diff options
| author | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:54:35 +0000 |
|---|---|---|
| committer | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:54:35 +0000 |
| commit | e9e80fc389365e24d4300d7d5390c7d833a96c50 (patch) | |
| tree | f0b58473adaa670bd8fc52ada419d8cad470ee03 /examples/systemS/Precedence.gf | |
| parent | b96b36f43de3e2f8b58d5f539daa6f6d47f25870 (diff) | |
changed names of resource-1.3; added a note on homepage on release
Diffstat (limited to 'examples/systemS/Precedence.gf')
| -rw-r--r-- | examples/systemS/Precedence.gf | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/examples/systemS/Precedence.gf b/examples/systemS/Precedence.gf deleted file mode 100644 index 7defd19aa..000000000 --- a/examples/systemS/Precedence.gf +++ /dev/null @@ -1,42 +0,0 @@ -resource Precedence = open (Predef = Predef) in { - - param - PAssoc = PN | PL | PR ; - - oper - Prec : PType = Predef.Ints 4 ; - PrecExp : Type = {s : Str ; p : Prec ; a : PAssoc} ; - - mkPrec : Prec -> PAssoc -> Str -> PrecExp = \p,a,f -> - {s = f ; p = p ; a = a} ; - - usePrec : PrecExp -> Prec -> Str = \x,p -> - case <<x.p,p> : Prec * Prec> of { - <3,4> | <2,3> | <2,4> => paren x.s ; - <1,1> | <1,0> | <0,0> => x.s ; - <1,_> | <0,_> => paren x.s ; - _ => x.s - } ; - - useTop : PrecExp -> Str = \e -> usePrec e 0 ; - - constant : Str -> PrecExp = mkPrec 4 PN ; - - infixN : Prec -> Str -> (_,_ : PrecExp) -> PrecExp = \p,f,x,y -> - mkPrec p PN (usePrec x (nextPrec p) ++ f ++ usePrec y (nextPrec p)) ; - infixL : Prec -> Str -> (_,_ : PrecExp) -> PrecExp = \p,f,x,y -> - mkPrec p PL (usePrec x p ++ f ++ usePrec y (nextPrec p)) ; - infixR : Prec -> Str -> (_,_ : PrecExp) -> PrecExp = \p,f,x,y -> - mkPrec p PR (usePrec x (nextPrec p) ++ f ++ usePrec y p) ; - - prefixR : Prec -> Str -> PrecExp -> PrecExp = \p,f,x -> - mkPrec p PR (f ++ usePrec x p) ; - - nextPrec : Prec -> Prec = \p -> case <p : Prec> of { - 4 => 4 ; - n => Predef.plus n 1 - } ; - - paren : Str -> Str = \s -> "(" ++ s ++ ")" ; - -} |
