How to unambiguously match:
# spaces? key spaces? = spaces? value? spaces? comment?
where "key" is the node key, "value" the node value, and "comment" and
child node?
These are all accurate but create ambiguities in the put direction:
= (spaces | ((spaces? . value)? . (spaces? . comment)?))
= spaces? . (value | comment | (value . spaces? . comment?))?
= (spaces? | (spaces? . value) | (spaces? . comment) | (spaces? . value
. spaces? . comment))
... whether or not the union branches occur on the lens or node level.
Sincerely,
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