Remove XML from UIXA parsing

libs/UIX.Asm/Lexer.Directives.cs

@@ -57,31 +57,6 @@ partial class Lexer
 
                 input = Parse.Char('=').Token()(input).Remainder;
 
-                // Types that can't be encoded as simple strings, such as FlowLayout,
-                // are defined inline using XML elements.
-                bool isInlineXml = Parse.Char('<')(input).WasSuccessful;
-                if (isInlineXml)
-                {
-                    // Find the end of the XML tag
-                    var xmlPartResult = Parse.AnyChar.Until(Parse.String("/>")).Text()(input);
-                    input = xmlPartResult.Remainder;
-                    if (!xmlPartResult.WasSuccessful)
-                        return Result.Failure<IDirective>(input, "Invalid constant directive", ["Expected valid XML"]);
-
-                    var xmlElem = System.Xml.Linq.XElement.Parse($"{xmlPartResult.Value}/>");
-                    var xmlPrefix = xmlElem.Name.NamespaceName == string.Empty
-                        ? null : xmlElem.Name.NamespaceName;
-
-                    QualifiedTypeName typeName = new(xmlPrefix, xmlElem.Name.LocalName);
-                    var content = xmlElem.ToString(System.Xml.Linq.SaveOptions.DisableFormatting);
-
-                    directive = new ConstantDirective(constNameResult.Value, typeName, content)
-                    {
-                        Line = line,
-                    };
-                }
-                else
-                {
                 var typeNameResult = QualifiedTypeName.Token()(input);
                 input = typeNameResult.Remainder;
                 if (!typeNameResult.WasSuccessful)
@@ -201,7 +176,6 @@ partial class Lexer
                 {
                     return Result.Failure<IDirective>(input, "Invalid constant directive", [$"Invalid persist mode"]);
                 }
-                }
                 break;
 
             case "EXPORT":

libs/UIX.Asm/UIX.Asm.csproj

@@ -32,6 +32,8 @@
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
         </PackageReference>
+
+        <PackageReference Include="System.Memory" Version="4.6.0" />
     </ItemGroup>
 
 </Project>