On Sat, May 12, 2001 at 10:58:11AM +0200, Francisco Valverde Albacete wrote:
> You don't need a recursive type for this:
> 
> type word = Word of string
> type word_list = word list
> type phrase = unit -> word list
> type phrase_list = phrase list

I tried this also, but I couldn't figure out how to type the list that contains
both (phrase_list * phrase_list) and (phrase_list * word_list) without grouping
them in a single common type.  The compiler still rejects the grammar list
because its elements are not homogenous.

-- 
miles
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