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Direktori : /home2/selectio/www/limpiar.in.net/vendor/league/commonmark/src/Delimiter/ |
Current File : //home2/selectio/www/limpiar.in.net/vendor/league/commonmark/src/Delimiter/DelimiterParser.php |
<?php declare(strict_types=1); namespace League\CommonMark\Delimiter; use League\CommonMark\Delimiter\Processor\DelimiterProcessorCollection; use League\CommonMark\Delimiter\Processor\DelimiterProcessorInterface; use League\CommonMark\Node\Inline\Text; use League\CommonMark\Parser\Inline\InlineParserInterface; use League\CommonMark\Parser\Inline\InlineParserMatch; use League\CommonMark\Parser\InlineParserContext; use League\CommonMark\Util\RegexHelper; /** * Delimiter parsing is implemented as an Inline Parser with the lowest-possible priority * * @internal */ final class DelimiterParser implements InlineParserInterface { private DelimiterProcessorCollection $collection; public function __construct(DelimiterProcessorCollection $collection) { $this->collection = $collection; } public function getMatchDefinition(): InlineParserMatch { return InlineParserMatch::oneOf(...$this->collection->getDelimiterCharacters()); } public function parse(InlineParserContext $inlineContext): bool { $character = $inlineContext->getFullMatch(); $numDelims = 0; $cursor = $inlineContext->getCursor(); $processor = $this->collection->getDelimiterProcessor($character); \assert($processor !== null); // Delimiter processor should never be null here $charBefore = $cursor->peek(-1); if ($charBefore === null) { $charBefore = "\n"; } while ($cursor->peek($numDelims) === $character) { ++$numDelims; } if ($numDelims < $processor->getMinLength()) { return false; } $cursor->advanceBy($numDelims); $charAfter = $cursor->getCurrentCharacter(); if ($charAfter === null) { $charAfter = "\n"; } [$canOpen, $canClose] = self::determineCanOpenOrClose($charBefore, $charAfter, $character, $processor); $node = new Text(\str_repeat($character, $numDelims), [ 'delim' => true, ]); $inlineContext->getContainer()->appendChild($node); // Add entry to stack to this opener if ($canOpen || $canClose) { $delimiter = new Delimiter($character, $numDelims, $node, $canOpen, $canClose); $inlineContext->getDelimiterStack()->push($delimiter); } return true; } /** * @return bool[] */ private static function determineCanOpenOrClose(string $charBefore, string $charAfter, string $character, DelimiterProcessorInterface $delimiterProcessor): array { $afterIsWhitespace = \preg_match(RegexHelper::REGEX_UNICODE_WHITESPACE_CHAR, $charAfter); $afterIsPunctuation = \preg_match(RegexHelper::REGEX_PUNCTUATION, $charAfter); $beforeIsWhitespace = \preg_match(RegexHelper::REGEX_UNICODE_WHITESPACE_CHAR, $charBefore); $beforeIsPunctuation = \preg_match(RegexHelper::REGEX_PUNCTUATION, $charBefore); $leftFlanking = ! $afterIsWhitespace && (! $afterIsPunctuation || $beforeIsWhitespace || $beforeIsPunctuation); $rightFlanking = ! $beforeIsWhitespace && (! $beforeIsPunctuation || $afterIsWhitespace || $afterIsPunctuation); if ($character === '_') { $canOpen = $leftFlanking && (! $rightFlanking || $beforeIsPunctuation); $canClose = $rightFlanking && (! $leftFlanking || $afterIsPunctuation); } else { $canOpen = $leftFlanking && $character === $delimiterProcessor->getOpeningCharacter(); $canClose = $rightFlanking && $character === $delimiterProcessor->getClosingCharacter(); } return [$canOpen, $canClose]; } }