From 6416a799c90c30812fdddc7734cbb63835befcf1 Mon Sep 17 00:00:00 2001
From: Stephen Williams <steve@icarus.com>
Date: Wed, 28 Nov 2007 18:05:32 -0800
Subject: [PATCH] Identifers include _ and $ characters.

---
 vpi/sdf_lexor.lex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vpi/sdf_lexor.lex b/vpi/sdf_lexor.lex
index 5e85bbc7a..fe11a8343 100644
--- a/vpi/sdf_lexor.lex
+++ b/vpi/sdf_lexor.lex
@@ -65,7 +65,7 @@ static int yywrap(void)
       return REAL_NUMBER;
 }
 
-[a-zA-Z][a-zA-Z0-9]* {
+[a-zA-Z_][a-zA-Z0-9$_]* {
       return lookup_keyword(yytext);
 }