From: Gregory Brown <gregory.t.brown@...>
Date: 2007-07-23T10:16:18+09:00
Subject: Re: Parsing bug with 'return not' (was, Syntax bug)

On 7/22/07, Good Night Moon <no.email.here@zombo.com> wrote:
> On Sun, 22 Jul 2007 03:50:01 -0400, Bil Kleb wrote:
> >>   myrect.rb:8: syntax error, unexpected kNOT, expecting kEND
> >>       return  not ((other.x1 < self.x0 or self.x1 < other.x0) and
> >
> > You need to use the '!' operator instead of the 'not' "conjunction".
> > It's a precedence thing -- the parser is seeing 'return not' -- see
> > parse.y in the source.
>
> Thanks, maybe I'll look. It's not just precedence though, or else
> 'return' itself is part of it:

if binds differently than return.  It is precedence.