Support for Indexed Folds?
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feature request
question
- 主要语言
- Haskell
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描述
Sorry if this is already addressed.
I'm in need of an `ifoldl'` function over text values, and I can't seem to find it.
```haskell
ifoldl' :: forall a. (a -> Int -> Char -> a) -> a -> Text -> a
```
Lens combinators come close, but I don't think it's possible to make an instance of [FoldableWithIndex](https://hackage.haskell.org/package/lens-5.2/docs/Control-Lens-Combinators.html#t:FoldableWithIndex) for text?
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