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14
ShadowLibrary/Core.hs
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@ -33,7 +33,7 @@ import Data.Tree.NTree.TypeDefs
import Data.Maybe
import Control.Monad.Trans
import Text.XML.HXT.XPath
import Text.XML.HXT.Curl
-- import Text.XML.HXT.Curl
import Text.XML.HXT.HTTP
import Text.Regex.TDFA
@ -64,8 +64,8 @@ downloadDocument = readFromDocument [withParseHTML yes,
withEncodingErrors no,
withPreserveComment yes,
withStrictInput yes,
-- withHTTP []
withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
withHTTP []
-- withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
]
downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
@ -73,13 +73,13 @@ downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
withEncodingErrors no,
withPreserveComment yes,
withInputEncoding enc,
-- withHTTP []]
withCurl []]
withHTTP []]
-- withCurl []]
downloadXmlDocument = readFromDocument [withWarnings no,
withEncodingErrors no,
-- withHTTP []]
withCurl [] ]
withHTTP []]
-- withCurl [] ]
data ShadowLibrary = ShadowLibrary { logoUrl :: Maybe String,

2
app/almanachmuszyny.hs
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@ -4,7 +4,7 @@ import ShadowLibrary.Core
import Text.XML.HXT.Core
import Text.XML.HXT.XPath
--import Text.XML.HXT.Curl
-- import Text.XML.HXT.Curl
import Data.List
import Data.List.Utils (replace)

105
app/elektronikapraktyczna.hs
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@ -1,105 +0,0 @@
{-# LANGUAGE Arrows, NoMonomorphismRestriction #-}
import ShadowLibrary.Core
import Text.XML.HXT.Core
import Text.XML.HXT.XPath
-- import Text.XML.HXT.Curl
import Data.List
import Data.List.Utils (replace)
import Text.Regex.Posix
import Text.Printf
import Data.Char (toLower)
class Nothingish a where
nada :: a
instance Nothingish [a] where
nada = []
eliminate :: (Nothingish a) => Maybe a -> a
eliminate (Just a) = a
eliminate Nothing = nada
toLowerString :: [Char] -> [Char]
toLowerString str = [ toLower x | x <- str]
mToString :: Maybe String -> String
mToString n
| n == Nothing = ""
| otherwise = eliminate n
extractMonth :: String -> String
extractMonth n =
case n =~~ ("[A-za-z]+" :: String) of
Just month -> "-" ++ eliminate (baseMonthNameToNumber (toLowerString month))
otherwise -> ""
mExtractYear :: String -> String
mExtractYear n =
case n =~~ ("(1[6789]|20)[0-9][0-9]" :: String) of
Just year -> year
otherwise -> ""
changeDate :: String -> Maybe String
changeDate a = Just (eliminate (extractYear a) ++ extractMonth a)
extractLinksWithArticleTitle xpathCondition = (downloadDocument &&& this)
>>> first (getXPathTrees xpathCondition
>>> (
(getXPathTrees "//div[@class='text']" >>> (listA (deep isText >>> getText)
>>> arr (intercalate " ")))
&&&
(getXPathTrees "//div[@class='files__item']/a[contains(@href,'.pdf')]" >>> (getAttrValue "href"))
))
--extractRecords = extractLinksWithText "(//a[@class='magazine-list__year-item'])[last()]" -- pary adres-tytuł
extractRecords = extractLinksWithText "//a[@class='magazine-list__year-item']" -- pary adres-tytuł
>>> second (arr $ replace "\r\n " "") -- czyścimy drugi element pary, czyli tytuł z niepotrzebnych białych znaków
>>> second (arr $ replace " " "") -- czyścimy drugi element pary, czyli tytuł z niepotrzebnych białych znaków
-- >>> first (arr ((++"tr") . init)) -- modyfikujemy pierwszy element pary, czyli adres URL
>>> first (extractLinksWithText "//div[@class='magazine-list__item']/a") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
>>> first (second (arr $ replace "\r\n " ""))
>>> first (first (
-- extractLinksWithArticleTitle "//div[@class='files__item']/a[contains(@href,'.pdf')]"
(extractLinksWithArticleTitle "//div[@class='magazine-single__content-title article text']")
>>>
first (
first (arr $ replace " " "")
>>> first (arr $ replace "\r\n " "")
)
-- >>> first (arr $ replace "\r\n" "")
-- >>> first (arr $ replace "//" "/")
)
-- >>> second (arr $ changeDate) -- Zmiana nazwy miesiąca na wartość liczbową
>>> second (arr $ replace " " "") >>> second (arr $ replace " " "")
) -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
-- ostatecznie wyjdą trójki ((adres URL, tytuł artykułu), tytuł rocznika)
-- ... a tutaj te trójki przerabiamy do docelowej struktury ShadowItem
toShadowItem :: ((((String, String), String), String), String) -> ShadowItem
toShadowItem ((((chapterTitle, url), finalUrl), articleTitle), yearlyTitle) =
(defaultShadowItem url title) {
originalDate = changeDate articleTitle,
itype = "periodical",
format = Just "pdf",
finalUrl = finalUrl
}
where title = "Elektronika Praktyczna " ++ articleTitle ++ " - " ++ chapterTitle
date = yearlyTitle
getDate yearlyTitle =
case yearlyTitle =~~ "/(19[0-9][0-9]|20[0-9][0-9])/" :: Maybe [[String]] of
Just [[_, year]] -> year
otherwise -> error $ "unexpected yearlyTitle: " ++ yearlyTitle
main = do
let start = "https://ep.com.pl/archiwum/"
let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
lname="Elektronika praktyczna",
abbrev="EP",
lLevel=0,
webpage=start}
extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItem)

