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author | tomsmeding <tom.smeding@gmail.com> | 2019-12-01 09:42:09 +0100 |
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committer | tomsmeding <tom.smeding@gmail.com> | 2019-12-01 09:42:09 +0100 |
commit | 35f82a2aed37c8daf523ac4c9fbf7112659e8dda (patch) | |
tree | bcd2db31962d357aca764b394f4d236a1a984b4b /2019/Input.hs | |
parent | 89d19c68bdd29e06fad53d61f13df1124b98ea6a (diff) |
Start 2019!
Diffstat (limited to '2019/Input.hs')
-rw-r--r-- | 2019/Input.hs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2019/Input.hs b/2019/Input.hs new file mode 100644 index 0000000..afce44e --- /dev/null +++ b/2019/Input.hs @@ -0,0 +1,20 @@ +module Input where + +import System.Environment +import System.IO + + +getInput :: Int -> IO [String] +getInput day = do + let fname = show day ++ ".in" + + args <- getArgs + str <- case args of + ["-"] -> getContents + [] -> readFile fname + _ -> do + hPutStrLn stderr $ "WARNING: Unrecognised command-line parameters " ++ show args ++ + ", reading from " ++ fname + readFile fname + + return (lines str) |