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I'm a bit concerned about the syntax of LET-VALUES:
(LET-VALUES (<formals> <expression>) <body>)
<Formals> should be a formal arguments list as for a LAMBDA
expression, cf section 4.1.4 of the R5RS.
(let-values (a <expression a single value> )
will bind A to a list containing the single value. I believe this
will likely be a common mistake producing an unexpected result.
MzScheme's LET-VALUES requires <formals> to be parenthesized.
I personally think that, since (VALUES X) is equivalent to X, a single
name A should be equivalent to (A) in that position.
I would also like to see LET-VALUES allow more bindings to be
consistent with LET. (Unfortunately, this pretty much requires there
being LET*-VALUES and LETREC-VALUES as well, again as in MzScheme.)
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla