.
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will use a compiled version instead
of interpreted).
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Micah Cowan [EMAIL PROTECTED] writes:
Max Vasin wrote:
Hello, haskellers!
Suppose we have function (it filters package filenames from apt Packages
file):
getPackageList :: FilePath - IO [FilePath]
getPackageList packageFile = withFile packageFile ReadMode
it to
return $! map (drop 10) $ filter (startsWith Filename:) $ lines c
makes getPackageList function return several (but not all) filenames.
What I'm missing? And how can I fix my code?
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2007/12/24, Simon Peyton-Jones [EMAIL PROTECTED]:
Would someone familiar with the command-line-parsing libraries care to help
Krassimir?
AFAIU Krassimir's needs, hs-plugins will help him (function eval).
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(a, b) - c.
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. In
Windows there is no such thing as window manager (it's functionality
is built-in into Windows itself).
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, would it be possible to integrate this into GTK2HS so it works as
a docking manager inside an application?
First of all, gtk is a cross platform toolkit and gtk2hs is just a
wrapper. It will be better to implement a docking manager in C to let
whole gtk community use it.
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) = ... - left as an exercise, but no need for head or tail.
And you can get less equations if you replace first two equations with
mapPairs f x = x and place it after Neil's.
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Setup.lhs configure
$ runhaskell Setup.lhs build
$ sudo runhaskell Setup.lhs install
Another way is to take ghc6 and all haskell libs from fiesty.
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Bahtijar == Bahtijar Vogel [EMAIL PROTECTED] writes:
Bahtijar Hi, How am I supposed to use infinite lists to define
Bahtijar the list of all negative integers?
negs = [-1,-2..]
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= False
import isJust
boolFromMaybe = isJust
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,
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, drift). What would you recommend
using in this case?
Or may be it would be better to drop out Empty and use something else?
TIA
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Pedro == Pedro Baltazar Vasconcelos [EMAIL PROTECTED] writes:
Pedro On Wed, 17 Jan 2007 15:58:04 +0300
Pedro Max Vasin [EMAIL PROTECTED] wrote:
Hello all!
Let
data Book = Book { authors :: [String], title :: String,
editor :: Maybe String, edition :: Maybe String, volume
:: Maybe
Colin == Colin DeVilbiss [EMAIL PROTECTED] writes:
Colin On 1/17/07, Max Vasin [EMAIL PROTECTED] wrote:
Fields of the Book datatype which are not (Maybe a) are
required to be present.
Colin This doesn't actually answer your question, but if those
Colin fields are really required and you want
Henning == Henning Thielemann [EMAIL PROTECTED] writes:
Henning On Wed, 17 Jan 2007, Max Vasin wrote:
Hello all!
Let
data Book = Book { authors :: [String], title :: String,
editor :: Maybe String, edition :: Maybe String, volume
:: Maybe (Int, Int), -- e.g. volume 1 of 3
Pedro == Pedro Baltazar Vasconcelos [EMAIL PROTECTED] writes:
Pedro On Wed, 17 Jan 2007 16:57:54 +0300
Pedro Max Vasin [EMAIL PROTECTED] wrote:
It does not enforce presence of required fields at type level. Also it
does not enforce that fields pages and year are Int. And I want
to move
other reasons why the executable file might be covered by
the GNU General Public License.
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. It is incompatible with
Benjamin proprietary software. There's a difference.
A small addition: some GPLed libraries (libstdc++ AFAIK) allow
linking with proprietary software by adding clause to lisence
which relaxes GPL requirements.
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for Linux.
PS: I'm using Debian testing/unstable.
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On linux you should use your package manager (whenever possible), not binaries
from the site (or compile it yourself).
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will
Peter scale to more elaborate logging mechanisms later on...
If all you want from IO is logging why not just use MonadWriter?
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themselves ... ;) please add it to the
Donald list.
I have no login at haskell.org, so I post here. There is a Curry compiler
implemented in Haskell: The Münster Curry Compiler
(http://danae.uni-muenster.de/~lux/curry/).
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John that parsec is picking up  at the beginning of the
All strings in Haskell are unicode - you only have to input them correctly
:-) I've used Streams (somewhere at haskell.org) library to read files in
UTF-8 and then parsed read data with Parsec.
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switched keyboard layout to russian :-)
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library which allows to old more data but has the same
Bulat interface as Data.Map
It's a job for a collections framework, isn't it?
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).
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of the program as a set of equations (as opposed to let).
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can write algorithms in Haskell (3GL), embed
a DSL in it and write a program in that DSL or in several DSLs (4GL).
AFAIK Mathematica is not a logic programming language, thus all its
features can be implemented in Haskell as library, will be Haskell a 5GL
in this case?
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_) = Func!
main = do putStrLn $ show Bar
putStrLn $ show $ Foo (+)
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to generate Haskell code (yeh, I know it's silly, but why not?).
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functions in haskell is
developer allways the same, the most primitive one and i think i cant
developer use it here.
developer writeList [] = ???
developer writeList (x:xs) = (writeHtml x) ???
writeList [] = return ()
writeList (x:xs) = do writeHtml x
writeList xs
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.
There is also an FFI which allows you to call functions written in Haskell
from other languages. In this case your Haskell program must export C-level API
to be used from C++.
Or, and of cause you can use IPC to connect your programs.
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allow all the
Brian control flow/ ease of use issues to be explored just using GHCi
Brian / Hugs etc before tackling the problem of how to get binaries
Brian to interface with the shell.
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@) as Haskell
Conal rather than LaTeX code.
May be mmm-mode will help you, I haven't tried the combination
mmm-mode+latex-mode+haskell-mode. AFAIU it should work (I used
mmm-mode with cweb mode to highlight latex and c code simultaneously).
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have to select submode class (C-c % C-c).
I used CWEB submode class which shipped with mmm-mode. Defining new
submode is pretty easy - look at the documentation which comes with
mmm-mode and examples (on my machine they are in
/usr/share/emacs/site-lisp/mmm-mode/).
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consists of 2 subexpressions:
((3*4) + (2*(12^2))) and 2 connected by the `-' operator, so
ex1 = Sub ex1_2 2
where ex1_2 is an Exp representing ((3*4) + (2*(12^2))) which is
a sum (Plus .).
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(Entry e) = formatEntry e
How can I define compareEntries for this instance?
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:: e - String formatEntry
:: e - String compareEntries :: e - e - Ordering
data Entry a = Entry a
No. I don't want that. The database parsing function returns
Map.Map String Entry but entries can of different types (and
these type vary over styles).
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. Converting entries from
data BibEntry = { beLabel :: String
, beKind :: String
, beProperties :: Map.Map String String
}
is some sort of static type checking of the database.
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:: DaytimeServer - IO DaytimeServer
runDaytimeServer dts = do
dts' - runStreamDaytimeServer dts
dts' - runDgramDaytimeServer dts'
return dts'
runDaytimeServer dts
= runStreamDaytimeServer dts = runDgramDaytimeServer
Don't write
a - foo
return a
write
foo
instead.
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