GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3

src-3.0/tools/AlphaConvGF.hs

@@ -0,0 +1,43 @@
+----------------------------------------------------------------------
+-- |
+-- Maintainer  : AR
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/04/16 05:40:50 $ 
+-- > CVS $Author: peb $
+-- > CVS $Revision: 1.4 $
+--
+-- (Description of the module)
+-----------------------------------------------------------------------------
+
+module Main (main) where
+
+import LexGF
+import Alex
+import System
+
+main :: IO ()
+main = do
+  file1:file2:_ <- getArgs
+  s  <- readFile file1
+  ts <- tokens s
+  if file1==file2 then print (length ts) else return () -- make sure file1 is in mem
+  writeFile file2 []                       -- create file2 or remove its old contents
+  alphaConv file2 ts (Pn 1 1 1)
+
+alphaConv :: FilePath -> [Token] -> Posn -> IO ()
+alphaConv file (t:ts) p0 = case t of
+  PT p (TV s) -> changeId file p0 p s ts
+  _ -> putToken file p0 t >>= alphaConv file ts
+alphaConv _ _ = putStrLn "Ready."
+
+putToken :: FilePath -> Posn -> Token -> IO Posn
+putToken file (Pn _ l0 c0) t@(PT (Pn a l c) _) = do
+  let s  = prToken t 
+      ns = l - l0
+      ls = length s
+  replicate ns $ appendFile file '\n'
+  replicate (if ns == 0 then c - c0 else c-1) $ putChar ' '
+  putStr s 
+  return $ Pn (a + ls) l (c + ls) ts