From 46ef84aed94360083e4f6bf7a38c1408f13d091a Mon Sep 17 00:00:00 2001
From: Steve Kemp <steve@steve.org.uk>
Date: Fri, 23 Nov 2012 20:52:56 +0000
Subject:   Ensure that parse_line is given a line.

---
 lib/custodian/parser.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/custodian/parser.rb b/lib/custodian/parser.rb
index d8b90a1..b80c498 100644
--- a/lib/custodian/parser.rb
+++ b/lib/custodian/parser.rb
@@ -252,6 +252,8 @@ module Custodian
     #
     def parse_line( line )
 
+      raise ArgumentError, "Line is not a string: #{line}" unless( line.kind_of? String )
+
       line.chomp! if ( !line.nil? )
 
       #
@@ -341,10 +343,11 @@ module Custodian
       # If we're given a string then split it on newline
       #
       if ( text.kind_of?( String )  )
-        a = text.split( /[\r\n]/ )
+        a    = text.split( /[\r\n]/ )
         text = a
       end
 
+      ret = nil
 
       #
       # Split on newline
@@ -369,6 +372,8 @@ module Custodian
           end
         end
       end
+
+      ret
     end
 
 
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