registry = $registry; $this->layout = $layout; } public function afterToHtml(\Zemez\Blog\Block\Post\View $subject, string $result): string { // Skip subclasses that extend View (their interceptors are instanceof the subclass) if ($subject instanceof \Zemez\Blog\Block\Post\View\Comments || $subject instanceof \Zemez\Blog\Block\Post\View\Posts ) { return $result; } $post = $this->registry->registry('tm_blog_post'); if (!$post || !$post->getId()) { return $result; } $groupId = (int)$post->getData('linking_group_id'); if (!$groupId) { return $result; } $blockName = 'autogedal.blog.linking.' . $post->getId(); if ($this->layout->getBlock($blockName)) { return $result; } $blockHtml = $this->layout->createBlock(LinkingGroup::class, $blockName)->toHtml(); if (!$blockHtml) { return $result; } // Inject at ~50% of article paragraphs, strictly within post-text. // Regex allows extra classes/attributes and whitespace variations in the marker divs. $postTextPos = false; $postDataPos = false; $postTextEnd = 0; if (preg_match('/]+class=["\'][^"\']*\bpost-text\b[^"\']*["\'][^>]*>/i', $result, $m, PREG_OFFSET_CAPTURE)) { $postTextPos = $m[0][1]; $postTextEnd = $postTextPos + strlen($m[0][0]); } if (preg_match('/]+class=["\'][^"\']*\bpost-data\b[^"\']*["\'][^>]*>/i', $result, $m, PREG_OFFSET_CAPTURE)) { $postDataPos = $m[0][1]; } if ($postTextPos !== false && $postDataPos !== false) { $contentStart = $postTextEnd; // Mask table contents so

tags inside are not counted or targeted. // Replacement is same-length whitespace so all offsets stay valid against $result. $masked = preg_replace_callback( '//i', static fn($m) => str_repeat(' ', strlen($m[0])), $result ); $section = substr($masked, $contentStart, $postDataPos - $contentStart); $pCount = substr_count($section, '

'); $targetP = max(1, (int)ceil($pCount / 2)); $offset = $contentStart; for ($i = 0; $i < $targetP; $i++) { $found = strpos($masked, '

', $offset); if ($found === false || $found >= $postDataPos) { break; } $offset = $found + 4; } if ($offset > $contentStart) { return substr($result, 0, $offset) . $blockHtml . substr($result, $offset); } return substr($result, 0, $postDataPos) . $blockHtml . substr($result, $postDataPos); } return $result . $blockHtml; } }