository?
examples/gtin_validated_debug.rs (line 12)
6async fn main() {
7 let mut stream = ScannerStream::new().unwrap();
8 println!("Listening... scan something:");
9
10 while let Some(ev) = stream.next().await {
11 if let Some(text) = ev.text.clone() {
12 match validate_gtin(&text) {
13 Some(gtin_type) => {
14 println!("{} is a valid {}", text, gtin_type);
15 },
16 None => {
17 println!("{} is NOT a valid GTIN", text);
18 },
19 }
20 }
21 }
22}