Code Duplication    Length = 15-15 lines in 3 locations

app/Vendor/PHPExcel/PHPExcel/Calculation/Engineering.php 3 locations

@@ 1488-1502 (lines=15) @@
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	 *									If places is negative, HEX2OCT returns the #NUM! error value.
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	 * @return	string
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	 */
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	public static function HEXTOOCT($x, $places=null) {
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		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
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		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);
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		if (is_bool($x)) {
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			return PHPExcel_Calculation_Functions::VALUE();
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		}
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		$x = (string) $x;
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		if (strlen($x) > preg_match_all('/[0123456789ABCDEF]/',strtoupper($x),$out)) {
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			return PHPExcel_Calculation_Functions::NaN();
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		}
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		$octVal = decoct(hexdec($x));
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		return self::_nbrConversionFormat($octVal,$places);
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	}	//	function HEXTOOCT()
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	/**
@@ 1539-1553 (lines=15) @@
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	 *									value.
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	 * @return	string
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	 */
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	public static function OCTTOBIN($x, $places=null) {
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		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
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		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);
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		if (is_bool($x)) {
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			return PHPExcel_Calculation_Functions::VALUE();
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		}
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		$x = (string) $x;
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		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {
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			return PHPExcel_Calculation_Functions::NaN();
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		}
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		$r = decbin(octdec($x));
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		return self::_nbrConversionFormat($r,$places);
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	}	//	function OCTTOBIN()
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	/**
@@ 1618-1632 (lines=15) @@
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	 *									If places is negative, OCT2HEX returns the #NUM! error value.
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	 * @return	string
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	 */
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	public static function OCTTOHEX($x, $places=null) {
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		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
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		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);
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		if (is_bool($x)) {
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			return PHPExcel_Calculation_Functions::VALUE();
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		}
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		$x = (string) $x;
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		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {
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			return PHPExcel_Calculation_Functions::NaN();
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		}
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		$hexVal = strtoupper(dechex(octdec($x)));
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		return self::_nbrConversionFormat($hexVal,$places);
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	}	//	function OCTTOHEX()
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	/**