14
shadow-library.cabal
View File

@ -2,11 +2,11 @@ name: shadow-library
version: 0.1.0.0
synopsis: Initial project template from stack
description: Please see README.md
homepage: https://git.wmi.amu.edu.pl/s426206/twilight-library.git
homepage: http://github.com/name/project
license: Proprietary
license-file: LICENSE
author: Jan Nowak
maintainer: jannow2@st.amu.edu.pl
author: Your name here
maintainer: your.address@example.com
-- copyright:
category: Web
build-type: Simple
@ -20,7 +20,6 @@ library
, HTTP
, hxt
, hxt-http
, hxt-curl
, hxt-xpath
, MissingH
, monad-logger
@ -48,14 +47,13 @@ library
-- , shadow-library
-- default-language: Haskell2010
executable elektronikapraktyczna
executable almanachmuszyny
hs-source-dirs: app
main-is: elektronikapraktyczna.hs
main-is: almanachmuszyny.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, hxt
, hxt-xpath
, hxt-curl
, MissingH
, regex-posix
, shadow-library
@ -64,4 +62,4 @@ executable elektronikapraktyczna
source-repository head
type: git
location: https://git.wmi.amu.edu.pl/s426206/twilight-library.git
location: https://github.com/name/project

19
stack.yaml.lock
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@ -1,19 +0,0 @@
# This file was autogenerated by Stack.
# You should not edit this file by hand.
# For more information, please see the documentation at:
# https://docs.haskellstack.org/en/stable/lock_files
packages:
- completed:
hackage: hxt-xpath-9.1.2.2@sha256:9cd590ae93a04573db8f90fa4094625ebd97dded45da7667c577ce6b38a42900,1999
pantry-tree:
size: 2225
sha256: aee2f75974e868ff429b8ff349a29667536c60397098f5dfedc968d1951511bb
original:
hackage: hxt-xpath-9.1.2.2
snapshots:
- completed:
size: 507596
url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/11/9.yaml
sha256: 42f472dbf06482da1b3319241f3e3b3593a45bd7d4f537d2789f21386b9b2ad3
original: lts-11.9