<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16481" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi,</FONT></DIV> <DIV><FONT face=Arial size=2>A question: Consider two modules like<BR>         <BR>(module flavour-A mzscheme<BR>       <BR> some flavour-A specific definitions defining a representation<BR> <BR> a longer text defining and providing a number of representation independent procedures using the representation)</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Idem for representation B with exactly the same<BR>representation independent part.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>In order to avoid duplication of the<BR>representation independent part,<BR>i did the following:</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>(module representation-independent mzscheme<BR> (define-syntax representation-independent<BR>  (syntax-rules ()<BR>   ((_ all identifiers defining the representation)<BR>    (begin<BR>     representation independent code)))))</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>(module flavout-A mzscheme<BR> (require representation-independent)<BR> representation definitions<BR> (representation-independent<BR>  all identifiers defining the representation))</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Same for flavour B representation</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>This works allright. However, a disadvantage is that in module representation-indepenent the check-syntax tool cannot give much information because all code is in a template. Is there a smarter way to accomplish my goal? I rather like to avoid going back to units.<BR>Best wishes, Jos koot.<BR></FONT></DIV></BODY></HTML>