cleaned up gfcc ; added gfcc script

examples/gfcc/ImperEng.gf

@@ -1,71 +0,0 @@
--- # -path=.:prelude
---# -path=.:../../lib/prelude
-
--- Toy English phrasing of C programs. Intended use is with 
--- speech synthesis. Printed code should use HTML formatting.
--- AR 5/10/2005.
-
-concrete ImperEng of Imper = open Prelude, ResImperEng in {
-  flags lexer=textvars ; unlexer=text ; startcat=Program ;
-
-  lincat
-    Rec = {s,s2,s3 : Str} ;
-
-  lin
-    Empty = ss [] ;
-    FunctNil val stm cont = ss (
-      ["The function"] ++ cont.$0 ++ 
-      "returns" ++ indef ++ val.s ++ "." ++
-      ["It is defined as follows :"] ++
-      stm.s ++
-      PARA ++ 
-      cont.s) ;
-    Funct args val rec = ss (
-      ["The function"] ++ rec.$0 ++ 
-      "takes" ++ rec.s2 ++ 
-      "and" ++ "returns" ++ indef ++ val.s ++ "." ++
-      ["It is defined as follows:"] ++
-      rec.s ++ 
-      PARA ++
-      rec.s3) ;
-
-    RecOne typ stm prg = stm ** {
-      s2 = indef ++ typ.s ++ stm.$0 ;
-      s3 = prg.s
-      } ;
-    RecCons typ _ body prg = {
-      s  = body.s ; 
-      s2 = indef ++ typ.s ++ body.$0 ++ "and" ++ body.s2 ;
-      s3 = prg.s
-      } ;
-
-    Decl  typ cont = continues ("let" ++ cont.$0 ++ "be" ++ indef ++ typ.s) cont ;
-    Assign _ x exp = continues ("set" ++ x.s ++ "to" ++ exp.s) ;
-    While exp loop = continues (["if"] ++ exp.s ++ 
-                                [", do the following :"] ++ loop.s ++ 
-       ["test the condition and repeat the loop if the condition holds"]) ;
-    IfElse exp t f = continue  ("if" ++ exp.s ++ [", then"] ++ t.s ++ "Else" ++ f.s) ;
-    Block stm      = continue  (stm.s) ;
-    Printf t e     = continues ("print" ++ e.s) ;
-    Return _ exp   = statement ("return" ++ exp.s) ;
-    Returnv        = statement ["return from the function"] ;
-    End            = ss [] ;
- 
-    EVar  _ x  = constant x.s ;
-    EInt    n  = constant n.s ;
-    EFloat a b = constant (a.s ++ "." ++ b.s) ;
-    EMul _ _   = prefix "product" ;
-    EAdd _ _   = prefix "sum" ;
-    ESub _ _ x y = ss (["the subtraction of"] ++ y.s ++ "from" ++  x.s) ;
-    ELt _ _    = comparison "smaller" ;
-
-    EAppNil val f = constant f.s ;
-    EApp args val f exps = constant (f.s ++ ["applied to"] ++ exps.s) ;
-
-    TInt    = {s = "integer"} ; 
-    TFloat  = {s = "float"} ;
-    NilTyp  = ss [] ;
-    ConsTyp = cc2 ;
-    OneExp _ e = e ;
-    ConsExp _ _ e es = ss (e.s ++ "and" ++ es.s) ;
-}

examples/gfcc/JVM.hs

@@ -1,20 +0,0 @@
-module JVM where
-
-mkJVM :: String -> String
-mkJVM = unlines . reverse . fst . foldl trans ([],([],0)) . lines where
-  trans (code,(env,v)) s = case words s of
-    ".method":f:ns -> ((".method " ++ f ++ concat ns):code,([],0))
-    "alloc":t:x:_  -> (code, ((x,v):env, v + size t))
-    ".limit":"locals":ns -> chCode (".limit locals " ++ show (length ns - 1))
-    t:"_load" :x:_ -> chCode (t ++ "load "  ++ look x) 
-    t:"_store":x:_ -> chCode (t ++ "store " ++ look x)
-    t:"_return":_  -> chCode (t ++ "return")
-    "goto":ns      -> chCode ("goto " ++ concat ns)
-    "ifzero":ns    -> chCode ("ifzero " ++ concat ns) 
-    _ ->   chCode s
-   where
-     chCode c = (c:code,(env,v))
-     look x = maybe (x ++ show env) show $ lookup x env
-     size t = case t of
-       "d" -> 2
-       _ -> 1

examples/gfcc/ResImperEng.gf

@@ -1,16 +0,0 @@
-resource ResImperEng = open Predef, Prelude in {
-
-  oper
-    indef = pre {"a" ; 
-                  "an" / strs {"a" ; "e" ; "i" ; "o" ; "A" ; "E" ; "I" ; "O" }} ;
-
-    constant : Str -> SS  = ss ;
-    prefix   : Str -> SS -> SS -> SS = \f,x,y -> 
-      ss ("the" ++ f ++ "of" ++ x.s ++ "and" ++ y.s) ;
-    comparison : Str -> SS -> SS -> SS = \f,x,y -> 
-      ss (x.s ++ "is" ++ f ++ "than" ++ y.s) ;
-    continues : Str -> SS -> SS = \s,t -> ss (s ++ "." ++ t.s) ; 
-    continue  : Str -> SS -> SS = \s,t -> ss (s ++        t.s) ; 
-    statement : Str -> SS       = \s   -> ss (s ++ "."); 
-
-}

examples/gfcc/gfcc

@@ -0,0 +1,2 @@
+echo "rf -file=$1 | ps -lexcode | p | pt -number=1 | l -lang=ImperJVM | wf -file=tmp.gfcc" | gf Imper.pgf
+runghc CleanJVM tmp.gfcc $1