 | This module is rated as beta, 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 Lua module is used on approximately 1,380,000 pages, or roughly 2% of all pages. To avoid major disruption and server load, any changes should be tested in the module's /sandboxor/testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them. |
 | This module depends on the following other modules:
|
This module may be appended to a template to check for uses of tuples of conflicting parameters.
{{#invoke:Check for clobbered parameters|check
|nested=1|template=Some template name
|cat={{main other|Category:Some tracking category}}
|arg1a; arg1b|arg2a; arg2b; arg2c|...|argNa; argNb}}
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.
{{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
}}
{{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
}}
local p = {}
local function trim(s)
return s:match('^%s*(.-)%s*$')
end
local function isnotempty(s)
return s and s:match('%S')
end
function p.check(frame)
local args = frame.args
local pargs = frame:getParent().args
local checknested = isnotempty(args['nested'])
local delimiter = isnotempty(args['delimiter']) and args['delimiter'] or ';'
local argpairs = {}
for k, v in pairs(args) do
if type(k) == 'number' then
local plist = mw.text.split(v, delimiter)
local pfound = {}
local count = 0
for ii, vv in ipairs(plist) do
vv = trim(vv)
if checknested and pargs[vv] or isnotempty(pargs[vv]) then
count = count + 1
table.insert(pfound, vv)
end
end
if count > 1 then
table.insert(argpairs, pfound)
end
end
end
local warnmsg = {}
local res = ''
local cat = ''
if args['cat'] and mw.ustring.match(args['cat'],'^[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]:') then
cat = args['cat']
end
local template = args['template'] and ' in ' .. args['template'] or ''
if #argpairs > 0 then
for i, v in ipairs( argpairs ) do
table.insert(
warnmsg,
mw.ustring.format(
'Using more than one of the following parameters%s: <code>%s</code>.',
template,
table.concat(v, '</code>, <code>')
)
)
if cat ~= '' then
res = res .. '[[' .. cat .. '|' .. (v[1] == '' and ' ' or '') .. v[1] .. ']]'
end
end
end
if #warnmsg > 0 then
res = require('Module:If preview')._warning({
table.concat(warnmsg, '<br>')
}) .. res
end
return res
end
return p