getDate fix

.vscode/tasks.json

@@ -0,0 +1,50 @@
+
+{
+  // Automatically created by phoityne-vscode extension.
+
+  "version": "2.0.0",
+  "presentation": {
+    "reveal": "always",
+    "panel": "new"
+  },
+  "tasks": [
+    {
+      // F7
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "label": "haskell build",
+      "type": "shell",
+      //"command": "cabal configure && cabal build"
+      "command": "stack build"
+    },
+    {
+      // F6
+      "group": "build",
+      "type": "shell",
+      "label": "haskell clean & build",
+      //"command": "cabal clean && cabal configure && cabal build"
+      "command": "stack clean && stack build"
+      //"command": "stack clean ; stack build"  // for powershell
+    },
+    {
+      // F8
+      "group": {
+        "kind": "test",
+        "isDefault": true
+      },
+      "type": "shell",
+      "label": "haskell test",
+      //"command": "cabal test"
+      "command": "stack test"
+    },
+    {
+      // F6
+      "isBackground": true,
+      "type": "shell",
+      "label": "haskell watch",
+      "command": "stack build --test --no-run-tests --file-watch"
+    }
+  ]
+}

app/otwarteczasopismauam.hs

@@ -7,7 +7,8 @@ import Text.XML.HXT.XPath
 import Text.XML.HXT.Curl
 import Data.List
 import Data.List.Utils (replace)
-
+import Text.Regex.TDFA
+-- import Text.Regex.TDFA.Text ()
 import Text.Regex.Posix
 import Text.Printf
 
@@ -29,10 +30,14 @@ toShadowItem (((url, articleTitle), yearlyTitle), journalTitle) =
   where title = replace "\n" "" (replace "\t" "" (journalTitle ++ " " ++  yearlyTitle ++ " " ++ articleTitle))
         date = getDate yearlyTitle
 
-getDate yearlyTitle =
+-- getDate yearlyTitle =
-  case yearlyTitle =~~ "(19[0-9][0-9]|20[0-9][0-9])" :: Maybe [[String]] of
+--   case yearlyTitle =~~ "(19[0-9][0-9]|20[0-9][0-9])" :: Maybe [[String]] of
-    Just [[_, year]] -> year
+--     Just [[_, year]] -> year
-    otherwise -> error $ "unexpected text: " ++ yearlyTitle
+--     otherwise -> error $ "unexpected text: " ++ yearlyTitle
+
+getDate :: String -> String
+getDate yearlyTitle = date where
+  date = yearlyTitle Text.Regex.TDFA.=~ "(19[0-9][0-9]|20[0-9][0-9])" :: String
 
 
 main = do

shadow-library.cabal

@@ -28,6 +28,7 @@ library
                      , network-uri
                      , regex-pcre
                      , regex-tdfa
+                     , regex-tdfa-text
                      , resourcet
                      , text
                      , time
@@ -70,6 +71,8 @@ executable otwarteczasopismauam
                       , hxt-curl
                       , MissingH
                       , regex-posix
+                      , regex-tdfa
+                      , regex-tdfa-text
                       , shadow-library
    default-language:    Haskell2010
 

stack.yaml.lock

@@ -0,0 +1,19 @@
+# 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