पटलम्:Check for unknown parameters
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This module may be appended to a template to check for uses of unknown parameters.
Usage
[सम्पादयतु]Basic usage
[सम्पादयतु]{{#invoke:check for unknown parameters|check |unknown=[[Category:Some tracking category]] |arg1|arg2|...|argN}}
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_" |arg1|arg2|...|argN}}
or for an explicit red error message
{{#invoke:check for unknown parameters|check |unknown=<span class="error">Sorry, I don't recognize _VALUE_</span> |arg1|arg2|...|argN}}
Here, arg1
, arg2
, ..., argN
, are the known parameters. 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. To only track non-blank parameters use |ignoreblank=1
.
By default, the module ignores blank positional parameters. To include blank positional parameters in the tracking use |showblankpositional=1
.
Lua patterns
[सम्पादयतु]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
[सम्पादयतु]{{Infobox | 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 = [[Category:Some tracking category|_VALUE_]] | preview = unknown parameter "_VALUE_" | name | height | weight | website }}
Templates invoking this module
[सम्पादयतु]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
[सम्पादयतु]- 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. some of the things checked are:
- use of undeclared parameters, 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
- quite a lot more
-- 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