--* From postmaster%watson.vnet.ibm.com@yktvmv.watson.ibm.com Tue Jun 8 06:54:25 1993 --* Received: from yktvmv2.watson.ibm.com by radical.watson.ibm.com (AIX 3.2/UCB 5.64/900524) --* id AA15352; Tue, 8 Jun 1993 06:54:25 -0400 --* X-External-Networks: yes --* Received: from watson.vnet.ibm.com by yktvmv.watson.ibm.com (IBM VM SMTP V2R3) --* with BSMTP id 6393; Tue, 08 Jun 93 06:55:01 EDT --* Received: from YKTVMV by watson.vnet.ibm.com with "VAGENT.V1.0" --* id --* for asbugs@watson; Tue, 08 Jun 93 06:55:01 -0400 --* Received: from bernina.ethz.ch by watson.ibm.com (IBM VM SMTP V2R3) with TCP; --* Tue, 08 Jun 93 06:54:59 EDT --* Received: from neptune by bernina.ethz.ch with SMTP inbound id <13238-0@bernina.ethz.ch>; Tue, 8 Jun 1993 12:54:51 +0200 --* From: Philip Santas --* Received: from rutishauser.inf.ethz.ch (rutishauser-gw.inf.ethz.ch) by neptune id AA08253; Tue, 8 Jun 93 12:54:46 +0200 --* Date: Tue, 8 Jun 93 12:54:45 +0200 --* Message-Id: <9306081054.AA15897@rutishauser.inf.ethz.ch> --* Received: from ru7.inf.ethz.ch.rutishauser by rutishauser.inf.ethz.ch id AA15897; Tue, 8 Jun 93 12:54:45 +0200 --* To: smwatt@watson.ibm.com, asbugs@watson.ibm.com --* Subject: Re: BLANK --* In-Reply-To: Mail from 'smwatt@watson.ibm.com (Stephen Watt)' --* dated: Mon, 7 Jun 1993 22:51:32 -0400 --* Cc: bronstein, santas --@ Fixed by: SSD Wed Jun 29 16:16:33 EDT 1994 --@ Tested by: none --@ Summary: While the grammar used by the parser allows : , later checking enforces the constraint that cannot appear on the left of a declaration. >BLANK is a question mark token, not white space. Then somethings strange happens. Rule E11(X) defines E11(X) : E12h Now X here is only E12 which can be Id, and BLANK is member of Id. This means that ? : SmallInteger should be allowed. But I get the following error: "test9.as", line 1: ? : SI ^ [L1 C1] (Error) Improper form appearing within a declaration. Philip