Passing a Nokogiri::XML::NodeSet to #apply_to Segfaults

[gunn]

This ruby:

require "nokogiri"

xsl = Nokogiri::XSLT('<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"></xsl:stylesheet>')
xsl.apply_to(Nokogiri::HTML("").css("body"))

This result:

/Users/arthur/.rvm/gems/ruby-1.9.2-p0/gems/nokogiri-1.4.4/lib/nokogiri/xslt/stylesheet.rb:21: [BUG] Segmentation fault
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.4.0]

-- control frame ----------
c:0005 p:---- s:0019 b:0019 l:000018 d:000018 CFUNC  :transform
c:0004 p:0020 s:0014 b:0013 l:000012 d:000012 METHOD /Users/arthur/.rvm/gems/ruby-1.9.2-p0/gems/nokogiri-1.4.4/lib/nokogiri/xslt/stylesheet.rb:21
c:0003 p:0067 s:0008 b:0007 l:001598 d:001130 EVAL   untitled:4
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:001598 d:001598 TOP   
---------------------------
-- Ruby level backtrace information ----------------------------------------
untitled:4:in `<main>'
/Users/arthur/.rvm/gems/ruby-1.9.2-p0/gems/nokogiri-1.4.4/lib/nokogiri/xslt/stylesheet.rb:21:in `apply_to'
/Users/arthur/.rvm/gems/ruby-1.9.2-p0/gems/nokogiri-1.4.4/lib/nokogiri/xslt/stylesheet.rb:21:in `transform'

-- C level backtrace information -------------------------------------------

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Tested on ruby 1.9.2 with both nokokiri 1.4.4 and 1.5.0.beta.4

[flavorjones]

I hesitate to even ask, but what would do you expect the result to be? Application to the serialized form of the nodeset?

[gunn]

@flavorjones: well to not segfault for a start. Even if no one should ever want to do this, the segfault may point to a bigger underlying bug.

What I was trying to do was to get a subset of my html (stuff within the body tag) styled nicely.
To go from:

"<div><p>one</p><p>two</p></div>"

to:

"<div>
  <p>one</p>
  <p>two</p>
</div>"