[racket] Not eof evt...

From: Curtis Dutton (curtdutt at gmail.com)
Date: Sat Nov 19 12:21:21 EST 2011

I see that there is an eof-evt that goes ready once an input port hits eof.

I am in need of an event for an input port, that is ready only when a
non-eof would be read from that port, and is never ready once an eof is hit.

For some reason, I'm having difficulty composing my own (like say by using

Does anybody know of a nice way of doing this?

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