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<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark;
use League\CommonMark\Block\Element\AbstractBlock;
use League\CommonMark\Block\Element\Document;
use League\CommonMark\Reference\ReferenceParser;
/**
* Maintains the current state of the Markdown parser engine
*/
class Context implements ContextInterface
{
/**
* @var EnvironmentInterface
*/
protected $environment;
/**
* @var Document
*/
protected $doc;
/**
* @var AbstractBlock|null
*/
protected $tip;
/**
* @var AbstractBlock
*/
protected $container;
/**
* @var int
*/
protected $lineNumber;
/**
* @var string
*/
protected $line;
/**
* @var UnmatchedBlockCloser
*/
protected $blockCloser;
/**
* @var bool
*/
protected $blocksParsed = false;
/**
* @var ReferenceParser
*/
protected $referenceParser;
public function __construct(Document $document, EnvironmentInterface $environment)
{
$this->doc = $document;
$this->tip = $this->doc;
$this->container = $this->doc;
$this->environment = $environment;
$this->referenceParser = new ReferenceParser($document->getReferenceMap());
$this->blockCloser = new UnmatchedBlockCloser($this);
}
/**
* @param string $line
*
* @return void
*/
public function setNextLine(string $line)
{
++$this->lineNumber;
$this->line = $line;
}
public function getDocument(): Document
{
return $this->doc;
}
public function getTip(): ?AbstractBlock
{
return $this->tip;
}
/**
* @param AbstractBlock|null $block
*
* @return $this
*/
public function setTip(?AbstractBlock $block)
{
$this->tip = $block;
return $this;
}
public function getLineNumber(): int
{
return $this->lineNumber;
}
public function getLine(): string
{
return $this->line;
}
public function getBlockCloser(): UnmatchedBlockCloser
{
return $this->blockCloser;
}
public function getContainer(): AbstractBlock
{
return $this->container;
}
/**
* @param AbstractBlock $container
*
* @return $this
*/
public function setContainer(AbstractBlock $container)
{
$this->container = $container;
return $this;
}
public function addBlock(AbstractBlock $block)
{
$this->blockCloser->closeUnmatchedBlocks();
$block->setStartLine($this->lineNumber);
while ($this->tip !== null && !$this->tip->canContain($block)) {
$this->tip->finalize($this, $this->lineNumber);
}
// This should always be true
if ($this->tip !== null) {
$this->tip->appendChild($block);
}
$this->tip = $block;
$this->container = $block;
}
public function replaceContainerBlock(AbstractBlock $replacement)
{
$this->blockCloser->closeUnmatchedBlocks();
$replacement->setStartLine($this->container->getStartLine());
$this->container->replaceWith($replacement);
if ($this->tip === $this->container) {
$this->tip = $replacement;
}
$this->container = $replacement;
}
public function getBlocksParsed(): bool
{
return $this->blocksParsed;
}
/**
* @param bool $bool
*
* @return $this
*/
public function setBlocksParsed(bool $bool)
{
$this->blocksParsed = $bool;
return $this;
}
public function getReferenceParser(): ReferenceParser
{
return $this->referenceParser;
}
}
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