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24 lines
515 B
Elm
24 lines
515 B
Elm
module WordCount exposing (..)
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import String
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import Dict exposing (Dict)
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import Regex
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wordCount : String -> Dict String Int
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wordCount sentence =
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sentence
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|> String.toLower
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|> depunctuate
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|> String.words
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|> List.foldl (\w d -> Dict.update w incrMaybe d) Dict.empty
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depunctuate : String -> String
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depunctuate =
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Regex.replace Regex.All (Regex.regex "[^a-z0-9 ]") (\_ -> "")
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incrMaybe : Maybe Int -> Maybe Int
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incrMaybe maybe =
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(Maybe.withDefault 0 maybe) + 1 |> Just
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