Re: [Caml-list] how to define a property list

[Christoph Bauer <c_bauer@informatik.uni-kl.de>]

Hi,

> Could well be missing the point entirely here, but what about:
>
> type 'a tree = Leaf of 'a | Node of 'a tree * 'a * 'a tree
>
> and then use something simple like an assoc-list for storing the
> properties, so your final type would be:
>
> (string * string) list tree
            ^^^^^^ this could be a int or a string in the same tree!

> eg:
>
> let t = Node (Leaf [], [ "prop1", "value1" ], Leaf []);;
> val t : (string * string) list tree = (* ... *)
>
> This seems to separate out the 'treeness' from what is stored at each
> node, so you can use generic algorithms to operate over the tree.

Of course I could convert my integer to strings (and back),
but this solutions isn't so satisfying

Regards,
Christoph Bauer

-- 
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