(?P<escape>!)?				# Match a ! escape for later removal
(?:
  (?:
	\#(?P<ticket>\d+)									# Match #43
  | \[(?P<changeset>\d+)\]								# Match [1652]
  | \{(?P<report>\d+)\}									# Match {4}
  | \br(?P<rchangeset>\d+)\b							# Match r123
  | \[(?P<log>\d+:\d+)\]								# Match [1:3]
  | \br(?P<rlog>\d+:\d+)\b								# Match r1:3

  | \blog:(?P<flog>[^\s<>]*[a-zA-Z0-9=])				# Match log:trunk#1:3
  | \bticket:(?P<fticket>[^\s<>]*[a-zA-Z0-9=])			# Match ticket:43
  | \bchangeset:(?P<fchangeset>[^\s<>]*[a-zA-Z0-9=])	# Match changeset:1652
  | \breport:(?P<freport>[^\s<>]*[a-zA-Z0-9=])			# Match report:4
  | \bmilestone:(?P<fmilestone>[^\s<>]*[a-zA-Z0-9=])	# Match milestone:1.0
  | \bwiki:(?P<fwiki>[^\s<>]*[a-zA-Z0-9=])				# Match wiki:foo
  | \bsource:(?P<fsource>[^\s<>]*[a-zA-Z0-9=])			# Match source:trunk/COPYING
  |
	\[
	  (?:												# Match [foo bar] links
		log:(?P<llog>[^\s]*[a-zA-Z0-9=])
	  | ticket:(?P<lticket>[^\s]*[a-zA-Z0-9=])
	  | changeset:(?P<lchangeset>[^\s]*[a-zA-Z0-9=])
	  | report:(?P<lreport>[^\s]*[a-zA-Z0-9=])
	  | milestone:(?P<lmilestone>[^\s]*[a-zA-Z0-9=])
	  | wiki:(?P<lwiki>[^\s]*[a-zA-Z0-9=])
	  | source:(?P<lsource>[^\s]*[a-zA-Z0-9=])
	  )
	  \s
	  (?P<link>[^]\n\r]*)
	\]
  )