where
import Prelude hiding (readFile)
-import System.Directory(doesFileExist)
+import System.Directory (doesFileExist)
import System.IO (
Handle,
IOMode (WriteMode),
stdout
)
import System.IO.UTF8 (readFile)
+import Text.Regex.Posix ((=~))
import Text.XML.HXT.Core
-import CommandLine (Args(..), apply_args, show_help)
+import CommandLine (show_help)
+import Configuration (Cfg(..), get_cfg)
import LWN.Page
+import LWN.URI (is_lwn_url, make_absolute_url)
+import Misc (contains)
my_read_opts :: SysConfigList
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
+real_article_path s = do
+ is_file <- doesFileExist s
+ return $ if is_file then s else check_cases
+ where
+ abs_current =
+ case make_absolute_url "current" of
+ Nothing -> s
+ Just ac -> ac
+ abs_s =
+ case make_absolute_url s of
+ Nothing -> s
+ Just as -> as
+
+ check_cases :: String
+ check_cases
+ | is_lwn_url s = s
+ | s `contains` "current" = abs_current
+ | s =~ "^[0-9]+$" = abs_s
+ | otherwise = s -- Give up
main :: IO ()
main = do
- Args{..} <- apply_args
+ Cfg{..} <- get_cfg
output_handle <- get_output_handle output
maybe_html <- get_xml_from_article article