Add obsolete attribute on methods of ObjectListExtensions.

src/Hl7.Fhir.ElementModel/Hl7.Fhir.ElementModel.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 	<PropertyGroup>
-		<TargetFrameworks>net5.0;net45;netstandard1.6;netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>net5.0;net452;netstandard1.6;netstandard2.0</TargetFrameworks>
 	</PropertyGroup>
 
 	<Import Project="..\firely-net-common.props" />
@@ -15,7 +15,7 @@
 		<AssemblyName>Hl7.Fhir.ElementModel</AssemblyName>
 	</PropertyGroup>
 
-	<ItemGroup Condition=" '$(TargetFramework)' == 'net45' or '$(TargetFramework)' == 'netstandard1.6'">
+	<ItemGroup Condition=" '$(TargetFramework)' == 'net452' or '$(TargetFramework)' == 'netstandard1.6'">
 		<PackageReference Include="System.ValueTuple" Version="4.5.0" />
 	</ItemGroup>
 

src/Hl7.Fhir.Serialization/Hl7.Fhir.Serialization.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>net5.0;net45;netstandard1.6;netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>net5.0;net452;netstandard1.6;netstandard2.0</TargetFrameworks>
 	</PropertyGroup>
 
 	<Import Project="..\firely-net-common.props" />

src/Hl7.Fhir.Serialization/Utility/SerializationUtil.cs

@@ -11,6 +11,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
@@ -51,9 +52,9 @@ private static XDocument XDocumentFromReaderInternal(XmlReader reader, bool igno
 
         public static XDocument XDocumentFromReader(XmlReader reader, bool ignoreComments = true)
             => XDocumentFromReaderInternal(WrapXmlReader(reader, ignoreComments));
-        
+
         public static Task<XDocument> XDocumentFromReaderAsync(XmlReader reader, bool ignoreComments = true)
-            => Task.FromResult(XDocumentFromReaderInternal(WrapXmlReader(reader, ignoreComments, async:true)));
+            => Task.FromResult(XDocumentFromReaderInternal(WrapXmlReader(reader, ignoreComments, async: true)));
 
         /// <inheritdoc cref="JObjectFromReaderAsync(JsonReader)" />
         public static JObject JObjectFromReader(JsonReader reader)
@@ -125,9 +126,9 @@ public static async Task<JObject> JObjectFromJsonTextAsync(string json)
 
         public static XmlReader XmlReaderFromXmlText(string xml, bool ignoreComments = true)
             => WrapXmlReader(XmlReader.Create(new StringReader(SerializationUtil.SanitizeXml(xml))), ignoreComments);
-        
+
         public static Task<XmlReader> XmlReaderFromXmlTextAsync(string xml, bool ignoreComments = true)
-            => Task.FromResult(WrapXmlReader(XmlReader.Create(new StringReader(SerializationUtil.SanitizeXml(xml))), ignoreComments, async:true));
+            => Task.FromResult(WrapXmlReader(XmlReader.Create(new StringReader(SerializationUtil.SanitizeXml(xml))), ignoreComments, async: true));
 
         public static JsonReader JsonReaderFromJsonText(string json)
             => JsonReaderFromTextReader(new StringReader(json));
@@ -262,7 +263,7 @@ public static XDocument WriteXmlToDocument(Action<XmlWriter> serializer)
 
             return doc;
         }
-        
+
         public static async Task<XDocument> WriteXmlToDocumentAsync(Func<XmlWriter, Task> serializer)
         {
             var doc = new XDocument();
@@ -472,8 +473,15 @@ public static string[] RunFhirXhtmlSchemaValidation(XDocument doc)
             if (!doc.Root.AtXhtmlDiv())
                 return new[] { $"Root element of XHTML is not a <div> from the XHTML namespace ({XmlNs.XHTML})." };
 
