From 69c8e6a438eb40112c9163e72af9e7a7c716cb1c Mon Sep 17 00:00:00 2001
From: Elijah Perrault <elijah@starcoder.info>
Date: Wed, 2 Feb 2011 12:09:25 -0700
Subject: [PATCH] Check for at least one parameter.

---
 modules/Calc.pm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/Calc.pm b/modules/Calc.pm
index c60762a..3778d37 100644
--- a/modules/Calc.pm
+++ b/modules/Calc.pm
@@ -52,7 +52,11 @@ sub calc
 	my $json = JSON->new();    
 	# Put together the call to the Google Calculator API. 
 	my @args = @{ $data{args} };
-	my $expr = join(' ', @args);
+    if (!defined $args[0]) {
+        notice($data{svr}, $data{nick}, trans("Not enough parameters").".");
+        return 0;
+    }
+    my $expr = join(' ', @args);
 	my $url = "http://www.google.com/ig/calculator?q=".uri_escape($expr);
 	# Get the response via HTTP.
 	my $response = $ua->get($url);