Moved BindingGenerator from gen html project. It makes more sense here.

Sources/HRW/swiftxml.swift

@@ -27,14 +27,16 @@ final class EmptyStringError: Error, Sendable {
     init() { }
 }
 
-final class XmlError: Error, Sendable {
+final class XmlError: Error, Sendable, CustomStringConvertible {
+    var description: String { get {errorDescription ?? "XMLError"} }
+    
     
     let message: String
     let line:Int
     let column:Int
     
     init(_ message: String, _ line:Int, _ column:Int) {
-        self.message = "\(line):\(column) \(message)"
+        self.message = "\(line):\(column): \(message)"
         self.line = line
         self.column = column
     }
@@ -386,6 +388,9 @@ public class XMLParser
     }*/
     
     public init?(str:String) {
+        if (str.isEmpty) {
+            return nil
+        }
         iterator = str.unicodeScalars.makeIterator()
         position = Position()
     }
@@ -438,6 +443,8 @@ public class XMLParser
                     switch state {
                         case .end_markup:
                             return nil
+                        case .data:
+                            return nil
                         default:
                             throw XmlError("unexpected end of stream inside markup structure", position.line, position.column)
                     }