+            if (!hasContent(doc.Root))
+                return new[] { $"The narrative SHALL have some non-whitespace content." };
+
             doc.Validate(_xhtmlSchemaSet.Value, (s, a) => result.Add(a.Message));
             return result.ToArray();
+
+            // content consist of xml elements with non-whitespace content (text or an image)
+            static bool hasContent(XElement el)
+                => el.DescendantsAndSelf().Any(e => !string.IsNullOrWhiteSpace(e.Value) || e.Name.LocalName == "img");
         }
 
         private static Lazy<XmlSchemaSet> _xhtmlSchemaSet = new Lazy<XmlSchemaSet>(compileXhtmlSchema, true);

src/Hl7.Fhir.Support.Poco/Hl7.Fhir.Support.Poco.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>net5.0;net45;netstandard1.6;netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>net5.0;net452;netstandard1.6;netstandard2.0</TargetFrameworks>
 	</PropertyGroup>
 
 	<Import Project="..\firely-net-common.props" />
@@ -16,11 +16,11 @@
 		<AssemblyName>Hl7.Fhir.Support.Poco</AssemblyName>
 	</PropertyGroup>
 
-	<ItemGroup Condition=" '$(TargetFramework)' != 'net45'">
+	<ItemGroup Condition=" '$(TargetFramework)' != 'net452'">
 		<PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
 	</ItemGroup>
 
-	<ItemGroup Condition=" '$(TargetFramework)' == 'net45'">
+	<ItemGroup Condition=" '$(TargetFramework)' == 'net452'">
 		<Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Net.Http"/>
   </ItemGroup>

src/Hl7.Fhir.Support.Tests/FhirPath/FhirPathTests.cs

@@ -6,6 +6,8 @@
  * available at https://raw.githubusercontent.com/FirelyTeam/firely-net-sdk/master/LICENSE
  */
 
+using FluentAssertions;
+using Hl7.Fhir.ElementModel;
 using Hl7.Fhir.FhirPath;
 using Hl7.FhirPath;
 using Hl7.FhirPath.Expressions;
@@ -17,19 +19,40 @@ namespace Hl7.Fhir.Support.Tests
     [TestClass]
     public class FhirPathTests
     {
-        [TestMethod]
-        public void ResolveOnEmptyTest()
+        private static FhirPathCompiler _compiler;
+
+        [ClassInitialize]
+        public static void ClassSetup(TestContext context)
         {
-            // resolve should handle an empty collection as input
             var symbolTable = new SymbolTable();
             symbolTable.AddStandardFP();
             symbolTable.AddFhirExtensions();
-            var compiler = new FhirPathCompiler(symbolTable);
-            var evaluator = compiler.Compile("{}.resolve()");
+            _compiler = new FhirPathCompiler(symbolTable);
+        }
 
+        [TestMethod]
+        public void ResolveOnEmptyTest()
+        {
+            // resolve should handle an empty collection as input
+            var evaluator = _compiler.Compile("{}.resolve()");
             var result = evaluator(null, FhirEvaluationContext.CreateDefault());
 
             Assert.IsFalse(result.Any());
         }
+
+        [DataTestMethod]
+        [DataRow("<div>Not empty</div>", false, "no XHTML namespace")]
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\"> </div>", false, "containing only whitespace")] 
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\">\t\n</div>", false, "containing only whitespace")] 
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\"></div>", false, "empty div element")] 
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\">Not empty</div>", true, "non empty div element with XHTML namespace")]
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\"><img src=\"fhir.gif\" alt=\"Fhir gif\"></img></div>", true, "containing an image element")]
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b><i> </i></b></p></div>", false, "no text")]
+        [DataRow("<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b><i> </i></b><img src=\"fhir.gif\" alt=\"Fhir gif\"></img></p></div>", true, "containing an image element")]
+        public void HtmlChecks(string xml, bool expected, string because)
+        {
+            var evaluator = _compiler.Compile("htmlChecks()");
+            evaluator.Predicate(ElementNode.ForPrimitive(xml), FhirEvaluationContext.CreateDefault()).Should().Be(expected, because);
+        }
     }
 }

src/Hl7.Fhir.Support.Tests/Hl7.Fhir.Support.Tests.csproj

@@ -22,7 +22,7 @@
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'net45' or '$(TargetFramework)' == 'net40' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net452' ">
     <Reference Include="System.ComponentModel.DataAnnotations" />
   </ItemGroup> 
 

