Fix incorrect parsing of Windows drive letter quirk (#889)

* Fixes the parser to correctly parse "file:///C|/hello/world" into "file:///C:/hello/world"

url/src/parser.rs

@@ -1038,25 +1038,24 @@ impl<'a> Parser<'a> {
         &mut self,
         input: Input<'i>,
     ) -> ParseResult<(bool, HostInternal, Input<'i>)> {
-        let has_host;
-        let (_, host_str, remaining) = Parser::file_host(input)?;
+        let (has_host, host_str, remaining) = Parser::file_host(input)?;
+        if !has_host {
+            return Ok((false, HostInternal::None, remaining));
+        }
         let host = if host_str.is_empty() {
-            has_host = false;
             HostInternal::None
         } else {
             match Host::parse(&host_str)? {
                 Host::Domain(ref d) if d == "localhost" => {
-                    has_host = false;
                     HostInternal::None
                 }
                 host => {
                     write!(&mut self.serialization, "{}", host).unwrap();
-                    has_host = true;
                     host.into()
                 }
             }
         };
-        Ok((has_host, host, remaining))
+        Ok((true, host, remaining))
     }
 
     pub fn file_host(input: Input) -> ParseResult<(bool, String, Input)> {

url/tests/unit.rs

@@ -1306,3 +1306,9 @@ fn issue_864() {
     url.set_path("x");
     dbg!(&url);
 }
+
+#[test]
+fn issue_889() {
+    let u = Url::parse("file:///C|/hello/world").unwrap();
+    assert_eq!(u.as_str(), "file:///C:/hello/world");
+}