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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>My goal is to parse a big text-file line by line using the same parser for every line.<o:p></o:p></p><p class=MsoNormal>I am new to Conduit and I’ve read this <a href="https://www.fpcomplete.com/user/chad/snippets/random-code-snippets/folding-lines-in-conduit">https://www.fpcomplete.com/user/chad/snippets/random-code-snippets/folding-lines-in-conduit</a> article.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>After adding import Control.Monad.Trans.Resource for runResourceT and adding rankNTypes, I got it working. <o:p></o:p></p><p class=MsoNormal>Code in <a href="http://www.tbsoftware.nl/TestConduit/TestConduit7.hs">www.tbsoftware.nl/TestConduit/TestConduit7.hs</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I don't understand what is going on in myFunc. Does CL.fold fold over the already read lines? <o:p></o:p></p><p class=MsoNormal>I wonder whether CL.fold loads the whole file in memory?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>if I change <o:p></o:p></p><p class=MsoNormal> count <- CL.fold (\count t -> count + T.length t) 0 to<o:p></o:p></p><p class=MsoNormal> count <- CL.fold (\count t -> T.length t) 0 <o:p></o:p></p><p class=MsoNormal>nothing changes in the output. If count is always zero, why using a fold?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>How can I get the ‘current line’ in myFunc? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kees<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>