Difference between revisions of "Module:Check for unknown parameters"

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(include non-blank positional in the default, but excluded blank positional in the default)
(reduce REVISIONID checks per thread at https://en.wikipedia.org/w/index.php?title=Wikipedia:Village_pump_%28technical%29&oldid=725747331#Preview-only_template_warnings_using_REVISIONID_magic_word)
Line 21: Line 21:
 
local preview = frame.args['preview']
 
local preview = frame.args['preview']
   
 
local values = {}
 
local res = {}
 
local res = {}
 
local regexps = {}
 
local regexps = {}
local comments = {}
 
local commentstr = ''
 
 
local ispreview = frame:preprocess( "{{REVISIONID}}" ) == "" and 1 or 0
 
   
 
-- create the list of known args, regular expressions, and the return string
 
-- create the list of known args, regular expressions, and the return string
Line 41: Line 38:
 
elseif preview == nil then
 
elseif preview == nil then
 
preview = unknown
 
preview = unknown
end
 
if ispreview == 1 then
 
unknown = preview
 
ignoreblank = false
 
end
 
 
-- adds one result to the output tables
 
local function addresult(k)
 
if k == '' then
 
-- Fix odd bug for | = which gets stripped to the empty string and
 
-- breaks category links
 
k = ' '
 
end
 
local r = unknown:gsub('_VALUE_', k)
 
table.insert(res, r)
 
table.insert(comments, '"' .. k .. '"')
 
 
end
 
end
   
Line 71: Line 52:
 
if not knownflag and ( not ignoreblank or isnotempty(v) ) then
 
if not knownflag and ( not ignoreblank or isnotempty(v) ) then
 
k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
 
k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
addresult(k)
+
table.insert(values, k)
 
end
 
end
 
elseif type(k) == 'number' and
 
elseif type(k) == 'number' and
Line 77: Line 58:
 
( showblankpos or isnotempty(v) )
 
( showblankpos or isnotempty(v) )
 
then
 
then
addresult(k)
+
table.insert(values, k)
 
end
 
end
 
end
 
end
   
 
-- add resuls to the output tables
if #comments > 0 then
 
 
if #values > 0 then
commentstr = '<!-- Module:Check for unknown parameters results: ' ..
 
 
if frame:preprocess( "{{REVISIONID}}" ) == "" then
table.concat(comments, ', ') .. '-->'
 
 
unknown = preview
 
end
  +
for k, v in pairs(values) do
 
if v == '' then
 
-- Fix odd bug for | = which gets stripped to the empty string and
 
-- breaks category links
 
v = ' '
 
end
 
local r = unknown:gsub('_VALUE_', v)
 
table.insert(res, r)
 
end
 
end
 
end
  +
 
return table.concat(res) .. commentstr
+
return table.concat(res)
 
end
 
end
   

Revision as of 16:55, 17 June 2016

Documentation for this module may be created at Module:Check for unknown parameters/doc

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

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

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

	local values = {}
	local res = {}
	local regexps = {}

	-- create the list of known args, regular expressions, and the return string
	for k, v in pairs(args) do
		if type(k) == 'number' then
			v = trim(v)
			knownargs[v] = 1
		elseif k:find('^regexp[1-9][0-9]*$') then
			table.insert(regexps, '^' .. v .. '$')
		end
	end
	if isnotempty(preview) then 
		preview = '<div class="hatnote" style="color:red"><strong>Warning:</strong> ' .. preview .. ' (this message is shown only in preview).</div>'
	elseif preview == nil then
		preview = unknown
	end

	-- loop over the parent args, and make sure they are on the list
	for k, v in pairs(pargs) do
		if type(k) == 'string' and knownargs[k] == nil then
			local knownflag = false
			for i, regexp in ipairs(regexps) do
				if mw.ustring.match(k, regexp) then
					knownflag = true
					break
				end
			end
			if not knownflag and ( not ignoreblank or isnotempty(v) )  then
				k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
				table.insert(values, k)
			end
		elseif type(k) == 'number' and 
			knownargs[tostring(k)] == nil and
			( showblankpos or isnotempty(v) )
		then
			table.insert(values, k)
		end
	end

	-- add resuls to the output tables
	if #values > 0 then
		if frame:preprocess( "{{REVISIONID}}" ) == "" then
			unknown = preview
		end
		for k, v in pairs(values) do
			if v == '' then
			-- Fix odd bug for | = which gets stripped to the empty string and
			-- breaks category links
			v = ' '
			end
			local r =  unknown:gsub('_VALUE_', v)
			table.insert(res, r)
		end
	end

	return table.concat(res)
end

return p