What are all the cases of ellipsis in Scheme pattern matching Hygienic Macros System

问题

This is continuation of my previous question Missing argument in syntax-rules Hygienic macro call from Scheme R5RS example

so you can have only this two cases:

1. First

     (foo bar baz) ...

that can be used as

foo ... ==> (foo_1 _ foo_2 _ foo_3 _)

bar ... ==> (_ bar_1 _ bar_2 _ bar_3 _)

or

(foo bar bar) ...

but what should expand this expression into?

(foo baz) ...

2. Second

    (foo bar baz ...)

which can be used as baz ... that expands into ,@(1 2 3) if input is (anything 0 1 2 3).

Are there any other cases? Is this documented somewhere? Or do you need to extract this information from R5RS that don't show any examples of all those cases?

来源：https://stackoverflow.com/questions/61202006/what-are-all-the-cases-of-ellipsis-in-scheme-pattern-matching-hygienic-macros-sy