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<?php |
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/** |
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* This file is part of laravel.su package. |
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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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declare(strict_types=1); |
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namespace App\Services\ContentRenderer; |
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use cebe\markdown\Parser; |
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/** |
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* Class LaravelDocsRenderer. |
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*/ |
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class LaravelDocsRenderer extends MarkdownRenderer |
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{ |
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/** |
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* LaravelDocsRenderer constructor. |
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* |
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* @param Parser $parser |
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*/ |
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public function __construct(Parser $parser) |
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{ |
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parent::__construct($parser); |
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// Remove unused content (headers and nav) |
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$this->before($this->removeDocumentTitle()); |
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$this->before($this->removeLeadingNavigation()); |
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// Force hide anchors |
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$this->before($this->hideExternalAnchors()); |
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// Cross-page navigation |
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$this->before($this->fixDocsNavigationLinks()); |
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// Move "{tip}" and "{note}" to class |
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$this->after($this->parseQuotes()); |
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} |
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/** |
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* Исправляет ссылки в документации "/docs/{version}/...". |
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* |
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* TODO Надо это не забыть реализовать =) |
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* |
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* @return \Closure |
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*/ |
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private function fixDocsNavigationLinks(): \Closure |
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{ |
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return function (string $body) { |
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return $body; |
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}; |
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} |
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/** |
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* Заменяет все вхождения вида "> {tip}" на "<blockquote class="quote-tip">". |
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* |
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* @return \Closure |
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*/ |
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private function parseQuotes(): \Closure |
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{ |
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$pattern = '/<blockquote>\s*<p>\s*{([a-z]+)}\s*(.*?)<\/p>\s*<\/blockquote>/isu'; |
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return function (string $body) use ($pattern) { |
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return preg_replace($pattern, '<blockquote class="quote-$1">$2</blockquote>', $body); |
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}; |
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} |
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/** |
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* Удаляет навигацию из начала документа. |
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* |
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* @return \Closure |
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*/ |
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private function removeLeadingNavigation(): \Closure |
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{ |
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return function (string $body) { |
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/** |
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* TODO This expression are vulnerable: ReDoS-based exploit. Probably we can improve and fix it? |
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* |
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* @see https://en.wikipedia.org/wiki/ReDoS |
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*/ |
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return preg_replace('/^(?:[\n\s]*\-.*?\n)+/isu', '', $body); |
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}; |
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} |
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/** |
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* Скрывает из исходного текста все вхождения "<a .... name="some">...</a>". |
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* Требуется для избежания конфликтов с вёрсткой. |
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* |
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* @return \Closure |
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*/ |
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private function hideExternalAnchors(): \Closure |
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{ |
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$replacement = '<a href="#" style="display: none;" name="$1"></a>'; |
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return function (string $body) use ($replacement) { |
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return preg_replace('/<a.+?name="(.*?)".*?>.*?<\/a>/isu', $replacement, $body); |
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}; |
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} |
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/** |
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* Удаляет из документа заголовки первого уровня, находящиеся в самом начале статьи. |
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* |
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* @return \Closure |
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*/ |
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private function removeDocumentTitle(): \Closure |
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{ |
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return function (string $body) { |
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return preg_replace('/^[\s\n]*?#\s+?.*?\n/isu', '', $body); |
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}; |
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} |
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} |
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LaravelRUS /
laravel.ru
