Make parentheses no longer explicit in the AST (Beta).

The output module adds parentheses where necessary, depending on the evaluation order in the tree. Or that's the idea. Prone to bugs, let's see how it bodes.

lslopt/lslparse.py

@@ -798,8 +798,6 @@ class parser(object):
 
         if tok0 == '(':
             # Parenthesized expression or typecast
-            # TODO: Don't include parentheses in the tree, defer to the output
-            #       module to add them where necessary.
 
             self.NextToken()
             if self.tok[0] != 'TYPE':
@@ -807,7 +805,7 @@ class parser(object):
                 expr = self.Parse_expression()
                 self.expect(')')
                 self.NextToken()
-                return {'nt':'()', 't':expr['t'], 'ch':[expr]}
+                return expr
 
             # Typecast
             typ = self.tok[1]
@@ -825,7 +823,6 @@ class parser(object):
                     expr = self.Parse_expression()
                     self.expect(')')
                     self.NextToken()
-                    expr = {'nt':'()', 't':expr['t'], 'ch':[expr]}
                 else:
                     expr = self.Parse_unary_postfix_expression(AllowAssignment = False)
             basetype = expr['t']