sop / asn1

lib/ASN1/Type/Primitive/VideotexString.php

Indentation +20 added lines, -20 removed lines

@@ -12,26 +12,26 @@
  */
 class VideotexString extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_VIDEOTEX_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_VIDEOTEX_STRING;
+		parent::__construct($string);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _validateString(string $string): bool
-    {
-        // allow everything
-        return true;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _validateString(string $string): bool
+	{
+		// allow everything
+		return true;
+	}
 }

lib/ASN1/Type/Primitive/CharacterString.php

Indentation +11 added lines, -11 removed lines

@@ -9,16 +9,16 @@
 
 class CharacterString extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_CHARACTER_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_CHARACTER_STRING;
+		parent::__construct($string);
+	}
 }

lib/ASN1/Type/Primitive/GraphicString.php

Indentation +20 added lines, -20 removed lines

@@ -12,26 +12,26 @@
  */
 class GraphicString extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_GRAPHIC_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_GRAPHIC_STRING;
+		parent::__construct($string);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _validateString(string $string): bool
-    {
-        // allow everything
-        return true;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _validateString(string $string): bool
+	{
+		// allow everything
+		return true;
+	}
 }

lib/ASN1/Type/Primitive/BMPString.php

Indentation +23 added lines, -23 removed lines

@@ -15,29 +15,29 @@
  */
 class BMPString extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_BMP_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_BMP_STRING;
+		parent::__construct($string);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _validateString(string $string): bool
-    {
-        // UCS-2 has fixed with of 2 octets (16 bits)
-        if (strlen($string) % 2 !== 0) {
-            return false;
-        }
-        return true;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _validateString(string $string): bool
+	{
+		// UCS-2 has fixed with of 2 octets (16 bits)
+		if (strlen($string) % 2 !== 0) {
+			return false;
+		}
+		return true;
+	}
 }

lib/ASN1/Type/Primitive/NullType.php

Indentation +34 added lines, -34 removed lines

@@ -16,41 +16,41 @@
  */
 class NullType extends Element
 {
-    use UniversalClass;
-    use PrimitiveType;
+	use UniversalClass;
+	use PrimitiveType;
     
-    /**
-     * Constructor.
-     */
-    public function __construct()
-    {
-        $this->_typeTag = self::TYPE_NULL;
-    }
+	/**
+	 * Constructor.
+	 */
+	public function __construct()
+	{
+		$this->_typeTag = self::TYPE_NULL;
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        return "";
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		return "";
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     * @return self
-     */
-    protected static function _decodeFromDER(Identifier $identifier, string $data,
-        int &$offset)
-    {
-        $idx = $offset;
-        if (!$identifier->isPrimitive()) {
-            throw new DecodeException("Null value must be primitive.");
-        }
-        // null type has always zero length
-        Length::expectFromDER($data, $idx, 0);
-        $offset = $idx;
-        return new self();
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 * @return self
+	 */
+	protected static function _decodeFromDER(Identifier $identifier, string $data,
+		int &$offset)
+	{
+		$idx = $offset;
+		if (!$identifier->isPrimitive()) {
+			throw new DecodeException("Null value must be primitive.");
+		}
+		// null type has always zero length
+		Length::expectFromDER($data, $idx, 0);
+		$offset = $idx;
+		return new self();
+	}
 }

lib/ASN1/Type/Primitive/UniversalString.php

Indentation +23 added lines, -23 removed lines

@@ -14,29 +14,29 @@
  */
 class UniversalString extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_UNIVERSAL_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_UNIVERSAL_STRING;
+		parent::__construct($string);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _validateString(string $string): bool
-    {
-        // UCS-4 has fixed with of 4 octets (32 bits)
-        if (strlen($string) % 4 != 0) {
-            return false;
-        }
-        return true;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _validateString(string $string): bool
+	{
+		// UCS-4 has fixed with of 4 octets (32 bits)
+		if (strlen($string) % 4 != 0) {
+			return false;
+		}
+		return true;
+	}
 }

lib/ASN1/Type/Primitive/Real.php

Indentation +250 added lines, -250 removed lines

@@ -16,271 +16,271 @@
  */
 class Real extends Element
 {
-    use UniversalClass;
-    use PrimitiveType;
+	use UniversalClass;
+	use PrimitiveType;
     
