Feature request/wish list - library support

Hi,

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.

Also the first time I tried using Hat (this was about a week
after I
started using Haskell) I got desparately confused by its
lack of
library support.  If I recall, I had a little bit of toy
code which
used Data.Queue, and tried re-installing Hat several times
with
different options, each time getting an erro message like
"Data.Queue:
Does not exist".  Could you change the error message
to read?

Data.Queue: Does not exist; check http://<something>
for a list of
supported libraries.

Thanks all the same for all your work!

Regards,
Patrick.
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patccse.unsw.edu.au (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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