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<?php |
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/** |
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* SCSSPHP |
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* |
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* @copyright 2012-2015 Leaf Corcoran |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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* |
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* @link http://leafo.github.io/scssphp |
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*/ |
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|
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namespace Leafo\ScssPhp; |
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|
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use Leafo\ScssPhp\Base\Range; |
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|
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/** |
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* SCSS utilties |
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* |
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* @author Anthon Pang <anthon.pang@gmail.com> |
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*/ |
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class Util |
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{ |
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/** |
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* Asserts that `value` falls within `range` (inclusive), leaving |
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* room for slight floating-point errors. |
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* |
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* @param string $name The name of the value. Used in the error message. |
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* @param Range $range Range of values. |
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* @param array $value The value to check. |
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* @param string $unit The unit of the value. Used in error reporting. |
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* |
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* @return mixed `value` adjusted to fall within range, if it was outside by a floating-point margin. |
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* |
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* @throws \Exception |
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*/ |
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public static function checkRange($name, Range $range, $value, $unit = '') |
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{ |
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$val = $value[1]; |
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$grace = new Range(-0.00001, 0.00001); |
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|
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if ($range->includes($val)) { |
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return $val; |
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} |
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|
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if ($grace->includes($val - $range->first)) { |
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return $range->first; |
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} |
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|
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if ($grace->includes($val - $range->last)) { |
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return $range->last; |
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} |
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|
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throw new \Exception("$name {$val} must be between {$range->first} and {$range->last}$unit"); |
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} |
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} |
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|
