[plt-scheme] Nested macros and (... ...)

2009/3/5 Chongkai Zhu <czhu at cs.utah.edu>

> James Coglan wrote:
>
>>
>> Am I right in thinking that (... ...) is a way of placing a literal ... in
>> the expansion without it being treated as a repetition pattern by the first
>> expansion?
>>
>>
> Yep.



Cool, thanks. Is this peculiar to PLT, or is it more widely used? Also (and
I realise this may be contrived), if you were to nest macros three or more
levels deep, how would you escape the '...' at each level of nesting?
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