module BetterHtml::BetterErb::RuntimeChecks

def check_attribute_name(type, start, stop, line, column)
  text = @parser.document[start...stop]
  return if @config.partial_attribute_name_pattern.match?(text)
  s = +"Invalid attribute name #{text.inspect} does not match " \
    "regular expression #{@config.partial_attribute_name_pattern.inspect}\n"
  s << build_location(line, column, text.size)
  raise BetterHtml::HtmlError, s
end