Finally figured out the proper incantation to make Nokogiri stop addi…

…ng newlines after certain elements.

Fixes #103.

HISTORY.md

@@ -41,6 +41,14 @@ increment.
 
 * The `:output_encoding` config has been removed. Output is now always UTF-8.
 
+### Other changes
+
+* Fixed: Nokogiri has been smacked and instructed to stop adding newlines after
+  certain elements, because if people wanted newlines there they'd have put them
+  there, dammit. [#103][103]
+
+[103]:https://github.com/rgrove/sanitize/issues/103
+
 
 Version 2.2.0 (git)
 -------------------

lib/sanitize.rb

@@ -119,9 +119,14 @@ def node!(node)
   private
 
   def to_html(node)
+    so = Nokogiri::XML::Node::SaveOptions
+
+    # Serialize to HTML without any formatting to prevent Nokogiri from adding
+    # newlines after certain tags.
     node.to_html(
-      :encoding => 'utf-8',
-      :indent   => 0
+      :encoding  => 'utf-8',
+      :indent    => 0,
+      :save_with => so::NO_DECLARATION | so::NO_EMPTY_TAGS | so::AS_HTML
     )
   end