Re: [Haskell-cafe] A function using List and Tuple

On 6/19/06, Sara Kenedy <[EMAIL PROTECTED]> wrote: Hello, I want to creat a function sumList as below examples: sumList [("s1",2),("s2",4),("s3",3),("s4",2)] = ("#", 1/2 + 1/4 + 1/3 + 1/2) sumList [("s1",2),("s2",4),("s3",3) = ("#", 1/2 + 1/4 + 1/3) I attempted it as following: sumList :: (Fr

[Haskell-cafe] A function using List and Tuple

Hello, I want to creat a function sumList as below examples: sumList [("s1",2),("s2",4),("s3",3),("s4",2)] = ("#", 1/2 + 1/4 + 1/3 + 1/2) sumList [("s1",2),("s2",4),("s3",3) = ("#", 1/2 + 1/4 + 1/3) I attempted it as following: sumList :: (Fractional a) => [(String,a)] -> (String, a) sumList [

Re: [Haskell-cafe] Fibonacci numbers generator in Haskell

G'day all. Quoting Mathew Mills <[EMAIL PROTECTED]>: > I guess I don't get any points for an approximate solution, ay? If only there was an iterative algorithm. Then you could use your method to get a great initial estimate... Cheers, Andrew Bromage

Re: [Haskell-cafe] Parsec and destructuring HTML content

Hi hugs (winhugs) is rather fast, loading several KLOCs per second, and finally you can compile program with ghc WinHugs (but not Hugs) also has a feature called auto-reload - if you change and save any of the source code files it will automatically detect and reload them - no more ":r" :) An

Re: [Haskell-cafe] Parsec and destructuring HTML content

Hello Joel, Sunday, June 18, 2006, 4:30:35 PM, you wrote: > I think that developing HTML scrapers requires short tweak-compile- > run cycles and is probably best done in Perl, Python, Ruby, i.e. > dynamic languages but I wonder if someone has found otherwise. hugs (winhugs) is rather fast, loa

[Haskell-cafe] Parsec and destructuring HTML content

Has anyone explored destructuring HTML with Parsec? Any other ideas on how to best do this? I'm looking to scrape bits of information from more or less unstructured HTML pages. I'm looking to structure, tag and classify the content afterwards. I think that developing HTML scrapers require

Re[2]: [Haskell-cafe] take the keywords from a string

Hello Sara, Sunday, June 18, 2006, 9:04:05 AM, you wrote: you should write stop alternatives first, because Haskell tries alternatives just sequentially, topmost first: listOfString :: [(String,String)] -> [String] listOfString [("","")] = [] listOfString [(s1,s2)] = s1: listOfString (lex s2)