Thanks, John. Too late to do much now, but it looks like what I was needing,
and more. May have more questions after I examine it more closely tomorrow.
Michael
--- On Fri, 1/14/11, John Millikin wrote:
From: John Millikin
Subject: Re: [Haskell-cafe] Monad transformer: apply StateT to List m
Lifting 'f' into StateT -- you get a list of (result, state) pairs. Since
the state is never modified, the second half of each pair is identical:
--
import Control.Monad.State
f :: Int -> [Int]
f n = [0..n]
-- lifting 'f' in
I'm learning both haskell and web programming as I go here, this question
entails both.
I'm writing a screen scraping program, and I'm at the point where I need to
send certain data in the header. My question is, is that what method_HEADER
is for?
If so, could I see an example?
If not, how does one
Hi Daniel,
What I need to see is a function, say g, that lifts the function f (in the List
monad) into the StateT monad, applies it to the monad's value, say 1, and
returns a result [0,1].
Or, alternatively, code that lifts a function in the State monad, say tick
import Control.Monad.State
ty
Hi,
thanks for all Your answers (and again I'm amazed how active and good this
forum is).
I expected OOHaskell to be on the somewhat "extended" side, but I didn't
expect it to be so uncommon.
This very strong and clear feedback is indeed very valuable.
I think I see the complexities of OO-pr
Hi all,
I tried sending mail to the haskell-llvm mailing list ( AT
projects.haskell.org) several days ago and today I received a bounce
message.
Looking into the issue a little further, I find that DNS has no MX
record for projects.haskell.org and projects.haskell.org doesn't
seem to be liste
On 11-01-13 02:07 PM, Permjacov Evgeniy wrote:
BTW, how much utf16 text is around? I never found any in wild web.
There is a lot of utf16 text in memory chips when you use Windows or
Java. In the case of Windows there is also a lot on disk platters as
file names. A scanning electron microsco
On Thursday 13 January 2011 21:17:41, michael rice wrote:
> {- From: http://en.wikibooks.org/wiki/Haskell/Monad_transformers
> if for instance we apply StateT to the List monad, a function that
> returns a list (i.e., a computation in the List monad) can be lifted
> into StateT s [], where it becom
Hello,
I'm using the combination happstack + digestive-functors + web-routes +
blazeHTML.
I'm not finding any examples on the net...
I've tried to adapt your example (thanks):
type NomicForm a = HappstackForm IO String BlazeFormHtml a
demoForm :: NomicForm (Text, Text)
demoForm =
(,) <$> ((
{- From: http://en.wikibooks.org/wiki/Haskell/Monad_transformers
if for instance we apply StateT to the List monad, a function that returns a
list (i.e., a computation in the List monad) can be lifted into StateT s [],
where it becomes a function that returns a StateT (s -> [(a,s)]). That is, the
Hello,
I've recently released version 1.0 of extcore, a library for
processing code in GHC's text-based External Core format. extcore
includes a parser, prettyprinter, typechecker, and interpreter for
External Core, as well as modules for computing module dependencies
and combining multiple Core m
Hi Sean
Synthesized attributes are a bit more general than a Writer as there
is no restriction to monoidal values.
I might have re-worked UUAG code to monadic code before, but if I did
it would have been simple stuff and I think I'd have just used State,
or maybe State + Reader.
Best wishes
Ste
On 12/23/2010 06:01 AM, Evan Laforge wrote:
> This is not very encouraging! Especially strange is how Text
> generates *more* allocation... I'd expect less since it doesn't unpack
> all the Texts.
Errgh. To check against predicate, library HAS to unpack checked
character. There is no way around
I have been attempting to translate something I did using UUAG into monadic
code. It involved inherited, synthesized, and chained attributes. It has
been said that such attributes correspond to the Reader, Writer, and State
monads, respectively [1]. The former and latter are straightforward, but I'
John Meacham wrote:
On Thu, Jan 13, 2011 at 3:07 AM, Stefan Kersten wrote:
On 28.12.10 21:25, John Meacham wrote:
jhc generated C works on the android/ARM just fine. Android specific
libraries arn't available, so you would have to bind to what you want
with the FFI.
is there a recommended pro
Ok, here is an updated doc patch. I've also added
a substantial introduction section.
diff -rN -u old-base/Control/Concurrent/MVar.hs
new-base/Control/Concurrent/MVar.hs
--- old-base/Control/Concurrent/MVar.hs 2011-01-13 16:26:59.0 +
+++ new-base/Control/Concurrent/MVar.hs 2011-01-13
gutti gmx.net> writes:
>
>
> Hi,
>
> I wanted to check whether Haskell offers reasonably easy object oriented
> programming -- I already had a look into "Haskell's overlooked object
> system" und "A Gentle Introduction to Haskell 98" [H98]
>
I think you're better off starting by describing
On Thu, Jan 13, 2011 at 3:07 AM, Stefan Kersten wrote:
> On 28.12.10 21:25, John Meacham wrote:
>> jhc generated C works on the android/ARM just fine. Android specific
>> libraries arn't available, so you would have to bind to what you want
>> with the FFI.
>
> is there a recommended procedure for
On 28.12.10 21:25, John Meacham wrote:
> jhc generated C works on the android/ARM just fine. Android specific
> libraries arn't available, so you would have to bind to what you want
> with the FFI.
is there a recommended procedure for porting code from GHC to JHC? i'd like to
port an application o
On Wed, 2011-01-12 at 18:15 -0800, Evan Laforge wrote:
> On Mon, Dec 27, 2010 at 6:51 AM, Evan Laforge
> wrote:
> >> I've uploaded attoparsec-text and attoparsec-text-enumerator to
> >> Hackage. I've written those packages late last week and asked for
> >
> > Very nice! I'll download this and tr
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