Module:Variables

local Class = require('Module:Class')

local Variables = {}

---Stores a wiki-variable and returns the empty string ---@param name string Key of the wiki-variable ---@param value string Value of the wiki-variable ---@return string #always the empty string function Variables.varDefine(name, value) return mw.ext.VariablesLua.vardefine(name, value) end

---Stores a wiki-variable and returns the stored value ---@param name string Key of the wiki-variable ---@param value string Value of the wiki-variable ---@return string function Variables.varDefineEcho(name, value) return mw.ext.VariablesLua.vardefineecho(name, value) end

---Gets the stored value of a wiki-variable ---@generic T ---@param name string Key of the wiki-variable ---@param default T fallback value if wiki-variable is not defined ---@return string|T ---@overload fun(name: string):string? function Variables.varDefault(name, default) local val = mw.ext.VariablesLua.var(name) return (val ~= and val ~= nil) and val or default end

--- ---@param ... string wiki-variable keys ---@return string function Variables.varDefaultMulti(...) --pack varargs local varargs = { n = select('#', ...), ... }

for i = 1, varargs.n do local val = Variables.varDefault(varargs[i]) if val then return val end end

-- If even the last var didn't bring anything return the last argument return varargs[varargs.n] end

return Class.export(Variables, {removeBlanks = false})