public override void WriteTo(XmlWriter writer)
        {
            if (writer == null)
            {
                throw new ArgumentNullException("writer");
            }

            writer.WriteStartElement("app", "categories", Version);

            if (writer.LookupPrefix(Namespaces.Atom10) != "a10")
            {
                writer.WriteAttributeString("xmlns", "a10", Namespaces.Xmlns, Namespaces.Atom10);
            }

            // xml:lang, xml:base, term, scheme, label
            if (Document.Language != null)
            {
                writer.WriteAttributeString("xml", "lang", Namespaces.Xml, Document.Language);
            }
            if (Document.BaseUri != null)
            {
                writer.WriteAttributeString("xml", "base", Namespaces.Xml, Document.BaseUri.ToString());
            }

            InlineCategoriesDocument     inline     = Document as InlineCategoriesDocument;
            ReferencedCategoriesDocument referenced = Document as ReferencedCategoriesDocument;

            // ... no term ?

            if (inline != null)
            {
                if (inline.IsFixed)
                {
                    writer.WriteAttributeString("fixed", "yes");
                }
                if (inline.Scheme != null)
                {
                    writer.WriteAttributeString("scheme", inline.Scheme);
                }
            }
            else if (referenced != null)
            {
                if (referenced.Link != null)
                {
                    writer.WriteAttributeString("href", referenced.Link.ToString());
                }
            }

            Document.WriteAttributeExtensions(writer, Version);

            Document.WriteElementExtensions(writer, Version);

            if (inline != null)
            {
                WriteInlineCategoriesContent(inline, writer);
            }
            // no (non-extension) contents for out-of-line category

            writer.WriteEndElement();
        }
 void WriteInlineCategoriesContent(InlineCategoriesDocument doc, XmlWriter writer)
 {
     foreach (var cat in doc.Categories)
     {
         atom10_formatter.WriteCategory(cat, writer);
     }
 }
        void ReadInlineCategoriesContent(InlineCategoriesDocument doc, XmlReader reader)
        {
            var cat = new SyndicationCategory();

            atom10_formatter.ReadCategory(reader, cat);
            doc.Categories.Add(cat);
        }
Beispiel #4
0
        public static CategoriesDocument Load(XmlReader reader)
        {
            if (reader == null)
            {
                throw new ArgumentNullException("reader");
            }

            var f = new AtomPub10CategoriesDocumentFormatter();

            reader.MoveToContent();

            CategoriesDocument doc;

            if (reader.GetAttribute("href") == null)
            {
                doc = new InlineCategoriesDocument();
            }
            else
            {
                doc = new ReferencedCategoriesDocument();
            }
            doc.GetFormatter().ReadFrom(reader);

            return(doc);
        }
Beispiel #5
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 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     if (inlineCategories == null)
     {
         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(inlineCategories));
     }
     return(inlineCategories.CreateCategory());
 }
Beispiel #6
0
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     if (inlineCategories == null)
     {
         throw new ArgumentNullException(nameof(inlineCategories));
     }
     return(inlineCategories.CreateCategory());
 }
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     if (inlineCategories == null)
     {
         throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("inlineCategories");
     }
     return(inlineCategories.CreateCategory());
 }
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     if (inlineCategories == null)
     {
         throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("inlineCategories");
     }
     return inlineCategories.CreateCategory();
 }
		public void WriteTo ()
		{
			var doc = new InlineCategoriesDocument ();
			var f = new AtomPub10CategoriesDocumentFormatter (doc);
			doc.Scheme = "http";
			doc.IsFixed = false;
			var sw = new StringWriter ();
			using (var xw = XmlWriter.Create (sw, settings))
				f.WriteTo (xw);
			Assert.AreEqual (app1, sw.ToString ());
		}
        internal static CategoriesDocument ReadCategories(XmlReader reader, Uri baseUri, CreateInlineCategoriesDelegate inlineCategoriesFactory, CreateReferencedCategoriesDelegate referencedCategoriesFactory, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
        {
            string attribute = reader.GetAttribute("href", string.Empty);

            if (string.IsNullOrEmpty(attribute))
            {
                InlineCategoriesDocument inlineCategories = inlineCategoriesFactory();
                ReadInlineCategories(reader, inlineCategories, baseUri, version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);
                return(inlineCategories);
            }
            ReferencedCategoriesDocument referencedCategories = referencedCategoriesFactory();

