• One-pass parsing. Call it a regex/statemachine hybrid.
• Complete 1.0 implementation, plus...
  • Plugins
  • Definition lists
  • Indented Paragraphs
  • Monospace, superscript, subscript, underline
  • Trademark, Registered Trademark, Copyright, ellipsis, and dash special characters
• Custom link altering function (prefix base URL, port, etc)
• Tag customization for CSS, etc

It's grammar based, so could be easily adapted to parsing other dialects or (more easily) for converting Creole to other dialects.

Examples from the test directory of the distribution:

block.markup	block.html
inline.markup	inline.html
escape.markup	escape.html
specialchars.markup	specialchars.html

check it out