Tue, 30 May 2000 18:52:53 +0200, Lennart Augustsson <[EMAIL PROTECTED]> pisze:
> I feel quite strongly about this, and when I write Haskell programs
> I try to avoid non-standard features as much as I can. Very often
> you can; it might be a little inconvenient, but I think it's worth
> the price.
I write only few programs, but it's hard to avoid all non-standard
features. And when I use some and the program gets compilable only
with GHC, I don't have a strong motivation to avoid others. It would
probably change if more features were standarized and implemented,
if programs could be made more portable. I do have GHC, HBC, Hugs
and NHC installed, but use mostly GHC.
Recently I was writing a web browser for assignment. I used:
* Multiparameter type classes, to simulate overloaded record fields,
* FFI stuff, for curses,
* IOArray, to make a Perl-like extensible indexed array,
* IORef, to use uniform Output->IO() interface where output is sent
to a thread in one place and collected into a list in another,
* generalized pattern guards, not essential,
and non-standard libraries:
* MonadReader, MonadState, MonadRWS, in 6 places,
* FiniteMap, for String->String and String->Char maps,
* Set, to emit things at most once,
* URI, for parsing URIs amd making relative URIs,
* Socket, for a HTTP client,
* Concurrent, essential,
* Exception, to quietly kill a thread and catch all errors in a thread,
* Posix (will be soon), to get a ls-like directory listing.
I wish Haskell will evolve and interesting features and libraries
will be considered kosher. They are useful.
--
__("< Marcin Kowalczyk * [EMAIL PROTECTED] http://qrczak.ids.net.pl/
\__/ GCS/M d- s+:-- a23 C+++$ UL++>++++$ P+++ L++>++++$ E-
^^ W++ N+++ o? K? w(---) O? M- V? PS-- PE++ Y? PGP+ t
QRCZAK 5? X- R tv-- b+>++ DI D- G+ e>++++ h! r--%>++ y-
