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2014-12-14T06:47:12Z

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-- 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
-- not on the list
local p = {}

local function isnotempty(s)
return s and s:match( '^%s*(.-)%s*$' ) ~= ''
end

function p.check (frame)
local args = frame.args
local pargs = frame:getParent().args
local ignoreblank = isnotempty(frame.args['ignoreblank'])
local knownargs = {}
local unknown = 'Found _VALUE_, '

local res = {}

-- create the list of known args, and the return string
for k, v in pairs(args) do
if type(k) == 'number' then
v = mw.ustring.gsub(v, '^%s*(.-)%s*$', '%1')
knownargs[v] = 1
else
if (k == 'unknown' and type(v) == 'string') then
unknown = v
end
end
end

-- loop over the parent args, and make sure they are on the list
for k,v in pairs(pargs) do
if (knownargs[k] == nil and type(k) == 'string') then
if( (not ignoreblank) or (ignoreblank and isnotempty(v)) ) then
k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
local r = mw.ustring.gsub(unknown, '_VALUE_', k)
table.insert(res, r)
end
end
end

return table.concat(res)
end

return p

Module:Check for unknown parameters - Revision history

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