Processing instructions have the same semantics as in XML: they control the paths taken when processing a page. Processing instructions are lines that start with a "#" character followed by a keyword and optionally some arguments. Two consecutive hash marks at the start of a line are a comment that won't appear in the processed page.
Processing instructions this wiki knows of:
- ## any-text: comment
- #FORMAT format-specifier: defines the input format for this page, known formats are:
- Wiki: default MoinMoin wiki markup
- plain: normal plain text
- html: normal html text
- StructuredText ( not implemented)
- #REDIRECT pagename: redirect to a different page (see PageRedirect)
All PIs must appear at the very start of a page. An exception are comment PIs, those may appear within a wiki page (but obviously not in pages using other formats).