On 3/8/06, Shannon -jj Behrens <[EMAIL PROTECTED]> wrote:
> On 3/8/06, Jared Updike <[EMAIL PROTECTED]> wrote:
> > > I suspect you guys are right. I had always thought of states as
> > > being "isomorphic" to integers (i.e. you can be in state 0, state 1,
> > > ... state n), not as contexts (you h
On 3/8/06, Jared Updike <[EMAIL PROTECTED]> wrote:
> > I suspect you guys are right. I had always thought of states as
> > being "isomorphic" to integers (i.e. you can be in state 0, state 1,
> > ... state n), not as contexts (you have this input, that output, and
> > this token stack), am I wrong
Last attempt, as its due in a couple of hours
Here's what i have so far..
> charToGrid :: Char -> Position -> Grid -> Grid
> charToGrid c [] (row,col) xs = xs
> charToGrid c (row,col) xs = (changeValue c (concat xs (row*9 + col)))
Using changeValue -
changeValue x 0 (y:ys) = (x:ys)
changeVal
On 08/03/06, ihope <[EMAIL PROTECTED]> wrote:
> I'd like to propose more syntactic sugar more Haskell. (A spoonful of
> syntactic sugar makes the medicine go down...)
>
> Put simply, this would provide a smallish bit of pattern matching, and
> hopefully clarify some things. A simple example should
> 5) Ideally the scripting language would be Haskell..
> ... I can't find anything which would allow you
> to compile and load functions into a running program.
>From haskell.org:
"hs-plugins"
A library for compiling and loading plugins into a running Haskell
program.
Have a look at
shae:
> Nils Anders Danielsson <[EMAIL PROTECTED]> writes:
>
> > I had the same thought yesterday, after an Emacs-Lisp session in which
> > I was trying to get Gnus to do exactly what I wanted it to...
>
> Yeah, same here. I use Gnus and it's nice, but occasionally I want to erase it
> from the t
I'd like to propose more syntactic sugar more Haskell. (A spoonful of
syntactic sugar makes the medicine go down...)
Put simply, this would provide a smallish bit of pattern matching, and
hopefully clarify some things. A simple example should pretty much
define the whole thing:
fromJust = {Just -
> I suspect you guys are right. I had always thought of states as
> being "isomorphic" to integers (i.e. you can be in state 0, state 1,
> ... state n), not as contexts (you have this input, that output, and
> this token stack), am I wrong?
You're thinking of a state machine, I think, which is no
On Wed, Mar 08, 2006 at 10:37:11AM +, Ross Paterson wrote:
> Just for fun, I've put up some statistics on haskell-prime traffic at
>
> http://www.soi.city.ac.uk/~ross/haskell-prime-stats/
>
> I'm not claiming it shows anything, except what a narrow base we have.
I had no idea I was so
On 2006-03-08, Bulat Ziganshin <[EMAIL PROTECTED]> wrote:
[a lot of HTML crap that was difficult to read]
If you actually want people to read and understand your mail, you might
want to make it easy for them to do so.
--
Aaron Denney
-><-
___
Haskell-
Thanks for all the help i've recived through e-mails, but im still stuck on
this
Anyone want to save the day? :(
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>> 29% Parsec
>> 19% wxHaskell
>> 16% QuickCheck
>> 16% haddock
>> 12% Monadic Parser Combinators
>> 11% Gtk2Hs
>> 9% hs-plugins
>> 8% HaXml
>> 7% Data.*
>> 7% Monad foundation classes
>> 6% Arrows
>> 6% HOpenGL
>>
>> The list includes all libraries named by more than 5% of respondents.
>> Sure en
On Wed, 8 Mar 2006 [EMAIL PROTECTED] wrote:
Today, I reviewed a function I wrote a few months ago. The function,
dropTrailNulls, takes a list of lists and drops trailing null lists. For
instance:
*Main> dropTrailNulls [[1],[2,3],[],[]]
[[1],[2,3]]
http://www.haskell.org/pipermail/libraries
First of all, thank you all so much for taking the time to help me
with this exercise! My hope is that once I'm able to understand it,
my understanding can come through in the article I write.
> Brian Hulley:
> In the pipe in the 'otherwise' branch, at the moment you have to
> assume that each of
I see, that seems to make sence.
Im still unsure of how to do that with the specification set to me
> charToGrid :: Char -> Position -> Grid -> Grid
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On Mar 8, 2006, at 2:27 PM, zell_ffhut wrote:
Could you explain what the function does.. I can't seem to peice it
together.
