Some ^^superscript^^ text
Then empty superscript: ^^^^
[[sup]]Superscript[[/sup]] block
[[sup]]Superscript
paragraph[[/sup]]
[[sup]]Nested [[b]]superscript[[/b]][[/sup]]
Empty block: [[sup]][[/sup]]
Aliases: [[super]]super[[/super]] and [[superscript]]superscript[[/superscript]]