[plt-scheme] stumped with parser-tools

From: Simon Michael (simon at joyful.com)
Date: Tue Jul 22 20:04:36 EDT 2008

Good day all. I'm trying to learn parser-tools, as a 
stronger-than-regexps tool for general parsing needs.

http://paste.lisp.org/display/64069 shows a very simple grammar which is 
supposed to successfully parse "test", but fails with the error shown. I 
started from examples/calc.ss and have stared at all the examples, but 
can't see the reason for this error. Any insight welcome!

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