<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\Engineering;
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use PhpOffice\PhpSpreadsheet\Calculation\Exception;
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use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
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class ConvertBinary extends ConvertBase
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{
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/**
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* toDecimal.
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*
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* Return a binary value as decimal.
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*
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* Excel Function:
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* BIN2DEC(x)
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*
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* @param array|bool|float|int|string $value The binary number (as a string) that you want to convert. The number
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* cannot contain more than 10 characters (10 bits). The most significant
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* bit of number is the sign bit. The remaining 9 bits are magnitude bits.
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* Negative numbers are represented using two's-complement notation.
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* If number is not a valid binary number, or if number contains more than
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* 10 characters (10 bits), BIN2DEC returns the #NUM! error value.
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* Or can be an array of values
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*
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* @return array|string Result, or an error
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* If an array of numbers is passed as an argument, then the returned result will also be an array
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* with the same dimensions
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*/
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public static function toDecimal($value)
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{
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if (is_array($value)) {
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return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $value);
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}
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try {
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$value = self::validateValue($value);
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$value = self::validateBinary($value);
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} catch (Exception $e) {
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return $e->getMessage();
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}
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if (strlen($value) == 10 && $value[0] === '1') {
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// Two's Complement
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$value = substr($value, -9);
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return '-' . (512 - bindec($value));
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}
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return (string) bindec($value);
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}
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/**
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* toHex.
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*
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* Return a binary value as hex.
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*
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* Excel Function:
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* BIN2HEX(x[,places])
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*
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* @param array|bool|float|int|string $value The binary number (as a string) that you want to convert. The number
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* cannot contain more than 10 characters (10 bits). The most significant
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* bit of number is the sign bit. The remaining 9 bits are magnitude bits.
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* Negative numbers are represented using two's-complement notation.
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* If number is not a valid binary number, or if number contains more than
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* 10 characters (10 bits), BIN2HEX returns the #NUM! error value.
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* Or can be an array of values
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* @param null|array|float|int|string $places The number of characters to use. If places is omitted, BIN2HEX uses the
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* minimum number of characters necessary. Places is useful for padding the
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* return value with leading 0s (zeros).
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* If places is not an integer, it is truncated.
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* If places is nonnumeric, BIN2HEX returns the #VALUE! error value.
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* If places is negative, BIN2HEX returns the #NUM! error value.
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* Or can be an array of values
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*
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* @return array|string Result, or an error
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* If an array of numbers is passed as an argument, then the returned result will also be an array
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* with the same dimensions
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*/
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public static function toHex($value, $places = null): array|string
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{
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if (is_array($value) || is_array($places)) {
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return self::evaluateArrayArguments([self::class, __FUNCTION__], $value, $places);
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}
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try {
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$value = self::validateValue($value);
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$value = self::validateBinary($value);
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$places = self::validatePlaces($places);
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} catch (Exception $e) {
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return $e->getMessage();
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}
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if (strlen($value) == 10 && $value[0] === '1') {
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$high2 = substr($value, 0, 2);
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$low8 = substr($value, 2);
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$xarr = ['00' => '00000000', '01' => '00000001', '10' => 'FFFFFFFE', '11' => 'FFFFFFFF'];
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return $xarr[$high2] . strtoupper(substr('0' . dechex((int) bindec($low8)), -2));
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}
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$hexVal = (string) strtoupper(dechex((int) bindec($value)));
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return self::nbrConversionFormat($hexVal, $places);
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}
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/**
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* toOctal.
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*
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* Return a binary value as octal.
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*
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* Excel Function:
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* BIN2OCT(x[,places])
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*
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* @param array|bool|float|int|string $value The binary number (as a string) that you want to convert. The number
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* cannot contain more than 10 characters (10 bits). The most significant
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* bit of number is the sign bit. The remaining 9 bits are magnitude bits.
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* Negative numbers are represented using two's-complement notation.
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* If number is not a valid binary number, or if number contains more than
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* 10 characters (10 bits), BIN2OCT returns the #NUM! error value.
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* Or can be an array of values
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* @param null|array|float|int|string $places The number of characters to use. If places is omitted, BIN2OCT uses the
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* minimum number of characters necessary. Places is useful for padding the
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* return value with leading 0s (zeros).
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* If places is not an integer, it is truncated.
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* If places is nonnumeric, BIN2OCT returns the #VALUE! error value.
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* If places is negative, BIN2OCT returns the #NUM! error value.
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* Or can be an array of values
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*
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* @return array|string Result, or an error
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* If an array of numbers is passed as an argument, then the returned result will also be an array
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* with the same dimensions
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*/
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public static function toOctal($value, $places = null): array|string
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{
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if (is_array($value) || is_array($places)) {
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return self::evaluateArrayArguments([self::class, __FUNCTION__], $value, $places);
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}
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try {
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$value = self::validateValue($value);
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$value = self::validateBinary($value);
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$places = self::validatePlaces($places);
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} catch (Exception $e) {
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return $e->getMessage();
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}
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if (strlen($value) == 10 && $value[0] === '1') { // Two's Complement
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return str_repeat('7', 6) . strtoupper(decoct((int) bindec("11$value")));
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}
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$octVal = (string) decoct((int) bindec($value));
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return self::nbrConversionFormat($octVal, $places);
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}
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protected static function validateBinary(string $value): string
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{
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if ((strlen($value) > preg_match_all('/[01]/', $value)) || (strlen($value) > 10)) {
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throw new Exception(ExcelError::NAN());
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}
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return $value;
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}
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}
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