Module:ReferenceCleaner

Documentation for this module may be created at Module:ReferenceCleaner/doc

local Class = require('Module:Class')

local ReferenceCleaner = {}

function ReferenceCleaner.clean(dateWithRef)
	if dateWithRef == nil then
		return ''
	end

	-- due to '-' and '?' being part of the 'magic' characters for patterns
	-- we have to escape them with '%'
	dateWithRef = dateWithRef:gsub('%-%?%?', '-01')
	dateWithRef = dateWithRef:gsub('%-XX', '-01')
	local correctDate = string.match(dateWithRef, '(%d+-%d+-%d+)')
	if correctDate then
		return correctDate
	end

	return ''
end

function ReferenceCleaner.cleanNumber(numberWithRef)
	if numberWithRef == nil then
		return ''
	end

	local correctNumber = string.match(numberWithRef, '(%d+)')
	if correctNumber then
		return correctNumber
	end

	return ''
end

return Class.export(ReferenceCleaner, {frameOnly = true})