            ReadReferencedCategories(reader, referencedCategories, baseUri, new Uri(attribute, UriKind.RelativeOrAbsolute), version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);
            return(referencedCategories);
        }
Beispiel #11
0
		public static CategoriesDocument Load (XmlReader reader)
		{
			if (reader == null)
				throw new ArgumentNullException ("reader");

			var f = new AtomPub10CategoriesDocumentFormatter ();
			reader.MoveToContent ();

			CategoriesDocument doc;
			if (reader.GetAttribute ("href") == null)
				doc = new InlineCategoriesDocument ();
			else
				doc = new ReferencedCategoriesDocument ();
			doc.GetFormatter ().ReadFrom (reader);

			return doc;
		}
 private static void WriteInlineCategoriesContent(XmlWriter writer, InlineCategoriesDocument categories, string version)
 {
     if (!string.IsNullOrEmpty(categories.Scheme))
     {
         writer.WriteAttributeString("scheme", categories.Scheme);
     }
     if (categories.IsFixed)
     {
         writer.WriteAttributeString("fixed", "yes");
     }
     ServiceDocumentFormatter.WriteAttributeExtensions(writer, categories, version);
     for (int i = 0; i < categories.Categories.Count; i++)
     {
         Atom10FeedFormatter.WriteCategory(writer, categories.Categories[i], version);
     }
     ServiceDocumentFormatter.WriteElementExtensions(writer, categories, version);
 }
        internal static CategoriesDocument ReadCategories(XmlReader reader, Uri baseUri, CreateInlineCategoriesDelegate inlineCategoriesFactory, CreateReferencedCategoriesDelegate referencedCategoriesFactory, string version, int maxExtensionSize)
        {
            string link = reader.GetAttribute(App10Constants.Href, string.Empty);

            if (string.IsNullOrEmpty(link))
            {
                InlineCategoriesDocument inlineCategories = inlineCategoriesFactory();
                ReadInlineCategories(reader, inlineCategories, baseUri, version, maxExtensionSize);
                return(inlineCategories);
            }
            else
            {
                ReferencedCategoriesDocument referencedCategories = referencedCategoriesFactory();
                ReadReferencedCategories(reader, referencedCategories, baseUri, new Uri(link, UriKind.RelativeOrAbsolute), version, maxExtensionSize);
                return(referencedCategories);
            }
        }
        public override void WriteToStream(Type type, object value, Stream writeStream, HttpContent content) {

            var document = value as IPublicationCategoriesDocument;

            var atomDoc = new InlineCategoriesDocument(
                document.Categories.Select(c => new SyndicationCategory(c.Name) { Label = c.Label }),
                document.IsFixed,
                document.Scheme
            );

            var formatter = new AtomPub10CategoriesDocumentFormatter(atomDoc);

            using (writeStream) {
                using (var writer = XmlWriter.Create(writeStream)) {
                    formatter.WriteTo(writer);
                }
            }
        }
 private static void WriteInlineCategoriesContent(XmlWriter writer, InlineCategoriesDocument categories, string version)
 {
     if (!string.IsNullOrEmpty(categories.Scheme))
     {
         writer.WriteAttributeString(Atom10Constants.SchemeTag, categories.Scheme);
     }
     // by default, categories are not fixed
     if (categories.IsFixed)
     {
         writer.WriteAttributeString(App10Constants.Fixed, "yes");
     }
     WriteAttributeExtensions(writer, categories, version);
     for (int i = 0; i < categories.Categories.Count; ++i)
     {
         Atom10FeedFormatter.WriteCategory(writer, categories.Categories[i], version);
     }
     WriteElementExtensions(writer, categories, version);
 }
        internal static async Task <CategoriesDocument> ReadCategories(XmlReaderWrapper reader, Uri baseUri, CreateInlineCategoriesDelegate inlineCategoriesFactory, CreateReferencedCategoriesDelegate referencedCategoriesFactory, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
        {
            string link = reader.GetAttribute(App10Constants.Href, string.Empty);

            if (string.IsNullOrEmpty(link))
            {
                InlineCategoriesDocument inlineCategories = inlineCategoriesFactory();
                await ReadInlineCategoriesAsync(reader, inlineCategories, baseUri, version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);

