On 1/14/13, Alan Manuel Gloria <almkg...@gmail.com> wrote:
> On 1/11/13, David A. Wheeler <dwhee...@dwheeler.com> wrote:
>> I said:
>>> > 2. In an earlier email discussion we discussed how to interpret
>>> > "(head|empty) DOLLAR comment_eol"; the current BNF production reflects
>>> > that. However, I'm now leaning toward making that be an error.
>>
>> John Cowan:
>>> I agree again. I think it's very important not to fall into the trap
>>> of "Well, this syntax has no current meaning, but I see how it could
>>> possibly mean X, so let's make it mean X." In such situations, I think
>>> it is far better for the syntax in question to be an error. If every
>>> possible syntax is meaningful, then there is no hope of intuitive error
>>> detection, still less error correction, an important property of a truly
>>> readable syntax.
>>
>> Yes indeed.
>>
>> I think unless Alan Manuel K. Gloria (or someone else) makes a strong
>> case
>> for keeping things as-is, "DOLLAR comment_eol" is going away.
>> We should document this (and why) in the SRFI, whatever ends up
>> happening.
>
> Not gonna (^^)v. As I originally conceived, DOLLAR is supposed to be used:
>
> foo $ bar nitz $ quux fobar
> -->
> (foo (bar nitz (quux fobar)))
>
> or even:
>
> define foo(bar) $ cond
> { bar < 42 } $ begin
> do-bar-less-than-42 bar
> whatever
> else $ begin
> do-bar-greater-than-42 bar
> whatnot
>
> I can't really conceive of a use of $ at the end of the line.
Oh, and maybe we should call it "SUBLIST" instead of "DOLLAR". (^^)
Sincerely,
AmkG
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