src/Hl7.Fhir.Support.Tests/Utility/ObjectListExtensionTests.cs

@@ -5,8 +5,8 @@
 
 namespace Hl7.Fhir.Support.Tests
 {
+    [Obsolete("The class `ObjectListExtensions` is obsolete and will be removed in the next major release. Obsolete since 2021-09-22")]
     [TestClass]
-
     public class ObjectListExtensionTests
     {
         [TestMethod]

src/Hl7.Fhir.Support/Hl7.Fhir.Support.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>net5.0;net45;netstandard1.6;netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>net5.0;net452;netstandard1.6;netstandard2.0</TargetFrameworks>
 	</PropertyGroup>
 
 	<Import Project="..\firely-net-common.props" />
@@ -15,7 +15,7 @@
 		<AssemblyName>Hl7.Fhir.Support</AssemblyName>
 	</PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' != 'net45'">
+  <ItemGroup Condition=" '$(TargetFramework)' != 'net452'">
 		<PackageReference Include="System.Reflection.Emit.Lightweight" Version="4.7.0" />
 	</ItemGroup>
 </Project>

src/Hl7.Fhir.Support/Utility/ObjectList.cs

@@ -10,18 +10,19 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 
 namespace Hl7.Fhir.Utility
 {
     public static class ObjectListExtensions
     {
+        [Obsolete("This method is obsolete and will be removed in the next major release. Obsolete since 2021-09-22")]
         public static IEnumerable<object> OfType(this IEnumerable<object> me, Type t)
         {
             return me.Where(e => e.GetType() == t);
         }
 
+        [Obsolete("This method is obsolete and will be removed in the next major release. Obsolete since 2021-09-22")]
         public static void RemoveOfType(this IList<object> me, Type t)
         {
             var annotations = me.OfType(t).ToArray();

src/Hl7.Fhir.Support/Utility/SemVersion.cs

@@ -14,7 +14,7 @@ namespace Hl7.Fhir.Utility
     /// A semantic version implementation.
     /// Conforms with v2.0.0 of http://semver.org
     /// </summary>
-#if !NET45
+#if !NET452
     public sealed class SemVersion : IComparable<SemVersion>, IComparable
 #else
     [Serializable]
@@ -27,14 +27,14 @@ public sealed class SemVersion : IComparable<SemVersion>, IComparable, ISerializ
                 @"(?>\.(?<patch>\d+))?" +
                 @"(?>\-(?<pre>[0-9A-Za-z\-\.]+))?" +
                 @"(?>\+(?<build>[0-9A-Za-z\-\.]+))?$",
-#if !NET45
+#if !NET452
                 RegexOptions.CultureInvariant | RegexOptions.ExplicitCapture
 #else
                 RegexOptions.CultureInvariant | RegexOptions.Compiled | RegexOptions.ExplicitCapture
 #endif
                 );
 
-#if NET45
+#if NET452
 #pragma warning disable CA1801 // Parameter unused
         /// <summary>
         /// Deserialize a <see cref="SemVersion"/>.
@@ -479,7 +479,7 @@ public override int GetHashCode()
             }
         }
 
-#if NET45
+#if NET452
         /// <summary>
         /// Populates a <see cref="SerializationInfo"/> with the data needed to serialize the target object.
         /// </summary>

src/Hl7.FhirPath/Hl7.FhirPath.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>net5.0;net45;netstandard1.6;netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>net5.0;net452;netstandard1.6;netstandard2.0</TargetFrameworks>
 	</PropertyGroup>
 
 	<Import Project="..\firely-net-common.props" />

src/firely-net-common.props

@@ -2,8 +2,8 @@
 
   <!-- Solution-wide properties for NuGet packaging -->
   <PropertyGroup>
-    <VersionPrefix>3.5.0</VersionPrefix>
-    <VersionSuffix></VersionSuffix>
+    <VersionPrefix>3.5.1</VersionPrefix>
+    <VersionSuffix>alpha</VersionSuffix>
     <Authors>Firely (info@fire.ly) and contributors</Authors>
     <Company>Firely (https://fire.ly)</Company>
     <Copyright>Copyright 2013-2021 Firely.  Contains materials (C) HL7 International</Copyright>