This module is rated asbeta, and is ready for widespread use. It is still new and should be used with some caution to ensure the results are as expected.
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.
Here, (arg1a,arg1b), (arg2a,arg2b,arg2c), are tuples of the conflicting parameters.
By default, the module ignores blank parameters which is useful for{{if empty}} chains of parameters. For nested chains of parameters, use|nested=1 to consider blank parameters as well.
By default, the delimiter for the tuples is; but this can be changed with|delimiter=.
The value of|template= is used to for the text of the preview warning message. When omitted, the module will use a generic message.
Example 1
{{Infobox| above={{{name|}}}| label1= Founder{{#if:{{{founders|}}}|s}}| data1={{if empty|{{{founders|}}}|{{{founder|}}}}}| label2= Headquarters| data2={{if empty|{{{headquarters|}}}|{{{hq|}}}|{{{location|}}}}}}}<!-- end infobox, start tracking-->{{#invoke:Check for clobbered parameters|check| template= Infobox example| cat={{main other|Category:Pages using infobox example with conflicting parameters}}| founders; founder| headquarters; hq; location}}
Example 2
{{Infobox| above={{{name|}}}| label1= Founder(s)| data1={{{founders|{{{founder|}}}}}}| label2= Headquarters| data2={{{headquarters|{{{hq|{{{location|}}}}}}}}}}}<!-- end infobox, start tracking-->{{#invoke:Check for clobbered parameters|check| nested= 1| template= Infobox example| cat={{main other|Category:Pages using infobox example with conflicting parameters}}| founders; founder| headquarters; hq; location}}
localp={}localfunctiontrim(s)returns:match('^%s*(.-)%s*$')endlocalfunctionisnotempty(s)returnsands:match('%S')endfunctionp.check(frame)localargs=frame.argslocalpargs=frame:getParent().argslocalchecknested=isnotempty(args['nested'])localdelimiter=isnotempty(args['delimiter'])andargs['delimiter']or';'localargpairs={}fork,vinpairs(args)doiftype(k)=='number'thenlocalplist=mw.text.split(v,delimiter)localpfound={}localcount=0forii,vvinipairs(plist)dovv=trim(vv)ifchecknestedandpargs[vv]orisnotempty(pargs[vv])thencount=count+1table.insert(pfound,vv)endendifcount>1thentable.insert(argpairs,pfound)endendendlocalwarnmsg={}localres=''localcat=''ifargs['cat']andmw.ustring.match(args['cat'],'^[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]:')thencat=args['cat']endlocaltemplate=args['template']and' in '..args['template']or''if#argpairs>0thenfori,vinipairs(argpairs)dotable.insert(warnmsg,mw.ustring.format('Using more than one of the following parameters%s: <code>%s</code>.',template,table.concat(v,'</code>, <code>')))ifcat~=''thenres=res..'[['..cat..'|'..(v[1]==''and' 'or'')..v[1]..']]'endendendif#warnmsg>0thenres=require('Module:If preview')._warning({table.concat(warnmsg,'<br>')})..resendreturnresendreturnp
