<!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 6.00.2800.1400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi,</FONT></DIV> <DIV><FONT face=Arial size=2>I still use version 103p and have a macro that defines syntaxes by means of define-syntax. It works fine. As a simplified example:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2><BR>(define-macro syntax-maker<BR> (lambda (name . clauses)<BR> `(define-syntax ,name<BR>   (syntax-rules ()<BR>   ,@clauses<BR>   ((,name x ...) ; catch all other patterns<BR>    (list 'error "in syntactic form:" '(,name 'x ...)))))))<BR>(syntax-maker monkey ((monkey x y ...) '("monkey" x y ...)))<BR>(monkey 1 2 3) --> ("monkey" 1 2 3)<BR>(monkey) --> (error "in syntactic form:" (monkey))</DIV> <DIV> </DIV> <DIV>This cannot be rewritten as:</DIV> <DIV> </DIV> <DIV>(define-syntax syntax-maker<BR> (syntax-rules ()<BR>  ((syntax-maker name (pattern template) ...)<BR>   (define-syntax name<BR>    (syntax-rules ()<BR>     (pattern template) ...<BR>      ((name x ...); catch all other patterns ; <=== wrong<BR>       (list 'error "in syntactic form:" '(,name 'x ...))) <=== wrong<BR>     )))))<BR>(syntax-maker monkey ((monkey x ...) (list "monkey" 'x ...)))<BR>(monkey 1 2 3) --> raises an error-exception, of course</DIV> <DIV> </DIV> <DIV>This is wrong because the outer define-syntax form wants to spline the syntactic variable 'x' in the marked lines. Is there a work-around (other than using define-macro for the outer form)? Id est, how can I insert an ellipsis in the inner define-syntax form without the outer one noticing it? Or is there a reason why I should not want it?</DIV> <DIV> </DIV> <DIV>Thanks in advance.</DIV> <DIV>Jacob Koot.</FONT></DIV></BODY></HTML>