Parse event description as markdown.

[rashfael]

To allow for formatting and clickable links, parse the event description as markdown.

[rixx]

Should involve a list of allowed HTML elements and sending everything through bleach.

[rashfael]

Disallowing raw html in markdown should be enough.

[rixx]

It's not that easy, no. Markdown in itself permits HTML (as it is a superset of HTML), and therefore most HTML parsers don't have an option to disable html input entirely. But since user submitted data that is displayed to other users as HTML should be bleached regardless, it's no extra work. Just wanted to make sure we don't forget about this.

[rashfael]

What markdown parser would you be using? Marked for example has a "sanitize" option that ignores any source html.