Node#swap crashing bug

[flavorjones]

From the mailing list:

f = Nokogiri::XML.fragment( "<div class='section'><span class='greeting'></span></div>" )
f.css( 'div' ).each do | node |
  node.swap( '<h1>hi</h1>' )
end

reproduced with

ruby: 
  engine: mri
  version: 1.8.7
  platform: x86_64-linux
libxml: 
  loaded: 2.7.6
  binding: extension
  compiled: 2.7.6
nokogiri: 1.4.3.1

[flavorjones]

This is actually a bug in calling Node#fragment from a node in a fragment. Repro:

Nokogiri::XML.fragment("<div></div>").children.first.fragment("<h1></h1>")

[flavorjones]

Wow, nutty problem. Looks like a bug in libxml2. Working on getting a repro case in C for submission to libxml2.

[flavorjones]

I've reproduced this bug in C code calling libxml2. Will submit bug, and a Nokogiri workaround is imminent.

[flavorjones]

test and workaround for libxml in-context parsing bug. closed by cedc5d8.

[flavorjones]

opened a bug with libxml2: https://bugzilla.gnome.org/show_bug.cgi?id=634005