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Re: Ternary operator patch

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Ryota Hirose <hirose.ryota@gmail.com> writes:
> Hello Lua Hackers,
>
> 2010年9月16日 David Kastrup <dak@gnu.org>
>
> > In the view point of the parser, the logical operator 'and' has
> > higher priority than 'or', but, for programmers, a ternary
> operator
> > must have lower priority than logical operator.
> 
> Why?
>
>
> Because, the first operand of a ternary operator is a conditional
> expression.  In a conditional expression, we want to use logical
> operators frequently, and unnecessary parenthesis are unwelcome.
You have conveniently snipped the rest of my post.
I wrote:
 Lua has quite fewer operator priorities than C (and Pascal has even
 fewer), and I should like to see evidence that more people get
 confused by the operator priorities of Pascal than those of C.
C has perfected avoidance of the "unnecessary parenthesis" to the degree
where compilers warn if you actually make use of the fine-grained
priorities, as you are more likely than not to get them wrong.
-- 
David Kastrup

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