Founding the newly structured GF2.0 cvs archive.

src/GF/Text/Text.hs

@@ -0,0 +1,56 @@
+module Text where
+
+import Operations
+import Char
+
+-- elementary text postprocessing. AR 21/11/2001
+-- This is very primitive indeed. The functions should work on
+-- token lists and not on strings. AR 5/12/2002
+
+
+formatAsTextLit :: String -> String
+formatAsTextLit = formatAsText . unwords . map unStringLit . words 
+--- hope that there will be deforestation...
+
+formatAsCodeLit :: String -> String
+formatAsCodeLit = formatAsCode . unwords . map unStringLit . words 
+
+formatAsText :: String -> String
+formatAsText = unwords . format . cap . words where
+  format ws = case ws of
+    w : c : ww | major c -> (w ++ c)      : format (cap ww)
+    w : c : ww | minor c -> (w ++ c)      : format ww
+    c     : ww | para  c -> "\n\n"        : format ww
+    w     : ww           -> w             : format ww
+    [] -> []
+  cap (p:(c:cs):ww) | para p = p : (toUpper c : cs) : ww
+  cap ((c:cs):ww) = (toUpper c : cs) : ww
+  cap [] = []
+  major = flip elem (map singleton ".!?") 
+  minor = flip elem (map singleton ",:;")
+  para  = (=="<p>") 
+
+formatAsCode :: String -> String
+formatAsCode = unwords . format . words where
+  format ws = case ws of
+    p : w : ww | parB p -> format ((p ++ w') : ww') where (w':ww') = format (w:ww)
+    w : p : ww | par  p -> format ((w ++ p') : ww') where (p':ww') = format (p:ww)
+    w     : ww           -> w        : format ww
+    [] -> []
+  parB = flip elem (map singleton "([{")
+  parE = flip elem (map singleton "}])")
+  par t = parB t || parE t
+
+performBinds :: String -> String
+performBinds = unwords . format . words where
+  format ws = case ws of
+    w : "&+" : u : ws -> format ((w ++ u) : ws)
+    w : ws            -> w : format ws
+    []                -> []
+
+unStringLit :: String -> String
+unStringLit s = case s of
+  c : cs | strlim c && strlim (last cs) -> init cs
+  _ -> s
+ where
+   strlim = (=='\'')