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<?php
/**
* SCSSPHP
*
* @copyright 2012-2020 Leaf Corcoran
*
* @license http://opensource.org/licenses/MIT MIT
*
* @link http://scssphp.github.io/scssphp
*/
namespace ScssPhp\ScssPhp\Formatter;
use ScssPhp\ScssPhp\Formatter;
use ScssPhp\ScssPhp\Type;
/**
* Nested formatter
*
* @author Leaf Corcoran <leafot@gmail.com>
*
* @deprecated since 1.4.0. Use the Expanded formatter instead.
*
* @internal
*/
class Nested extends Formatter
{
/**
* @var int
*/
private $depth;
/**
* {@inheritdoc}
*/
public function __construct()
{
@trigger_error('The Nested formatter is deprecated since 1.4.0. Use the Expanded formatter instead.', E_USER_DEPRECATED);
$this->indentLevel = 0;
$this->indentChar = ' ';
$this->break = "\n";
$this->open = ' {';
$this->close = ' }';
$this->tagSeparator = ', ';
$this->assignSeparator = ': ';
$this->keepSemicolons = true;
}
/**
* {@inheritdoc}
*/
protected function indentStr()
{
$n = $this->depth - 1;
return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
}
/**
* {@inheritdoc}
*/
protected function blockLines(OutputBlock $block)
{
$inner = $this->indentStr();
$glue = $this->break . $inner;
foreach ($block->lines as $index => $line) {
if (substr($line, 0, 2) === '/*') {
$replacedLine = preg_replace('/\r\n?|\n|\f/', $this->break, $line);
assert($replacedLine !== null);
$block->lines[$index] = $replacedLine;
}
}
$this->write($inner . implode($glue, $block->lines));
}
/**
* {@inheritdoc}
*/
protected function block(OutputBlock $block)
{
static $depths;
static $downLevel;
static $closeBlock;
static $previousEmpty;
static $previousHasSelector;
if ($block->type === 'root') {
$depths = [ 0 ];
$downLevel = '';
$closeBlock = '';
$this->depth = 0;
$previousEmpty = false;
$previousHasSelector = false;
}
$isMediaOrDirective = \in_array($block->type, [Type::T_DIRECTIVE, Type::T_MEDIA]);
$isSupport = ($block->type === Type::T_DIRECTIVE
&& $block->selectors && strpos(implode('', $block->selectors), '@supports') !== false);
while ($block->depth < end($depths) || ($block->depth == 1 && end($depths) == 1)) {
array_pop($depths);
$this->depth--;
if (
! $this->depth && ($block->depth <= 1 || (! $this->indentLevel && $block->type === Type::T_COMMENT)) &&
(($block->selectors && ! $isMediaOrDirective) || $previousHasSelector)
) {
$downLevel = $this->break;
}
if (empty($block->lines) && empty($block->children)) {
$previousEmpty = true;
}
}
if (empty($block->lines) && empty($block->children)) {
return;
}
$this->currentBlock = $block;
if (! empty($block->lines) || (! empty($block->children) && ($this->depth < 1 || $isSupport))) {
if ($block->depth > end($depths)) {
if (! $previousEmpty || $this->depth < 1) {
$this->depth++;
$depths[] = $block->depth;
} else {
// keep the current depth unchanged but take the block depth as a new reference for following blocks
array_pop($depths);
$depths[] = $block->depth;
}
}
}
$previousEmpty = ($block->type === Type::T_COMMENT);
$previousHasSelector = false;
if (! empty($block->selectors)) {
if ($closeBlock) {
$this->write($closeBlock);
$closeBlock = '';
}
if ($downLevel) {
$this->write($downLevel);
$downLevel = '';
}
$this->blockSelectors($block);
$this->indentLevel++;
}
if (! empty($block->lines)) {
if ($closeBlock) {
$this->write($closeBlock);
$closeBlock = '';
}
if ($downLevel) {
$this->write($downLevel);
$downLevel = '';
}
$this->blockLines($block);
$closeBlock = $this->break;
}
if (! empty($block->children)) {
if ($this->depth > 0 && ($isMediaOrDirective || ! $this->hasFlatChild($block))) {
array_pop($depths);
$this->depth--;
$this->blockChildren($block);
$this->depth++;
$depths[] = $block->depth;
} else {
$this->blockChildren($block);
}
}
// reclear to not be spoiled by children if T_DIRECTIVE
if ($block->type === Type::T_DIRECTIVE) {
$previousHasSelector = false;
}
if (! empty($block->selectors)) {
$this->indentLevel--;
if (! $this->keepSemicolons) {
$this->strippedSemicolon = '';
}
$this->write($this->close);
$closeBlock = $this->break;
if ($this->depth > 1 && ! empty($block->children)) {
array_pop($depths);
$this->depth--;
}
if (! $isMediaOrDirective) {
$previousHasSelector = true;
}
}
if ($block->type === 'root') {
$this->write($this->break);
}
}
/**
* Block has flat child
*
* @param \ScssPhp\ScssPhp\Formatter\OutputBlock $block
*
* @return bool
*/
private function hasFlatChild($block)
{
foreach ($block->children as $child) {
if (empty($child->selectors)) {
return true;
}
}
return false;
}
}
|
