Zrobiony robot pobierajacy informacje o pdf.
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@ -12,28 +12,36 @@ import Text.Regex.Posix
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import Text.Printf
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extractRecords = extractLinksWithText "//a[@class='roczniki']" -- 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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extractRecords = extractLinksWithText "(//a[@class='magazine-list__year-item'])[last()]" -- 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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>>> second (arr $ replace " " "") -- czyścimy drugi element pary, czyli tytuł z niepotrzebnych białych znaków
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-- >>> first (arr ((++"tr") . init)) -- modyfikujemy pierwszy element pary, czyli adres URL
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-- >>> first (extractLinksWithText "//li/a[contains(@href,'.pdf')]") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
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>>> first (extractLinksWithText "//div[@class='magazine-list__item']/a") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
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>>> first (second (arr $ replace "\r\n " ""))
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>>> first (first (
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extractLinksWithText "//div[@class='files__item']/a[contains(@href,'.pdf')]"
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>>> second (arr $ replace "\r\n " "")
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>>> first (arr $ replace "//" "/")
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)
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) -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
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-- ostatecznie wyjdą trójki ((adres URL, tytuł artykułu), tytuł rocznika)
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-- ... a tutaj te trójki przerabiamy do docelowej struktury ShadowItem
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toShadowItem :: ((String, String), String) -> ShadowItem
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toShadowItem ((url, articleTitle), yearlyTitle) =
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toShadowItem :: (((String, String), String), String) -> ShadowItem
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toShadowItem (((url, chapterTitle), articleTitle), yearlyTitle) =
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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 = "Almanach Muszyny " ++ yearlyTitle ++ " " ++ (replace "\r\n" "" (replace "\r\n " "" articleTitle))
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date = getDate url
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where title = "Elektronika Praktyczna " ++ yearlyTitle ++ " " ++ articleTitle
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date = yearlyTitle
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getDate url =
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case url =~~ "/(19[0-9][0-9]|20[0-9][0-9])/" :: Maybe [[String]] of
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getDate yearlyTitle =
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case yearlyTitle =~~ "/(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 url: " ++ url
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otherwise -> error $ "unexpected yearlyTitle: " ++ yearlyTitle
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main = do
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@ -43,4 +51,4 @@ main = do
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abbrev="EP",
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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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extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItem)
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@ -48,9 +48,9 @@ library
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-- , shadow-library
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-- default-language: Haskell2010
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executable almanachmuszyny
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executable elektronikapraktyczna
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hs-source-dirs: app
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main-is: almanachmuszyny.hs
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main-is: elektronikapraktyczna.hs
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ghc-options: -threaded -rtsopts -with-rtsopts=-N
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build-depends: base
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, hxt
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19
stack.yaml.lock
Normal file
19
stack.yaml.lock
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@ -0,0 +1,19 @@
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# This file was autogenerated by Stack.
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# You should not edit this file by hand.
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# For more information, please see the documentation at:
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# https://docs.haskellstack.org/en/stable/lock_files
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packages:
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- completed:
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hackage: hxt-xpath-9.1.2.2@sha256:9cd590ae93a04573db8f90fa4094625ebd97dded45da7667c577ce6b38a42900,1999
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pantry-tree:
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size: 2225
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sha256: aee2f75974e868ff429b8ff349a29667536c60397098f5dfedc968d1951511bb
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original:
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hackage: hxt-xpath-9.1.2.2
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snapshots:
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- completed:
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size: 507596
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url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/11/9.yaml
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sha256: 42f472dbf06482da1b3319241f3e3b3593a45bd7d4f537d2789f21386b9b2ad3
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original: lts-11.9
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