Index: extlink.js
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/extlink/extlink.js,v
retrieving revision 1.4.2.4
diff -u -r1.4.2.4 extlink.js
--- extlink.js	30 Sep 2008 01:55:59 -0000	1.4.2.4
+++ extlink.js	14 Mar 2009 04:54:59 -0000
@@ -17,6 +17,18 @@
   // 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
@@ -28,7 +40,7 @@
   $("a", context).each(function(el) {
     try {
       var url = this.href.toLowerCase();
-      if (url.indexOf('http') == 0 && !url.match(internal_link)) {
+      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) {
Index: extlink.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/extlink/extlink.module,v
retrieving revision 1.3.2.2
diff -u -r1.3.2.2 extlink.module
--- extlink.module	30 Apr 2008 02:58:24 -0000	1.3.2.2
+++ extlink.module	14 Mar 2009 04:54:59 -0000
@@ -24,6 +24,8 @@
     'extTarget'     => variable_get('extlink_target', 0),
     'extClass'      => variable_get('extlink_class', 'ext'),
     'extSubdomains' => variable_get('extlink_subdomains', 1),
+    'extExclude'    => variable_get('extlink_exclude', ''),
+    'extInclude'    => variable_get('extlink_include', ''),
     'mailtoClass'   => variable_get('extlink_mailto_class', 'mailto'))), 'setting'
   );
   if (variable_get('extlink_class', 'ext') == 'ext' || variable_get('extlink_mailto_class', 'mailto') == 'mailto') {
@@ -64,6 +66,48 @@
     '#default_value' => variable_get('extlink_target', 0),
     '#description' => t('Should all external links be opened in a new window?'),
   );
-  
+
+  $patterns = array(
+    '<em>(example\.com)</em> ' . t('Matches example.com.'),
+    '<em>(example\.com)|(example.net)</em> ' . t('Multiple patterns can be strung together by using a pipe. Matches example.com OR example.net.'),
+    '<em>(links/goto/[0-9]+/[0-9]+)</em> ' . t('Matches links that go through the <a href="http://drupal.org/project/links">Links module</a> redirect.'),
+  );
+
+  $wildcards = array(
+    '<em>.</em> ' . t('Matches any character.'),
+    '<em>?</em> ' . t('The previous character or set is optional.'),
+    '<em>\d</em> ' . t('Matches any digit (0-9).'),
+    '<em>[a-z]</em> ' . t('Brackets may be used to match a custom set of characters. This matches any alphabetic letter.'),
+  );
+
+  $form['patterns'] = array(
+    '#tree' => FALSE,
+    '#type' => 'fieldset',
+    '#title' => t('Pattern matching'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+    '#description' =>
+      '<p>' . t('External links uses patterns (regular expressions) to match the "href" property of links.') . '</p>' .
+      t('Here are some common patterns.') .
+      theme('item_list', $patterns) .
+      t('Common special characters:') .
+      theme('item_list', $wildcards) .
+      '<p>' . t('All special characters (<em>^ $ . ? ( ) | * +</em>) must also be escaped with backslashes. Patterns are not case-sensitive. Any <a href="http://www.javascriptkit.com/javatutors/redev2.shtml">pattern supported by JavaScript</a> may be used.') . '</p>',
+  );
+
+  $form['patterns']['extlink_exclude'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Exclude links matching the pattern'),
+    '#default_value' => variable_get('extlink_exclude', ''),
+    '#description' => t('Enter a regular expression for links that you wish to exclude from being considered external.'),
+  );
+
+  $form['patterns']['extlink_include'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Include links matching the pattern'),
+    '#default_value' => variable_get('extlink_include', ''),
+    '#description' => t('Enter a regular expression for internal links that you wish to be considered external.'),
+  );
+
   return system_settings_form($form);
 }
\ No newline at end of file