Module:Check for deprecated parameters/sandbox explained

-- This module may be used to compare the arguments passed to the parent-- with a list of arguments, returning a specified result if an argument is-- on the listlocal p =

local function trim(s) return s:match('^%s*(.-)%s*$')end

local function isnotempty(s) return s and trim(s) ~= end

function p.check (frame) -- create the table of deprecated values and their matching new value local args = frame.args local dep_values = for k, v in pairs(args) do if not (k

'ignoreblank' or k

'preview' or k

'deprecated') then dep_values[k] = v end end

-- loop over the parent args and see if any are deprecated local values = local ignoreblank = isnotempty(frame.args['ignoreblank']) local pargs = frame:getParent.args for k, v in pairs(pargs) do if dep_values[k] and (ignoreblank or v ~= ) then table.insert(values, k) end end -- add results to the output tables local res = if #values ~= 0 then local preview = frame.args['preview'] or 'Page using with deprecated parameter _VALUE_' if isnotempty(preview) then preview = require('Module:If preview')._warning end -- Kind of dangerous to trust that this is never nil, but I guess it's -- preferable to display that the use of the module is broken rather than -- have some sort of tracking category for pages which have an unknown -- parent tracking template. local category = frame.args['category'] for k, v in pairs(values) do local c = category:gsub('_VALUE_', v) table.insert(res, c) if v

then -- Fix odd bug for | = which gets stripped to the empty string -- and breaks category links v = ' ' end local p = preview:gsub('_VALUE_', '"'..v..'". Replace with "'..dep_values[v]..'".' ) table.insert(res, p) end end

return table.concat(res)end

return p