From 57dfbe3e52486a418944fe759464f0cd2a20c858 Mon Sep 17 00:00:00 2001
From: Melven Roehrig-Zoellner <Melven.Roehrig-Zoellner@DLR.de>
Date: Sat, 18 Jun 2016 21:56:28 +0200
Subject: [PATCH] Fix grammar of Fortran floating point numbers

Fortran allows to omit zeros behind the decimal point, e.g. 1. for 1.0...
Examples for floating point numbers:
1.0
1.
1e0
---
 src/F2x/grammar/fortran.g | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/F2x/grammar/fortran.g b/src/F2x/grammar/fortran.g
index ba0bb22..5cdacc4 100755
--- a/src/F2x/grammar/fortran.g
+++ b/src/F2x/grammar/fortran.g
@@ -92,7 +92,7 @@ T_DEFINED_OP : '\.[a-zA-Z]+\.' (%unless
 );
 
 T_PERIOD_EXPONENT 
-    : '(\.[0-9]+[EedD][+-]?[0-9]+)|(\.[EedD][+-]?[0-9]+)|(\.[0-9]+)|([0-9]+[eEdD][+-]?[0-9]+)'
+    : '(\.[0-9]*[EedD][+-]?[0-9]+)|(\.[0-9]*)|([eEdD][+-]?[0-9]+)'
     ;
 
 T_HOLLERITH : '$no hollerith'; // shouldn't be recognized