This module allows you to output different text depending on the namespace that a given page is in.
This template is used on 9,900,000 pages. To avoid large-scale disruption and unnecessary server load, any changes to this template should first be tested in its /sandbox or /testcases subpages, or in your own user space. The tested changes can then be added to this page in one single edit. Please consider discussing any changes on the talk page before implementing them. |
It is a Lua implementation of the {{namespace detect}} template, with a few improvements: all namespaces and all namespace aliases are supported, and namespace names are detected automatically for the local wiki.
{{#invoke: Namespace detect | main | page = | main = | talk = | portal = | category = | user = | wikipedia = | wp = | education program = | mediawiki = | book = | timedtext = | template = | special = | media = | file = | image = | help = | module = | other = | demospace = | subjectns = }}
|demospace=
is set to an invalid namespace value.|demospace=
parameter is not set, then the module uses the current page.Possible values for subject namespace parameters are as follows:
Namespace | Aliases |
---|---|
main | |
cleachdaiche | user |
uicipeid | project , wikipedia , wp |
faidhle | file , image |
mediawiki | |
teamplaid | template |
cobhair | help |
roinn-seòrsa | category |
timedtext | |
mòideal | module |
Use the following to display a table with the different possible namespace parameters:
{{#invoke:Namespace detect|table|talk=yes}}
To include the parameter for talk namespaces, use |talk=yes
.
This module is designed to be portable. To use it on a different wiki, all you need to do is to change the values in Module:Namespace detect/config. Instructions are available on that page.
The module uses a data page at Module:Namespace detect/data. This page is loaded with mw.loadData, which means it is processed once per page rather than once per #invoke. This was done for performance reasons.
--[[ -------------------------------------------------------------------------------- -- -- -- NAMESPACE DETECT -- -- -- -- This module implements the {{namespace detect}} template in Lua, with a -- -- few improvements: all namespaces and all namespace aliases are supported, -- -- and namespace names are detected automatically for the local wiki. The -- -- module can also use the corresponding subject namespace value if it is -- -- used on a talk page. Parameter names can be configured for different wikis -- -- by altering the values in the "cfg" table in -- -- Module:Namespace detect/config. -- -- -- -------------------------------------------------------------------------------- --]] local data = mw.loadData('Module:Namespace detect/data') local argKeys = data.argKeys local cfg = data.cfg local mappings = data.mappings local yesno = require('Module:Yesno') local mArguments -- Lazily initialise Module:Arguments local mTableTools -- Lazily initilalise Module:TableTools local ustringLower = mw.ustring.lower local p = {} local function fetchValue(t1, t2) -- Fetches a value from the table t1 for the first key in array t2 where -- a non-nil value of t1 exists. for i, key in ipairs(t2) do local value = t1[key] if value ~= nil then return value end end return nil end local function equalsArrayValue(t, value) -- Returns true if value equals a value in the array t. Otherwise -- returns false. for i, arrayValue in ipairs(t) do if value == arrayValue then return true end end return false end function p.getPageObject(page) -- Get the page object, passing the function through pcall in case of -- errors, e.g. being over the expensive function count limit. if page then local success, pageObject = pcall(mw.title.new, page) if success then return pageObject else return nil end else return mw.title.getCurrentTitle() end end -- Provided for backward compatibility with other modules function p.getParamMappings() return mappings end local function getNamespace(args) -- This function gets the namespace name from the page object. local page = fetchValue(args, argKeys.demopage) if page == '' then page = nil end local demospace = fetchValue(args, argKeys.demospace) if demospace == '' then demospace = nil end local subjectns = fetchValue(args, argKeys.subjectns) local ret if demospace then -- Handle "demospace = main" properly. if equalsArrayValue(argKeys.main, ustringLower(demospace)) then ret = mw.site.namespaces[0].name else ret = demospace end else local pageObject = p.getPageObject(page) if pageObject then if pageObject.isTalkPage then -- Get the subject namespace if the option is set, -- otherwise use "talk". if yesno(subjectns) then ret = mw.site.namespaces[pageObject.namespace].subject.name else ret = 'talk' end else ret = pageObject.nsText end else return nil -- return nil if the page object doesn't exist. end end ret = ret:gsub('_', ' ') return ustringLower(ret) end function p._main(args) -- Check the parameters stored in the mappings table for any matches. local namespace = getNamespace(args) or 'other' -- "other" avoids nil table keys local params = mappings[namespace] or {} local ret = fetchValue(args, params) --[[ -- If there were no matches, return parameters for other namespaces. -- This happens if there was no text specified for the namespace that -- was detected or if the demospace parameter is not a valid -- namespace. Note that the parameter for the detected namespace must be -- completely absent for this to happen, not merely blank. --]] if ret == nil then ret = fetchValue(args, argKeys.other) end return ret end function p.main(frame) mArguments = require('Module:Arguments') local args = mArguments.getArgs(frame, {removeBlanks = false}) local ret = p._main(args) return ret or '' end function p.table(frame) --[[ -- Create a wikitable table-responsive of all subject namespace parameters, for -- documentation purposes. The talk parameter is optional, in case it -- needs to be excluded in the documentation. --]] -- Load modules and initialise variables. mTableTools = require('Module:TableTools') local namespaces = mw.site.namespaces local cfg = data.cfg local useTalk = type(frame) == 'table' and type(frame.args) == 'table' and yesno(frame.args.talk) -- Whether to use the talk parameter. -- Get the header names. local function checkValue(value, default) if type(value) == 'string' then return value else return default end end local nsHeader = checkValue(cfg.wikitable table-responsive NamespaceHeader, 'Namespace') local aliasesHeader = checkValue(cfg.wikitable table-responsive AliasesHeader, 'Aliases') -- Put the namespaces in order. local mappingsOrdered = {} for nsname, params in pairs(mappings) do if useTalk or nsname ~= 'talk' then local nsid = namespaces[nsname].id -- Add 1, as the array must start with 1; nsid 0 would be lost otherwise. nsid = nsid + 1 mappingsOrdered[nsid] = params end end mappingsOrdered = mTableTools.compressSparseArray(mappingsOrdered) -- Build the table. local ret = '{| class="duhoc-gd wikitable table-responsive "' .. '\n|-' .. '\n! ' .. nsHeader .. '\n! ' .. aliasesHeader for i, params in ipairs(mappingsOrdered) do for j, param in ipairs(params) do if j == 1 then ret = ret .. '\n|-' .. '\n| '
.. param .. '' .. '\n| ' elseif j == 2 then ret = ret .. ''
.. param .. '' else ret = ret .. ', '
.. param .. '' end end end ret = ret .. '\n|-' .. '\n|}' return ret end return p