Allow includable special pages to be parameterized using wiki syntax resembling named temlate parameters like this:
{{Special:Allpages|namespace=2|from=Alfonso Louise|to=Mattias Pasta}}
Parameter names should be identical to those already used on the command line.
All that the wiki syntax parser needs to do is, process the parameter string into a parameter block format that is identical to that which the special page expects anyways, and call the special page giving indication that a parameter block is acutally present.
Note, that this is already working: {{Special:PrefixIndex/User:Alfonso_Louis}} - so we can pass one parameter at times, when a special page allows this type of call, but not more than this.
Version: 1.14.x
Severity: enhancement