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app/biuletynbezpiecznachemia.hs
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43
app/biuletynbezpiecznachemia.hs
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{-# LANGUAGE Arrows, NoMonomorphismRestriction #-}
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import ShadowLibrary.Core
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import Text.XML.HXT.Core
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import Text.XML.HXT.XPath
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-- import Text.XML.HXT.Curl
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import Data.List
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import Data.List.Utils (replace)
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import Text.Regex.Posix
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import Text.Printf
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extractRecords = extractLinksWithText "//a[@class='plik']" -- pary adres-tytuł
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>>> second (arr $ replace "\r\n " " ") -- czyścimy drugi element pary, czyli tytuł z niepotrzebnych białych znaków
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-- ostatecznie wyjdą dwójki ((adres URL, tytuł artykułu)
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-- ... a tutaj te trójki przerabiamy do docelowej struktury ShadowItem
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toShadowItem :: (String, String) -> ShadowItem
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toShadowItem (url, articleTitle) =
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(defaultShadowItem url title) {
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originalDate = Just date,
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itype = "periodical",
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format = Just "pdf",
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finalUrl = url
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}
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where title = articleTitle
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date = getDate articleTitle
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getDate articleTitle =
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case articleTitle =~~ "(19[0-9][0-9]|20[0-9][0-9])" :: Maybe [[String]] of
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Just [[_, year]] -> year
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otherwise -> error $ "unexpected articleTitle: " ++ articleTitle
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main = do
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let start = "https://www.pipc.org.pl/publikacje/biuletyn-bezpieczna-chemia"
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let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
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lname="Biuletyn Bezpieczna Chemia - Publikacje - PIPC",
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lLevel=0,
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webpage=start}
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extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItem)
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