-    /**
-     * Regex pattern to parse NR3 form number conforming to DER.
-     *
-     * @var string
-     */
-    const NR3_REGEX = '/^(-?)(\d+)?\.E([+\-]?\d+)$/';
+	/**
+	 * Regex pattern to parse NR3 form number conforming to DER.
+	 *
+	 * @var string
+	 */
+	const NR3_REGEX = '/^(-?)(\d+)?\.E([+\-]?\d+)$/';
     
-    /**
-     * Regex pattern to parse PHP exponent number format.
-     *
-     * @link http://php.net/manual/en/language.types.float.php
-     * @var string
-     */
-    const PHP_EXPONENT_DNUM = '/^'. /* @formatter:off */
-        '([+\-]?'. // sign
-        '(?:'.
-            '\d+'. // LNUM
-            '|'.
-            '(?:\d*\.\d+|\d+\.\d*)'. // DNUM
-        '))[eE]'.
-        '([+\-]?\d+)'. // exponent
-    '$/'; /* @formatter:on */
+	/**
+	 * Regex pattern to parse PHP exponent number format.
+	 *
+	 * @link http://php.net/manual/en/language.types.float.php
+	 * @var string
+	 */
+	const PHP_EXPONENT_DNUM = '/^'. /* @formatter:off */
+		'([+\-]?'. // sign
+		'(?:'.
+			'\d+'. // LNUM
+			'|'.
+			'(?:\d*\.\d+|\d+\.\d*)'. // DNUM
+		'))[eE]'.
+		'([+\-]?\d+)'. // exponent
+	'$/'; /* @formatter:on */
     
-    /**
-     * Number zero represented in NR3 form.
-     *
-     * @var string
-     */
-    const NR3_ZERO = ".E+0";
+	/**
+	 * Number zero represented in NR3 form.
+	 *
+	 * @var string
+	 */
+	const NR3_ZERO = ".E+0";
     
-    /**
-     * Number in NR3 form.
-     *
-     * @var string
-     */
-    private $_number;
+	/**
+	 * Number in NR3 form.
+	 *
+	 * @var string
+	 */
+	private $_number;
     
-    /**
-     * Constructor.
-     *
-     * @param string $number Number in NR3 form.
-     */
-    public function __construct(string $number)
-    {
-        $this->_typeTag = self::TYPE_REAL;
-        if (!self::_validateNumber($number)) {
-            throw new \InvalidArgumentException(
-                "'$number' is not a valid NR3 form real.");
-        }
-        $this->_number = $number;
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $number Number in NR3 form.
+	 */
+	public function __construct(string $number)
+	{
+		$this->_typeTag = self::TYPE_REAL;
+		if (!self::_validateNumber($number)) {
+			throw new \InvalidArgumentException(
+				"'$number' is not a valid NR3 form real.");
+		}
+		$this->_number = $number;
+	}
     
-    /**
-     * Initialize from float.
-     *
-     * @param float $number
-     * @return self
-     */
-    public static function fromFloat(float $number)
-    {
-        return new self(self::_decimalToNR3(strval($number)));
-    }
+	/**
+	 * Initialize from float.
+	 *
+	 * @param float $number
+	 * @return self
+	 */
+	public static function fromFloat(float $number)
+	{
+		return new self(self::_decimalToNR3(strval($number)));
+	}
     
