From e84204e28c64f60ec6dcb0ec009b77d78a220967 Mon Sep 17 00:00:00 2001
From: josh <josh@45c1a28c-8058-47b2-ae61-ca45b979098e>
Date: Sun, 1 Jun 2008 18:30:57 +0000
Subject: [PATCH] added arithmetic.grammar

git-svn-id: svn://anubis/gvsu@109 45c1a28c-8058-47b2-ae61-ca45b979098e
---
 cs675/bottomup/arithmetic.grammar | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 cs675/bottomup/arithmetic.grammar

diff --git a/cs675/bottomup/arithmetic.grammar b/cs675/bottomup/arithmetic.grammar
new file mode 100644
index 0000000..d156aa2
--- /dev/null
+++ b/cs675/bottomup/arithmetic.grammar
@@ -0,0 +1,29 @@
+
+Package jholtrop.gvsu.cs675.bottomup;
+
+Tokens
+    blank = (' ' | 9 | 10 | 13);
+    number = ['0' .. '9']+ ('.' ['0' .. '9']+)?;
+    plus = '+';
+    minus = '-';
+    multiply = '*';
+    divide = '/';
+    l_par = '(';
+    r_par = ')';
+
+Ignored Tokens
+    blank;
+
+Productions
+    expr =
+        {addition} expr plus term |
+        {subtraction} expr minus term |
+        {term} term;
+
+    term =
+        {multiplication} term multiply factor |
+        {division} term divide factor;
+
+    factor =
+        {number} number |
+        {paren} l_par expr r_par;