Andrew Peterson wrote:

SBCL 1.0.12 CL-USER> (require :parenscript) NIL CL-USER> (ps:ps (in p o)) "p IN o;" CL-USER>

"in" should be lower case.

I tried both the tar version parenscript-20071104 and the latest version at http://common-lisp.net/project/parenscript/repository/parenscript/

Thanks for the report. I pushed a fix for this and a new unit test to the repository.

Cheers,

-- Travis