From fd94b98a5c5f7ec819511445bdcf4bbe34338b7b Mon Sep 17 00:00:00 2001
From: Rodrigo Alejandro Melo <rodrigomelo9@gmail.com>
Date: Thu, 9 Feb 2017 23:39:08 -0300
Subject: Added scientific notation supports for integers and floats

Also support was added for real numbers especially thinking in generics.
Files called scientific.vhd and scientific.v were added for test.
---
 src/vhd2vl.l | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/vhd2vl.l')

diff --git a/src/vhd2vl.l b/src/vhd2vl.l
index 661824f..e7419de 100644
--- a/src/vhd2vl.l
+++ b/src/vhd2vl.l
@@ -84,6 +84,7 @@ void getbasedstring(unsigned skip);
 "unsigned" |
 "std_logic_vector" |
 "std_ulogic_vector" { return BITVECT; }
+"real" { return REAL; }
 "downto" { return DOWNTO; }
 "to" { return TO; }
 "type" {return TYPE; }
@@ -148,6 +149,13 @@ void getbasedstring(unsigned skip);
   return NATURAL;
 }
 
+[0-9]+e[0-9]+ |
+[0-9]+\.[0-9]+e[0-9]+ {
+  yylval.txt=malloc(strlen(yytext)+1);
+  strcpy(yylval.txt, yytext);
+  return SCIENTIFIC;
+}
+
 [0-9]+\.[0-9]+ {
   getstring(0);
   return FLOAT;
-- 
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