From ac591cc542f039af8f66567439fbb0aee3d93963 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Mon, 22 Mar 2010 13:20:56 -0400
Subject: Add built-in float constants.

---
 dimension/common.rules | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'dimension/common.rules')

diff --git a/dimension/common.rules b/dimension/common.rules
index c8e0767..fea7794 100644
--- a/dimension/common.rules
+++ b/dimension/common.rules
@@ -498,6 +498,27 @@ ARITH_EXPR: FLOAT_LITERAL
           | "vlength" "(" ARITH_EXPR ")" {
             $$ = dmnsn_new_astnode1(DMNSN_AST_VLENGTH, @$, $3);
           }
+          | "pi" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_PI, @$);
+          }
+          | "true" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_TRUE, @$);
+          }
+          | "on" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_TRUE, @$);
+          }
+          | "yes" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_TRUE, @$);
+          }
+          | "false" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_FALSE, @$);
+          }
+          | "off" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_FALSE, @$);
+          }
+          | "no" {
+            $$ = dmnsn_new_astnode(DMNSN_AST_FALSE, @$);
+          }
           | IDENTIFIER
           | "x" { $$ = dmnsn_new_ast_ivector(1, 0, 0, 0, 0); }
           | "u" { $$ = dmnsn_new_ast_ivector(1, 0, 0, 0, 0); }
-- 
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