Created
December 3, 2023 07:21
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Synchronous string normalization in Elm
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| <!DOCTYPE html> | |
| <html charset="utf-8"> | |
| <head> | |
| </head> | |
| <body> | |
| <div id="elm"></div> | |
| <script> | |
| // THIS HAS TO HAPPEN BEFORE THE IMPORT OF elm.js | |
| // OTHERWISE OBJECTS CREATED WITH Json.Encode.object WON'T HAVE THIS PROPERTY | |
| Object.defineProperty(Object.prototype, 'normalizedNFC', { | |
| get() { return this.stringToBeNormalized.normalize('NFC') } | |
| }) | |
| Object.defineProperty(Object.prototype, 'normalizedNFD', { | |
| get() { return this.stringToBeNormalized.normalize('NFD') } | |
| }) | |
| Object.defineProperty(Object.prototype, 'normalizedNFKC', { | |
| get() { return this.stringToBeNormalized.normalize('NFKC') } | |
| }) | |
| Object.defineProperty(Object.prototype, 'normalizedNFKD', { | |
| get() { return this.stringToBeNormalized.normalize('NFKD') } | |
| }) | |
| </script> | |
| <script src="elm.js"></script> | |
| <script> | |
| Elm.Main.init({node: document.getElementById('elm')}); | |
| </script> | |
| </body> | |
| </html> |
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| module Main exposing (main) | |
| import Html exposing (Html) | |
| import Json.Decode | |
| import Json.Encode | |
| main : Html msg | |
| main = | |
| Html.ul [] | |
| [ viewVariant "Non-normalized" identity | |
| , viewVariant "NFC" normalizeNFC | |
| , viewVariant "NFD" normalizeNFD | |
| , viewVariant "NFKC" normalizeNFKC | |
| , viewVariant "NFKD" normalizeNFKD | |
| ] | |
| normalizeNFC : String -> String | |
| normalizeNFC string = | |
| normalizeWith "NFC" string | |
| normalizeNFD : String -> String | |
| normalizeNFD string = | |
| normalizeWith "NFD" string | |
| normalizeNFKC : String -> String | |
| normalizeNFKC string = | |
| normalizeWith "NFKC" string | |
| normalizeNFKD : String -> String | |
| normalizeNFKD string = | |
| normalizeWith "NFKD" string | |
| inputString : String | |
| inputString = | |
| "ñ" | |
| viewVariant : String -> (String -> String) -> Html msg | |
| viewVariant label fn = | |
| let | |
| processed = | |
| fn inputString | |
| in | |
| Html.li [] | |
| [ Html.text label | |
| , Html.ul [] | |
| [ Html.li [] [ Html.text processed ] | |
| , Html.li [] | |
| [ processed | |
| |> String.length | |
| |> String.fromInt | |
| |> (\s -> "Length: " ++ s) | |
| |> Html.text | |
| ] | |
| ] | |
| ] | |
| normalizeWith : String -> String -> String | |
| normalizeWith normalizationType string = | |
| Json.Encode.object | |
| [ ( "stringToBeNormalized" | |
| , Json.Encode.string string | |
| ) | |
| ] | |
| |> Json.Decode.decodeValue | |
| (Json.Decode.field ("normalized" ++ normalizationType) Json.Decode.string) | |
| |> -- Perhaps not safe to do this? | |
| Result.withDefault string |
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Wait. Isn't this illegal? (😉)