[racket] lexer-src-pos reports position as #f #f

From: Johnny Morrice (spoon at killersmurf.com)
Date: Tue May 24 19:03:18 EDT 2011

Before any one else replies, Jay set me straight!

I was a matter of me failing to absorb information from the docs.
It's midnight here, and it makes me fail.

port-count-lines! was what I needed.

Apologies for wasting your time.


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