Fix detection of tag type for unquoted string values

lib/nbt/Tag.dart

@@ -41,14 +41,19 @@ enum TagType {
     return TagType.End;
   }
 
+  static const ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
   static TagType getStringifiedTagType(StringReader reader) {
     reader.startSeek();
     TagType ret = TagType.End;
     bool isNumber = true;
+    bool isAlpha = true; // Is digits only
 
     // Start to determine the next tag type
     while (reader.canRead && ret == TagType.End) {
       var val = reader.next().toUpperCase();
+      if (ALPHABET.indexOf(val) == -1) isAlpha = false;
+
       switch (val) {
         case "{":
           {
@@ -137,6 +142,8 @@ enum TagType {
     }
 
     reader.endSeek();
+    if (!isNumber && isAlpha) ret = TagType.String;
+
     return ret;
   }
 }

pubspec.yaml

@@ -1,6 +1,6 @@
 name: libac_dart
 description: "Aria's Creations code library"
-version: 1.0.36
+version: 1.0.37
 homepage: "https://zontreck.com"