+<INITIAL> "[" => (Tokens.LBRACKET (yypos, yypos + size yytext));
+<INITIAL> "]" => (Tokens.RBRACKET (yypos, yypos + size yytext));
+<INITIAL> "->" => (Tokens.ARROW (yypos, yypos + size yytext));
+<INITIAL> "." => (Tokens.DOT (yypos, yypos + size yytext));
+