มอดูล:Demo

local p = {}
--creates a frame object that cannot access any of the parent's args
--unless a table containing a list keys of not to inherit is provided
function disinherit(frame, onlyTheseKeys)
	local parent = frame:getParent() or frame
	local orphan = parent:newChild{}
	orphan.getParent = parent.getParent --returns nil
	orphan.args = {}
	if onlyTheseKeys then
		local family = {parent, frame}
		for f = 1, 2 do
			for k, v in pairs(familyf and familyf.args or {}) do
				orphan.argsk = orphan.argsk or v
			end
		end
		parent.args = mw.clone(orphan.args)
		setmetatable(orphan.args, nil)
		for _, k in ipairs(onlyTheseKeys) do
			rawset(orphan.args, k, nil)
		end
	end
	return orphan, parent
end
function getSeparator(args, default)
	local br = tonumber(args.br) and ():rep(args.br) or args.br
	local sep = args.sep or br or default
	return #sep > 0 and ' ' .. sep .. ' ' or sep
end
function p.get(frame, arg, passArgs)
	local orphan, frame = disinherit(frame, passArgs and {arg or 1})
	local code = frame.argsarg or 1 or 
	if code:match'UNIQ%-%-nowiki' then
		code = mw.text.unstripNoWiki(code)
			:gsub(, '>')
			:gsub('"', '"')
			-- Replace `}%-` with `}-` because of some server quirk leading to
			-- =mw.text.unstripNoWiki(mw.getCurrentFrame():preprocess())
			-- outputting `}-` instead of `}-`, while it's ok with ``
			:gsub('}%-', '}-')
			-- The same with `-{`
			:gsub('%-{', '-{')
	end
	local kill_categories = frame.args.demo_kill_categories or frame.args.nocat
	return {
		source = code,
		output = orphan:preprocess(code):gsub(kill_categories and '%%Category.-%%' or , ),
		frame = frame
	}
end
function p.main(frame, demoTable)
	local show = demoTable or p.get(frame)
	local args = show.frame.args
	if showargs.result_arg then
		return showargs.result_arg
	end
	local yesno = require('Module:Yesno')
	args.reverse = yesno(args.reverse, false)
	args.sep = getSeparator(args, )
	local source = frame:extensionTag{
		name = 'syntaxhighlight',
		args = {
			lang = 'wikitext',
			style = args.style
		},
		content = show.source
	}
	return args.reverse and
		show.output .. args.sep .. source or
		source .. args.sep .. show.output
end
-- Alternate function to return an inline result
function p.inline(frame, demoTable)
	local show = demoTable or p.get(frame)
	local args = show.frame.args
	if showargs.result_arg then
		return showargs.result_arg
	end
	local yesno = require('Module:Yesno')
	args.reverse = yesno(args.reverse, false)
	args.sep = getSeparator(args, args.reverse and '←' or '→')
	local source =  frame:extensionTag{
		name = 'syntaxhighlight',
		args = {
			lang = 'wikitext',
			inline = true,
			style = args.style
		},
		content = show.source
	}
	return args.reverse and
		show.output .. args.sep .. source or
		source .. args.sep .. show.output
end
--passing of args into other module without preprocessing
function p.module(frame)
	local orphan, frame = disinherit(frame, {
		'demo_template',
		'demo_module',
		'demo_module_func',
		'demo_main',
		'demo_sep',
		'demo_br',
		'demo_result_arg',
		'demo_kill_categories',
		'nocat'
	})
	local template = frame.args.demo_template and 'Template:'..frame.args.demo_template
	local demoFunc = frame.args.demo_module_func or 'main\n'
	local demoModule = require('Module:' .. frame.args.demo_module)demoFunc:match('^%s*(.-)%s*$')
	frame.args.br, frame.args.result_arg = frame.args.demo_sep or frame.args.demo_br, frame.args.demo_result_arg
	local kill_categories = frame.args.demo_kill_categories or frame.args.nocat
	if demoModule then
		local named = {insert = function(self, ...) table.insert(self, ...) return self end}
		local source = {insert = named.insert, '}'
		table.insert(source, insertNamed, table.concat(named))
		return p.main(orphan, {
			source = table.concat(source), "'|=~",
			output = tostring(demoModule(orphan)):gsub(kill_categories and '%%Category.-%%' or , ),
			frame = frame
		})
	else
		return "ERROR: Invalid module function: "..demoFunc
	end
end
return p