If you're actually parsing a string, you may also want to look into one of
the various parsing libraries like `elm-tools/parser`. If you're willing to
give a few more details about the format of those strings, I'm sure people
here (and on slack) would be more than willing to give you a hand in
figuring things out.
Another alternative, in the same vein as Peter's proposals but including
more crimes against humanity (and loosely resembling Haskell's guard
syntax) is this one: https://ellie-app.com/46bdfm75sqja1/0
Op dinsdag 22 augustus 2017 14:46:11 UTC+2 schreef David Legard:
>
> Does Elm have anything between an *if-then-else* flow control and* case* ?
>
> My use case is, I need to parse a string in various ways to decide which
> Analysis ADT to assign to the string.
>
> Thus
>
> sconvert : String -> Analysis
> sconvert s =
> if s=="all" then AllDays
> else if s=="unplayed" then Unplayed
> else if String.startsWith "onday" s then OnDay (secondBit s)
> else if String.contains "totz:" s then Totz (secondBit s)
> else Unknown
>
>
> There are about 30 different branches in my app, and it's convenient to
> keep them together.
>
> I can't use a case expression here, so I guess what I'm looking for is
> something like F#'s match expression, where you can add conditions using
> the when modifier. (code written as if the function existed in Elm
>
> fizzBuzz : Int -> String
> fizzBuzz x =
> match x with
> | i when i % 15 = 0 -> "fizzbuzz"
> | i when i % 3 = 0 -> "fizz"
> | i when i % 5 = 0 -> "buzz"
> | i -> toString(i)
>
> What would be an elegant way to implement the fizzBuzz function in Elm?
>
>
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