                return(inlineCategories);
            }
            else
            {
                ReferencedCategoriesDocument referencedCategories = referencedCategoriesFactory();
                await ReadReferencedCategoriesAsync(reader, referencedCategories, baseUri, new Uri(link, UriKind.RelativeOrAbsolute), version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);

                return(referencedCategories);
            }
        }
		public void WriteTo2 ()
		{
			var doc = new InlineCategoriesDocument ();
			var f = new AtomPub10CategoriesDocumentFormatter (doc);
			doc.Categories.Add (new SyndicationCategory ("TEST CATEGORY"));
			var sw = new StringWriter ();
			using (var xw = XmlWriter.Create (sw, settings))
				f.WriteTo (xw);
			Assert.AreEqual (app2, sw.ToString ());
		}
Beispiel #18
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 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     return(default(SyndicationCategory));
 }
		void ReadInlineCategoriesContent (InlineCategoriesDocument doc, XmlReader reader)
		{
			var cat = new SyndicationCategory ();
			atom10_formatter.ReadCategory (reader, cat);
			doc.Categories.Add (cat);
		}
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     return inlineCategories.CreateCategory ();
 }
        private static async Task ReadInlineCategoriesAsync(XmlReaderWrapper reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int _maxExtensionSize)
        {
            inlineCategories.BaseUri = baseUri;
            if (reader.HasAttributes)
            {
                while (reader.MoveToNextAttribute())
                {
                    if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
                    {
                        inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, await reader.GetValueAsync());
                    }
                    else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
                    {
                        inlineCategories.Language = await reader.GetValueAsync();
                    }
                    else if (reader.LocalName == App10Constants.Fixed && reader.NamespaceURI == string.Empty)
                    {
                        inlineCategories.IsFixed = (reader.Value == "yes");
                    }
                    else if (reader.LocalName == Atom10Constants.SchemeTag && reader.NamespaceURI == string.Empty)
                    {
                        inlineCategories.Scheme = await reader.GetValueAsync();
                    }
                    else
                    {
                        string ns   = reader.NamespaceURI;
                        string name = reader.LocalName;
                        if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
                        {
                            continue;
                        }
                        string val = await reader.GetValueAsync();

                        if (!TryParseAttribute(name, ns, val, inlineCategories, version))
                        {
                            if (preserveAttributeExtensions)
                            {
                                inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), await reader.GetValueAsync());
                            }
                        }
                    }
                }
            }

            await SyndicationFeedFormatter.MoveToStartElementAsync(reader);

            bool isEmptyElement = reader.IsEmptyElement;
            await reader.ReadStartElementAsync();

            if (!isEmptyElement)
            {
                XmlBuffer           buffer    = null;
                XmlDictionaryWriter extWriter = null;
                try
                {
                    while (await reader.IsStartElementAsync())
                    {
                        if (await reader.IsStartElementAsync(Atom10Constants.CategoryTag, Atom10Constants.Atom10Namespace))
                        {
                            SyndicationCategory category = CreateCategory(inlineCategories);
                            await Atom10FeedFormatter.ReadCategoryAsync(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, _maxExtensionSize);

                            if (category.Scheme == null)
                            {
                                category.Scheme = inlineCategories.Scheme;
                            }

                            inlineCategories.Categories.Add(category);
                        }
                        else if (!TryParseElement(reader, inlineCategories, version))
                        {
                            if (preserveElementExtensions)
                            {
                                var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize);

                                buffer    = tuple.Item1;
                                extWriter = tuple.Item2;
                            }
                            else
                            {
                                await reader.SkipAsync();
                            }
                        }
                    }
                    LoadElementExtensions(buffer, extWriter, inlineCategories);
                }
                finally
                {
                    if (extWriter != null)
                    {
                        extWriter.Close();
                    }
                }

