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<?php |
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declare(strict_types=1); |
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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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* 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\Extension\Mention; |
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use League\CommonMark\Extension\Mention\Generator\CallbackGenerator; |
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use League\CommonMark\Extension\Mention\Generator\MentionGeneratorInterface; |
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use League\CommonMark\Extension\Mention\Generator\StringTemplateLinkGenerator; |
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use League\CommonMark\Parser\Inline\InlineParserInterface; |
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use League\CommonMark\Parser\Inline\InlineParserMatch; |
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use League\CommonMark\Parser\InlineParserContext; |
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final class MentionParser implements InlineParserInterface |
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{ |
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/** @psalm-readonly */ |
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private string $name; |
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/** @psalm-readonly */ |
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private string $prefix; |
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/** @psalm-readonly */ |
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private string $identifierPattern; |
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/** @psalm-readonly */ |
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private MentionGeneratorInterface $mentionGenerator; |
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public function __construct(string $name, string $prefix, string $identifierPattern, MentionGeneratorInterface $mentionGenerator) |
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{ |
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$this->name = $name; |
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$this->prefix = $prefix; |
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$this->identifierPattern = $identifierPattern; |
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$this->mentionGenerator = $mentionGenerator; |
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} |
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public function getMatchDefinition(): InlineParserMatch |
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{ |
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return InlineParserMatch::join( |
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InlineParserMatch::string($this->prefix), |
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InlineParserMatch::regex($this->identifierPattern) |
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); |
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} |
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public function parse(InlineParserContext $inlineContext): bool |
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{ |
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$cursor = $inlineContext->getCursor(); |
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// The prefix must not have any other characters immediately prior |
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$previousChar = $cursor->peek(-1); |
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if ($previousChar !== null && \preg_match('/\w/', $previousChar)) { |
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// peek() doesn't modify the cursor, so no need to restore state first |
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return false; |
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} |
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[$prefix, $identifier] = $inlineContext->getSubMatches(); |
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$mention = $this->mentionGenerator->generateMention(new Mention($this->name, $prefix, $identifier)); |
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if ($mention === null) { |
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return false; |
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} |
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$cursor->advanceBy($inlineContext->getFullMatchLength()); |
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$inlineContext->getContainer()->appendChild($mention); |
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return true; |
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} |
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public static function createWithStringTemplate(string $name, string $prefix, string $mentionRegex, string $urlTemplate): MentionParser |
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{ |
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return new self($name, $prefix, $mentionRegex, new StringTemplateLinkGenerator($urlTemplate)); |
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} |
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public static function createWithCallback(string $name, string $prefix, string $mentionRegex, callable $callback): MentionParser |
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{ |
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return new self($name, $prefix, $mentionRegex, new CallbackGenerator($callback)); |
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} |
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} |
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thephpleague /
commonmark
