Module:Template wrapper positional

Module documentationviewedithistorypurge

This is a simplified version of Module:Template wrapper that handles positional arguments better.

Syntax: {{#invoke:Template wrapper positional|main|_template=template|_offset=offset|...extra_args}}

All args other than "_template" and "_offset" are passed unchanged to the parent template, including positional ones. Any numbered arguments are subtracted by the offset param.

This has two sets of use cases. The first is for a template to consume one (or more) positional params and forward the others somewhere else:

For example, if Template:Foo said:

{{#invoke:Template wrapper positional|main|_template=Bar|_offset=1|baz={{{1}}}}}

,

{{foo|a|b|c|quux=123}}

would turn in to:

{{Bar|b|c|baz=a|quux=123}}

The second use case is for a template to modify a positional param and pass the rest unchanged (Module:Template wrapper can't do this since it ignores positional params from the frame). For example, if Template:Foo said:

{{#invoke:Template wrapper positional|main|_template=Bar|This is param 1: {{{1}}}}}

{{foo|a|b|c|quux=123}}

would turn in to:

{{Bar|This is param 1: a|b|c|quux=123}}

The above documentation is transcluded from Module:Template wrapper positional/doc. (edit | history)
Editors can experiment in this module's sandbox (create | mirror) and testcases (create) pages.
Subpages of this module.

local p = {}
function p.main(frame)
	local newArgs = {}
	local temp = frame.args["_template"]
	local offset = frame.args["_offset"] or 0
	for k, v in pairs(frame:getParent().args) do
		if type(k) == "number" then
			k = k - offset
		end
		newArgs[k] = v
	end
	for k, v in pairs(frame.args) do
		if k ~= "_template" and k ~= "_offset" then
			newArgs[k] = v
		end
	end
	if temp then
		return frame:expandTemplate{title=temp, args=newArgs}
	else
		error("_template arg is required")
	end
end
return p