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Module:Parameter names example

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-- This module implements {{parameter names example}}.
-- @author: FishTank
 
local p = {}
 
local function makeParam(s)
	local lb = '{'
	local rb = '}'
	return lb:rep(3) .. s .. rb:rep(3)
end
 
local function italicize(s)
	return "''" .. s .. "''"
end
 
local function plain(s)
	return s
end
 
function p._main(args, frame)
	-- Find how we want to format the arguments to the template.
	local formatFunc
	if args._display == 'italics' or args._display == 'italic' then
		formatFunc = italicize
	elseif args._display == 'plain' then
		formatFunc = plain
	else
		formatFunc = makeParam
	end
 
	-- Build the table of template arguments.
	local targs = {}
	for k, v in pairs(args) do
		if type(k) == 'number' then
			targs[v] = formatFunc(v)
		elseif not k:find('^_') then
			targs[k] = v
		end
	end
 
	-- Find the template name.
	local template
	if args._template then
		template = args._template
	else
		local currentTitle = mw.title.getCurrentTitle()
		if currentTitle.prefixedText:find('/sandbox$') then
			template = currentTitle.prefixedText
		else
			template = currentTitle.basePageTitle.prefixedText
		end
	end
 
	-- Call the template with the arguments.
	frame = frame or mw.getCurrentFrame()
	local success, result = pcall(
		frame.expandTemplate,
		frame,
		{title = template, args = targs}
	)
	if success then
		return result
	else
		return ''
	end
end
 
function p.main(frame)
	local args = require('Dev:Arguments').getArgs(frame)
	return p._main(args, frame)
end
 
return p

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