25 lines
549 B
Idris
25 lines
549 B
Idris
module Quox.OPE.Cover
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import Quox.OPE.Basics
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import Quox.OPE.Length
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import Quox.OPE.Sub
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%default total
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public export
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data Cover_ : (overlap : Bool) -> xs `Sub` zs -> ys `Sub` zs -> Type where
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CE : Cover_ ov End End
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CL : Cover_ ov p q -> Cover_ ov (Keep p) (Drop q)
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CR : Cover_ ov p q -> Cover_ ov (Drop p) (Keep q)
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C2 : Cover_ ov p q -> Cover_ True (Keep p) (Keep q)
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public export
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Cover : xs `Sub` zs -> ys `Sub` zs -> Type
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Cover = Cover_ True
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public export
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Partition : xs `Sub` zs -> ys `Sub` zs -> Type
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Partition = Cover_ False
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