twilight-library/app/wszechswiat.hs
2021-03-21 18:31:20 +01:00

46 lines
1.4 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
extractRecords = extractLinksWithText "//a[contains(@href,'.pdf')]"
toShadowItem :: (String, String) -> ShadowItem
toShadowItem (url, nr) =
(defaultShadowItem url title) {
originalDate = Just date,
itype = "periodical",
format = Just "pdf",
finalUrl = url
}
where title = "Wszechświat " ++ "Rok " ++ getDate url ++ " " ++ getNr nr
date = getDate url
getDate url =
case url =~~ "/pdf_(19[0-9][0-9]|20[0-9][0-9]|18[0-9][0-9]|19[0-9][0-9]_19[0-9][0-9])/" :: Maybe [[String]] of
Just [[_, year]] -> year
otherwise -> error $ "unexpected url: " ++ url
getNr nr =
case nr =~~ "(Nr [0-9][0-9]|Nr [0-9][0-9]-[0-9][0-9])" :: Maybe [[String]] of
Just [[_, nr]] -> nr
otherwise -> error $ "unexpected url: " ++ nr
main = do
let start = "https://www.ptpk.org/archiwum.html"
let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
lname="Czasopismo Wszechświat",
abbrev="Wszechświat",
lLevel=0,
webpage=start}
extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItem)