From c36e976c00bac90fd01fe12f6c9bc632e3b209b7 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Wed, 10 Mar 2010 16:43:15 -0500
Subject: epub, html: make robust where missing param values

---
 lib/sisu/v2/epub_format.rb | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'lib/sisu/v2/epub_format.rb')

diff --git a/lib/sisu/v2/epub_format.rb b/lib/sisu/v2/epub_format.rb
index 5599a435..498912a3 100644
--- a/lib/sisu/v2/epub_format.rb
+++ b/lib/sisu/v2/epub_format.rb
@@ -1024,17 +1024,28 @@ WOK
 WOK
       end
       def metadata #metadata dc
-        illustrator=if defined? @md.creator.illustrator and @md.creator.illustrator =~/\S+/
+        author=if defined? @md.creator.author \
+        and @md.creator.author =~/\S+/
+          %{\n    <dc:creator opf:file-as="#{@md.creator.author}" opf:role="aut">#{@md.creator.author}</dc:creator>}
+        else ''
+        end
+        illustrator=if defined? @md.creator.illustrator \
+        and @md.creator.illustrator =~/\S+/
           %{\n    <dc:creator opf:file-as="#{@md.creator.illustrator}" opf:role="ill">#{@md.creator.illustrator}</dc:creator>}
         else ''
         end
+        rights=if defined? @md.rights.all \
+        and @md.rights.all =~/\S+/
+          %{\n    <dc:rights>#{@md.rights.all}</dc:rights>}
+        else ''
+        end
         <<WOK
   <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf">
     <dc:title>#{@md.title.full}</dc:title>
-    <dc:creator opf:file-as="#{@md.creator.author}" opf:role="aut">#{@md.creator.author}</dc:creator>#{illustrator}
+    #{author}#{illustrator}
     <dc:language>en-US</dc:language>
     <dc:identifier id="bookid">...</dc:identifier>
-    <dc:rights>#{@md.rights.all}</dc:rights>
+    #{rights}
     <dc:identifier id="EPB-UUID">urn:uuid:#{@md.dgst[1]}</dc:identifier>
   </metadata>
 WOK
-- 
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