Marc Feeley wrote:
> Some Scheme
> systems still use the #!foo syntax for some objects (Gambit and Chez
> Scheme use #!eof to denote the end-of-file object).

So does Kawa, which also has:
#!void - same as (values):  The result of "void expressions".
#!null - Java null.
#!default and #!undefined - used mainly internally.
--
	--Per Bothner
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