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<?php
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declare(strict_types=1);
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/*
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* This file is part of the league/commonmark package.
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*
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* (c) Colin O'Dell <colinodell@gmail.com>
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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 League\CommonMark\Extension\CommonMark\Parser\Block;
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use League\CommonMark\Extension\CommonMark\Node\Block\IndentedCode;
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use League\CommonMark\Parser\Block\AbstractBlockContinueParser;
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use League\CommonMark\Parser\Block\BlockContinue;
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use League\CommonMark\Parser\Block\BlockContinueParserInterface;
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use League\CommonMark\Parser\Cursor;
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use League\CommonMark\Util\ArrayCollection;
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final class IndentedCodeParser extends AbstractBlockContinueParser
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{
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/** @psalm-readonly */
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private IndentedCode $block;
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/** @var ArrayCollection<string> */
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private ArrayCollection $strings;
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public function __construct()
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{
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$this->block = new IndentedCode();
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$this->strings = new ArrayCollection();
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}
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public function getBlock(): IndentedCode
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{
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return $this->block;
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}
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public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue
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{
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if ($cursor->isIndented()) {
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$cursor->advanceBy(Cursor::INDENT_LEVEL, true);
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return BlockContinue::at($cursor);
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}
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if ($cursor->isBlank()) {
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$cursor->advanceToNextNonSpaceOrTab();
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return BlockContinue::at($cursor);
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}
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return BlockContinue::none();
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}
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public function addLine(string $line): void
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{
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$this->strings[] = $line;
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}
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public function closeBlock(): void
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{
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$reversed = \array_reverse($this->strings->toArray(), true);
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foreach ($reversed as $index => $line) {
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if ($line !== '' && $line !== "\n" && ! \preg_match('/^(\n *)$/', $line)) {
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break;
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}
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unset($reversed[$index]);
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}
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$fixed = \array_reverse($reversed);
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$tmp = \implode("\n", $fixed);
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if (\substr($tmp, -1) !== "\n") {
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$tmp .= "\n";
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}
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$this->block->setLiteral($tmp);
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}
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}
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