rfc7239

Parser for [rfc7239] formatted Forwarded headers.

Usage

```rust use rfc7239::parse;

// get the header value from your favorite http server library let header_value = "for=192.0.2.60;proto=http;by=203.0.113.43,for=192.168.10.10";

for noderesult in parse(headervalue) { let node = noderesult?; if let Some(forwardedfor) = node.forwardedfor { println!("Forwarded by {}", forwardedfor) } } ```