class Builder::XmlBase

the output stream.
characters aren't converted to character entities in
encoding:: When encoding and $KCODE are set to 'utf-8'
initial:: Level of initial indentation.
indentation and no line breaks).
indent:: Number of spaces used for indentation (0 implies no
<<.
out:: Object receiving the markup. +out+ must respond to

Create an XML markup builder.

def initialize(indent=0, initial=0, encoding='utf-8')
  @indent = indent
  @level  = initial
  @encoding = encoding.downcase
end