Alex Shinn scripsit:

> There are some very uncommon semantics such as those supported by SCM,
> where syntax can retroactively modify preceding definitions, which are
> technically allowed in R5RS.  We need very strong motivation to break
> backwards compatibility with R5RS (though this may be such a case).

Except for SCM, all the REPL semantics are in fact the same: references
to variables aren't inlined, syntax forms are inlined (so they must be
defined before use and redefinition is not retroactive).

We have a ticket for REPL semantics already.

--
John Cowan                                   cowan@ccil.org
        "You need a change: try Canada"  "You need a change: try China"
                --fortune cookies opened by a couple that I know

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