patc@... (Patrick Caldon) wrote:
> I don't know how you update your web pages and so on, but I'd like to
> make a feature request (wish!) for support of all the standard haskell
> libraries. The couple of times I've tried using Hat this has been an
> issue. ST related libraries are the ones I really want.
Well, Hat does indeed support all the officially "standard" Haskell
libraries, namely those defined by the Haskell'98 Report. It
additionally supports many of the non-standard libraries contained in
the hierarchical "base" package, but as you discovered, not all of them.
There are good reasons why some (e.g. ST) are not supported - because
they are not portable between compilers.
However, there are plenty of newer non-standard libraries (e.g.
Data.Queue) which are entirely portable, and we have no good excuse for
failing to support them in Hat, except a lack of developer time to chase
them up.
In fact the real failure here is the lack of an easy mechanism for
anyone to add a newer library into Hat's default set. Automation would
make this so much less of a problem. But sadly, I do not forsee this
happening in the near future.
> Could you change the error message to read?
>
> Data.Queue: Does not exist;
> check http://<something> for a list of supported libraries.
A great idea.
Regards,
Malcolm
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