function counter_value($id = self::DEFAULT_COUNTER, $type = "decimal")
{
$type = mb_strtolower($type);
if (!isset($this->_counters[$id])) {
$this->_counters[$id] = 0;
}
$value = $this->_counters[$id];
switch ($type) {
default:
case "decimal":
return $value;
case "decimal-leading-zero":
return str_pad($value, 2, "0", STR_PAD_LEFT);
case "lower-roman":
return Helpers::dec2roman($value);
case "upper-roman":
return mb_strtoupper(Helpers::dec2roman($value));
case "lower-latin":
case "lower-alpha":
return chr($value % 26 + ord('a') - 1);
case "upper-latin":
case "upper-alpha":
return chr($value % 26 + ord('A') - 1);
case "lower-greek":
return Helpers::unichr($value + 944);
case "upper-greek":
return Helpers::unichr($value + 912);
}
}
/**
* @param integer $n
* @param string $type
* @param integer $pad
*
* @return string
*/
private function make_counter($n, $type, $pad = null)
{
$n = intval($n);
$text = "";
$uppercase = false;
switch ($type) {
case "decimal-leading-zero":
case "decimal":
case "1":
if ($pad) {
$text = str_pad($n, $pad, "0", STR_PAD_LEFT);
} else {
$text = $n;
}
break;
case "upper-alpha":
case "upper-latin":
case "A":
$uppercase = true;
case "lower-alpha":
case "lower-latin":
case "a":
$text = chr($n % 26 + ord('a') - 1);
break;
case "upper-roman":
case "I":
$uppercase = true;
case "lower-roman":
case "i":
$text = Helpers::dec2roman($n);
break;
case "lower-greek":
$text = Helpers::unichr($n + 944);
break;
}
if ($uppercase) {
$text = strtoupper($text);
}
return "{$text}.";
}
/**
* Parses a CSS string containing quotes and escaped hex characters
*
* @param $string string The CSS string to parse
* @param $single_trim
* @return string
*/
protected function _parse_string($string, $single_trim = false)
{
if ($single_trim) {
$string = preg_replace('/^[\\"\']/', "", $string);
$string = preg_replace('/[\\"\']$/', "", $string);
} else {
$string = trim($string, "'\"");
}
$string = str_replace(array("\\\n", '\\"', "\\'"), array("", '"', "'"), $string);
// Convert escaped hex characters into ascii characters (e.g. \A => newline)
$string = preg_replace_callback("/\\\\([0-9a-fA-F]{0,6})/", function ($matches) {
return \Dompdf\Helpers::unichr(hexdec($matches[1]));
}, $string);
return $string;
}