Scheme (was: Walking the DOM)

John Cowan cowan at
Mon Nov 9 18:47:15 GMT 1998

Russ McManus wrote:

> My understanding is that R5RS includes 'do' in the language, which
> is a primitive, iterative construct.

"do" is iterative but not primitive: it is defined in R5RS
using a high-level macro (now the only kind of macro), using
tail iteration.

The *primitive* constructs are application, "if", "set!",
"lambda", and variable reference.

John Cowan		cowan at
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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