Terminal emulator for ASR-33.
Features:
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Pygame and Tkinter frontends.
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Backends for pty (Linux/Mac) and ssh (Paramiko library)
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Limits output to an authentic 10 characters per second. Hit F5 to make it go faster (toggle on tkinter frontend, hold on pygame)
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Sound (with the pygame frontend)! If it's too loud, hit F7 to close the lid.
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Scrolling (with page up and down - tkinter frontend has a scrollbar)
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Output a form feed to clear everything
Various bugs and to-dos:
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No user interface to select between frontends and backends. For now, edit the script.
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Speed throttling (whether through the backend or throttle.py) does not work well on Linux. It works on WSL, and the last time I checked this technique worked on macOS. You'll still get the 10-chars-per-second output, but interrupting long outputs won't work.
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Most of the fun termios functions (echoprt, echok, kill, reprint, discard) don't work on WSL
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Add tty-37 support (half lines, reverse line feed, and lowercase). For now, the forced uppercase can be disabled by editing the upper() function
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Add backends for wslbridge and msys/cygwin.
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Improve graphics, better font, allow "ink spread" for overstruck bold.
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Simulate classical 'stty lcase' line discipline for input of upper/lowercase letters and
`{|}~(part or all of this are broken in modern OSes) -
Discard and regenerate scrollback to limit memory usage. The AbstractLine class I created should be useful for this, but nothing is hooked up.