title: PlantUML component diagam port
body: <p>Is there any possible way to create component port in the component diagram?</p>
  
  <p>If port has to be attached to only one arrow, its easy, because I can use <code>#--</code> arrow.</p>
  
  <pre><code>interface y
  [x] #- y
  </code></pre>
  
  <p>The problem is, if I try to attach to arrows to one port. I tried to use <code>rectangle</code>, but its not on the border then.</p>
  
  <pre><code>rectangle " " as P
  [Component] - P
  
  interface I1
  interface I2
  
  P - I1
  P -- I2
  </code></pre>
  
  <p>Do you know any better workarounds?</p>