modify toml4j fork to automatically add new fields without overwriting previous ones and setup motd

proxy/src/main/java/dev/plex/toml/Keys.java

@@ -0,0 +1,69 @@
+package dev.plex.toml;
+
+import java.util.ArrayList;
+import java.util.List;
+
+class Keys {
+  
+  static class Key {
+    final String name;
+    final int index;
+    final String path;
+
+    Key(String name, int index, Key next) {
+      this.name = name;
+      this.index = index;
+      if (next != null) {
+        this.path = name + "." + next.path;
+      } else {
+        this.path = name;
+      }
+    }
+  }
+
+  static Key[] split(String key) {
+    List<Key> splitKey = new ArrayList<Key>();
+    StringBuilder current = new StringBuilder();
+    boolean quoted = false;
+    boolean indexable = true;
+    boolean inIndex = false;
+    int index = -1;
+    
+    for (int i = key.length() - 1; i > -1; i--) {
+      char c = key.charAt(i);
+      if (c == ']' && indexable) {
+        inIndex = true;
+        continue;
+      }
+      indexable = false;
+      if (c == '[' && inIndex) {
+        inIndex = false;
+        index = Integer.parseInt(current.toString());
+        current = new StringBuilder();
+        continue;
+      }
+      if (isQuote(c) && (i == 0 || key.charAt(i - 1) != '\\')) {
+        quoted = !quoted;
+        indexable = false;
+      }
+      if (c != '.' || quoted) {
+        current.insert(0, c);
+      } else {
+        splitKey.add(0, new Key(current.toString(), index, !splitKey.isEmpty() ? splitKey.get(0) : null));
+        indexable = true;
+        index = -1;
+        current = new StringBuilder();
+      }
+    }
+    
+    splitKey.add(0, new Key(current.toString(), index, !splitKey.isEmpty() ? splitKey.get(0) : null));
+    
+    return splitKey.toArray(new Key[0]);
+  }
+  
+  static boolean isQuote(char c) {
+    return c == '"' || c == '\'';
+  }
+
+  private Keys() {}
+}