-    /**
-     * Get number as a float.
-     *
-     * @return float
-     */
-    public function float(): float
-    {
-        return self::_nr3ToDecimal($this->_number);
-    }
+	/**
+	 * Get number as a float.
+	 *
+	 * @return float
+	 */
+	public function float(): float
+	{
+		return self::_nr3ToDecimal($this->_number);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        /* if the real value is the value zero, there shall be no contents
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		/* if the real value is the value zero, there shall be no contents
          octets in the encoding. (X.690 07-2002, section 8.5.2) */
-        if (self::NR3_ZERO == $this->_number) {
-            return "";
-        }
-        // encode in NR3 decimal encoding
-        $data = chr(0x03) . $this->_number;
-        return $data;
-    }
+		if (self::NR3_ZERO == $this->_number) {
+			return "";
+		}
+		// encode in NR3 decimal encoding
+		$data = chr(0x03) . $this->_number;
+		return $data;
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     * @return self
-     */
-    protected static function _decodeFromDER(Identifier $identifier, string $data,
-        int &$offset)
-    {
-        $idx = $offset;
-        $length = Length::expectFromDER($data, $idx);
-        // if length is zero, value is zero (spec 8.5.2)
-        if (!$length->length()) {
-            $obj = new self(self::NR3_ZERO);
-        } else {
-            $bytes = substr($data, $idx, $length->length());
-            $byte = ord($bytes[0]);
-            if (0x80 & $byte) { // bit 8 = 1
-                $obj = self::_decodeBinaryEncoding($bytes);
-            } else if ($byte >> 6 == 0x00) { // bit 8 = 0, bit 7 = 0
-                $obj = self::_decodeDecimalEncoding($bytes);
-            } else { // bit 8 = 0, bit 7 = 1
-                $obj = self::_decodeSpecialRealValue($bytes);
-            }
-        }
-        $offset = $idx + $length->length();
-        return $obj;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 * @return self
+	 */
+	protected static function _decodeFromDER(Identifier $identifier, string $data,
+		int &$offset)
+	{
+		$idx = $offset;
+		$length = Length::expectFromDER($data, $idx);
+		// if length is zero, value is zero (spec 8.5.2)
+		if (!$length->length()) {
+			$obj = new self(self::NR3_ZERO);
+		} else {
+			$bytes = substr($data, $idx, $length->length());
+			$byte = ord($bytes[0]);
+			if (0x80 & $byte) { // bit 8 = 1
+				$obj = self::_decodeBinaryEncoding($bytes);
+			} else if ($byte >> 6 == 0x00) { // bit 8 = 0, bit 7 = 0
+				$obj = self::_decodeDecimalEncoding($bytes);
+			} else { // bit 8 = 0, bit 7 = 1
+				$obj = self::_decodeSpecialRealValue($bytes);
+			}
+		}
+		$offset = $idx + $length->length();
+		return $obj;
+	}
     
-    /**
-     *
-     * @todo Implement
-     * @param string $data
-     */
-    protected static function _decodeBinaryEncoding(string $data)
-    {
-        throw new \RuntimeException(
-            "Binary encoding of REAL is not implemented.");
-    }
+	/**
+	 *
+	 * @todo Implement
+	 * @param string $data
+	 */
+	protected static function _decodeBinaryEncoding(string $data)
+	{
+		throw new \RuntimeException(
+			"Binary encoding of REAL is not implemented.");
+	}
     
-    /**
-     *
-     * @param string $data
-     * @throws \RuntimeException
-     * @return \ASN1\Type\Primitive\Real
-     */
-    protected static function _decodeDecimalEncoding(string $data): Real
-    {
-        $nr = ord($data[0]) & 0x03;
-        if ($nr != 0x03) {
-            throw new \RuntimeException("Only NR3 form supported.");
-        }
-        $str = substr($data, 1);
-        return new self($str);
-    }
+	/**
+	 *
+	 * @param string $data
+	 * @throws \RuntimeException
+	 * @return \ASN1\Type\Primitive\Real
+	 */
+	protected static function _decodeDecimalEncoding(string $data): Real
+	{
+		$nr = ord($data[0]) & 0x03;
+		if ($nr != 0x03) {
+			throw new \RuntimeException("Only NR3 form supported.");
+		}
+		$str = substr($data, 1);
+		return new self($str);
+	}
     
-    /**
-     *
-     * @todo Implement
-     * @param string $data
-     */
-    protected static function _decodeSpecialRealValue(string $data)
-    {
-        if (strlen($data) != 1) {
-            throw new DecodeException(
-                "SpecialRealValue must have one content octet.");
-        }
-        $byte = ord($data[0]);
-        if ($byte == 0x40) { // positive infinity
-            throw new \RuntimeException("PLUS-INFINITY not supported.");
-        } else if ($byte == 0x41) { // negative infinity
-            throw new \RuntimeException("MINUS-INFINITY not supported.");
-        } else {
-            throw new DecodeException("Invalid SpecialRealValue encoding.");
-        }
-    }
+	/**
+	 *
+	 * @todo Implement
+	 * @param string $data
+	 */
+	protected static function _decodeSpecialRealValue(string $data)
+	{
+		if (strlen($data) != 1) {
+			throw new DecodeException(
+				"SpecialRealValue must have one content octet.");
+		}
+		$byte = ord($data[0]);
+		if ($byte == 0x40) { // positive infinity
+			throw new \RuntimeException("PLUS-INFINITY not supported.");
+		} else if ($byte == 0x41) { // negative infinity
+			throw new \RuntimeException("MINUS-INFINITY not supported.");
+		} else {
+			throw new DecodeException("Invalid SpecialRealValue encoding.");
+		}
+	}
     
