Lazy pairs for Guile

  Hello,


  maybe of some interest:

Lazy pairs for Guile
http://uucode.com/texts/lazypair/index.html

  In my applications, I'd like to represent tree-like structures as
the real Scheme lists to Guile. There are two issues here:

* structures are big enough. Making a full copy of data is overhead,
  so I'd like to instantiate tree branches on demand.

* Scheme list functions such as car, cdr, for-each etc should work
  on exposed data.

  These issues are solved by patching Guile source code. Not the best
way, but it works for me. Comments are appreciated.


  Regards, Oleg


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