Module:ReferenceCleaner

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})