From 3a8b431a5b07baa98ea9d5d6d1a3512425035049 Mon Sep 17 00:00:00 2001
From: andy <andy>
Date: Tue, 22 Mar 2005 20:28:47 +0000
Subject: [PATCH] Don't parse a single "e" or "E" as a numerical zero.  You
 need a numerical prefix to use the 1.0e12 notation, "e" alone is not enough.

---
 simgear/nasal/string.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simgear/nasal/string.c b/simgear/nasal/string.c
index 9da446f4..69aa473a 100644
--- a/simgear/nasal/string.c
+++ b/simgear/nasal/string.c
@@ -199,6 +199,9 @@ static int tonum(unsigned char* s, int len, double* result)
         i += fraclen;
     }
 
+    // Nothing so far?  Then the parse failed.
+    if(i == 0) return 0;
+
     // Read the exponent, if any
     if(i < len && (s[i] == 'e' || s[i] == 'E'))
         i = readsigned(s, len, i+1, &exp);
-- 
2.39.5