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<?php |
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/* |
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* This file is part of PommProject's Foundation package. |
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* |
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* (c) 2014 Grégoire HUBERT <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace PommProject\Foundation\Converter\Type; |
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/** |
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* BaseRange |
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* |
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* Abstract classes for range types. |
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* |
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* @package Foundation |
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* @copyright 2014 Grégoire HUBERT |
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* @author Grégoire HUBERT |
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* @license X11 {@link http://opensource.org/licenses/mit-license.php} |
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* @abstract |
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*/ |
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abstract class BaseRange |
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{ |
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public $start_limit; |
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public $end_limit; |
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public $start_incl; |
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public $end_incl; |
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protected $description; |
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/** |
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* getRegexp |
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* |
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* This function function must capture 4 elements of the description in |
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* this order: |
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* |
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* - left bracket style |
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* - left element |
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* - right element |
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* - right bracket style |
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* |
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* @access protected |
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* @return string |
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*/ |
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abstract protected function getRegexp(); |
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/** |
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* getSubElement |
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* |
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* Return the representation for each element. |
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* |
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* @access protected |
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* @param string $element |
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* @return mixed |
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*/ |
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abstract protected function getSubElement($element); |
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/** |
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* __construct |
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* |
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* Create an instance from a string definition. This string definition |
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* matches PostgreSQL range definition. |
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* |
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* @access public |
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* @param string $description |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct($description) |
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{ |
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if (!preg_match($this->getRegexp(), $description, $matches)) { |
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throw new \InvalidArgumentException( |
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sprintf( |
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"Could not parse NumRange description '%s'.", |
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$description |
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) |
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); |
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} |
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$this->start_limit = $this->getSubElement($matches[2]); |
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$this->end_limit = $this->getSubElement($matches[3]); |
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$this->start_incl = (bool) ($matches[1] === '['); |
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$this->end_incl = (bool) ($matches[4] === ']'); |
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$this->description = $description; |
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} |
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/** |
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* __toString |
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* |
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* Text representation of a range. |
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* |
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* @access public |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->description; |
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} |
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} |
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pomm-project /
Foundation
