From 2e3c195280c23bae631508a64428c0f19f21b298 Mon Sep 17 00:00:00 2001
From: Hironori Kitagawa <h_kitagawa2001@yahoo.co.jp>
Date: Wed, 3 Sep 2014 20:38:22 +0900
Subject: [PATCH] ltj-ruby.lua: cache_handle can be nil

---
 src/ltj-ruby.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ltj-ruby.lua b/src/ltj-ruby.lua
index 4007fba..145f332 100644
--- a/src/ltj-ruby.lua
+++ b/src/ltj-ruby.lua
@@ -571,7 +571,7 @@ local post_lown
 do
    local function write_aux(wv, num)
       local id = has_attr(wv, attr_ruby_id)
-      if id>0 then
+      if id>0 and cache_handle then
 	 cache_handle:write(
 		    'luatexja.ruby.old_break_info['
 		       .. tostring(id) .. ']=' .. num
-- 
2.11.0