re2c test runner in Python (skeleton test)

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HTML:

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Markdown:

[![asciicast](https://asciinema.org/a/420503.svg)](https://asciinema.org/a/420503)

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asciinema play 420503.cast

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<html>
<head>
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</head>
<body>
  <div id="player"></div>
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  <script>
    AsciinemaPlayer.create(
      '/assets/420503.cast',
      document.getElementById('player'),
      { cols: 235, rows: 74 }
    );
  </script>
</body>
</html>

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agg https://asciinema.org/a/420503 demo.gif

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agg demo.cast demo.gif

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See agg manual for full usage instructions.