-    /**
-     * Convert decimal number string to NR3 form.
-     *
-     * @param string $str
-     * @return string
-     */
-    private static function _decimalToNR3(string $str): string
-    {
-        // if number is in exponent form
-        if (preg_match(self::PHP_EXPONENT_DNUM, $str, $match)) {
-            $parts = explode(".", $match[1]);
-            $m = ltrim($parts[0], "0");
-            $e = intval($match[2]);
-            // if mantissa had decimals
-            if (count($parts) == 2) {
-                $d = rtrim($parts[1], "0");
-                $e -= strlen($d);
-                $m .= $d;
-            }
-        } else {
-            // explode from decimal
-            $parts = explode(".", $str);
-            $m = ltrim($parts[0], "0");
-            // if number had decimals
-            if (count($parts) == 2) {
-                // exponent is negative number of the decimals
-                $e = -strlen($parts[1]);
-                // append decimals to the mantissa
-                $m .= $parts[1];
-            } else {
-                $e = 0;
-            }
-            // shift trailing zeroes from the mantissa to the exponent
-            while (substr($m, -1) === "0") {
-                $e++;
-                $m = substr($m, 0, -1);
-            }
-        }
-        /* if exponent is zero, it must be prefixed with a "+" sign
+	/**
+	 * Convert decimal number string to NR3 form.
+	 *
+	 * @param string $str
+	 * @return string
+	 */
+	private static function _decimalToNR3(string $str): string
+	{
+		// if number is in exponent form
+		if (preg_match(self::PHP_EXPONENT_DNUM, $str, $match)) {
+			$parts = explode(".", $match[1]);
+			$m = ltrim($parts[0], "0");
+			$e = intval($match[2]);
+			// if mantissa had decimals
+			if (count($parts) == 2) {
+				$d = rtrim($parts[1], "0");
+				$e -= strlen($d);
+				$m .= $d;
+			}
+		} else {
+			// explode from decimal
+			$parts = explode(".", $str);
+			$m = ltrim($parts[0], "0");
+			// if number had decimals
+			if (count($parts) == 2) {
+				// exponent is negative number of the decimals
+				$e = -strlen($parts[1]);
+				// append decimals to the mantissa
+				$m .= $parts[1];
+			} else {
+				$e = 0;
+			}
+			// shift trailing zeroes from the mantissa to the exponent
+			while (substr($m, -1) === "0") {
+				$e++;
+				$m = substr($m, 0, -1);
+			}
+		}
+		/* if exponent is zero, it must be prefixed with a "+" sign
          (X.690 07-2002, section 11.3.2.6) */
-        if (0 == $e) {
-            $es = "+";
-        } else {
-            $es = $e < 0 ? "-" : "";
-        }
-        return sprintf("%s.E%s%d", $m, $es, abs($e));
-    }
+		if (0 == $e) {
+			$es = "+";
+		} else {
+			$es = $e < 0 ? "-" : "";
+		}
+		return sprintf("%s.E%s%d", $m, $es, abs($e));
+	}
     
-    /**
-     * Convert NR3 form number to decimal.
-     *
-     * @param string $str
-     * @throws \UnexpectedValueException
-     * @return float
-     */
-    private static function _nr3ToDecimal(string $str): float
-    {
-        if (!preg_match(self::NR3_REGEX, $str, $match)) {
-            throw new \UnexpectedValueException(
-                "'$str' is not a valid NR3 form real.");
-        }
-        $m = $match[2];
-        // if number started with minus sign
-        $inv = $match[1] == "-";
-        $e = intval($match[3]);
-        // positive exponent
-        if ($e > 0) {
-            // pad with trailing zeroes
-            $num = $m . str_repeat("0", $e);
-        } else if ($e < 0) {
-            // pad with leading zeroes
-            if (strlen($m) < abs($e)) {
-                $m = str_repeat("0", abs($e) - strlen($m)) . $m;
-            }
-            // insert decimal point
-            $num = substr($m, 0, $e) . "." . substr($m, $e);
-        } else {
-            $num = empty($m) ? "0" : $m;
-        }
-        // if number is negative
-        if ($inv) {
-            $num = "-$num";
-        }
-        return floatval($num);
-    }
+	/**
+	 * Convert NR3 form number to decimal.
+	 *
+	 * @param string $str
+	 * @throws \UnexpectedValueException
+	 * @return float
+	 */
+	private static function _nr3ToDecimal(string $str): float
+	{
+		if (!preg_match(self::NR3_REGEX, $str, $match)) {
+			throw new \UnexpectedValueException(
+				"'$str' is not a valid NR3 form real.");
+		}
+		$m = $match[2];
+		// if number started with minus sign
+		$inv = $match[1] == "-";
+		$e = intval($match[3]);
+		// positive exponent
+		if ($e > 0) {
+			// pad with trailing zeroes
+			$num = $m . str_repeat("0", $e);
+		} else if ($e < 0) {
+			// pad with leading zeroes
+			if (strlen($m) < abs($e)) {
+				$m = str_repeat("0", abs($e) - strlen($m)) . $m;
+			}
+			// insert decimal point
+			$num = substr($m, 0, $e) . "." . substr($m, $e);
+		} else {
+			$num = empty($m) ? "0" : $m;
+		}
+		// if number is negative
+		if ($inv) {
+			$num = "-$num";
+		}
+		return floatval($num);
+	}
     
