This module issubject to page protection. It is ahighly visible module in use by a very large number of pages, or issubstituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it isprotected from editing.
This module depends on the following other modules:
This module may be appended to a template to check for uses of unknown parameters. Unlike many other modules, this module isnot implemented by a template.
{{#invoke:Check for unknown parameters|check|unknown=[[Category:Some tracking category]]|arg1|arg2|arg3|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=<spanclass="error">Sorry, I don't recognize _VALUE_</span>|arg1|arg2|...|argN}}
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 theunknown 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. Toinclude blank positional parameters in the tracking use|showblankpositional=1.
This module supportsLua patterns (similar toregular expressions), which are useful when there are many known parameters which use a systematic pattern. For example,Infobox3cols uses
-- 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 listlocalp={}localfunctiontrim(s)returns:match('^%s*(.-)%s*$')endlocalfunctionisnotempty(s)returnsands:match('%S')endlocalfunctionclean(text)-- Return text cleaned for display and truncated if too long.-- Strip markers are replaced with dummy text representing the original wikitext.localpos,truncatedlocalfunctiontruncate(text)iftruncatedthenreturn''endifmw.ustring.len(text)>25thentruncated=truetext=mw.ustring.sub(text,1,25)..'...'endreturnmw.text.nowiki(text)endlocalparts={}forbefore,tag,remainderintext:gmatch('([^\127]*)\127[^\127]*%-(%l+)%-[^\127]*\127()')dopos=remaindertable.insert(parts,truncate(before)..'<'..tag..'>...</'..tag..'>')endtable.insert(parts,truncate(text:sub(posor1)))returntable.concat(parts)endfunctionp._check(args,pargs)iftype(args)~="table"ortype(pargs)~="table"then-- TODO: error handlingreturnend-- create the list of known args, regular expressions, and the return stringlocalknownargs={}localregexps={}fork,vinpairs(args)doiftype(k)=='number'thenv=trim(v)knownargs[v]=1elseifk:find('^regexp[1-9][0-9]*$')thentable.insert(regexps,'^'..v..'$')endend-- loop over the parent args, and make sure they are on the listlocalignoreblank=isnotempty(args['ignoreblank'])localshowblankpos=isnotempty(args['showblankpositional'])localvalues={}fork,vinpairs(pargs)doiftype(k)=='string'andknownargs[k]==nilthenlocalknownflag=falsefor_,regexpinipairs(regexps)doifmw.ustring.match(k,regexp)thenknownflag=truebreakendendifnotknownflagand(notignoreblankorisnotempty(v))thentable.insert(values,clean(k))endelseiftype(k)=='number'andknownargs[tostring(k)]==nilthenlocalknownflag=falsefor_,regexpinipairs(regexps)doifmw.ustring.match(tostring(k),regexp)thenknownflag=truebreakendendifnotknownflagand(showblankposorisnotempty(v))thentable.insert(values,k..' = '..clean(v))endendend-- add results to the output tableslocalres={}if#values>0thenlocalunknown_text=args['unknown']or'Found _VALUE_, 'ifmw.getCurrentFrame():preprocess("{{REVISIONID}}")==""thenlocalpreview_text=args['preview']ifisnotempty(preview_text)thenpreview_text=require('Module:If preview')._warning({preview_text})elseifpreview==nilthenpreview_text=unknown_textendunknown_text=preview_textendfor_,vinpairs(values)do-- Fix odd bug for | = which gets stripped to the empty string and-- breaks category linksifv==''thenv=' 'end-- avoid error with v = 'example%2' ("invalid capture index")localr=unknown_text:gsub('_VALUE_',{_VALUE_=v})table.insert(res,r)endendreturntable.concat(res)endfunctionp.check(frame)localargs=frame.argslocalpargs=frame:getParent().argsreturnp._check(args,pargs)endreturnp
