Viewing file:  FencedCode.php (4.22 KB) -rw-r--r--
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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\Block\Element;
use League\CommonMark\ContextInterface;
use League\CommonMark\Cursor;
use League\CommonMark\Util\RegexHelper;
class FencedCode extends AbstractStringContainerBlock
{
/**
* @var string
*/
protected $info;
/**
* @var int
*/
protected $length;
/**
* @var string
*/
protected $char;
/**
* @var int
*/
protected $offset;
/**
* @param int $length
* @param string $char
* @param int $offset
*/
public function __construct(int $length, string $char, int $offset)
{
parent::__construct();
$this->length = $length;
$this->char = $char;
$this->offset = $offset;
}
/**
* @return string
*/
public function getInfo(): string
{
return $this->info;
}
/**
* @return string[]
*/
public function getInfoWords(): array
{
return \preg_split('/\s+/', $this->info) ?: [];
}
/**
* @return string
*/
public function getChar(): string
{
return $this->char;
}
/**
* @param string $char
*
* @return $this
*/
public function setChar(string $char): self
{
$this->char = $char;
return $this;
}
/**
* @return int
*/
public function getLength(): int
{
return $this->length;
}
/**
* @param int $length
*
* @return $this
*/
public function setLength(int $length): self
{
$this->length = $length;
return $this;
}
/**
* @return int
*/
public function getOffset(): int
{
return $this->offset;
}
/**
* @param int $offset
*
* @return $this
*/
public function setOffset(int $offset): self
{
$this->offset = $offset;
return $this;
}
public function canContain(AbstractBlock $block): bool
{
return false;
}
public function isCode(): bool
{
return true;
}
public function matchesNextLine(Cursor $cursor): bool
{
if ($this->length === -1) {
if ($cursor->isBlank()) {
$this->lastLineBlank = true;
}
return false;
}
// Skip optional spaces of fence offset
$cursor->match('/^ {0,' . $this->offset . '}/');
return true;
}
public function finalize(ContextInterface $context, int $endLineNumber)
{
parent::finalize($context, $endLineNumber);
// first line becomes info string
$firstLine = $this->strings->first();
if ($firstLine === false) {
$firstLine = '';
}
$this->info = RegexHelper::unescape(\trim($firstLine));
if ($this->strings->count() === 1) {
$this->finalStringContents = '';
} else {
$this->finalStringContents = \implode("\n", $this->strings->slice(1)) . "\n";
}
}
public function handleRemainingContents(ContextInterface $context, Cursor $cursor)
{
/** @var self $container */
$container = $context->getContainer();
// check for closing code fence
if ($cursor->getIndent() <= 3 && $cursor->getNextNonSpaceCharacter() === $container->getChar()) {
$match = RegexHelper::matchFirst('/^(?:`{3,}|~{3,})(?= *$)/', $cursor->getLine(), $cursor->getNextNonSpacePosition());
if ($match !== null && \strlen($match[0]) >= $container->getLength()) {
// don't add closing fence to container; instead, close it:
$this->setLength(-1); // -1 means we've passed closer
return;
}
}
$container->addLine($cursor->getRemainder());
}
public function shouldLastLineBeBlank(Cursor $cursor, int $currentLineNumber): bool
{
return false;
}
}
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