I am taking user input as either wiki formatted text (creole) or possibly markdown formatted text.
I was wondering if there are there any existing content types standard for this sort of text.
I was hoping for something like "text/wiki_creole" or "text/markdown".
EDIT
Looks like there are no standards. The best I could find was
text/x-web-markdown
text/x-web-textile
which seem to be commonly used. Other than that it seems it is not unusual to use vendor specific types too, GitHub uses formats like
application/vnd.github-issue.raw+json