It takes three things 1) a function 2) an index and 3) a list. It
finds the nth element of the list, applies the function to it and
then returns a new list containi
Hello Jeff,
Wednesday, March 8, 2006, 8:08:57 PM, you wrote:
>
dropTrailNulls list = reverse (dropWhile null (reverse list))
dropTrailNulls [] = []
dropTrailNulls ([]:xs) = case dropTrailNulls xs of
[] -> []
list -> []:list
drop
Nils Anders Danielsson wrote:
On Tue, 07 Mar 2006, "Brian Hulley" <[EMAIL PROTECTED]> wrote:
(Moved from ghc-users.)
Brian Hulley wrote:
(time for a proper email client to be written in Haskell! ;-) )
I had the same thought yesterday, after an Emacs-Lisp session in which
I was trying to g
Could you explain what the function does.. I can't seem to peice it together.
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zell_ffhut wrote:
> Imagine the strings are set out in a 9x9 grid type way, and i have to find
> the value of a set position given 2 gird values.
>
> > getCharFromGrid (row,col) g = concat g !!(row * 9) + col
This isn't by chance evolving into the world's ugliest sudoku solver?
Are you sure, you
[EMAIL PROTECTED] wrote:
>
> Today, I reviewed a function I wrote a few months ago. The function,
> dropTrailNulls, takes a list of lists and drops trailing null lists. For
> instance:
>
> *Main> dropTrailNulls [[1],[2,3],[],[]]
> [[1],[2,3]]
dropTrailNulls = foldr dtn []
where
dtn [] []
On Mar 8, 2006, at 1:29 PM, zell_ffhut wrote:
Im afraid im baffled again!
Im now trying to add a char to a string of strings (eg - ["434233434"
"444929192" "909313434"]
Im sure i can use my previous function to help me achive this, but
i can't
seem to get it workinging
charToGrid :: Char
Im afraid im baffled again!
Im now trying to add a char to a string of strings (eg - ["434233434"
"444929192" "909313434"]
Im sure i can use my previous function to help me achive this, but i can't
seem to get it workinging
> charToGrid :: Char -> Position -> Grid -> Grid
> charToGrid c (row,co
On Mar 8, 2006, at 12:08 PM, [EMAIL PROTECTED] wrote:Today, I reviewed a function I wrote a few months ago. The function, dropTrailNulls, takes a list of lists and drops trailing null lists. For instance: *Main> dropTrailNulls [[1],[2,3],[],[]] [[1],[2,3]] My original implementation was terribl
> dropTrailNulls list = reverse (dropWhile null (reverse list))
Or more succinctly:
dropTrailNulls = reverse . dropWhile null . reverse
> Or, is there a more efficient idiom for addressing these problems?
The "bad thing" about this definition is that it is tail strict. Consider
["hello","every
Today, I reviewed a function I wrote
a few months ago. The function, dropTrailNulls, takes a list of lists
and drops trailing null lists. For instance:
*Main> dropTrailNulls [[1],[2,3],[],[]]
[[1],[2,3]]
My original implementation was terrible.
It was recursive, overly bulky, and difficult to
Björn Bringert wrote:
> Graham Klyne wrote:
>> [Switching to haskell-cafe]
>> Niklas Broberg wrote:
>
>> ...
>
>>> On 3/6/06, Graham Klyne <[EMAIL PROTECTED]> wrote:
- Options to run the whole thing behind Apache to leverage its
security and web
space management capabilities
>>>
>>
Xavier Elizalde wrote:
Hi. I sent this post to the haskell-cafe mailing list but haven't
gotten any replies.
Ah well, I watch that list in digest mode only, easy to overlook things.
Basically, I can't get the Uninstall AppleScript for GHC 6.4.1to
run properly because it encounters an error
Stunning. That really helps
Different thinking to what im used to :)
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> > changeValue x i [xs] = [xs] !! i = x
>
> where x is the value to change to, i is the index of the value to change,
> and [xs] is the list.
>
> This however, dosen't work in Haskell. How would this be done in Haskell?
Think about what parts of the list you can reuse, how you can define
those
On 8 Mar 2006, at 14:21, zell_ffhut wrote:
Thank you, It's working as planed now
Trying to do a function now that changes the value of an element of
the
list. In programming languages i've used in the past, this would be
done
somthing like -
changeValue x i [xs] = [xs] !! i = x
where
Am Mittwoch, 8. März 2006 15:11 schrieb Neil Mitchell:
> I never claimed it was a good reason, merely that it was a reason :) [...]
