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<?php |
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namespace Riimu\Kit\BaseConversion\DigitList; |
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/** |
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* Provides common functionality for different digit lists. |
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* @author Riikka Kalliomäki <[email protected]> |
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* @copyright Copyright (c) 2015-2017 Riikka Kalliomäki |
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* @license http://opensource.org/licenses/mit-license.php MIT License |
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*/ |
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abstract class AbstractDigitList implements DigitList |
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{ |
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/** @var array List of digits */ |
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protected $digits; |
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/** @var int[] List of digit values */ |
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protected $valueMap; |
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/** @var bool Tells if the digits are case sensitive or not */ |
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protected $caseSensitive; |
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/** @var bool Tells if the numeral system can be written using strings */ |
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protected $stringConflict; |
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/** |
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* Sets the value map and determines if it's case sensitive. |
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* @param int[] $map List of values for digits |
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*/ |
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protected function setValueMap(array $map) |
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{ |
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$lower = array_change_key_case($map); |
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$this->caseSensitive = count($lower) !== count($map); |
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$this->valueMap = $this->caseSensitive ? $map : $lower; |
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} |
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public function hasStringConflict() |
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{ |
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return $this->stringConflict; |
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} |
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public function isCaseSensitive() |
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{ |
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return $this->caseSensitive; |
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} |
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public function getDigits() |
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{ |
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return $this->digits; |
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} |
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public function getDigit($value) |
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{ |
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$value = (int) $value; |
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if (!isset($this->digits[$value])) { |
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throw new \InvalidArgumentException('Invalid digit value'); |
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} |
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return $this->digits[$value]; |
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} |
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public function getValue($digit) |
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{ |
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if (!is_scalar($digit)) { |
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throw new InvalidDigitException('Invalid digit'); |
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} |
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$digit = $this->caseSensitive ? (string) $digit : strtolower((string) $digit); |
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if (!isset($this->valueMap[$digit])) { |
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throw new InvalidDigitException('Invalid digit'); |
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} |
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return $this->valueMap[$digit]; |
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} |
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public function count() |
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{ |
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return count($this->digits); |
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} |
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} |
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Riimu /
Kit-BaseConversion
