diff -urN text_wiki_mediawiki.old/Text/Wiki/Parse/Mediawiki/Emphasis.php text_wiki_mediawiki/Text/Wiki/Parse/Mediawiki/Emphasis.php
--- text_wiki_mediawiki.old/Text/Wiki/Parse/Mediawiki/Emphasis.php      2017-11-17 19:49:10.165800200 +0000
+++ text_wiki_mediawiki/Text/Wiki/Parse/Mediawiki/Emphasis.php  2017-11-17 19:59:14.706761200 +0000
@@ -52,7 +52,7 @@
         $lines = explode("\n", $this->wiki->source);
         $this->wiki->source = '';
         foreach ($lines as $line) {
-            $this->wiki->source .= $this->process($line) . "\n";
+            $this->wiki->source .= $this->process_emphasis($line) . "\n";
         }
         $this->wiki->source = substr($this->wiki->source, 0, -1);
     }
@@ -70,7 +70,7 @@
      * @param string $text a line from $this->wiki->source
      * @return string $output the source line with the wiki syntax replaced by tokens
      */
-    function process($text) {
+    function process_emphasis($text) {
         $arr = preg_split("/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
         if (count($arr) == 1) {
             return $text;