                await reader.ReadEndElementAsync();
            }
        }
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
   return default(SyndicationCategory);
 }
        private static void ReadInlineCategories(XmlReader reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
        {
            inlineCategories.BaseUri = baseUri;
            if (reader.HasAttributes)
            {
                while (reader.MoveToNextAttribute())
                {
                    if ((reader.LocalName == "base") && (reader.NamespaceURI == "http://www.w3.org/XML/1998/namespace"))
                    {
                        inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, reader.Value);
                    }
                    else
                    {
                        if ((reader.LocalName == "lang") && (reader.NamespaceURI == "http://www.w3.org/XML/1998/namespace"))
                        {
                            inlineCategories.Language = reader.Value;
                            continue;
                        }
                        if ((reader.LocalName == "fixed") && (reader.NamespaceURI == string.Empty))
                        {
                            inlineCategories.IsFixed = reader.Value == "yes";
                            continue;
                        }
                        if ((reader.LocalName == "scheme") && (reader.NamespaceURI == string.Empty))
                        {
                            inlineCategories.Scheme = reader.Value;
                            continue;
                        }
                        string namespaceURI = reader.NamespaceURI;
                        string localName    = reader.LocalName;
                        if (!FeedUtils.IsXmlns(localName, namespaceURI) && !FeedUtils.IsXmlSchemaType(localName, namespaceURI))
                        {
                            string str3 = reader.Value;
                            if (!ServiceDocumentFormatter.TryParseAttribute(localName, namespaceURI, str3, inlineCategories, version))
                            {
                                if (preserveAttributeExtensions)
                                {
                                    inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), reader.Value);
                                    continue;
                                }
                                SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                            }
                        }
                    }
                }
            }
            SyndicationFeedFormatter.MoveToStartElement(reader);
            bool isEmptyElement = reader.IsEmptyElement;

            reader.ReadStartElement();
            if (!isEmptyElement)
            {
                XmlBuffer           buffer    = null;
                XmlDictionaryWriter extWriter = null;
                try
                {
                    while (reader.IsStartElement())
                    {
                        if (reader.IsStartElement("category", "http://www.w3.org/2005/Atom"))
                        {
                            SyndicationCategory category = ServiceDocumentFormatter.CreateCategory(inlineCategories);
                            Atom10FeedFormatter.ReadCategory(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, maxExtensionSize);
                            if (category.Scheme == null)
                            {
                                category.Scheme = inlineCategories.Scheme;
                            }
                            inlineCategories.Categories.Add(category);
                        }
                        else if (!ServiceDocumentFormatter.TryParseElement(reader, inlineCategories, version))
                        {
                            if (preserveElementExtensions)
                            {
                                SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNode(ref buffer, ref extWriter, reader, maxExtensionSize);
                                continue;
                            }
                            SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                            reader.Skip();
                        }
                    }
                    ServiceDocumentFormatter.LoadElementExtensions(buffer, extWriter, inlineCategories);
                }
                finally
                {
                    if (extWriter != null)
                    {
                        extWriter.Close();
                    }
                }
                reader.ReadEndElement();
            }
        }
        private static async Task WriteInlineCategoriesContentAsync(XmlWriter writer, InlineCategoriesDocument categories, string version)
        {
            writer = XmlWriterWrapper.CreateFromWriter(writer);
            if (!string.IsNullOrEmpty(categories.Scheme))
            {
                await writer.WriteAttributeStringAsync(Atom10Constants.SchemeTag, categories.Scheme);
            }
            // by default, categories are not fixed
            if (categories.IsFixed)
            {
                await writer.WriteAttributeStringAsync(App10Constants.Fixed, "yes");
            }

            await WriteAttributeExtensionsAsync(writer, categories, version);

            for (int i = 0; i < categories.Categories.Count; ++i)
            {
                await Atom10FeedFormatter.WriteCategoryAsync(writer, categories.Categories[i], version);
            }

