Online PHP editor | rfc for luQ67

<?php function rewrite_relative_links($md, $page, $baselink = null) { if(!$baselink) $baselink = $page->getEntity()->getRelativeLink(); $re = '/ ([^\!]?) # exclude image format \[ (.*?) # link title (non greedy) \] $ (.*?) # link url (non greedy) $ /x'; preg_match_all($re, $md, $matches); // relative path (relative to module base folder), without the filename. // For "sapphire/en/current/topics/templates", this would be "templates" $relativePath = dirname($page->getRelativePath()); if($relativePath == '.') $relativePath = ''; // file base link $fileBaseLink = Director::makeRelative(dirname($page->getPath())); if($matches) { foreach($matches[0] as $i => $match) { $title = $matches[2][$i]; $url = $matches[3][$i]; // Don't process API links if(preg_match('/^api:/', $url)) continue; // Don't process absolute links (based on protocol detection) $urlParts = parse_url($url); if($urlParts && isset($urlParts['scheme'])) continue; // for images we need to use the file base path if(preg_match('/_images/', $url)) { $relativeUrl = Controller::join_links( Director::absoluteBaseURL(), $fileBaseLink, $url ); } else { // Rewrite public URL if(preg_match('/^\//', $url)) { // Absolute: Only path to module base $relativeUrl = Controller::join_links($baselink, $url); } else { // Relative: Include path to module base and any folders $relativeUrl = Controller::join_links($baselink, $relativePath, $url); } } // Resolve relative paths while(strpos($relativeUrl, '..') !== FALSE) { $relativeUrl = preg_replace('/\w+\/\.\.\//', '', $relativeUrl); } // Replace any double slashes (apart from protocol) $relativeUrl = preg_replace('/([^:])\/{2,}/', '$1/', $relativeUrl); // Replace in original content $md = str_replace( $match, sprintf('%s[%s](%s)', $matches[1][$i], $title, $relativeUrl), $md ); } } return $md; }

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