From 31bf84122b21efb444aa8d055472e166ffb90783 Mon Sep 17 00:00:00 2001
From: aarne <aarne@cs.chalmers.se>
Date: Tue, 20 May 2008 11:47:44 +0000
Subject: moved all old source code to src-2.9 ; src will be for GF 3
 development

---
 src-2.9/GF/Canon/PrExp.hs | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 src-2.9/GF/Canon/PrExp.hs

(limited to 'src-2.9/GF/Canon/PrExp.hs')

diff --git a/src-2.9/GF/Canon/PrExp.hs b/src-2.9/GF/Canon/PrExp.hs
new file mode 100644
index 000000000..6202a760e
--- /dev/null
+++ b/src-2.9/GF/Canon/PrExp.hs
@@ -0,0 +1,46 @@
+----------------------------------------------------------------------
+-- |
+-- Module      : PrExp
+-- Maintainer  : AR
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/04/21 16:21:28 $ 
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.5 $
+--
+-- print trees without qualifications
+-----------------------------------------------------------------------------
+
+module GF.Canon.PrExp (prExp) where
+
+import GF.Canon.AbsGFC
+import GF.Canon.GFC
+
+import GF.Data.Operations
+
+prExp :: Exp -> String
+prExp e = case e of
+  EApp f a   -> pr1 f +++ pr2 a
+  EAbsR x b  -> "\\" ++ prtt x +++ "->" +++ prExp b
+  EAbs x _ b -> prExp $ EAbsR x b
+  EProd x a b -> "(\\" ++ prtt x +++ ":" +++ prExp a ++ ")" +++ "->" +++ prExp b
+  EAtomR a   -> prAtom a
+  EAtom a _  -> prAtom a
+  _ -> prtt e
+ where
+   pr1 e = case e of
+     EAbsR _ _   -> prParenth $ prExp e
+     EAbs _ _ _  -> prParenth $ prExp e
+     EProd _ _ _ -> prParenth $ prExp e
+     _ -> prExp e
+   pr2 e = case e of
+     EApp _ _ -> prParenth $ prExp e
+     _ -> pr1 e
+
+prAtom a = case a of
+  AC c -> prCIdent c
+  AD c -> prCIdent c
+  _ -> prtt a
+
+prCIdent (CIQ _ c) = prtt c
-- 
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