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authoraarne <aarne@cs.chalmers.se>2008-06-25 16:54:35 +0000
committeraarne <aarne@cs.chalmers.se>2008-06-25 16:54:35 +0000
commite9e80fc389365e24d4300d7d5390c7d833a96c50 (patch)
treef0b58473adaa670bd8fc52ada419d8cad470ee03 /old-examples/CLE/CF2GF.hs
parentb96b36f43de3e2f8b58d5f539daa6f6d47f25870 (diff)
changed names of resource-1.3; added a note on homepage on release
Diffstat (limited to 'old-examples/CLE/CF2GF.hs')
-rw-r--r--old-examples/CLE/CF2GF.hs20
1 files changed, 20 insertions, 0 deletions
diff --git a/old-examples/CLE/CF2GF.hs b/old-examples/CLE/CF2GF.hs
new file mode 100644
index 000000000..1bb1d6611
--- /dev/null
+++ b/old-examples/CLE/CF2GF.hs
@@ -0,0 +1,20 @@
+import Data.List (intersperse)
+import Data.Char (isAlpha)
+
+-- to massage cf rules to funs, in order, preserving comments
+-- to get cats, use pg -printer=gf
+
+cf2gf :: FilePath -> IO ()
+cf2gf file = do
+ ss <- readFile file >>= return . lines
+ mapM_ (putStrLn . mkOne) ss
+
+mkOne line = case words line of
+ fun : cat : "::=" : cats ->
+ let
+ (cats0,cats2) = span (/=";") cats
+ cats1 = filter (isAlpha . head) cats0 ++ [cat]
+ in
+ unwords $ [init fun, ":"] ++ intersperse "->" cats1 ++ cats2
+ _ -> line
+ \ No newline at end of file