On 15 October 2005 19:08, Bulat Ziganshin wrote:
Hello Lennart,
Saturday, October 15, 2005, 5:03:50 PM, you wrote:
Alas, Haskell is more subtle than that. Which is why newtype exists.
Try
case A _|_ of A _ - 1
with the two versions of A to see the difference.
this have
Very interesting Conor. Do you know Xi et al's APLAS'03 paper?
(Hongwei, I'm not sure whether you're on this list).
Xi et al. use GRDTs (aka GADTs aka first-class phantom types)
to represent XML documents. There're may be some connections
between what you're doing and Xi et al's work.
I believe
Joel
A released GHC should never crash. Can you submit a bug report please
(see Report a bug on GHC's home page)? In doing so, please attach
the source code that provokes the crash.
Thanks
Simon
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[mailto:[EMAIL PROTECTED] On Behalf Of
Hello.
Are there any embedded domain specific languages that are meant to be
used interactively from a Hugs or GHCi prompt without requiring the
user to be acquainted with Haskell in general, only the DSL library?
For instance, a Haskell shell DSL that provided combinators for
creating and
Hi everybody,
for my first real 'learn some haskell'-project I decided upon a parser. The
resulting application would be somewhat useful to me and armed with such a cool
library as Parsec, how could I fail? I was going to be a haskell hacker in
notime. Oh, the wine, the women and the fame.
[snip]
Now comes the tricky part for me. Since the control can have three different
types of children I use a helper that parses the body of the control using other
parsers, collecting their results in three lists:
ctrlBodyParser :: CharParser ([Value], [Property], [Control])
Announcment:
I am proud to announce the *premature* release of my Decimal
arithmetic library:
darcs get http://www.n-heptane.com/nhlab/repos/Decimal
It implements real decimal arithmetic, for cases where the binary
floating point is not acceptable (money, etc).
Need Advice:
joelr1:
Folks,
I downloaded and installed the pre-built ghc 6.4.1 on Windows XP and
Win2k. I tried building FastPackedStrings but ghc crashes soon after
starting. Any tips?
I'm gonna try with a hand-built ghc but somehow doubt it will help.
Oh, now that's interesting. Do you have a
la:
Hello.
Are there any embedded domain specific languages that are meant to be
used interactively from a Hugs or GHCi prompt without requiring the
user to be acquainted with Haskell in general, only the DSL library?
For instance, a Haskell shell DSL that provided combinators for
The code seems a bit simpler, too.
Do you really think so? To me replacing a GADT by class and
instance declarations seems the wrong way round. We should
not forget that the DT in GADT stands for `data type'. One
could certainly argue that the gist of functional programming
is to define a
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