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モジュール:サンドボックス/Ef3/BananasArgs

モジュールの解説[作成]
-- Sample Module demonstrating how to access arguments.
-- For more about the Frame object, see http://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Frame_object
-- Unit tests at Module:BananasArgs/testcases
 
return {
	-- No arguments, used like: {{#invoke:BananasArgs|hello_world}}
	hello_world = function()
		return "Hello, world!"
	end,
	
	-- One argument, used like: {{#invoke:BananasArgs|hello|Fred}} 
	hello = function(frame)
		local name = frame.args[1] -- in this example, args[1] is the word Fred 
		return "Hello, " .. name .. "!" -- .. name .. replace by the word Fred
	end,
	
	-- Two arguments, used like: {{#invoke:BananasArgs|add|5|3}}
	add = function(frame)
		local num1 = tonumber(frame.args[1])
		local num2 = tonumber(frame.args[2])
		return num1 + num2
	end,
 
	-- Named arguments, used like: {{#invoke:BananasArgs|count_fruit|bananas=5|apples=3}}
	count_fruit = function(frame)
		local num_bananas = frame.args.bananas
		local num_apples = frame.args.apples
		return 'I have ' .. num_bananas .. ' bananas and ' .. num_apples .. ' apples'
	end,
	 
	-- Mixing regular args with named args and optional named args
	-- Used like: {{#invoke:BananasArgs|has_fruit|Fred|bananas=5|cherries=7}}
	has_fruit = function(frame)
		local name = frame.args[1]
		local num_bananas = frame.args.bananas
		local num_apples = frame.args.apples
		local num_cherries = frame.args.cherries
		
		local result = name .. ' has:'
		if num_bananas then result = result .. ' ' .. num_bananas .. ' bananas' end
		if num_apples then result = result .. ' ' .. num_apples .. ' apples' end
		if num_cherries then result = result .. ' ' .. num_cherries .. ' cherries' end
		return result
	end,
 
	-- Iterating over args, used like: {{#invoke:BananasArgs|custom_fruit|pineapples=10|kiwis=5}}
	custom_fruit = function(frame)
		local result = 'I have:'
		for name, value in pairs(frame.args) do
			result = result .. ' ' .. value .. ' ' .. name
		end
		return result
	end,
	
	-- Iterating over args with separate mandatory args
	-- Used like: {{#invoke:BananasArgs|custom_fruit_2|Fred|pineapples=10|kiwis=5}}
	custom_fruit_2 = function(frame)
		local name = frame.args[1]
		local result = name .. ' has:'
		for name, value in pairs(frame.args) do
			if name ~= 1 then
				result = result .. ' ' .. value .. ' ' .. name
			end
		end
		return result
	end,
	-- Iterating over args, used like: {{#invoke:BananasArgs|custom_fruit|pineapples=10|kiwis=5}}
	dump = function(frame)
		return mw.dumpObject(frame)
	end
}