Modul:Unsubst
| Dette Lua-modul bruges på ca. 36.000 sider, eller omkring 4% af alle sider. For at undgå store forstyrrelser og unødvendigt pres på serverne, bør alle ændringer af skabelonen først afprøves i dens tilhørende modulets /sandkasse eller /test-undersider, eller i din egen module sandkasse. De færdigafprøvede ændringer kan derefter overføres til denne side ved en enkelt redigering. Du bør også overveje at diskutere ændringer på diskussionssiden før du implementerer dem. |
Forklaring om brug af dette modul kommer fra den engelske Wikipedia og er ikke oversat til dansk endnu. Der er tale om et hjælpemodul, som bl.a. bruges af matematiske skabeloner.
Helper module to facilitate a substituted template transform into a template transclusion.
Maintenance templates, such as {{Citation needed}} or {{Refimprove}}, should never be substituted. A trick to avoid that is to make a template substitute to its transcluded form.
Brug
To turn a template into a self-substituting template, wrap the existing template code with:
{{ {{{|safesubst:}}}#invoke:Unsubst||$B= [ ... existing template code ... ] }} The wikitext to display when not substed must be given as "$B". A parameter "$N" may also be seen in some templates; this was required in an older version of the module, but is no longer necessary and may be removed. Such templates are automatically placed in Category:Calls to Module:Unsubst that use $N.
All other parameters passed to the #invoke will be copied to the generated template invocation as default values. If the value of any of these default parameters is "__DATE__", that value in the generated template invocation will be the current month and year.
Some templates have a <noinclude> but no matching </noinclude> at the end of the template. In such cases the missing </noinclude> must be added before the ending }}.
Example
Consider a template Template:Example containing the following code:
{{ {{{|safesubst:}}}#invoke:Unsubst||foo=bar |date=__DATE__ |$B= [ ... Template code goes here ... ] }} | Original | Result |
|---|---|
| {{subst:example}} | {{Example|foo=bar|date=april 2026}} |
| {{subst:example|foo=X}} | {{Example|foo=X|date=april 2026}} |
| {{subst:example|baz=X}} | {{Example|foo=bar|baz=X|date=april 2026}} |
| {{subst:example|date=January 2001}} | {{Example|foo=bar|date=January 2001}} |
local checkType = require('libraryUtil').checkType local p = {} local BODY_PARAM = '$B' local specialParams = { ['$params'] = 'parameter list', ['$aliases'] = 'parameter aliases', ['$flags'] = 'flags', ['$B'] = 'template content' } function p.main(frame, body) -- If we are substing, this function returns a template invocation, and if -- not, it returns the template body. The template body can be specified in -- the body parameter, or in the template parameter defined in the -- BODY_PARAM variable. This function can be called from Lua or from -- #invoke. -- Return the template body if we aren't substing. if not mw.isSubsting() then if body ~= nil then return body elseif frame.args[BODY_PARAM] ~= nil then return frame.args[BODY_PARAM] else error(string.format( "no template content specified (use parameter '%s' from #invoke)", BODY_PARAM ), 2) end end -- Sanity check for the frame object. if type(frame) ~= 'table' or type(frame.getParent) ~= 'function' or not frame:getParent() then error( "argument #1 to 'main' must be a frame object with a parent " .. "frame available", 2 ) end -- Find the invocation name. local mTemplateInvocation = require('Modul:Template invocation') local name = mTemplateInvocation.name(frame:getParent():getTitle()) -- Combine passed args with passed defaults local args = {} if string.find( ','..(frame.args['$flags'] or '')..',', ',%s*override%s*,' ) then for k, v in pairs( frame:getParent().args ) do args[k] = v end for k, v in pairs( frame.args ) do if not specialParams[k] then if v == '__DATE__' then v = mw.getContentLanguage():formatDate( 'F Y' ) end args[k] = v end end else for k, v in pairs( frame.args ) do if not specialParams[k] then if v == '__DATE__' then v = mw.getContentLanguage():formatDate( 'F Y' ) end args[k] = v end end for k, v in pairs( frame:getParent().args ) do args[k] = v end end -- Trim parameters, if not specified otherwise if not string.find( ','..(frame.args['$flags'] or '')..',', ',%s*keep%-whitespace%s*,' ) then for k, v in pairs( args ) do args[k] = mw.ustring.match(v, '^%s*(.*)%s*$') or '' end end -- Pull information from parameter aliases local aliases = {} if frame.args['$aliases'] then local list = mw.text.split( frame.args['$aliases'], '%s*,%s*' ) for k, v in ipairs( list ) do local tmp = mw.text.split( v, '%s*>%s*' ) aliases[tonumber(mw.ustring.match(tmp[1], '^[1-9][0-9]*$')) or tmp[1]] = ((tonumber(mw.ustring.match(tmp[2], '^[1-9][0-9]*$'))) or tmp[2]) end end for k, v in pairs( aliases ) do if args[k] and ( not args[v] or args[v] == '' ) then args[v] = args[k] end args[k] = nil end -- Remove empty parameters, if specified if string.find( ','..(frame.args['$flags'] or '')..',', ',%s*remove%-empty%s*,' ) then local tmp = 0 for k, v in ipairs( args ) do if v ~= '' or ( args[k+1] and args[k+1] ~= '' ) or ( args[k+2] and args[k+2] ~= '' ) then tmp = k else break end end for k, v in pairs( args ) do if v == '' then if not (type(k) == 'number' and k < tmp) then args[k] = nil end end end end -- Order parameters if frame.args['$params'] then local params, tmp = mw.text.split( frame.args['$params'], '%s*,%s*' ), {} for k, v in ipairs(params) do v = tonumber(mw.ustring.match(v, '^[1-9][0-9]*$')) or v if args[v] then tmp[v], args[v] = args[v], nil end end for k, v in pairs(args) do tmp[k], args[k] = args[k], nil end args = tmp end return mTemplateInvocation.invocation(name, args) end p[''] = p.main -- For backwards compatibility return p