Html parsing in haskell

Question

I am trying to parse alinks from the main body ( <article>) of a blog post. I adapted what I found on FPComplete , but nothing was printed. (The code does not work, as far as I can see, how to run it in the online IDE, and for the purpose of Bing, it also does not create links.)

In GHCI, I can mimic the first line of parseAF, and this gives me a large entry that I think is correct. But cursor $// findNodes &| extractDatareturns[]

I tried regex, but didn't like it, trying to find such a long piece of text.

Can anyone help?

{-# LANGUAGE OverloadedStrings #-}

module HtmlParser where

import Network.HTTP.Conduit (simpleHttp)
import Prelude hiding (concat, putStrLn)
import Data.Text (concat)
import Data.Text.IO (putStrLn)
import Text.HTML.DOM (parseLBS)
import Text.XML.Cursor (Cursor, attribute, element, fromDocument, ($//), (&//), (&/), (&|))

-- The URL we're going to search
url = "http://www.amsterdamfoodie.nl/2015/wine-beer-food-restaurants-troost/"

-- The data we're going to search for
findNodes :: Cursor -> [Cursor]
findNodes = element "article" &/ element "a"

-- Extract the data from each node in turn
extractData = concat . attribute "href"

cursorFor :: String -> IO Cursor
cursorFor u = do
     page <- simpleHttp u
     return $ fromDocument $ parseLBS page

-- Process the list of data elements
processData = mapM_ putStrLn

-- main = do
parseAF :: IO ()
parseAF = do
     cursor <- cursorFor url
     processData $ cursor $// findNodes &| extractData

. , element "article". element "p", , p article, . ....!!

Answer 1

, HXT, :

{-# LANGUAGE Arrows #-}

import Text.XML.HXT.Core
import Text.XML.HXT.Curl
import Text.XML.HXT.TagSoup

links url = extract (readDocument
  [ withParseHTML yes
  , withTagSoup
  , withCurl      []
  , withWarnings  no
  ] url)

extract doc = runX $ doc >>> xmlFilter "article" >>> xmlFilter "a" >>> toHref

xmlFilter name = deep (hasName name)

toHref = proc el -> do
   link    <- getAttrValue "href" -< el
   returnA -< link

:

links "http://www.amsterdamfoodie.nl/2015/wine-beer-food-restaurants-troost/"

Answer 2

, , &/ , &//

findNodes = element "article" &// element "a"