-    /**
-     * Test that number is valid for this context.
-     *
-     * @param mixed $num
-     * @return boolean
-     */
-    private static function _validateNumber($num): bool
-    {
-        if (!preg_match(self::NR3_REGEX, $num)) {
-            return false;
-        }
-        return true;
-    }
+	/**
+	 * Test that number is valid for this context.
+	 *
+	 * @param mixed $num
+	 * @return boolean
+	 */
+	private static function _validateNumber($num): bool
+	{
+		if (!preg_match(self::NR3_REGEX, $num)) {
+			return false;
+		}
+		return true;
+	}
 }

lib/ASN1/Type/Primitive/UTF8String.php

Indentation +19 added lines, -19 removed lines

@@ -14,25 +14,25 @@
  */
 class UTF8String extends PrimitiveString
 {
-    use UniversalClass;
+	use UniversalClass;
     
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     */
-    public function __construct(string $string)
-    {
-        $this->_typeTag = self::TYPE_UTF8_STRING;
-        parent::__construct($string);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 */
+	public function __construct(string $string)
+	{
+		$this->_typeTag = self::TYPE_UTF8_STRING;
+		parent::__construct($string);
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _validateString(string $string): bool
-    {
-        return mb_check_encoding($string, "UTF-8");
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _validateString(string $string): bool
+	{
+		return mb_check_encoding($string, "UTF-8");
+	}
 }

lib/ASN1/Type/Primitive/GeneralizedTime.php

Indentation +102 added lines, -102 removed lines

@@ -16,112 +16,112 @@
  */
 class GeneralizedTime extends TimeType
 {
-    use UniversalClass;
-    use PrimitiveType;
+	use UniversalClass;
+	use PrimitiveType;
     
-    /**
-     * Regular expression to parse date.
-     *
-     * DER restricts format to UTC timezone (Z suffix).
-     *
-     * @var string
-     */
-    const REGEX = /* @formatter:off */ '#^' .
-        '(\d\d\d\d)' . /* YYYY */
-        '(\d\d)' . /* MM */
-        '(\d\d)' . /* DD */
-        '(\d\d)' . /* hh */
-        '(\d\d)' . /* mm */
-        '(\d\d)' . /* ss */
-        '(?:\.(\d+))?' . /* frac */
-        'Z' . /* TZ */
-        '$#' /* @formatter:on */;
+	/**
+	 * Regular expression to parse date.
+	 *
+	 * DER restricts format to UTC timezone (Z suffix).
+	 *
+	 * @var string
+	 */
+	const REGEX = /* @formatter:off */ '#^' .
+		'(\d\d\d\d)' . /* YYYY */
+		'(\d\d)' . /* MM */
+		'(\d\d)' . /* DD */
+		'(\d\d)' . /* hh */
+		'(\d\d)' . /* mm */
+		'(\d\d)' . /* ss */
+		'(?:\.(\d+))?' . /* frac */
+		'Z' . /* TZ */
+		'$#' /* @formatter:on */;
     
-    /**
-     * Cached formatted date.
-     *
-     * @var string|null
-     */
-    private $_formatted;
+	/**
+	 * Cached formatted date.
+	 *
+	 * @var string|null
+	 */
+	private $_formatted;
     
