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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\Inline\Parser; |
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use League\CommonMark\Inline\Element\Code; |
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use League\CommonMark\Inline\Element\Text; |
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use League\CommonMark\InlineParserContext; |
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use League\CommonMark\Util\RegexHelper; |
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class BacktickParser extends AbstractInlineParser |
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{ |
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/** |
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* @return string[] |
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*/ |
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public function getCharacters() |
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{ |
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return ['`']; |
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} |
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/** |
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* @param InlineParserContext $inlineContext |
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* |
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* @return bool |
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*/ |
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public function parse(InlineParserContext $inlineContext) |
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{ |
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$cursor = $inlineContext->getCursor(); |
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$ticks = $cursor->match('/^`+/'); |
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if ($ticks === '') { |
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return false; |
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} |
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$currentPosition = $cursor->getPosition(); |
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$previousState = $cursor->saveState(); |
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while ($matchingTicks = $cursor->match('/`+/m')) { |
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if ($matchingTicks === $ticks) { |
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$code = mb_substr($cursor->getLine(), $currentPosition, $cursor->getPosition() - $currentPosition - strlen($ticks), 'utf-8'); |
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$c = preg_replace(RegexHelper::REGEX_WHITESPACE, ' ', $code); |
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$inlineContext->getContainer()->appendChild(new Code(trim($c))); |
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return true; |
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} |
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} |
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// If we got here, we didn't match a closing backtick sequence |
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$cursor->restoreState($previousState); |
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$inlineContext->getContainer()->appendChild(new Text($ticks)); |
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return true; |
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} |
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} |
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thephpleague /
commonmark