:-)
> Anyway, my current plan is:
> * lots of smallish packages, and one big "base" package which is the
> default search
> * OpenGL, wxHaskell, Gtk2Hs, Darcs, GHC A
Thank you, It's working as planed now
Trying to do a function now that changes the value of an element of the
list. In programming languages i've used in the past, this would be done
somthing like -
> changeValue x i [xs] = [xs] !! i = x
where x is the value to change to, i is the index of th
On Wed, 2006-03-08 at 11:25 +0100, John Hughes wrote:
> When I surveyed Haskell users, I asked respondents to name the most
> important tools and libraries they use. (Caveat: respondents saw the
> list of tools and libraries already named, and could include these just
> by selecting them, so to
> I'm not sure I agree that is a good reason.
I never claimed it was a good reason, merely that it was a reason :)
Hoogle 2 only allowed you to search the Haskell 98 libraries, which
obviously everyone wants to do. Hoogle 3 is still in beta - I
introduced searching more, but have not got round to
"Neil Mitchell" <[EMAIL PROTECTED]> writes:
>> And a related question is: Which packages are searchable by Hoogle?
> The best answer to that is "some". I intentionally excluded OpenGL and
> other graphics ones because they have a large interface and yet are
> not used by most people using Haskell
Hello Jens,
Wednesday, March 8, 2006, 2:31:36 PM, you wrote:
>> How would I get the value of, lets say, the 9th object in ["4179355","
>> 567412"] ?
JF> Just concatenate the list elements and index the resulting list, but
btw, due to the lazy evaluation time required to perform this
operation wi
On 08.03 13:32, Tomasz Zielonka wrote:
> > This seems suprisingly hard to implement - a normal binary tree with
> > links as TVar is very slow and does not scale very well.
>
> By "normal" you mean unbalanced? Do you think it's slow because it's not
> balanced, or because of STM?
Unbalanced in th
On 3/8/06, zell_ffhut <[EMAIL PROTECTED]> wrote:
>
> I've tried using the Concat and ++ functions, but to no avail so far.
>
> Imagine the strings are set out in a 9x9 grid type way, and i have to find
> the value of a set position given 2 gird values.
>
> > getCharFromGrid (row,col) g = concat g !
I've tried using the Concat and ++ functions, but to no avail so far.
Imagine the strings are set out in a 9x9 grid type way, and i have to find
the value of a set position given 2 gird values.
> getCharFromGrid (row,col) g = concat g !!(row * 9) + col
The decleration is
> getCharFromGrid :: P
Nils Anders Danielsson <[EMAIL PROTECTED]> writes:
> I had the same thought yesterday, after an Emacs-Lisp session in which
> I was trying to get Gnus to do exactly what I wanted it to...
Yeah, same here. I use Gnus and it's nice, but occasionally I want to erase it
from the timestream.
> Out of
On Wed, Mar 08, 2006 at 01:50:06PM +0200, Einar Karttunen wrote:
> Does anyone have an efficient tree implemented in STM that
> supports concurrent updates in an efficient fashion?
Interesting idea!
> This seems suprisingly hard to implement - a normal binary tree with
> links as TVar is very slo
Bulat Ziganshin wrote:
> Hello Chris,
>
> Wednesday, March 8, 2006, 1:26:37 AM, you wrote:
>
> CK> It takes the string form of the regular expression and uses Parsec to
> create a
>
> he-he, i written the same thing (but very simple) 2 years ago :) i
> planned to submit it to the Parsec develo
Am Mittwoch, 8. März 2006 11:25 schrieb John Hughes:
> When I surveyed Haskell users, I asked respondents to name the most
> important tools and libraries they use. (Caveat: respondents saw the
> list of tools and libraries already named, and could include these just
> by selecting them, so tools m
Am Dienstag, 7. März 2006 14:24 schrieb Neil Mitchell:
> I would also imagine that Joe Programmer is more likely to use
> wxHaskell or Gtk2Hs than those [...]
Just a (hopefully final) remark about this, because the above statement seems
to imply something that is not completely true: 3 of the 4 p
zell_ffhut <[EMAIL PROTECTED]> writes:
> Just wondering if anyone can help me with a Haskell problem im having.
> How would I get the value of, lets say, the 9th object in ["4179355","
> 567412"] ?
You mean the ninth character in the concatenation of the list of
strings? Concatenate the strings
Hello
Does anyone have an efficient tree implemented in STM that
supports concurrent updates in an efficient fashion? This
seems suprisingly hard to implement - a normal binary
tree with links as TVar is very slow and does not scale
very well.
