[plt-scheme] I don't understand libraries

From: Jon Stenerson (jonstenerson at comcast.net)
Date: Sun May 16 01:04:35 EDT 2010

Why does this print "foo" three times? I'm using drscheme and the module
language. Is lib being read three separate times when I press ctrl-t? Or
is foo being defined three times? Or what? I don't get it.


(library (lib)

  (export x)
  (import (rnrs))
  (define x 0)
  (define-syntax foo (display "foo\n") )

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