            await WriteElementExtensionsAsync(writer, categories, version);
        }
 static void WriteInlineCategoriesContent(XmlWriter writer, InlineCategoriesDocument categories, string version)
 {
     if (!string.IsNullOrEmpty(categories.Scheme))
     {
         writer.WriteAttributeString(Atom10Constants.SchemeTag, categories.Scheme);
     }
     // by default, categories are not fixed
     if (categories.IsFixed)
     {
         writer.WriteAttributeString(App10Constants.Fixed, "yes");
     }
     WriteAttributeExtensions(writer, categories, version);
     for (int i = 0; i < categories.Categories.Count; ++i)
     {
         Atom10FeedFormatter.WriteCategory(writer, categories.Categories[i], version);
     }
     WriteElementExtensions(writer, categories, version);
 }
Beispiel #26
0
 protected static SyndicationCategory CreateCategory(InlineCategoriesDocument inlineCategories)
 {
     return(inlineCategories.CreateCategory());
 }
 private static void ReadInlineCategories(XmlReader reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
 {
     inlineCategories.BaseUri = baseUri;
     if (reader.HasAttributes)
     {
         while (reader.MoveToNextAttribute())
         {
             if ((reader.LocalName == "base") && (reader.NamespaceURI == "http://www.w3.org/XML/1998/namespace"))
             {
                 inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, reader.Value);
             }
             else
             {
                 if ((reader.LocalName == "lang") && (reader.NamespaceURI == "http://www.w3.org/XML/1998/namespace"))
                 {
                     inlineCategories.Language = reader.Value;
                     continue;
                 }
                 if ((reader.LocalName == "fixed") && (reader.NamespaceURI == string.Empty))
                 {
                     inlineCategories.IsFixed = reader.Value == "yes";
                     continue;
                 }
                 if ((reader.LocalName == "scheme") && (reader.NamespaceURI == string.Empty))
                 {
                     inlineCategories.Scheme = reader.Value;
                     continue;
                 }
                 string namespaceURI = reader.NamespaceURI;
                 string localName = reader.LocalName;
                 if (!FeedUtils.IsXmlns(localName, namespaceURI) && !FeedUtils.IsXmlSchemaType(localName, namespaceURI))
                 {
                     string str3 = reader.Value;
                     if (!ServiceDocumentFormatter.TryParseAttribute(localName, namespaceURI, str3, inlineCategories, version))
                     {
                         if (preserveAttributeExtensions)
                         {
                             inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), reader.Value);
                             continue;
                         }
                         SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                     }
                 }
             }
         }
     }
     SyndicationFeedFormatter.MoveToStartElement(reader);
     bool isEmptyElement = reader.IsEmptyElement;
     reader.ReadStartElement();
     if (!isEmptyElement)
     {
         XmlBuffer buffer = null;
         XmlDictionaryWriter extWriter = null;
         try
         {
             while (reader.IsStartElement())
             {
                 if (reader.IsStartElement("category", "http://www.w3.org/2005/Atom"))
                 {
                     SyndicationCategory category = ServiceDocumentFormatter.CreateCategory(inlineCategories);
                     Atom10FeedFormatter.ReadCategory(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, maxExtensionSize);
                     if (category.Scheme == null)
                     {
                         category.Scheme = inlineCategories.Scheme;
                     }
                     inlineCategories.Categories.Add(category);
                 }
                 else if (!ServiceDocumentFormatter.TryParseElement(reader, inlineCategories, version))
                 {
                     if (preserveElementExtensions)
                     {
                         SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNode(ref buffer, ref extWriter, reader, maxExtensionSize);
                         continue;
                     }
                     SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                     reader.Skip();
                 }
             }
             ServiceDocumentFormatter.LoadElementExtensions(buffer, extWriter, inlineCategories);
         }
         finally
         {
             if (extWriter != null)
             {
                 extWriter.Close();
             }
         }
         reader.ReadEndElement();
     }
 }
        private static void ReadInlineCategories(XmlReader reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, int maxExtensionSize)
        {
            inlineCategories.BaseUri = baseUri;
            if (reader.HasAttributes)
            {
                while (reader.MoveToNextAttribute())
                {
                    if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
                    {
                        inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, reader.Value);
                    }
                    else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
                    {
                        inlineCategories.Language = reader.Value;
                    }
                    else if (reader.LocalName == App10Constants.Fixed && reader.NamespaceURI == string.Empty)
                    {
                        inlineCategories.IsFixed = (reader.Value == "yes");
                    }
                    else if (reader.LocalName == Atom10Constants.SchemeTag && reader.NamespaceURI == string.Empty)
                    {
                        inlineCategories.Scheme = reader.Value;
                    }
                    else
                    {
                        string ns   = reader.NamespaceURI;
                        string name = reader.LocalName;
                        if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
                        {
                            continue;
                        }

