Module:Common

Additional functions that are common to other modules. Although they could be called into templates the overhead call into lua would generally greater than using a built in mediawiki parser function where one exists.

When calling in to another module, use local com = require( "Module:Common"). This will ensure consistency between modules.

---

--[[ 
	Additional functions that are common to other modules. As they cannot be
	outside of modules there is no invoke level function calls.
]]

local function trim(object)
	--Use of while instead of if incase multiple whitespaces are present.
	while string.sub(object, 1, 1) == ' ' do 
		object = string.sub(object, 2)
	end
	
	while string.sub(object, string.len(object)) == ' ' do
		object = string.sub(object, 1, string.len(object) - 1)
	end
	
	return object
end

function exists(object)
	if object == nil or object == '' then
		return false
	else
		return true
	end
end