diff options
| author | krasimir <krasimir@chalmers.se> | 2009-05-20 21:03:56 +0000 |
|---|---|---|
| committer | krasimir <krasimir@chalmers.se> | 2009-05-20 21:03:56 +0000 |
| commit | 7db4b641ce6abe90dd404459cd5eccb6e67f618c (patch) | |
| tree | f708d2e7ed970d71655b66cac78c8b525b010cd9 /src/PGF/Expr.hs-boot | |
| parent | 401dfc28d62584178c1187c92dece8dd0832dcb4 (diff) | |
refactor the PGF.Expr type and the evaluation of abstract expressions
Diffstat (limited to 'src/PGF/Expr.hs-boot')
| -rw-r--r-- | src/PGF/Expr.hs-boot | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/PGF/Expr.hs-boot b/src/PGF/Expr.hs-boot new file mode 100644 index 000000000..0369be173 --- /dev/null +++ b/src/PGF/Expr.hs-boot @@ -0,0 +1,13 @@ +module PGF.Expr where
+
+import qualified Text.PrettyPrint as PP
+import qualified Text.ParserCombinators.ReadP as RP
+
+data Expr
+
+instance Eq Expr
+instance Ord Expr
+
+pFactor :: RP.ReadP Expr
+
+ppExpr :: Int -> Expr -> PP.Doc
|