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Date: Fri, 30 Oct 2009 17:09:41 +0100
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From: Rudolf Sykora <rudolf.sykora@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] hoc's behaviour, unary operators
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2009/10/30 Jorden Mauro <jrm8005@gmail.com>:
> Look under the production for expr in /sys/src/cmd/hoc/hoc.y
>
> Looks like the unary plus problem would be a one-line fix. The -- with no space
> may be harder to fix.

Thanks, I will.

Nonetheless, the problem, as I am thinking about it now, could
possibly (also) be connected to ++ and -- operators, as in
a++, a--
where 'a' is some variable.
Although the meaning for e.g.
a--b
is still only one, i.e.
a - (-b),
(a-- b wouldn't make sense) it probably can't (can it?) be parsed
simply with yacc...

Ruda