                        string val = reader.Value;
                        if (!TryParseAttribute(name, ns, val, inlineCategories, version))
                        {
                            inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), reader.Value);
                        }
                    }
                }
            }
            SyndicationFeedFormatter.MoveToStartElement(reader);
            bool isEmptyElement = reader.IsEmptyElement;

            reader.ReadStartElement();
            if (!isEmptyElement)
            {
                XmlBuffer           buffer    = null;
                XmlDictionaryWriter extWriter = null;
                try
                {
                    while (reader.IsStartElement())
                    {
                        if (reader.IsStartElement(Atom10Constants.CategoryTag, Atom10Constants.Atom10Namespace))
                        {
                            SyndicationCategory category = CreateCategory(inlineCategories);
                            Atom10FeedFormatter.ReadCategory(reader, category, version, preserveAttributeExtensions: true, preserveElementExtensions: true, maxExtensionSize);
                            if (category.Scheme == null)
                            {
                                category.Scheme = inlineCategories.Scheme;
                            }
                            inlineCategories.Categories.Add(category);
                        }
                        else if (!TryParseElement(reader, inlineCategories, version))
                        {
                            SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNode(ref buffer, ref extWriter, reader, maxExtensionSize);
                        }
                    }
                    LoadElementExtensions(buffer, extWriter, inlineCategories);
                }
                finally
                {
                    extWriter?.Close();
                }
                reader.ReadEndElement();
            }
        }
 private static void WriteInlineCategoriesContent(XmlWriter writer, InlineCategoriesDocument categories, string version)
 {
     if (!string.IsNullOrEmpty(categories.Scheme))
     {
         writer.WriteAttributeString("scheme", categories.Scheme);
     }
     if (categories.IsFixed)
     {
         writer.WriteAttributeString("fixed", "yes");
     }
     ServiceDocumentFormatter.WriteAttributeExtensions(writer, categories, version);
     for (int i = 0; i < categories.Categories.Count; i++)
     {
         Atom10FeedFormatter.WriteCategory(writer, categories.Categories[i], version);
     }
     ServiceDocumentFormatter.WriteElementExtensions(writer, categories, version);
 }
 static void ReadInlineCategories(XmlReader reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
 {
     inlineCategories.BaseUri = baseUri;
     if (reader.HasAttributes)
     {
         while (reader.MoveToNextAttribute())
         {
             if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
             {
                 inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, reader.Value);
             }
             else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
             {
                 inlineCategories.Language = reader.Value;
             }
             else if (reader.LocalName == App10Constants.Fixed && reader.NamespaceURI == string.Empty)
             {
                 inlineCategories.IsFixed = (reader.Value == "yes");
             }
             else if (reader.LocalName == Atom10Constants.SchemeTag && reader.NamespaceURI == string.Empty)
             {
                 inlineCategories.Scheme = reader.Value;
             }
             else
             {
                 string ns = reader.NamespaceURI;
                 string name = reader.LocalName;
                 if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
                 {
                     continue;
                 }
                 string val = reader.Value;
                 if (!TryParseAttribute(name, ns, val, inlineCategories, version))
                 {
                     if (preserveAttributeExtensions)
                     {
                         inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), reader.Value);
                     }
                     else
                     {
                         SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                     }
                 }
             }
         }
     }
     SyndicationFeedFormatter.MoveToStartElement(reader);
     bool isEmptyElement = reader.IsEmptyElement;
     reader.ReadStartElement();
     if (!isEmptyElement)
     {
         XmlBuffer buffer = null;
         XmlDictionaryWriter extWriter = null;
         try
         {
             while (reader.IsStartElement())
             {
                 if (reader.IsStartElement(Atom10Constants.CategoryTag, Atom10Constants.Atom10Namespace))
                 {
                     SyndicationCategory category = CreateCategory(inlineCategories);
                     Atom10FeedFormatter.ReadCategory(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, maxExtensionSize);
                     if (category.Scheme == null)
                     {
                         category.Scheme = inlineCategories.Scheme;
                     }
                     inlineCategories.Categories.Add(category);
                 }
                 else if (!TryParseElement(reader, inlineCategories, version))
                 {
                     if (preserveElementExtensions)
                     {
                         SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNode(ref buffer, ref extWriter, reader, maxExtensionSize);
                     }
                     else
                     {
                         SyndicationFeedFormatter.TraceSyndicationElementIgnoredOnRead(reader);
                         reader.Skip();
                     }
                 }
             }
             LoadElementExtensions(buffer, extWriter, inlineCategories);
         }
         finally
         {
             if (extWriter != null)
             {
                 extWriter.Close();
             }
         }
         reader.ReadEndElement();
     }
 }
		void WriteInlineCategoriesContent (InlineCategoriesDocument doc, XmlWriter writer)
		{
			foreach (var cat in doc.Categories)
				atom10_formatter.WriteCategory (cat, writer);
		}