Tim Koschuetzki has a new tutorial posted today for CakePHP users out there - it's a method for transforming HTML content into Textile markup via the TextileHelper CakePHP helper.
For a current project of mine I had to find a way to decode html into textile markup. Why? Because we are using tinyMCE to process our textareas as wyciwyg editors, which generate HTML. However, we want all output controlled via textile to allow only the textile tags. Yes, we could do it with strip_tags(), but textile is much more elegant. Plus, it was a requirement by the client. Come on and find out how to detextile html.
Code is included to work on the transformation: detextile, processTag, detextile_process_glyphs and detextile_process_lists. An example is included as well, showing how to input a block of HTML content to be "textile-ized". The full code is available for cutting and pasting at the bottom of the post.