[mercury-users] Typeclass constraint on HO (function) discriminator

[Nicholas Nethercote]

On Thu, 20 Apr 2006, Ralph Becket wrote:

>>> [Please don't use DCGs for IO; use state variables instead.]
>>
>> Why not?
>
> It's an abuse of the notation: DCGs are for parsing.

Says who?  It's his code and it works.  Looks like a style issue to me.

Nick
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