title: Is there a way to cut up a string by whitespace?
body: <p>I'm trying to automatically split up a string by line, and then by whitespace for use in a Vec of Vec3.</p>
  <pre><code>v 0.500000 0.500000 -0.500000
  v 0.500000 -0.500000 -0.500000
  v 0.500000 0.500000 0.500000
  v 0.500000 -0.500000 0.500000
  v -0.500000 0.500000 -0.500000
  v -0.500000 -0.500000 -0.500000
  v -0.500000 0.500000 0.500000
  v -0.500000 -0.500000 0.500000
  vt 0.875000 0.500000
  vt 0.625000 0.750000
  vt 0.625000 0.500000
  </code></pre>
  <p>For example, given this sample, I would want to discard lines starting with &quot;vt&quot;, and store the coordinates from the lines starting with &quot;v&quot;.</p>