Simon Peyton Jones wrote:
> anywhere, I think. You might want a new HsSyn data type for "list with
> possible leading or trailing commas":
>
> data HsCommadList a
> = HCL
> Int -- Number of leading commas
> [a]
> Int -- Number of trailing commas
>
If we're going to go to the trouble of supporting extra leading and
trailing commas, why not also support extra commas in the middle? That way,
#include "theseexports"
,
#include "thoseexports"
doesn't have to worry about how these and those exports are listed.
David
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