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<?php |
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/** |
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* SCSSPHP |
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* |
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* @copyright 2012-2020 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://scssphp.github.io/scssphp |
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*/ |
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namespace ScssPhp\ScssPhp\Formatter; |
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use ScssPhp\ScssPhp\Formatter; |
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use ScssPhp\ScssPhp\Formatter\OutputBlock; |
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use ScssPhp\ScssPhp\Type; |
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/** |
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* Nested formatter |
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* |
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* @author Leaf Corcoran <[email protected]> |
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*/ |
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class Nested extends Formatter |
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{ |
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/** |
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* @var integer |
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*/ |
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private $depth; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct() |
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{ |
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$this->indentLevel = 0; |
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$this->indentChar = ' '; |
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$this->break = "\n"; |
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$this->open = ' {'; |
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$this->close = ' }'; |
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$this->tagSeparator = ', '; |
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$this->assignSeparator = ': '; |
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$this->keepSemicolons = true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function indentStr() |
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{ |
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$n = $this->depth - 1; |
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return str_repeat($this->indentChar, max($this->indentLevel + $n, 0)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function blockLines(OutputBlock $block) |
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{ |
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$inner = $this->indentStr(); |
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$glue = $this->break . $inner; |
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foreach ($block->lines as $index => $line) { |
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if (substr($line, 0, 2) === '/*') { |
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$block->lines[$index] = preg_replace('/\r\n?|\n|\f/', $this->break, $line); |
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} |
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} |
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$this->write($inner . implode($glue, $block->lines)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function block(OutputBlock $block) |
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{ |
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static $depths; |
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static $downLevel; |
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static $closeBlock; |
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static $previousEmpty; |
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static $previousHasSelector; |
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if ($block->type === 'root') { |
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$depths = [ 0 ]; |
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$downLevel = ''; |
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$closeBlock = ''; |
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$this->depth = 0; |
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$previousEmpty = false; |
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$previousHasSelector = false; |
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} |
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$isMediaOrDirective = \in_array($block->type, [Type::T_DIRECTIVE, Type::T_MEDIA]); |
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$isSupport = ($block->type === Type::T_DIRECTIVE |
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&& $block->selectors && strpos(implode('', $block->selectors), '@supports') !== false); |
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while ($block->depth < end($depths) || ($block->depth == 1 && end($depths) == 1)) { |
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array_pop($depths); |
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$this->depth--; |
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if ( |
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! $this->depth && ($block->depth <= 1 || (! $this->indentLevel && $block->type === Type::T_COMMENT)) && |
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(($block->selectors && ! $isMediaOrDirective) || $previousHasSelector) |
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) { |
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$downLevel = $this->break; |
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} |
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if (empty($block->lines) && empty($block->children)) { |
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$previousEmpty = true; |
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} |
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} |
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if (empty($block->lines) && empty($block->children)) { |
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return; |
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} |
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$this->currentBlock = $block; |
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if (! empty($block->lines) || (! empty($block->children) && ($this->depth < 1 || $isSupport))) { |
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if ($block->depth > end($depths)) { |
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if (! $previousEmpty || $this->depth < 1) { |
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$this->depth++; |
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$depths[] = $block->depth; |
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} else { |
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// keep the current depth unchanged but take the block depth as a new reference for following blocks |
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array_pop($depths); |
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$depths[] = $block->depth; |
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} |
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} |
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} |
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$previousEmpty = ($block->type === Type::T_COMMENT); |
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$previousHasSelector = false; |
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if (! empty($block->selectors)) { |
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if ($closeBlock) { |
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$this->write($closeBlock); |
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$closeBlock = ''; |
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} |
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if ($downLevel) { |
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$this->write($downLevel); |
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$downLevel = ''; |
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} |
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$this->blockSelectors($block); |
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$this->indentLevel++; |
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} |
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if (! empty($block->lines)) { |
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if ($closeBlock) { |
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$this->write($closeBlock); |
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$closeBlock = ''; |
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} |
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if ($downLevel) { |
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$this->write($downLevel); |
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$downLevel = ''; |
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} |
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$this->blockLines($block); |
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$closeBlock = $this->break; |
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} |
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if (! empty($block->children)) { |
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if ($this->depth > 0 && ($isMediaOrDirective || ! $this->hasFlatChild($block))) { |
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array_pop($depths); |
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$this->depth--; |
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$this->blockChildren($block); |
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$this->depth++; |
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$depths[] = $block->depth; |
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} else { |
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$this->blockChildren($block); |
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} |
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} |
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// reclear to not be spoiled by children if T_DIRECTIVE |
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if ($block->type === Type::T_DIRECTIVE) { |
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$previousHasSelector = false; |
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} |
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if (! empty($block->selectors)) { |
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$this->indentLevel--; |
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if (! $this->keepSemicolons) { |
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$this->strippedSemicolon = ''; |
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} |
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$this->write($this->close); |
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$closeBlock = $this->break; |
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if ($this->depth > 1 && ! empty($block->children)) { |
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array_pop($depths); |
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$this->depth--; |
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} |
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if (! $isMediaOrDirective) { |
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$previousHasSelector = true; |
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} |
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} |
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if ($block->type === 'root') { |
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$this->write($this->break); |
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} |
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} |
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/** |
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* Block has flat child |
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* |
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* @param \ScssPhp\ScssPhp\Formatter\OutputBlock $block |
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* |
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* @return boolean |
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*/ |
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private function hasFlatChild($block) |
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{ |
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foreach ($block->children as $child) { |
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if (empty($child->selectors)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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ProfessionalWiki /
Bootstrap
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.