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masak / bel

An interpreter for Bel, Paul Graham's Lisp language
GNU General Public License v3.0
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Implement labels for shared pairs in the reader #407

Closed masak closed 2 years ago

masak commented 2 years ago

After #225...

> #1=(nil . #1)
Error: ('unboundb #1=(nil)

This should work, and roundtrip to #1=(nil . #1).