The error given depends on your Lisp implementation. SBCL gives me: The variable X is unbound. [Condition of type UNBOUND-VARIABLE] However, this does highlight a very interesting point I didn't realize before: ParenScript macroexpansion does take place in the Lisp environment, so there could be unintended "leaks" between the two this way. For example: (defvar *foo* 123) (ps (macrolet ((blah () *foo*)) (blah))) => "123; " Which may or may not be what you want. Vladimir On 9/13/07, Daniel Gackle <danielgackle@gmail.com> wrote:

When a macroexpansion tries to evaluate an unbound variable, as in the following,

(ps (macrolet ((blah () x)) (blah)))

the resulting error message is unhelpful: "Attempt to take the car of "Unbound Value" which is not listp."

Could it say "Attempt to take the value of the unbound variable X" instead?

Daniel

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