Made conditional compilation of readline stuff cleaner

src/GF/System/NoReadline.hs

@@ -0,0 +1,27 @@
+----------------------------------------------------------------------
+-- |
+-- Module      : GF.System.NoReadline
+-- Maintainer  : BB
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/05/10 15:04:01 $ 
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.1 $
+--
+-- Do not use readline.
+-----------------------------------------------------------------------------
+
+module GF.System.NoReadline (fetchCommand) where
+
+import System.IO.Error (try)
+import System.IO (stdout,hFlush)
+
+fetchCommand :: String -> IO (String)
+fetchCommand s = do
+  putStr s
+  hFlush stdout
+  res <- try getLine
+  case res of
+   Left e -> return "q"
+   Right l -> return l

src/GF/System/Readline.hs

@@ -7,9 +7,9 @@
 -- Stability   : (stable)
 -- Portability : (portable)
 --
--- > CVS $Date: 2005/05/10 14:55:01 $ 
+-- > CVS $Date: 2005/05/10 15:04:01 $ 
 -- > CVS $Author: bringert $
--- > CVS $Revision: 1.1 $
+-- > CVS $Revision: 1.2 $
 --
 -- Uses the right readline library to read user input.
 -----------------------------------------------------------------------------
@@ -18,34 +18,10 @@ module GF.System.Readline (fetchCommand) where
 
 #ifdef USE_READLINE
 
-import System.Console.Readline (readline, addHistory)
+import GF.System.UseReadline (fetchCommand)
 
 #else
 
-import System.IO.Error (try)
-import System.IO (stdout,hFlush)
-
-#endif
-
-#ifdef USE_READLINE
-
-fetchCommand :: String -> IO (String)
-fetchCommand s = do
-  res <- readline s
-  case res of
-   Nothing -> return "q"
-   Just s -> do addHistory s
-                return s
-
-#else
-
-fetchCommand :: String -> IO (String)
-fetchCommand s = do
-  putStr s
-  hFlush stdout
-  res <- try getLine
-  case res of
-   Left e -> return "q"
-   Right l -> return l
+import GF.System.NoReadline (fetchCommand)
 
 #endif

src/GF/System/UseReadline.hs

@@ -0,0 +1,25 @@
+----------------------------------------------------------------------
+-- |
+-- Module      : GF.System.UseReadline
+-- Maintainer  : BB
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/05/10 15:04:01 $ 
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.1 $
+--
+-- Use GNU readline
+-----------------------------------------------------------------------------
+
+module GF.System.UseReadline (fetchCommand) where
+
+import System.Console.Readline (readline, addHistory)
+
+fetchCommand :: String -> IO (String)
+fetchCommand s = do
+  res <- readline s
+  case res of
+   Nothing -> return "q"
+   Just s -> do addHistory s
+                return s

src/Makefile

@@ -112,8 +112,8 @@ ghci-trace: GHCFLAGS += -DTRACING
 ghci-trace: ghci
 
 touch-files: 
-	rm -f GF/System/Tracing.{hi,o} GF/System/Readline.{hi,o}
-	touch GF/System/Tracing.hs GF/System/Readline.hs
+	rm -f GF/System/Tracing.{hi,o}
+	touch GF/System/Tracing.hs
 
 # profiling
 prof: GHCOPTFLAGS += -prof -auto-all -auto-dicts