[clean-list] Re: Converting Haskell to Clean

[Clean Support]

Sally wrote (in comp.lang.functional and on the Clean
Discussion list):

> Haskell code to translate to Clean:
> [..]
> data HtmlElement
>       = HtmlString String
>       | HtmlTag {               -- tag with internal markup
>               markupTag      :: String,
>               markupAttrs    :: [HtmlAttr],
>               markupContent  :: Html
>               }
> [..]
> My interpretation of this coding in Clean:
>
> :: HtmlElement =  HtmlString
>                 | HtmlTag
>
> :: HtmlTag = {
>               markupTag     :: String,
>               markupAttrs   :: [HtmlAttr],
>               markupContent :: Html
>              }
>
> Is this correct ? Can anyone adapt this code ?

That should be

    :: HtmlElement = HtmlString String
                   | HtmlTag HtmlTag

The first HtmlTag is the name of a constructor, the second the
name of the record type. If you find this confusing, you can
also write

    :: HtmlElement = HtmlString
                   | HtmlTag HtmlTagRecord

    :: HtmlTagRecord = ...

In Clean the record type has to be named, which is why you need
an extra definition.


Cheers,

Ronny Wichers Schreur