/**
* Creates the variable. Detects the type.
*
* @param string $name The name of the variable
* @param mixed $value The value of the variable
* @return ILess_Variable
*/
public static function create($name, $value)
{
$important = false;
// name is marked as !name
if (strpos($name, '!') === 0) {
$important = true;
$name = substr($name, 1);
}
// Color
if (ILess_Color::isNamedColor($value) || strtolower($value) === 'transparent' || strpos($value, '#') === 0) {
$value = new ILess_Node_Color(new ILess_Color($value));
} elseif (preg_match(self::RGBA_COLOR_REGEXP, $value, $matches)) {
// RGB(A) colors
$value = new ILess_Node_Color(new ILess_Color(array($matches[1], $matches[2], $matches[3]), isset($matches[4]) ? $matches[4] : 1));
} elseif (preg_match(self::QUOTED_REGEXP, $value, $matches)) {
$value = new ILess_Node_Quoted($matches[0], $matches[0][0] == '"' ? $matches[1] : $matches[2]);
} elseif (strpos($value, 'http://') === 0 || strpos($value, 'https://') === 0) {
$value = new ILess_Node_Anonymous($value);
} elseif (preg_match(self::DIMENSION_REGEXP, $value, $matches)) {
$value = new ILess_Node_Dimension($matches[1], isset($matches[2]) ? $matches[2] : null);
} else {
$value = new ILess_Node_Anonymous($value);
}
return new ILess_Variable($name, $value, $important);
}
/**
* Return a color 10% points *darker*
*
* @param ILess_Node $color
* @param ILess_Node
* @return string
* @throws InvalidArgumentException If the node is invalid
*/
public function darken(ILess_Node $color, ILess_Node_Dimension $percentage = null)
{
// this is a keyword
if ($color instanceof ILess_Node_Keyword && ILess_Color::isNamedColor($color->value)) {
$color = new ILess_Node_Color(ILess_Color::color($color->value));
}
if (!$color instanceof ILess_Node_Color) {
throw new InvalidArgumentException('Cannot darken the color. Invalid color given.');
}
$percentage = $percentage ? $percentage->value / 100 : 10;
$lightness = $this->clamp($color->getLightness(true) - $percentage);
return $this->hsla($color->getHue(true), $color->getSaturation(true), $lightness, $color->getAlpha(true));
}
