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

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Line 3: Line 3:
 
-- not on the list
 
-- not on the list
 
local p = {}
 
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)
 
function p.check (frame)
 
local args = frame.args
 
local args = frame.args
 
local pargs = frame:getParent().args
 
local pargs = frame:getParent().args
  +
local ignoreblank = isnotempty(frame.args['ignoreblank'])
 
  +
local showblankpos = isnotempty(frame.args['showblankpositional'])
 
local knownargs = {}
 
local knownargs = {}
local unknown = 'Found _VALUE_'
+
local unknown = frame.args['unknown'] or 'Found _VALUE_, '
  +
local preview = frame.args['preview']
 
  +
  +
local values = {}
 
local res = {}
 
local res = {}
  +
local regexps = {}
 
  +
-- create the list of known args, and the return string
+
-- create the list of known args, regular expressions, and the return string
 
for k, v in pairs(args) do
 
for k, v in pairs(args) do
 
if type(k) == 'number' then
 
if type(k) == 'number' then
  +
v = trim(v)
 
knownargs[v] = 1
 
knownargs[v] = 1
  +
elseif k:find('^regexp[1-9][0-9]*$') then
else
 
if (k == 'unknown' and type(v) == 'string') then
+
table.insert(regexps, '^' .. v .. '$')
unknown = v
 
end
 
 
end
 
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
 
end
   
 
-- loop over the parent args, and make sure they are on the list
 
-- loop over the parent args, and make sure they are on the list
for k,v in pairs(pargs) do
+
for k, v in pairs(pargs) do
if (knownargs[k] == nil) then
+
if type(k) == 'string' and knownargs[k] == nil then
local r = mw.ustring.gsub(unknown, '_VALUE_', k)
+
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
  +
local vlen = mw.ustring.len(v)
  +
v = mw.ustring.sub(v, 1, (vlen < 25) and vlen or 25)
  +
v = mw.ustring.gsub(v, '[^%w\-_ ]', '?')
  +
table.insert(values, k .. ' = ' .. v .. ((vlen >= 25) and ' ...' or ''))
  +
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)
 
table.insert(res, r)
 
end
 
end
 
end
 
end
   
return table.concat(res, '\n')
+
return table.concat(res)
 
end
 
end
   

Latest revision as of 09:59, 16 November 2019

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
			local vlen = mw.ustring.len(v)
			v = mw.ustring.sub(v, 1, (vlen < 25) and vlen or 25) 
			v = mw.ustring.gsub(v, '[^%w\-_ ]', '?')
			table.insert(values, k .. ' = ' .. v .. ((vlen >= 25) and ' ...' or ''))
		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