* lib/rexml/formatters/default.rb (write_attribute): fix an

exception when printing a document when duplicate namespaced
  attributes exist. Thanks, Alexey Froloff [ruby-core:2389]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sun Nov 29 06:37:53 2009  Aaron Patterson <tenderlove@ruby-lang.org>
+
+	* lib/rexml/formatters/default.rb (write_attribute): fix an
+	  exception when printing a document when duplicate namespaced
+	  attributes exist. Thanks, Alexey Froloff [ruby-core:2389]
+
 Sat Nov 28 09:05:53 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* vm_eval.c (check_funcall_failed): should rescue user raised

lib/rexml/formatters/default.rb

@@ -63,7 +63,9 @@ module REXML
       def write_element( node, output )
         output << "<#{node.expanded_name}"
 
-        node.attributes.to_a.sort_by {|attr| attr.name}.each do |attr|
+        node.attributes.to_a.map { |a|
+          Hash === a ? a.values : a
+        }.flatten.sort_by {|attr| attr.name}.each do |attr|
           output << " "
           attr.write( output )
         end unless node.attributes.empty?

test/rexml/test_document.rb

@@ -2,6 +2,25 @@ require "rexml/document"
 require "test/unit"
 
 class REXML::TestDocument < Test::Unit::TestCase
+  def test_version_attributes_to_s
+    doc = REXML::Document.new(<<-eoxml)
+      <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+      <svg  id="svg2"
+            xmlns:sodipodi="foo"
+            xmlns:inkscape="bar"
+            sodipodi:version="0.32"
+            inkscape:version="0.44.1"
+      >
+      </svg>
+    eoxml
+
+    string = doc.to_s
+    assert_match('xmlns:sodipodi', string)
+    assert_match('xmlns:inkscape', string)
+    assert_match('sodipodi:version', string)
+    assert_match('inkscape:version', string)
+  end
+
   def test_new
     doc = REXML::Document.new(<<EOF)
 <?xml version="1.0" encoding="UTF-8"?>