मोड्युल:Check for unknown parameters

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This module may be appended to a template to check for uses of unknown parameters.

Usage[स्रोत सम्पादन]

Basic usage[स्रोत सम्पादन]

{{#invoke:check for unknown parameters|check
|unknown=[[Category:Some tracking category]]

or to sort the entries in the tracking category by parameter with a preview error message

{{#invoke:check for unknown parameters|check
|unknown=[[Category:Some tracking category|_VALUE_]]
|preview=unknown parameter "_VALUE_"

or for an explicit red error message

{{#invoke:check for unknown parameters|check
|unknown=<span class="error">Sorry, I don't recognize _VALUE_</span>

Here, arg1, arg2, ..., argN, are the known parameters. Unnamed (positional) parameters can be added too: |1|2|argname1|argname2|.... Any parameter which is used, but not on this list, will cause the module to return whatever is passed with the unknown parameter. The _VALUE_ keyword, if used, will be changed to the name of the parameter. This is useful for either sorting the entries in a tracking category, or for provide more explicit information.

By default, the module makes no distinction between a defined-but-blank parameter and a non-blank parameter. That is, both unlisted |foo=x and |foo= are reported. To only track non-blank parameters use |ignoreblank=1.

By default, the module ignores blank positional parameters. That is, an unlisted |2= is ignored. To include blank positional parameters in the tracking use |showblankpositional=1.

Lua patterns[स्रोत सम्पादन]

This module supports Lua patterns (similar to regular expressions), which are useful when there are many known parameters which use a systematic pattern. For example, template:infobox3cols uses

| regexp1 = header[%d][%d]*
| regexp2 = label[%d][%d]*
| regexp3 = data[%d][%d]*[abc]?
| regexp4 = class[%d][%d]*[abc]?
| regexp5 = rowclass[%d][%d]*
| regexp6 = rowstyle[%d][%d]*
| regexp7 = rowcellstyle[%d][%d]*

to match all parameters of the form headerNUM, labelNUM, dataNUM, dataNUMa, dataNUMb, dataNUMc, ..., rowcellstyleNUM, where NUM is a string of digits.

Example[स्रोत सम्पादन]

| above = {{{name|}}}

| label1 = Height
| data1 = {{{height|}}}

| label2 = Weight
| data2 = {{{weight|}}}

| label3 = Website
| data3 = {{{website|}}}
  end infobox, start tracking
-->{{#invoke:Check for unknown parameters|check
| unknown = {{main other|[[Category:Some tracking category|_VALUE_]]}}
| preview = unknown parameter "_VALUE_"
| name
| height | weight
| website

Templates invoking this module[स्रोत सम्पादन]

The following is a list of some of the templates which invoke this module, with the associated category for each.

For a more up-to-date list, search for the "check for unknown parameters" within the template namespace.

See also[स्रोत सम्पादन]

  • Category:Unknown parameters (०) (category page can have {{Unknown params category}})
  • module:TemplatePar (originally from dewiki)
  • Template:Parameters and Module:Parameters – generates a list of parameter names for a given template
  • he:Module:ParamValidator - parameter validation system on hewiki, relies on TemplateData. module doc in English. checks the following:
    • use of undeclared parameters
    • use of parameters marked in templatedata "deprecated"
    • mistyped (mainly, params declared in templatedata as "number" receiving non-numerical value)
    • missing parameters marked in TemplateData as "required"
    • understands aliases, and warns when more than one alias of a parameter is used

-- 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 = {}

function p.check (frame)
	local args = frame.args
	local pargs = frame:getParent().args
	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
			if (k == 'unknown' and type(v) == 'string') then
				unknown = v

	-- 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
			k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
			local r = mw.ustring.gsub(unknown, '_VALUE_', k)
			table.insert(res, r)

	return table.concat(res)

return p