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Immediately
+ - Repeat, Sequence, Tree
+ - simplify Forest (considerably)
+
- decent/better error messages
- fix the location stuff, it's broken
- copyright notices
-
- documentation
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- inference of rejections for literals
- "prefer whitespace higher up" (?)
+ - Labeled edges on trees (associate a label with each slot in the
+ child array in Forest.Body? might make equality tough) --
+ equivalent to Feature Structures. Colon-labeling.
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Later