From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 8 Aug 2021 19:49:42 +0000 (+0100)
Subject: server: MetadataFieldIterator::parse
X-Git-Tag: hippotat/1.0.0~195
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=hippotat.git;a=commitdiff_plain;h=ec3b224d02c390fec097ce6c6816eefda6615355

server: MetadataFieldIterator::parse

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/multipart.rs b/src/multipart.rs
index 112712b..3f918b7 100644
--- a/src/multipart.rs
+++ b/src/multipart.rs
@@ -86,6 +86,15 @@ impl<'b> MetadataFieldIterator<'b> {
     last: Some(0),
     iter: memchr::Memchr::new(b'\n', buf),
   } }
+
+  #[throws(AE)]
+  pub fn parse<T>(&mut self) -> Option<T>
+  where T: FromStr,
+        T::Err: std::error::Error + Sync + Send + 'static,
+  {
+    let s = if let Some(r) = self.next() { r? } else { return None };
+    Some(s.parse()?)
+  }
 }
                                       
 impl<'b> Iterator for MetadataFieldIterator<'b> {