class Regexp

# File htree/regexp-util.rb, line 2
def disable_capture
  re = ''
  charclass_p = false
  self.source.scan(/\.|[^\\(\[\]]+|\(\?|\(|\[|\]/m) {|s|
    case s
    when '('
      if charclass_p
        re << '('
      else
        re << '(?:'
      end
    when '['
      charclass_p = true
      re << s
    when ']'
      charclass_p = false
      re << s
    else
      re << s
    end
  }
  if re.respond_to? :force_encoding
    re.force_encoding(self.encoding)
    Regexp.new(re, self.options)
  else
    Regexp.new(re, self.options, self.kcode)
  end
end