1 files changed, 64 insertions, 0 deletions
diff --git a/headers/src/header_components/cfws.rs b/headers/src/header_components/cfws.rs
new file mode 100644
index 0000000..3ab8585
--- /dev/null
+++ b/headers/src/header_components/cfws.rs
@@ -0,0 +1,64 @@
+use internals::error::EncodingError;
+use internals::encoder::{EncodableInHeader, EncodingWriter};
+
+//FEATURE_TODO(fws_controll): allow controlling the amount of WS and if a CRLF should be used in FWS
+//  this is also usefull for parsing and keeping information about FWS structure
+//FEATURE_TODO(cfws_with_comments): allow encoding commnets in CFWS
+//  this allows encoding comments in CFWS, combine with (part of?) fws_controll
+//  required (partially) for parsing comments (through skipping them works without this)
+
+//
+//pub enum WS {
+//    TAB,
+//    SPACE
+//}
+//
+//pub struct FWS(pub Option<WithCRLF>, pub Vec1<WS> );
+//
+//pub struct WithCRLF {
+//    pub trailing: Vec<WS>
+//}
+
+#[derive(Debug, Hash, Clone, Eq, PartialEq)]
+pub struct FWS;
+
+//NOTE(IMPORTANT): when implementing this I have to assure that encoding CFWS followed by FWS works
+// mainly after using a CR-LF-WSP seq you CAN NOT have another FWS which uses unsolds to a CR-LF-WSP
+// currently we only remember the last FWS and do only make it in a CR-LF-SPACE sequence when we
+// need to, so no problem here for now.
+#[derive(Debug, Clone, Hash, Eq, PartialEq)]
+pub enum CFWS {
+    //WithComment( Vec1<(Option<FWS>, Comment)>, Option<FWS> ),
+    SingleFws( FWS )
+}
+
+
+impl EncodableInHeader for CFWS {
+    fn encode(&self, handle: &mut EncodingWriter) -> Result<(), EncodingError> {
+        match *self {
+            CFWS::SingleFws(ref _fws ) => {
+                handle.write_fws();
+            }
+        }
+        Ok( () )
+    }
+
+    fn boxed_clone(&self) -> Box<EncodableInHeader> {
+        Box::new(self.clone())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    ec_test!{ simple_encode,
+        {
+            CFWS::SingleFws( FWS )
+        } => utf8 => [
+            MarkFWS,
+            Text " "
+        ]
+    }
+
+}
+\ No newline at end of file