Combine ArticlePage and FullPage into one Page type.

[dead/lwn-epub.git] / src / Main.hs

diff --git a/src/Main.hs b/src/Main.hs
index a810bc9d9ab04f4c14b9288dd0e7ea1a14527d0a..373d423c9f322ba885db966fecff5b7e190c4dd4 100644 (file)
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -1,17 +1,54 @@
-{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE ScopedTypeVariables, RecordWildCards #-}
 module Main
 where
 
-import Data.Maybe (fromJust)
-import Text.HandsomeSoup (parseHtml)
+import System.IO (
+  Handle,
+  IOMode (WriteMode),
+  openBinaryFile,
+  stdout
+  )
+import Text.XML.HXT.Core
 
-import Epublishable
-import LWN.ArticlePage
+import CommandLine (Args(..), apply_args)
+import LWN.Page
+
+my_read :: String -> IOStateArrow s b XmlTree
+my_read =
+  readDocument [ withValidate  no,
+                 withParseHTML yes,
+                 withInputEncoding utf8,
+                 withWarnings no ]
+
+-- | If we're given an empty path, return a handle to
+--   'stdout'. Otherwise, open the given file and return a read/write
+--   handle to that.
+get_output_handle :: FilePath -> IO Handle
+get_output_handle path =
+  if (null path) then
+    return stdout
+  else
+    openBinaryFile path WriteMode
+
+
+-- | Convert the given article to either a URL or a filesystem
+--   path. If the given article exists on the filesystem, we assume
+--   it's a file. Otherwise, we check to see if it's a URL. Failing
+--   that, we try to construct a URL from what we're given and do our
+--   best.
+real_article_path :: String -> IO String
+real_article_path = return . id
 
 main :: IO ()
 main = do
-  article_html <- readFile "test/fixtures/501317-article.html"
-  ioap <- parse $ parseHtml article_html
-  let article_page :: ArticlePage = fromJust $ ioap
-  epublish article_page "out.epub"
+  Args{..} <- apply_args
+  output_handle <- get_output_handle output
+  input_path <- real_article_path article
+  let html = my_read input_path
+  result <- parse html
+
+  case result of
+    Just stuff  -> epublish stuff output_handle
+    Nothing     -> return ()
+
   putStrLn "Done."