private static boolean shouldCloseBrace(Editor editor, int offset, char c) {
    CharSequence text = editor.getDocument().getCharsSequence();

    if (offset < 2) return false;
    if (c != '{' || text.charAt(offset - 2) != '$') return false;

    if (offset < text.length()) {
      char next = text.charAt(offset);
      if (next == '}') return false;
      if (Character.isLetterOrDigit(next)) return false;
    }

    return true;
  }
private static boolean shouldCloseBrace(Editor editor, int offset, char c)