From ea042911e5062d7cecf0ead734c039cae5265b6c Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Thu, 2 Aug 2012 09:37:58 +1000
Subject: Generates a numbered list of theorems in an article file

---
 ListThm.hs | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 ListThm.hs

diff --git a/ListThm.hs b/ListThm.hs
new file mode 100644
index 0000000..e61aaf9
--- /dev/null
+++ b/ListThm.hs
@@ -0,0 +1,43 @@
+import System( getArgs )
+import Text.Printf
+import Parse
+import ProofGraph
+import WriteProof
+import Semantic
+import Stack
+
+import Data.Maybe
+import Data.Graph.Inductive.Graph( Node, LNode, Edge, LEdge )
+import qualified Data.Graph.Inductive.Graph as Graph
+
+
+
+fst4 :: (a,b,c,d) -> a
+fst4 (a,_,_,_) = a
+
+
+
+toThms :: PGraph -> [Node] -> [String]
+toThms graph nodeList =
+    let hyp = (\g n -> let edge = filter (\x -> (fst . thd3 $ x) == 2) (Graph.out g n)
+                           node = snd3 . head $ edge
+                       in write g node)
+
+        con = (\g n -> let edge = filter (\x -> (fst . thd3 $ x) == 1) (Graph.out g n)
+                           node = snd3 . head $ edge
+                       in write g node)
+
+        f = (\x -> (show . fst $ x) ++ ".  [" ++ show ((fst4 . fromJust $ (eval (hyp graph (snd x)))) `at` 0) ++ 
+                   "] |- " ++ show ((fst4 . fromJust $ (eval (con graph (snd x)))) `at` 0))
+
+    in map f (zip [1..] nodeList)
+
+
+
+main = do
+    args <- getArgs
+    list <- getLines $ head args
+    let graph = doGraphGen (map (stripReturn) list)
+        initList = filter (\x -> Graph.indeg graph x == 0) (Graph.nodes graph)
+        theorems = toThms graph initList
+    output theorems
-- 
cgit