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000166_icon-group-sender_Tue Dec 24 12:31:45 2002.msg
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Return-Path: <icon-group-sender>
Received: (from root@localhost)
by baskerville.CS.Arizona.EDU (8.11.1/8.11.1) id gBOJVho06509
for icon-group-addresses; Tue, 24 Dec 2002 12:31:43 -0700 (MST)
Message-Id: <200212241931.gBOJVho06509@baskerville.CS.Arizona.EDU>
From: "Andrew Hamm" <ahamm@mail.com>
X-Newsgroups: comp.lang.icon
Subject: Re: Scanning question
Date: Tue, 24 Dec 2002 11:03:42 +1100
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To: icon-group@cs.arizona.edu
Errors-To: icon-group-errors@cs.arizona.edu
Status: RO
ernobe wrote:
> Can a scanning operation be done within a conjunction? It seems that
> backtracking into it does not produce the next result but begins the
> scanning over again. And if the '?' scanning expression is put out
> of the conjunction, the part that is left in it sets the position
> back to where it was before scanning when the other expressions in
> the conjunction are evaluated.
A sample of code please? Conjunction does backtrack so probably you are
doing something to break the scan.