From 957b96c1b5726703e895968d611b915e063abad8 Mon Sep 17 00:00:00 2001
From: David Majda <david@majda.cz>
Date: Wed, 26 Jan 2011 13:52:39 +0100
Subject: [PATCH] Add check for missing parameter of the -e/--export-var
 option.

---
 bin/pegjs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bin/pegjs b/bin/pegjs
index 38d6d6b..20e5e54 100755
--- a/bin/pegjs
+++ b/bin/pegjs
@@ -70,6 +70,9 @@ while (args.length > 0 && isOption(args[0])) {
     case "-e":
     case "--export-var":
       nextArg();
+      if (args.length === 0) {
+        abort("Missing parameter of the -e/--export-var option.");
+      }
       exportVar = args[0];
       break;