Modul:scripts/templates

This module provides access to Module:scripts from templates, so that they can make use of the information stored there.

Exported functions

exists

{{#invoke:scripts/templates|exists|(script code)}}

Check whether a script code exists and is valid. It will return "1" if the script code exists, and the empty string "" if it does not.

This is rarely needed, because a script error will result when someone uses a code that is not valid, so you do not need this just to check for errors. However, in case you need to decide different actions based on whether a certain parameter is a script code or something else, this function can be useful.

getByCode

{{#invoke:scripts/templates|getByCode|(script code)|(item to look up)|(index)}}

Queries information about a script code.

• The script code should be one of the codes that is defined in Module:scripts data. If it is missing or does not exist, the result will be a script error.
• The item is the name of one of the pieces of data that is stored for a script, such as getCanonicalName or getCategoryName. If no item has been provided, the result will be a script error.
• The index is optional, and is used for items that are lists, such as getAllNames. It selects which item in the list to return. On items that are single strings, like getCanonicalName, it has no effect. If no index is given, the default will be 1 (the first subitem). If an index is given that is higher than the number of items in the list, the result will be an empty string.

For example, to request the default (canonical) name of the script whose code is Latn:

{{#invoke:scripts/templates|getByCode|Latn|getCanonicalName}}

• Result: Latiensch

To request its second name, if any:

{{#invoke:scripts/templates|getByCode|Latn|getAllNames|2}}

• Result: Latin

See also

• Module:JSON data — for exporting all the data at once

---

local export = {}

function export.exists(frame)
	local args = frame.args
	local sc = args[1] or error("Script code has not been specified. Please pass parameter 1 to the module invocation.")
	
	sc = require("Modul:scripts").getByCode(sc)
	
	if sc then
		return "1"
	else
		return ""
	end
end

function export.getByCode(frame)
	local args = frame.args
	local sc = args[1] or error("Script code (parameter 1) has not been specified.")
	local itemname = args[2] or error("Function to call (parameter 2) has not been specified.")
	
	sc = require("Modul:scripts").getByCode(sc) or error("The script code '" .. sc .. "' is not valid.")
	
	-- The item that the caller wanted to look up
	if itemname == "getCanonicalName" then
		return sc:getCanonicalName()
	elseif itemname == "getAllNames" then
		local index = args[3]; if index == "" then index = nil end
		index = tonumber(index or error("Numeric index of the desired item in the list (parameter 3) has not been specified."))
		return sc:getAllNames()[index] or ""
	elseif itemname == "getCategoryName" then
		return sc:getCategoryName()
	elseif itemname == "countCharacters" then
		local text = args[3] or ""
		return sc:countCharacters(text)
	else
		error("Requested invalid item name \"" .. itemname .. "\".")
	end
end

return export