Add support for --exclude option

Author: sandermarechal

phpctags

@@ -15,6 +15,7 @@ if (is_dir($vendor = __DIR__ . '/vendor')) {
 $options = getopt('af:R',array(
     'append::',
     'debug',
+    'exclude:',
     'excmd::',
     'fields::',
     'format::',
@@ -83,6 +84,10 @@ if (isset($options['R'])) {
             continue;
         }
 
+        if (isset($options['exclude']) && false !== strpos($filename, $options['exclude'])) {
+            continue;
+        }
+
         $result .= $ctags->export($filename, $options);
     }
 } else {