forked from filipg/twilight-library
65 lines
2.7 KiB
Haskell
65 lines
2.7 KiB
Haskell
|
{-# 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
|
||
|
|
|
||
|
|
|
||
|
|
extractNestedRecords = extractLinksWithText "//a[@class='archiveVolume' and not(contains(@href, '.PDF')) and not(contains(@href, '.pdf'))]" -- pary adres-tytuł
|
||
|
|
>>> second (arr $ replace "\r\n\t\t\t\t" "") -- czyścimy drugi element pary, czyli tytuł z niepotrzebnych białych znaków
|
||
|
|
>>> first (extractLinksWithText "//a[contains(@href,'.pdf')]") -- pobieramy stronę z adresu URL i wyciągamy linki z tej strony pasujące do wyrażenia XPathowego
|
||
|
|
-- ostatecznie wyjdą trójki ((adres URL, tytuł artykułu), tytuł rocznika)
|
||
|
|
|
||
|
|
extractRecords = extractLinksWithText "//a[@class='archiveVolume' and (contains(@href,'.pdf') or contains(@href,'.PDF'))]"
|
||
|
|
>>> second (arr $ replace "\t" " ")
|
||
|
|
|
||
|
|
-- ... a tutaj te trójki przerabiamy do docelowej struktury ShadowItem
|
||
|
|
toShadowItem :: ((String, String), String) -> ShadowItem
|
||
|
|
toShadowItem ((url, articleTitle), yearlyTitle) =
|
||
|
|
(defaultShadowItem url title) {
|
||
|
|
originalDate = Just date,
|
||
|
|
itype = "periodical",
|
||
|
|
format = Just "pdf",
|
||
|
|
finalUrl = url
|
||
|
|
}
|
||
|
|
where title = "Zagadnienia ekonomiki rolnej " ++ yearlyTitle ++ " " ++ (replace "\r\n" "" (replace "\r\n " "" articleTitle))
|
||
|
|
date = getDate yearlyTitle
|
||
|
|
|
||
|
|
toShadowItemTop :: (String, String) -> ShadowItem
|
||
|
|
toShadowItemTop (url, articleTitle) =
|
||
|
|
(defaultShadowItem url title) {
|
||
|
|
originalDate = Just date,
|
||
|
|
itype = "periodical",
|
||
|
|
format = Just "pdf",
|
||
|
|
finalUrl = url
|
||
|
|
}
|
||
|
|
where title = "Zagadnienia ekonomiki rolnej " ++ " " ++ (replace "\r\n" "" (replace "\r\n " "" articleTitle))
|
||
|
|
date = getDateTop url
|
||
|
|
|
||
|
|
|
||
|
|
getDate url =
|
||
|
|
case url =~~ "[0-9]?[0-9]/(19[0-9][0-9]|20[0-9][0-9])" :: Maybe [[String]] of
|
||
|
|
Just [[month, year]] -> month
|
||
|
|
otherwise -> error $ "unexpected url: " ++ url
|
||
|
|
|
||
|
|
getDateTop url =
|
||
|
|
case url =~~ "[0-9]*(19[0-9][0-9]|20[0-9][0-9])" :: Maybe [[String]] of
|
||
|
|
Just [[_, year]] -> year
|
||
|
|
otherwise -> error $ "unexpected url: " ++ url
|
||
|
|
|
||
|
|
main = do
|
||
|
|
let start = "http://www.zer.waw.pl/Archive"
|
||
|
|
let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
|
||
|
|
lname="Ekonomika Rolna",
|
||
|
|
abbrev="EkonRol",
|
||
|
|
lLevel=0,
|
||
|
|
webpage=start}
|
||
|
|
extractItemsStartingFromUrl shadowLibrary start (extractNestedRecords >>> arr toShadowItem)
|
||
|
|
extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItemTop)
|