Template:cheatsheet-key

Key

Based on Perl's standard quantifiers:

bold {1}	MUST be present exactly once
italic*	OPTIONAL, and MAY occur more than once
+	MUST be present, and MAY occur more than once
?	OPTIONAL, but MUST NOT occur more than once
[square brackets]	list of common values
(parentheses)	data format
#	comment
!	awaiting documentation