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11
README.md
11
README.md
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# Zadanie "robot haskell"
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## Przykładowy output:
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```ShadowItem {url = Just "https://aneks.kulturaliberalna.pl/wp-content/uploads/2016/02/51%C3%94%C3%87%C3%B452-With-Watermark.pdf", title = "Aneks Nr 51\8211\&52 1988", itype = "periodical", originalDate = Just "2016", creator = Nothing, format = Just "pdf", lang = Just "pol", finalUrl = "https://aneks.kulturaliberalna.pl/wp-content/uploads/2016/02/51%C3%94%C3%87%C3%B452-With-Watermark.pdf", description = Nothing}```
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## Ekstrakcja info o .pdf ze strony https://aneks.kulturaliberalna.pl/archiwum-aneksu/:
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```haskell
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extractRecords = extractLinksWithText "//a[contains(@title,'Aneks') and contains(text(),'Nr')]"
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>>> second (arr $ replace "\n" "")
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>>> first (extractLinksWithText "//div/a[contains(@href,'.pdf')]") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
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-- ostatecznie wyjdą trójki? ((Link, tekst: "Wyświetl cały numer"), Numer Magazynu)```
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@ -33,7 +33,7 @@ import Data.Tree.NTree.TypeDefs
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import Data.Maybe
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import Data.Maybe
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import Control.Monad.Trans
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import Control.Monad.Trans
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import Text.XML.HXT.XPath
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import Text.XML.HXT.XPath
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import Text.XML.HXT.Curl
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-- import Text.XML.HXT.Curl
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import Text.XML.HXT.HTTP
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import Text.XML.HXT.HTTP
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import Text.Regex.TDFA
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import Text.Regex.TDFA
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@ -64,8 +64,8 @@ downloadDocument = readFromDocument [withParseHTML yes,
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withEncodingErrors no,
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withEncodingErrors no,
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withPreserveComment yes,
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withPreserveComment yes,
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withStrictInput yes,
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withStrictInput yes,
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-- withHTTP []
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withHTTP []
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withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
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-- withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
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]
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]
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downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
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downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
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@ -73,13 +73,13 @@ downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
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withEncodingErrors no,
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withEncodingErrors no,
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withPreserveComment yes,
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withPreserveComment yes,
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withInputEncoding enc,
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withInputEncoding enc,
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-- withHTTP []]
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withHTTP []]
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withCurl []]
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-- withCurl []]
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downloadXmlDocument = readFromDocument [withWarnings no,
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downloadXmlDocument = readFromDocument [withWarnings no,
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withEncodingErrors no,
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withEncodingErrors no,
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-- withHTTP []]
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withHTTP []]
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withCurl [] ]
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-- withCurl [] ]
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data ShadowLibrary = ShadowLibrary { logoUrl :: Maybe String,
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data ShadowLibrary = ShadowLibrary { logoUrl :: Maybe String,
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46
app/aneks.hs
46
app/aneks.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[contains(@title,'Aneks') and contains(text(),'Nr')]"
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>>> second (arr $ replace "\n" "")
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>>> first (extractLinksWithText "//div/a[contains(@href,'.pdf')]") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
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-- ostatecznie wyjdą trójki? ((Link, tekst: "Wyświetl cały numer"), Numer Magazynu)
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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, blank), 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 = "Aneks " ++ yearlyTitle
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date = getDate url
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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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Just [[_, year]] -> year
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otherwise -> error $ "unexpected url: " ++ url
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main = do
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let start = "https://aneks.kulturaliberalna.pl/archiwum-aneksu/"
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let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
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lname="Archiwum Aneksu",
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abbrev="ArchAnek",
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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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@ -20,7 +20,6 @@ library
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, HTTP
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, HTTP
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, hxt
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, hxt
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, hxt-http
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, hxt-http
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, hxt-curl
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, hxt-xpath
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, hxt-xpath
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, MissingH
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, MissingH
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, monad-logger
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, monad-logger
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@ -55,26 +54,11 @@ executable almanachmuszyny
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build-depends: base
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build-depends: base
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, hxt
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, hxt
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, hxt-xpath
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, hxt-xpath
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, hxt-curl
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, MissingH
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, MissingH
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, regex-posix
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, regex-posix
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, shadow-library
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, shadow-library
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default-language: Haskell2010
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default-language: Haskell2010
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executable aneks
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hs-source-dirs: app
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main-is: aneks.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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, hxt-xpath
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, hxt-curl
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, MissingH
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, regex-posix
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, shadow-library
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default-language: Haskell2010
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source-repository head
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source-repository head
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type: git
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type: git
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@ -1,19 +0,0 @@
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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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