bryan over at Pipedot has released the source code for Pipecode, the software running pipedot.
Pipecode is written in PHP and the code is using the GPLv3.
my sarcasm tagIt has been noted that I often miss the mirth in a situation, so forgive me if that is the case.
OTOH, if you are completely serious, tag types that are not explicitly supported are stripped away by the Comments engine.If you want < (less than) and > (greater than) to appear with your fictional tags, you must substitute some markup. [google.com]