class REXML::Formatters::Default

def initialize( ie_hack=false )

tag, so that IE's bad XML parser doesn't choke.
If set to true, then inserts whitespace before the close of an empty
ie_hack::

set.
Prints out the XML document with no formatting -- except if ie_hack is 
def initialize( ie_hack=false )
  @ie_hack = ie_hack
end

def write( node, output )

change the output encoding.
A class implementing <<. Pass in an Output object to
output::
The node to write
node::

Writes the node to some output. 
def write( node, output )
  case node
  when Document
    if node.xml_decl.encoding != 'UTF-8' && !output.kind_of?(Output)
      output = Output.new( output, node.xml_decl.encoding )
    end
    write_document( node, output )
  when Element
    write_element( node, output )
  when Declaration, ElementDecl, NotationDecl, ExternalEntity, Entity,
       Attribute, AttlistDecl
    node.write( output,-1 )
  when Instruction
    write_instruction( node, output )
  when DocType, XMLDecl
    node.write( output )
  when Comment
    write_comment( node, output )
  when CData
    write_cdata( node, output )
  when Text
    write_text( node, output )
  else
    raise Exception.new("XML FORMATTING ERROR")
  end
end

def write_cdata( node, output ) 

def write_cdata( node, output )
  output << CData::START
  output << node.to_s
  output << CData::STOP
end

def write_comment( node, output ) 

def write_comment( node, output )
  output << Comment::START
  output << node.to_s
  output << Comment::STOP
end

def write_document( node, output ) 

def write_document( node, output )
  node.children.each { |child| write( child, output ) }
end

def write_element( node, output ) 

def write_element( node, output )
  output << "<#{node.expanded_name}"
  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?
  if node.children.empty?
    output << " " if @ie_hack
    output << "/"
  else
    output << ">"
    node.children.each { |child|
      write( child, output )
    }
    output << "</#{node.expanded_name}"
  end
  output << ">"
end

def write_instruction( node, output ) 

def write_instruction( node, output )
  output << Instruction::START
  output << node.target
  content = node.content
  if content
    output << ' '
    output << content
  end
  output << Instruction::STOP
end

def write_text( node, output ) 

def write_text( node, output )
  output << node.to_s()
end