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Improve Data.List.Base (fix #2359; deprecate use of with #2123) #2366

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Merged
merged 3 commits into from
Jun 5, 2024
Merged

Improve Data.List.Base (fix #2359; deprecate use of with #2123) #2366

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1d27660
refactor towards `if_then_else_`
jamesmckinna Apr 15, 2024
6082bb6
layout
jamesmckinna Apr 22, 2024
5b6dc88
`let` into `where`
jamesmckinna May 8, 2024
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13 changes: 7 additions & 6 deletions src/Data/List/Base.agda
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Original file line number Diff line number Diff line change
Expand Up @@ -428,9 +428,10 @@ linesBy {A = A} P? = go nothing where

go : Maybe (List A) → List A → List (List A)
go acc [] = maybe′ ([_] ∘′ reverse) [] acc
go acc (c ∷ cs) with does (P? c)
... | true = reverse (Maybe.fromMaybe [] acc) ∷ go nothing cs
... | false = go (just (c ∷ Maybe.fromMaybe [] acc)) cs
go acc (c ∷ cs) = if does (P? c)
then reverse acc′ ∷ go nothing cs
else go (just (c ∷ acc′)) cs
where acc′ = Maybe.fromMaybe [] acc

linesByᵇ : (A → Bool) → List A → List (List A)
linesByᵇ p = linesBy (T? ∘ p)
Expand All @@ -448,9 +449,9 @@ wordsBy {A = A} P? = go [] where

go : List A → List A → List (List A)
go acc [] = cons acc []
go acc (c ∷ cs) with does (P? c)
... | true = cons acc (go [] cs)
... | false = go (c ∷ acc) cs
go acc (c ∷ cs) = if does (P? c)
then cons acc (go [] cs)
else go (c ∷ acc) cs

wordsByᵇ : (A → Bool) → List A → List (List A)
wordsByᵇ p = wordsBy (T? ∘ p)
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