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latest mzscheme (that would be 372 now) as the default hosting environment

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Using [+ _ _ _] with the same meaning as [+ _1 _2 _3] would be confusing I'd say. [+ _ _ _] should mean the same as [+ _1 _1 _1] if it is allowed at all.

(= x2 [+ _ _])

Explicit numbering will make sure the arguments stay in the correct order so my earlier remark of allowing any underscore-beginning string is probably wrong.

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4 points by hkBst 4649 days ago | link | parent | on: picoLisp - arc before arc

Wasn't arc to have first-class macros too? Does it?

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