WebSVN – programming – Diff – /school/cs311/proj4/proj4.py

         return self.procD()
     def procD(self):
         print 'procD(%s) ->' % (self.str[self.strpos:])
+        try:
-        # Check if we are a single digit
+            # Check if we are a single digit
-        if self.str[self.strpos] in '0123456789':
+            if self.str[self.strpos] in '0123456789':
-            self.strpos += 1
+                self.strpos += 1
-            return True
+                return True
+        except IndexError: # ran out of input
+            return False
         return False
 if __name__ == '__main__':
     rdp = RecursiveDescentParser()

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