class RDoc::Parser::C

def find_attr_comment(attr_name)
  if @content =~ %r{((?>/\*.*?\*/\s+))
                 rb_define_attr\((?:\s*(\w+),)?\s*"#{attr_name}"\s*,.*?\)\s*;}xmi
    $1
  elsif @content =~ %r{Document-attr:\s#{attr_name}\s*?\n((?>.*?\*/))}m
    $1
  else
    ''
  end
end