Hello all 
I am trying to write a Haskell program which download html pages from wikipedia   including images and convert them into pdf . I wrote a small script 

import Network.HTTP
import Data.Maybe
import Data.List

main = do 
        x <- getLine 
        htmlpage <-  getResponseBody =<< simpleHTTP ( getRequest x ) --open url
        --print.words $ htmlpage 
        let ind_1 = fromJust . ( \n -> findIndex ( n `isPrefixOf`) . tails $ htmlpage ) $ "<!-- content -->"
            ind_2 = fromJust . ( \n -> findIndex ( n `isPrefixOf`) . tails $ htmlpage ) $ "<!-- /content -->"
            tmphtml = drop ind_1 $ take ind_2  htmlpage
        writeFile "down.html" tmphtml
        
and its working fine except some symbols are not rendering as it should be. Could some one please suggest me how to accomplish this task. 

Thank you
Mukesh Tiwari