- Abstracted the XML-HTML Parser into a neat little state machine

- Added Settings classes for all things XML-HTML conversion

HaWeb/Settings/ParsingState/LetterState.cs

@@ -0,0 +1,60 @@
+namespace HaWeb.Settings.ParsingState;
+
+using HaDocument.Interfaces;
+using HaXMLReader.Interfaces;
+using HaXMLReader.EvArgs;
+using HaDocument.Models;
+using System.Text;
+using System.Collections.Immutable;
+using System.Linq;
+using System.Xml.Linq;
+
+public class LetterState : HaWeb.HTMLParser.IState {
+     // Input
+    internal ILibrary Lib;
+    internal IReaderService ReaderService;
+    internal Meta Meta;
+
+    internal IEnumerable<Marginal>? Marginals;
+
+    // State
+    internal bool active_del;
+    internal bool active_skipwhitespace;
+    internal string currline;
+    internal string currpage;
+    internal string oldpage;
+    internal int commid;
+
+    // Parsing-Combinations
+    internal StringBuilder sb_lettertext;    // Hauptext
+    internal StringBuilder sb_linecount;     // Linke Spalte (Zeilenzählung)
+    internal StringBuilder sb_marginals;     // Rechte Spalte (Kommentare)
+
+
+    public LetterState(ILibrary lib, IReaderService readerService, Meta meta, IEnumerable<Marginal>? marginals) {
+        Lib = lib;
+        ReaderService = readerService;
+        Meta = meta;
+        Marginals = marginals;
+
+        SetupState();
+    }
+
+
+    public void SetupState() {
+        sb_lettertext = new StringBuilder();
+        sb_linecount = new StringBuilder();
+        sb_marginals = new StringBuilder();
+
+        active_skipwhitespace = true;
+        currline = "-1";
+        currpage = "";
+        oldpage = "";
+        commid = 1;
+
+        // Initialize State
+        if (Meta.ZH != null) {
+            currpage = Meta.ZH.Page;
+        }
+    }
+}