RE: [sv-bc] E-mail Ballot: Respond by 8AM PST, Mon, Dec 10, 2007

I posted version V7 on Mantis. I changed the last few paragraphs as
follows:

When a macro usage is passed as an actual argument or a default to
another macro, the argument expansion does not introduce new uses of the
formal arguments to the top-level macro.

Example:

  `define TOP(a,b) a + b
  `TOP( `TOP(b,1), `TOP(42,a) )

expands to: b + 1 + 42 + a
not into: 42 + a + 1 + 42 + a
nor into: b + 1 + 42 + b + 1

It shall be an error for a macro to expand directly or indirectly to
text containing another usage of itself (a recursive macro). However, an
actual argument to a macro or a default may contain a usage of itself,
as in the previous example.

Thanks,
Shalom 

> Please add 1571. I will update the proposal shortly.
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