Added VDF Generator

007SaveTool/VdfGenerator/KeyValue/KeyValueDeserializer.cs

@@ -0,0 +1,55 @@
+using EonaCat.FirstLight.SaveTransfer.VdfGenerator.KeyValue.Models;
+
+namespace EonaCat.FirstLight.SaveTransfer.VdfGenerator.KeyValue;
+
+/// <summary>
+/// Provides static methods for deserializing text representations of key-value groups into KvGroup objects.
+/// </summary>
+public static class KeyValueDeserializer
+{
+    /// <summary>
+    /// Deserializes the specified text into a KvGroup object.
+    /// </summary>
+    /// <param name="text">The input string containing the serialized representation of a KvGroup. Cannot be null.</param>
+    /// <returns>A KvGroup object that represents the data contained in the input text.</returns>
+    public static KeyValueGroup Deserialize(string text)
+    {
+        var tokenizer = new KeyValueTokenizer(text);
+        return ParseGroup(tokenizer);
+    }
+
+    /// <summary>
+    /// Parses a group from the provided tokenizer, including any nested groups or key-value pairs.
+    /// </summary>
+    /// <param name="t">The tokenizer used to read group names, symbols, and key-value pairs from the input stream. Must not be null and must be positioned at the start of a group.</param>
+    /// <param name="k">The optional name of the group to parse. If null, the group name is read from the tokenizer.</param>
+    /// <returns>A KvGroup representing the parsed group, including all nested groups and key-value pairs.</returns>
+    private static KeyValueGroup ParseGroup(KeyValueTokenizer t, string? k = null)
+    {
+        // Expect group name
+        var groupName = k ?? t.ReadString();
+        var group = new KeyValueGroup(groupName);
+
+        t.ReadSymbol('{');
+
+        while (!t.PeekSymbol('}'))
+        {
+            var key = t.ReadString();
+
+            if (t.PeekSymbol('{'))
+            {
+                // Nested group
+                group.Nodes.Add(ParseGroup(t, key));
+            }
+            else
+            {
+                // Key-value pair
+                var value = t.ReadString();
+                group.Nodes.Add(new Models.KeyValuePair(key, value));
+            }
+        }
+
+        t.ReadSymbol('}');
+        return group;
+    }
+}