Daniel McAllansmith [EMAIL PROTECTED] writes:
Hello.
I have some html from which I want to extract records.
Each record is represented within a number of tr nodes, and all records
tr
nodes are contained by the same parent node.
This is very poorly written HTML. The original structure
Brian Hulley [EMAIL PROTECTED] writes:
You'll never believe it but I've been struggling last night and all of
today to try and think up a name for the following type and I'm still
nowhere near a solution:
data ??? = VarId | VarSym | ConId | ConSym
Perhaps Atom.
Henning Thielemann [EMAIL PROTECTED] writes:
Here is another approach of questionable classification of languages. :-)
A lazy functional program is demand driven, an imperative program is
supply driven.
So is Haskell a Keynesian language and C++ a Say language?
Great, now we can talk
: Thomas Conway ] Re: [Haskell-cafe] How can we detect and fix
E [ 19: Albert Lai ] Re: [Haskell-cafe] Either e Monad
E [ 19: Deokhwan Kim]
[ 62: Bas van Dijk]
E [ 47: [EMAIL PROTECTED] [Haskell-cafe] Re: Optimization problem
[ 51: Ross Paterson
Deokhwan Kim [EMAIL PROTECTED] writes:
Where is the Monad instance declaration of Either e?
It is in Control.Monad.Error as well. Strange: the doc doesn't state it.
I found out in ghci using:
:module +Control.Monad.Error
:info Either
The relevant result is:
instance Error e = Monad (Either
Tim Newsham [EMAIL PROTECTED] writes:
I thought this one would be easy but I'm starting to think its not.
I am playing with HaXml and I want to transform an XML tree into
another tree. The transforms are simple enough, but the kicker
is that I want them to be stateful. In this example, the
Brian Hulley [EMAIL PROTECTED] writes:
Also, the bottom line imho is that Haskell is a difficult language to
understand, and this is compounded by the apparent cleverness of
unreadable code like:
c = (.) . (.)
when a normal person would just write:
c f g a b = f (g a b)
All
Alberto G. Corona [EMAIL PROTECTED] writes:
stmcache= newTVar 0
I will explain what this doesn't with an analogy.
import Data.IORef
notglobal = newIORef True
main = do a - notglobal
b - notglobal
writeIORef a False
x - readIORef b
print x
To better
I particularly like OCaml's provision of subtyping. As a member of
the ML family, it's module system is also quite formidable. Of course
the imperative constructs are also pretty convenient when you just
want to be quirky. But I miss the monad do-notation.
I offer a simpler, more direct, and pre-existing correspondence
between a functional programming construct and unix pipes:
http://www.vex.net/~trebla/weblog/pointfree.html
Scherrer, Chad [EMAIL PROTECTED] writes:
I'm still trying to settle on a feel for good programming style in
Haskell.
Huong Nguyen [EMAIL PROTECTED] writes:
newtype Parser a = Parser(String - [(a, String)])
[...]
parse :: Parser a - String - [(a, String)]
parse p cs = p cs
\end{code}
Try this instead:
parse (Parser p) cs = p cs
(You forgot to deconstruct! :) )
Malcolm Wallace [EMAIL PROTECTED] writes:
Microsoft has announced the following:
Developers can also expect a new scripting language for management
applications, called Monad.
If we embedded the Monad language, as a DSL, into Haskell using a
Haskell monad, would we get to call it
Andy Gimblett [EMAIL PROTECTED] writes:
show (External p q) = ( ++ show p ++ [] ++ show q ++ )
but to me the extensive use of ++ is not particularly readable.
[...]
return (%s [] %s) % (self.p, self.q)
which to me seems clearer, or at least easier to work out roughly what
Alexandre Weffort Thenorio [EMAIL PROTECTED] writes:
outputLine keyno key orgFile = do
part1 - getLeft keyno orgFile
part2 - getRight keyno orgFile
total - part1 ++ (strUpper key) ++ part2 ++ \n
newHexFile - openFileEx newfile (BinaryMode WriteMode)
hPutStrLn newHexFile
Bernard Pope [EMAIL PROTECTED] writes:
I also meant to add that I think these solutions are not what Lloyd is
after, because they rely on recursive equations, which I believe was
avoided in Lloyd's SML code.
Those recursive equations are avoided in SML because SML is eager - y
f = f (y f)
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