format directive is supplied by the format
The directive allows formatting a chunk of text using any available page format. It takes two parameters. First is the type of format to use, ie the extension that would be used for a standalone file of this type. Second is the text to format.
For example, this will embed an otl outline inside a page using mdwn or some other format:
[[!format otl """ foo 1 2 bar 3 4 """]]
Note that if the highlight plugin is enabled, this directive can also be used to display syntax highlighted code. Many languages and formats are supported. For example:
[[!format perl """ print "hello, world\n"; """]]