surfaceWind is a parser engineered to operate on [Char]
however constantWind is a parser engineered to operate on Char... but it
then gets applied via drill to create a parser which operates on [Char]
Why would one be indirect and create a parser to operate on Char and then
apply 'drill' to get what you intended to use:
surfaceWind :: Parser [Char] SurfaceWind t
surfaceWind = "Surface Wind" :> p
where p = (word constantWind) <&> \surfaceWind -> <!?> (word
directionVariation)
(\dir2->{surfaceWind &
direction=dir2}) // if found
surfaceWind
// if nothing found
constantWind :: Parser Char SurfaceWind a
constantWind = direction <&> \dir ->
speed <&> \(u,spd) ->
gust u <@ \g ->
{direction=dir,speed=spd,gust=g}
--
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