[Michele Tomaiuolo] is working on a [Creole extension|http://pear.php.net/pepr/pepr-proposal-show.php?id=446] for the [PEAR Text_Wiki package|http://pear.php.net/package/Text_Wiki/]. You can already [see it in action|http://www.ce.unipr.it/~tomaiuol/creole_example.php].

Apart from all the elements defined in Creole 0.5, it experimentally supports:

* Automatic inlining of images when links end with .jpg etc.
* [Quotation] (e-mail style; remarks/comments start with ":")
* [Address] (or [Signature]: http://www.w3.org/TR/html4/struct/global.html#h-7.5.6 - start a line with two dashes)
* [Superscript] (ordinals as 1st, 1ère etc are also automatically superscripted)
* [Subscript] (enclose in ",,")
* [Underline] (enclose in "{{{__}}}")
* [Hyphen List Markup Proposal] (items starting with a number require a space after the hyphen)
* [Footnote] (enclose a number in square brackets, then start a line with the same sequence)

It also has a full renderer, to convert documents from other wiki syntaxes to Creole.

[Text_Wiki|http://pear.php.net/package/Text_Wiki/] is used by [Yawiki|http://wiki.ciaweb.net/yawiki/index.php?wiki=Yawiki], but it can be easily integrated into other php software. For example, it has been used to create a [Drupal filter|http://drupal.org/project/pearwiki_filter].

Note. Single newlines can be handled as in most wikis (ignored - default) or as in word-processors (meaning a paragraph break).