- Einar Karttunen
___
> How would I get the value of, lets say, the 9th object in ["4179355","
> 567412"] ?
>
> (in this case, that should return 6)
>
> Any help/adivce would be great :)
Just concatenate the list elements and index the resulting list, but
note that list indices start from 0. Nevertheless I would say
Am Mittwoch, 8. März 2006 10:51 schrieb zell_ffhut:
> Just wondering if anyone can help me with a Haskell problem im having.
>
> How would I get the value of, lets say, the 9th object in ["4179355","
> 567412"] ?
>
> (in this case, that should return 6)
>
> Any help/adivce would be great :)
> --
>
Am Mittwoch, 8. März 2006 12:06 schrieben Sie:
> Daniel Fischer wrote:
> > Hi all,
> > I've just installed haddock-0.7, nice, but...
> >
> >> haddock -o h7doc -h -D h7doc/fusi.haddock --use-package=base
> >> Verwaltung.hs
> >
> > Teams.hs Stats.hs Match.hs Main.hs Liga.hs Item.hs Helpers.hs Datum.h
Just wondering if anyone can help me with a Haskell problem im having.
How would I get the value of, lets say, the 9th object in ["4179355","
567412"] ?
(in this case, that should return 6)
Any help/adivce would be great :)
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Daniel Fischer wrote:
Hi all,
I've just installed haddock-0.7, nice, but...
haddock -o h7doc -h -D h7doc/fusi.haddock --use-package=base Verwaltung.hs
Teams.hs Stats.hs Match.hs Main.hs Liga.hs Item.hs Helpers.hs Datum.hs
Warning: Helpers: could not find link destinations for:
GHC.Base.Int
Am Dienstag, 7. März 2006 20:52 schrieb Shannon -jj Behrens:
> I did think of using a monad, but being relatively new to Haskell, I
> was confused about a few things. Let's start by looking at one of my
> simpler functions:
>
> -- Keep pushing tokens until we hit an identifier.
> pushUntilIdentifi
On Tue, 07 Mar 2006, "Brian Hulley" <[EMAIL PROTECTED]> wrote:
(Moved from ghc-users.)
> Brian Hulley wrote:
> (time for a proper email client to be written in Haskell! ;-) )
I had the same thought yesterday, after an Emacs-Lisp session in which
I was trying to get Gnus to do exactly what I wan
Daniel Fischer wrote:
Hi all,
I've just installed haddock-0.7, nice, but...
haddock -o h7doc -h -D h7doc/fusi.haddock --use-package=base Verwaltung.hs
Teams.hs Stats.hs Match.hs Main.hs Liga.hs Item.hs Helpers.hs Datum.hs
Warning: Helpers: could not find link destinations for:
GHC.Base.Int
Just for fun, I've put up some statistics on haskell-prime traffic at
http://www.soi.city.ac.uk/~ross/haskell-prime-stats/
I'm not claiming it shows anything, except what a narrow base we have.
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Daniel Fischer wrote:
Hi all,
I've just installed haddock-0.7, nice, but...
haddock -o h7doc -h -D h7doc/fusi.haddock --use-package=base Verwaltung.hs
Teams.hs Stats.hs Match.hs Main.hs Liga.hs Item.hs Helpers.hs Datum.hs
Warning: Helpers: could not find link destinations for:
GHC.Base.Int
Am Samstag, 4. März 2006 21:30 schrieb Neil Mitchell:
And a related question is: Which packages are searchable by Hoogle?
The best answer to that is "some". I intentionally excluded OpenGL and
other graphics ones because they have a large interface and yet are
not used by most people
[Moving to café]
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Mattias Bengtsson
>
>
> > > I think that continuation-based web session state management, ala
> > > Smalltalk/Seaside, would be a very natural fit for a
> Haskell framework -- all
> > > handled by a "Web sessio
Hello Chris,
Wednesday, March 8, 2006, 1:26:37 AM, you wrote:
CK> It takes the string form of the regular expression and uses Parsec to
create a
he-he, i written the same thing (but very simple) 2 years ago :) i
planned to submit it to the Parsec developers as an example of
double-Parsec usage
Hello Shannon,
Tuesday, March 7, 2006, 10:52:01 PM, you wrote:
SjB> The function itself is a ParseContextTransformation. It takes a
SjB> context, transforms it, and returns it. Most of the pipelines in the
SjB> whole application are ParseContextTransformations, and the |> (or $ or
SjB> .) are w
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