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Opaque syntax objects

This page is part of the web mail archives of SRFI 72 from before July 7th, 2015. The new archives for SRFI 72 contain all messages, not just those from before July 7th, 2015.

The issue has come up in the discussion, but hasn't really been in the
focus yet:

I'd like to suggest that compound expressions be represented by an
opaque type rather than by pairs.  This would ensure a modicum of
abstraction, and would *really* make comprehensive the ability of all
syntax objects to carry location information.  I've come to appreciate
this added layer of abstraction in PLT Scheme.

Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla