This page is part of the web mail archives of SRFI 93 from before July 7th, 2015. The new archives for SRFI 93 contain all messages, not just those from before July 7th, 2015.
David Feuer skrev:
I think Petrofsky's suggestion for handling ellipses (SRFI-46) is far cleaner that the one in the SRFI-93 draft. For syntax-rules macros, I would recommend adopting the SRFI-46 method, or something very similar to it. As well as being easier to understand, I believe that the current proposal would be expressible in Petrofsky's syntax, but that the converse does not hold. For syntax-case macros, I think we should take the opportunity to go all the way with Petrofsky's idea, and make the ellipsis identifier a required argument to SYNTAX-CASE.
The only place (... ...) is needed is in macro-defining macros, which aren't too common. A search through the PLT code base for (... ...) versus a search for ... gives a good impression of how uncommon it is. In my opinion it would therefore be annoying to the specify the ellipsis in the "boiler plate" every time I need to define a standard macro. Furthermore with-syntax lets you choose your own ellipsis, when you need to define a macro-defining macro: (with-syntax ((::: #'(... ...)) <use ::: here>) -- Jens Axel Søgaard