-    /**
-     * Constructor.
-     *
-     * @param \DateTimeImmutable $dt
-     */
-    public function __construct(\DateTimeImmutable $dt)
-    {
-        $this->_typeTag = self::TYPE_GENERALIZED_TIME;
-        parent::__construct($dt);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param \DateTimeImmutable $dt
+	 */
+	public function __construct(\DateTimeImmutable $dt)
+	{
+		$this->_typeTag = self::TYPE_GENERALIZED_TIME;
+		parent::__construct($dt);
+	}
     
-    /**
-     * Clear cached variables on clone.
-     */
-    public function __clone()
-    {
-        $this->_formatted = null;
-    }
+	/**
+	 * Clear cached variables on clone.
+	 */
+	public function __clone()
+	{
+		$this->_formatted = null;
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        if (!isset($this->_formatted)) {
-            $dt = $this->_dateTime->setTimezone(
-                self::_createTimeZone(self::TZ_UTC));
-            $this->_formatted = $dt->format("YmdHis");
-            // if fractions were used
-            $frac = $dt->format("u");
-            if ($frac != 0) {
-                $frac = rtrim($frac, "0");
-                $this->_formatted .= ".$frac";
-            }
-            // timezone
-            $this->_formatted .= "Z";
-        }
-        return $this->_formatted;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		if (!isset($this->_formatted)) {
+			$dt = $this->_dateTime->setTimezone(
+				self::_createTimeZone(self::TZ_UTC));
+			$this->_formatted = $dt->format("YmdHis");
+			// if fractions were used
+			$frac = $dt->format("u");
+			if ($frac != 0) {
+				$frac = rtrim($frac, "0");
+				$this->_formatted .= ".$frac";
+			}
+			// timezone
+			$this->_formatted .= "Z";
+		}
+		return $this->_formatted;
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     * @return self
-     */
-    protected static function _decodeFromDER(Identifier $identifier, string $data,
-        int &$offset)
-    {
-        $idx = $offset;
-        $length = Length::expectFromDER($data, $idx);
-        $str = substr($data, $idx, $length->length());
-        $idx += $length->length();
-        if (!preg_match(self::REGEX, $str, $match)) {
-            throw new DecodeException("Invalid GeneralizedTime format.");
-        }
-        list(, $year, $month, $day, $hour, $minute, $second) = $match;
-        if (isset($match[7])) {
-            $frac = $match[7];
-            // DER restricts trailing zeroes in fractional seconds component
-            if ('0' === $frac[strlen($frac) - 1]) {
-                throw new DecodeException(
-                    "Fractional seconds must omit trailing zeroes.");
-            }
-            $frac = (int) $frac;
-        } else {
-            $frac = 0;
-        }
-        $time = $year . $month . $day . $hour . $minute . $second . "." . $frac .
-             self::TZ_UTC;
-        $dt = \DateTimeImmutable::createFromFormat("!YmdHis.uT", $time,
-            self::_createTimeZone(self::TZ_UTC));
-        if (!$dt) {
-            throw new DecodeException(
-                "Failed to decode GeneralizedTime: " .
-                     self::_getLastDateTimeImmutableErrorsStr());
-        }
-        $offset = $idx;
-        return new self($dt);
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 * @return self
+	 */
+	protected static function _decodeFromDER(Identifier $identifier, string $data,
+		int &$offset)
+	{
+		$idx = $offset;
+		$length = Length::expectFromDER($data, $idx);
+		$str = substr($data, $idx, $length->length());
+		$idx += $length->length();
+		if (!preg_match(self::REGEX, $str, $match)) {
+			throw new DecodeException("Invalid GeneralizedTime format.");
+		}
+		list(, $year, $month, $day, $hour, $minute, $second) = $match;
+		if (isset($match[7])) {
+			$frac = $match[7];
+			// DER restricts trailing zeroes in fractional seconds component
+			if ('0' === $frac[strlen($frac) - 1]) {
+				throw new DecodeException(
+					"Fractional seconds must omit trailing zeroes.");
+			}
+			$frac = (int) $frac;
+		} else {
+			$frac = 0;
+		}
+		$time = $year . $month . $day . $hour . $minute . $second . "." . $frac .
+			 self::TZ_UTC;
+		$dt = \DateTimeImmutable::createFromFormat("!YmdHis.uT", $time,
+			self::_createTimeZone(self::TZ_UTC));
+		if (!$dt) {
+			throw new DecodeException(
+				"Failed to decode GeneralizedTime: " .
+					 self::_getLastDateTimeImmutableErrorsStr());
+		}
+		$offset = $idx;
+		return new self($dt);
+	}
 }