module Kramdown::Parser::Html::Parser

def parse_html_attributes(str, line = nil)

If the optional +line+ parameter is supplied, it is used in warning messages.

Parses the given string for HTML attributes and returns the resulting hash. 
def parse_html_attributes(str, line = nil)
  attrs = Utils::OrderedHash.new
  str.scan(HTML_ATTRIBUTE_RE).each do |attr, sep, val|
    attr.downcase!
    if attrs.has_key?(attr)
      warning("Duplicate HTML attribute '#{attr}' on line #{line || '?'} - overwriting previous one")
    end
    attrs[attr] = val || ""
  end
  attrs
end