svg/path/closepath/segment-completing-ref.svg

<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg"
     width="300" height="200">
  <style>
    path {
      stroke: blue;
    }
  </style>
  <path d="M 10 10 z m 20 70 h 10 v 10 h -10 l 0 -10 M 70 30 q 20 0 20 20 t -20 20 t -20 -20 T 70 30" />
</svg>