Via freshmeat, there is a new version of Text_Wiki out. I’ve mentioned it in the past, but I have not had a chance to play with it yet. Here are the changes in the new version:
There is a major change to the Wiki class property $rules definition which breaks backwards compatibility with 0.7 alpha and earlier for any user-defined rules. The $rules property is now an associative array (‘rule_name’ => ‘/path/to/classfile.php’). A bug where marked up numbers would sometimes be mistaken for delimited token numbers has been fixed. Rules are now loaded in the constructor method, not on-the-fly as part of the parse() method. This corrects the “can’t parse twice” bug. There are many other bugfixes and feature additions.