[plt-scheme] (v4) wildcard not allowed in expression

From: Jos Koot (jos.koot at telefonica.net)
Date: Mon Jun 23 20:39:18 EDT 2008

It works for me though:

#lang scheme

(define-syntax x
 (syntax-rules ()
  ((_ 1 _) 'one)
  ((_ _ 2) 'two)))

(x 1 monkey) ; one
(x monkey 2) ; two

Welcome to DrScheme, version [3m].
Language: Module.

  ----- Original Message ----- 
  From: YC 
  To: pltscheme 
  Sent: Tuesday, June 24, 2008 12:32 AM
  Subject: [plt-scheme] (v4) wildcard not allowed in expression

  Hi - 

  It seems that in v4 `_` can no longer exist in the expression position for syntax-case, is there a reason for the change? 



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