function extlinkAttach(context) { // Strip the host name down, removing subdomains or www. var host = window.location.host.replace(/^(([^\/]+?\.)*)([^\.]{4,})((\.[a-z]{1,4})*)$/, '$3$4'); var subdomain = window.location.host.replace(/^(([^\/]+?\.)*)([^\.]{4,})((\.[a-z]{1,4})*)$/, '$1'); // Determine what subdomains are considered internal. if (Drupal.settings.extlink.extSubdomains) { var subdomains = "([^/]*)?"; } else if (subdomain == 'www.' || subdomain == '') { var subdomains = "(www\.)?"; } else { var subdomains = subdomain.replace(".", "\."); } // Build regular expressions that define an internal link. var internal_link = new RegExp("^https?://" + subdomains + host, "i"); // Extra internal link matching. var extInclude = false; if (Drupal.settings.extlink.extInclude) { extInclude = new RegExp(Drupal.settings.extlink.extInclude.replace(/\\/, '\\')); } // Extra external link matching. var extExclude = false; if (Drupal.settings.extlink.extExclude) { extExclude = new RegExp(Drupal.settings.extlink.extExclude.replace(/\\/, '\\')); } // Find all links which are NOT internal and begin with http (as opposed // to ftp://, javascript:, etc. other kinds of links. // When operating on the 'this' variable, the host has been appended to // all links by the browser, even local ones. // In jQuery 1.1 and higher, we'd use a filter method here, but it is not // available in jQuery 1.0 (Drupal 5 default). var external_links = new Array(); var mailto_links = new Array(); $("a:not(." + Drupal.settings.extlink.extClass + ", ." + Drupal.settings.extlink.mailtoClass + ")", context).each(function(el) { try { var url = this.href.toLowerCase(); if (url.indexOf('http') == 0 && (!url.match(internal_link) || (extInclude && url.match(extInclude))) && !(extExclude && url.match(extExclude))) { external_links.push(this); } else if (url.indexOf('mailto:') == 0) { mailto_links.push(this); } } // IE7 throws errors often when dealing with irregular links, such as: // Empty tags. // example User:pass syntax. catch(error) { return false; } }); if (Drupal.settings.extlink.extClass) { // Apply the "ext" class to all links not containing images. if (parseFloat($().jquery) < 1.2) { $(external_links).not('[img]').addClass(Drupal.settings.extlink.extClass).each(function() { if ($(this).css('display') == 'inline') $(this).after(''); }); } else { $(external_links).not($(external_links).find('img').parents('a')).addClass(Drupal.settings.extlink.extClass).each(function() { if ($(this).css('display') == 'inline') $(this).after(''); }); } } if (Drupal.settings.extlink.mailtoClass) { // Apply the "mailto" class to all mailto links not containing images. if (parseFloat($().jquery) < 1.2) { $(mailto_links).not('[img]').addClass(Drupal.settings.extlink.mailtoClass).each(function() { if ($(this).css('display') == 'inline') $(this).after(''); }); } else { $(mailto_links).not($(mailto_links).find('img').parents('a')).addClass(Drupal.settings.extlink.mailtoClass).each(function() { if ($(this).css('display') == 'inline') $(this).after(''); }); } } if (Drupal.settings.extlink.extTarget) { // Apply the target attribute to all links. $(external_links).attr('target', Drupal.settings.extlink.extTarget); } if (Drupal.settings.extlink.extAlert) { // Add pop-up click-through dialog. $(external_links).click(function(e) { return confirm(Drupal.settings.extlink.extAlertText); }); } } Drupal.behaviors.extlink = function(context){ extlinkAttach(context); }