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<?php |
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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 <[email protected]> |
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* |
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* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js) |
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* - (c) John MacFarlane |
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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\Block\Element; |
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use League\CommonMark\ContextInterface; |
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use League\CommonMark\Cursor; |
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use League\CommonMark\Util\RegexHelper; |
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class FencedCode extends AbstractBlock |
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{ |
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/** |
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* @var string |
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*/ |
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protected $info; |
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/** |
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* @var int |
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*/ |
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protected $length; |
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/** |
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* @var string |
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*/ |
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protected $char; |
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/** |
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* @var int |
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*/ |
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protected $offset; |
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/** |
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* @param int $length |
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* @param string $char |
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* @param int $offset |
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*/ |
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public function __construct($length, $char, $offset) |
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{ |
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parent::__construct(); |
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$this->length = $length; |
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$this->char = $char; |
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$this->offset = $offset; |
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} |
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/** |
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* @return string |
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*/ |
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public function getInfo() |
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{ |
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return $this->info; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getInfoWords() |
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{ |
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return preg_split('/\s+/', $this->info); |
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} |
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/** |
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* @return string |
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*/ |
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public function getChar() |
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{ |
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return $this->char; |
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} |
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/** |
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* @param string $char |
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* |
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* @return $this |
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*/ |
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public function setChar($char) |
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{ |
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$this->char = $char; |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function getLength() |
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{ |
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return $this->length; |
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} |
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/** |
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* @param int $length |
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* |
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* @return $this |
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*/ |
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public function setLength($length) |
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{ |
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$this->length = $length; |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function getOffset() |
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{ |
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return $this->offset; |
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} |
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/** |
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* @param int $offset |
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* |
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* @return $this |
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*/ |
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public function setOffset($offset) |
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{ |
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$this->offset = $offset; |
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return $this; |
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} |
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/** |
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* Returns true if this block can contain the given block as a child node |
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* |
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* @param AbstractBlock $block |
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* |
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* @return bool |
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*/ |
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public function canContain(AbstractBlock $block) |
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{ |
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return false; |
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} |
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/** |
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* Returns true if block type can accept lines of text |
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* |
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* @return bool |
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*/ |
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public function acceptsLines() |
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{ |
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return true; |
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} |
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/** |
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* Whether this is a code block |
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* |
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* @return bool |
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*/ |
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public function isCode() |
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{ |
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return true; |
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} |
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public function matchesNextLine(Cursor $cursor) |
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{ |
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if ($this->length === -1) { |
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if ($cursor->isBlank()) { |
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$this->lastLineBlank = true; |
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} |
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return false; |
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} |
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// Skip optional spaces of fence offset |
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$cursor->match('/^ {0,' . $this->offset . '}/'); |
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return true; |
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} |
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public function finalize(ContextInterface $context, $endLineNumber) |
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{ |
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parent::finalize($context, $endLineNumber); |
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// first line becomes info string |
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$this->info = RegexHelper::unescape(trim($this->strings->first())); |
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if ($this->strings->count() === 1) { |
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$this->finalStringContents = ''; |
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} else { |
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$this->finalStringContents = implode("\n", $this->strings->slice(1)) . "\n"; |
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} |
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} |
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/** |
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* @param ContextInterface $context |
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* @param Cursor $cursor |
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*/ |
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public function handleRemainingContents(ContextInterface $context, Cursor $cursor) |
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{ |
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/** @var FencedCode $container */ |
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$container = $context->getContainer(); |
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// check for closing code fence |
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if ($cursor->getIndent() <= 3 && $cursor->getNextNonSpaceCharacter() === $container->getChar()) { |
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$match = RegexHelper::matchAll('/^(?:`{3,}|~{3,})(?= *$)/', $cursor->getLine(), $cursor->getNextNonSpacePosition()); |
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if (strlen($match[0]) >= $container->getLength()) { |
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// don't add closing fence to container; instead, close it: |
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$this->setLength(-1); // -1 means we've passed closer |
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return; |
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} |
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} |
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$context->getTip()->addLine($cursor->getRemainder()); |
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} |
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/** |
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* @param Cursor $cursor |
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* @param int $currentLineNumber |
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* |
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* @return bool |
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*/ |
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public function shouldLastLineBeBlank(Cursor $cursor, $currentLineNumber) |
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{ |
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return false; |
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} |
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} |
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