make MBox::Loader#next return nil once EOF is hit

commit e2aa05a0ceaf03409d5979087d8c50546e53ffe1
parent 55133abad76e8415a078fa0b0749094406f4d08a
Author: William Morgan <wmorgan-sup@masanjin.net>
Date:   Sun, 17 May 2009 11:36:06 -0700

make MBox::Loader#next return nil once EOF is hit

Previously it was raising a debugging exception. This is a better
interface for writing unit tests against.

Diffstat:

lib/sup/mbox/loader.rb

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/sup/mbox/loader.rb b/lib/sup/mbox/loader.rb
@@ -128,7 +128,7 @@ class Loader < Source
         ## 2. at the beginning of an mbox separator (in all other
         ##    cases).
 
-        l = @f.gets or raise "next while at EOF"
+        l = @f.gets or return nil
         if l =~ /^\s*$/ # case 1
           returned_offset = @f.tell
           @f.gets # now we're at a BREAK_RE, so skip past it

sup.git